Rules for the design of technical requirements on the drawing. Writing specifications on weldment drawings

List of allowed abbreviations of words used in main inscriptions, technical requirements and tables on drawings and specifications

This International Standard specifies rules for labeling technical requirements and tables for drawings of products from all industries.

In addition to the image of the object with dimensions and maximum deviations, the drawing may contain:

a) a text part consisting of technical requirements and (or) technical characteristics;

b) an inscription with the designation of images, as well as those related to individual elements of the product;

c) tables with dimensions and other parameters, technical requirements, control complexes, symbols etc.

The execution of the main inscription of the drawing must be carried out in accordance with the requirements of GOST 2.104 – 68 and GOST 2. 109 – 73 .

The text part, inscriptions and tables are included in the drawing in cases where the data contained in them, instructions and explanations cannot or is not expedient to be expressed graphically or by symbols.

The text on the field of the drawing, tables, inscriptions with the designation of images, as well as inscriptions directly related to the image, as a rule, are placed parallel to the main inscription of the drawing.

Near the images on the shelves of leader lines, only brief inscriptions are applied that relate directly to the image of the object, for example, indications of the number of structural elements (holes, grooves, etc.), if they are not included in the table, as well as indications of the front side, directions rolled products, fibers, etc.

The leader line that intersects the contour of the image and is not diverted from any line ends with a dot (Fig. 1a).

The leader line drawn from the lines of the visible and invisible contour, as well as from the lines denoting surfaces, ends with an arrow (Fig. 1 b, in).

At the end of the leader line drawn from all other lines, there should be neither an arrow nor a dot (Fig. 1g).

Leader lines should not intersect with each other, be non-parallel hatching lines (if the leader line passes through the hatched field) and, if possible, not cross dimension lines and image elements that do not include the inscription placed on the shelf.

a) ends with a dot

b) ends with an arrow

c) ends with an arrow

d) without a dot and an arrow at the end

Figure 1. Examples of using leader line

It is allowed to carry out leader lines with one break (Fig. 2 ), as well as draw two or more leader lines from one shelf (Fig. 3 ).

Captions related directly to the image can contain no more than two lines located above and below the leader line shelf.

The text part placed on the drawing field is placed above the main inscription.

It is not allowed to place images, tables, etc. between the text part and the main inscription.

On sheets larger than A4, it is allowed to place text in two or more columns. The width of the column should be no more than 185 mm.

Leave room in the drawing to continue the change page.

On the drawing of a product for which a table of parameters is established by the standard (for example, a gear, a worm, etc.), it is placed according to the rules established by the corresponding standard. All other tables are placed in the free space of the drawing field to the right of the image or below it and are performed in accordance with GOST 2.105 – 79.

The technical requirements in the drawing are set out by grouping together requirements that are homogeneous and similar in nature, if possible in the following sequence:

a) requirements for the material, workpiece, heat treatment and material properties of the finished part (electrical, magnetic, dielectric, hardness, humidity, hygroscopicity, etc.), an indication of substitute materials;

b) dimensions, maximum deviations of dimensions, shape and relative position of surfaces, masses, etc.;

c) requirements for the quality of surfaces, instructions on their finishing, coating;

d) gaps, location of individual structural elements;

e) requirements for setting up and regulating the product;

f) other requirements for the quality of products, for example: noiselessness, vibration resistance, self-braking, etc.;

g) conditions and test methods;

h) an indication of marking and branding;

i) rules for transportation and storage;

j) special operating conditions;

Clauses of technical requirements must have continuous numbering. Each item of technical requirements is written on a new line.

The heading "Technical requirements" is not written.

If it is necessary to indicate the technical characteristics of the product, it is placed separately from the technical requirements, with independent numbering of paragraphs, in the free field of the drawing under the heading " Technical specifications". At the same time, the heading "Technical requirements" is placed above the technical requirements. Both headings are underlined.

When performed on two or more sheets, the text part is placed only on the first sheet, regardless of which sheets contain the images, which include the instructions given in the text part.

The inscriptions relating to the individual elements of the subject and applied on the shelves of the leader lines are placed on those sheets of the drawing on which they are most necessary for ease of reading the drawing.

To designate images (views, sections, sections), surfaces, dimensions and other elements of the product in the drawing, capital letters of the Russian alphabet are used, with the exception of the letters Y, O, X, b, Y, b.

Letter designations are assigned in alphabetical order without repetition and, as a rule, without gaps, regardless of the number of drawing sheets. It is preferable to designate images first.

In case of a lack of letters, digital indexing is used, for example: "A"; "A 1"; "A 2"; "B - B"; "B 1 - B 1"; "B 2 - B 2".

Font size letters should be approximately twice the size of the digits of the dimensional numbers used in the same drawing.

The scale of the image in the drawing, which differs from that indicated in the main inscription, is indicated immediately after the inscription related to the image, for example:

A - A (1: 1); B(5:1); A(2:1).

In these cases, above the additional images, their designations indicate the numbers of sheets or designations of zones on which additional images are canceled (Fig. 5 ).

The tables placed on the drawing are numbered within the drawing if there are references to them in the technical requirements. At the same time, the word “Table” with a serial number (without the number sign) is placed above the table on the right.

If there is only one table in the drawing, then it is not numbered and the word "Table" is not written.

Full name

Reduction

Full name

Reduction

Without drawing

Approved

Processing, processing

Upper deviation

upper shutdown

Hole

Center hole

resp. Centre.

Interior

Relatively

Deviation

Primary

applicability

Document

Plane

Duplicate

Surface

blank

Script

countersink, countersink

Notice

Change

purchase, purchase

Inventory

In order

Tool

Limit deviation

prev. off

Execution

Appendix

Class (accuracy, purity)

Note

Quantity

checked

Conical

Constructor

Design department

Developed

Design department

Calculated

Taper

registration, registration

taper

taper

Supervisor

Laboratory

Assembly drawing

Metal

Special

Metallurgist

Specification

Reference

largest

standard, standard

Least

Outer

Page

Boss

Norm control

N. contr.

Hardness

Lower Deviation

lower off

Theoretical

Nominal

Nominal pressure

conv. pressure

Provide

Conditional pass

conv. proh.

Technical requirements

Chemical

Specifications

cementation, cementing

Technical task

Center of mass

Technologist

Cylindrical

Technological control

T.contr. *

high frequency current

Roughness

instance

Accuracy, accurate

Notes:

1. Abbreviations marked with “ * ”, are used only in the title block.

2. Abbreviation "table." They are used in the text only in cases where the tables have numbers.

GOST 2.316-68

INTERSTATE STANDARD

UNIFIED SYSTEM OF DESIGN DOCUMENTATION

RULES OF APPLICATION ON DRAWINGS
LABELING, TECHNICAL REQUIREMENTS
AND TABLES

IPK STANDARDS PUBLISHING HOUSE

Moscow

INTERSTATE STANDARD

Approved by the Committee of Standards, Measures and Measuring Instruments under the Council of Ministers of the USSR in December 1967. The deadline for introduction is set

from 01.01.71

1. This standard establishes the rules for applying inscriptions, technical requirements and tables on the drawings of products in all industries.

(Changed edition, Rev. No. 1, 2,).

2. In addition to the image of the object with dimensions and maximum deviations, the drawing may contain:

a) a text part consisting of technical requirements and (or) technical characteristics;

b) inscriptions with the designation of images, as well as those related to individual elements of the product;

c) tables with dimensions and other parameters, technical requirements, control complexes, symbols, etc.

3. The execution of the main inscription of the drawing must be carried out in accordance with the requirements of GOST 2.104-68 and GOST 2.109-73.

4. The text part, inscriptions and tables are included in the drawing in cases where the data contained in them, instructions and explanations cannot or is not expedient to be expressed graphically or by symbols.

6. The text on the drawing field, tables, inscriptions with the designation of images, as well as inscriptions directly related to the image, as a rule, are placed parallel to the main inscription of the drawing.

7. Near the images on the shelves of leader lines, only brief inscriptions are applied that are directly related to the image of the object, for example, indications of the number of structural elements (holes, grooves, etc.), if they are not included in the table, as well as indications of the front side , rolling directions, fibers, etc.

8. The leader line that intersects the contour of the image and is not diverted from any line ends with a dot (Fig. 1 but) .

The leader line drawn from the lines of the visible and invisible contour, as well as from the lines denoting surfaces, ends with an arrow (Fig. 1 b, in) .

At the end of the leader line drawn from all other lines, there should be neither an arrow nor a dot (Fig. 1 G).

Heck. one

(Revised edition, Rev. No. 1).

9. Leader lines should not intersect with each other, be non-parallel to the hatching lines (if the leader line runs along the hatched field) and, if possible, not cross dimension lines and image elements that do not include the inscription placed on the shelf.

It is allowed to make leader lines with one break (Fig. 2), as well as to draw two or more leader lines from one shelf (Fig. 3).

Heck. 2

Heck. 3

10. Inscriptions related directly to the image may contain no more than two lines located above and below the leader line shelf.

11. The text part placed on the drawing field is placed above the main inscription.

It is not allowed to place images, tables, etc. between the text part and the main inscription.

On sheets larger than A4, it is allowed to place text in two or more columns. The width of the column should be no more than 185 mm.

In the drawing, leave room for the continuation of the table of changes.

(Revised edition, Rev. No. 3).

12. On the drawing of a product for which a table of parameters has been established by the standard (for example, a gear, a worm, etc.), it is placed according to the rules established by the corresponding standard. All other tables are placed in the free space of the drawing field to the right of the image or below it and are performed in accordance with GOST 2.105-95.

13. The technical requirements in the drawing are set out by grouping together requirements that are homogeneous and similar in nature, if possible in the following sequence:

a) requirements for the material, workpiece, heat treatment and material properties of the finished part (electrical, magnetic, dielectric, hardness, humidity, hygroscopicity, etc.), an indication of substitute materials;

b) dimensions, maximum deviations of dimensions, shape and relative position of surfaces, masses, etc.;

c) requirements for the quality of surfaces, instructions on their finishing, coating;

d) gaps, location of individual structural elements;

e) requirements for setting up and regulating the product;

f) other requirements for the quality of products, for example: noiselessness, vibration resistance, self-braking, etc.;

g) conditions and test methods;

h) instructions on marking and branding;

i) rules for transportation and storage;

j) special operating conditions;

14. Paragraphs of technical requirements must have continuous numbering. Each item of technical requirements is written on a new line.

15. The heading "Technical requirements" is not written.

16. If it is necessary to indicate the technical characteristics of the product, it is placed separately from the technical requirements, with independent numbering of paragraphs, in the free field of the drawing under the heading "Technical characteristics". At the same time, the heading "Technical requirements" is placed above the technical requirements. Both headings are underlined.

17. When drawing on two or more sheets, the text part is placed only on the first sheet, regardless of which sheets contain images, which include the instructions given in the text part.

The inscriptions relating to the individual elements of the subject and applied to the shelves of the leader lines are placed on those sheets of the drawing on which they are most necessary for ease of reading the drawing.

18. To designate images (views, sections, sections), surfaces, dimensions and other elements of the product in the drawing, capital letters of the Russian alphabet are used, with the exception of the letters Y, O, X, b, Y, b.

Letter designations are assigned in alphabetical order without repetition and, as a rule, without gaps, regardless of the number of drawing sheets. It is preferable to designate images first.

In case of a lack of letters, digital indexing is used, for example: "A"; "A 1"; “A 2; "B-B"; "B 1 -B 1"; "B 2 -B 2".

The letters are not underlined.

(Revised edition, Rev. No. 3).

19. The font size of the letter designations should be approximately twice the size of the digits of the dimensional numbers used in the same drawing.

20. The scale of the image in the drawing, which differs from that indicated in the main inscription, is indicated immediately after the inscription related to the image, for example:

A - A (1: 1); B (5:1); A (2:1).

If in the drawing it is difficult to find additional images (sections, cuts, additional views, remote elements) due to the high saturation of the drawing or its execution on two or more sheets, then the designation of additional images indicates the numbers of sheets or designations of the zones on which these images are placed (Fig. . 4).


Heck. 4

In these cases, above additional images, their designations indicate the numbers of sheets or designations of zones on which additional images are marked (Fig. 5).

In the technical requirements on the drawings of welded structures, it is recommended to provide the following data:

1) brand of electrodes or filler wire.

Instead of the brand, it is allowed to indicate the type of electrode according to the relevant state standards. It is allowed to indicate instead of grades and types of electrodes and grades of filler wires necessary requirements to the strength and other properties of seams or welded joints;

2) information about the need for heat treatment of the welded structure after welding;

3) information about the need, restriction or prohibition of editing;

4) controlled seams or sections of seams and the need for their control;

5) a group of welded joints;

6) constructive and technological norms preparation and assembly of edges for welding and controlled sizes of seams. They must comply with the requirements of regulatory and technical documents.

The following are examples of entries technical requirements on the drawings of welded structures.

For carbon steels ordinary quality (GOST 380-88), high-quality carbon structural steels (GOST 1050-88):

Welded seams according to GOST 5264-80.

2.

If the drawing contains standard and non-standard seams, then in the technical requirements they write:

1. Welding should be carried out with the E42A electrode (GOST 9467-75).

Welds №№ ... according to GOST 5264-80.

Welding of seams No. ... - manual arc.

It is allowed not to designate welds in the drawing, especially for spatial structures made of angles, channels, etc.

For example:

... At the junction of parts from channels, welding with T3 seams with a leg of at least 5 mm and C2 in accordance with GOST 5264-80 along the entire length of contact between the parts.

... At the junction of parts from sheets, welding with a C2 seam 50 mm long and 200 mm apart, welding parts from sheets to channels and flanges with a HI seam with a leg seam of at least 5 mm, 50 mm long with a 200 mm step according to GOST 5264-80.

... At the junction of parts from pipes, welding with a U5 seam with a leg of at least 5 mm in accordance with GOST 16037-80 along the entire length of contact between the parts.

... At the junction of parts from pipes with channels, welding with a T1 seam with a leg of at least 5 mm in accordance with GOST 5264-80.

... At the junction of pipe parts with tape, seam welding HI no GOST 5264-80.

For alloyed structural steels (GOST 4543-71):

1. Welding should be carried out with the E85A electrode (GOST 9467-75).

2. Welds according to GOST 5264-80.

3. Group welds... (industry standard).

For corrosion-resistant steels according to GOST 5632-72 ( steel 12X18H10T):

1. Welds according to GOST 14771-76.

2. Welding should be carried out with filler wire Sv06Kh19N9T GOST 2246-70.

3. It is allowed to replace it with wire Sv04Kh19N11MZ GOST 2246-70.

4. Electric arc welding is allowed. Electrode E-08X17N8M2 GOST 10052-75.

5. Group welds... (industry standard).

If a welded structure uses various ways welding, then the technical requirements should be recorded by type:

1. Electric arc welding electrode E-08Kh20N9G2B (GOST 10052-75). Electrode E-08Kh17N8M2 (GOST 10052-75) is allowed.

1. Group welds... (industry standard).

3. Welds made by electric arc welding should be controlled by radiographic method in accordance with GOST 7512-82.

4. The remaining welds should be made by argon arc welding with filler wire Sv06Kh19N9T (GOST 2246-70).

5. Welds made spot welding, groups... (industry standard).

If the assembly is welded from aluminum alloys of various grades:

Welded seams in accordance with GOST 14806-80, except for seam No. 1.

Welding seams No. 7 - No. 5 should be carried out with filler wire SvAMts (GOST 7871-75).

Welding seam No. 1 - with filler wire SvAMgb (GOST 7871-75).

Group welds... (industry standard).

For titanium alloys (GOST 19807-91) ( OT4, VT1-00):

1. Argon arc welding.

Group welds... (industry standard).

2. Welding wire SvOT4 OST1.90015-77.

Welding without filler wire is allowed.

3. Welded seams to control by radiographic method in accordance with GOST 7512-82.

4. After welding, perform dressing and annealing according to the instructions ...

Impact straightening and straightening using static loads is not allowed.

For material VT14, if equal strength of the weld with the base material is required, then the technical requirements write:

Welding wire SvSPT-2 OST-1.90015-77.

Without presenting requirements of equal strength to weld:

Welding wire CvBT1-00 OST - 1.90015-77.

Solder connections

Soldered joints - one-piece connections formed by the forces of molecular interaction between the parts to be joined and the filler material, called solder. Solder-alloy (based on tin, copper, silver) or pure metal, introduced in a molten state into the gap between the parts to be joined. The melting temperature of the solder is lower than the melting temperature of the parts materials. By design, soldered joints are similar to welded ones (Fig. 29, but - in). lap joints are predominantly used. Butt joint and tee joint are used for low loads.

Fig.29

Unlike welding, soldering allows you to connect not only homogeneous, but also dissimilar materials: ferrous and non-ferrous metals, alloys, ceramics, glass, etc.

When soldering, the surfaces of parts are cleaned of oxides and degreased in order to obtain good surface wettability with solder and high-quality filling of gaps with it. The heating of the solder and parts, depending on their size, is carried out with a soldering iron, gas burner, electric heating, in thermal furnaces, etc. To reduce the harmful effect of oxidation of the surface of parts during soldering, fluxes are used (based on borax, rosin, zinc chloride), and they are also soldered in a vacuum or in an environment of neutral gases (argon). The molten solder spreads over the heated joint surfaces of the parts and solidifies when cooled, firmly connecting the part.

The size of the gap in the joint determines the strength of the joint. With a small gap, the effect of the capillary flow of the solder is better manifested, the process of dissolving the materials of the parts in the molten solder extends to the entire thickness of the solder joint (the strength of the resulting solution is 30 ... 60% higher than the strength of the solder).

The gap size is 0.03 ... 0.2 mm, depending on the solder (fusible or refractory) and the material of the parts.

Solder with a melting point up to 400 ° C is called fusible. The most widely used are tin-lead, tin-lead antimony solders (POS90, POS61). These solders should not be used for joints operating at temperatures above 100 °C or subjected to impact loads.

Solders with a melting point above 400 0 C are called refractory (silver or copper-based). Copper-based solder (VPr1, VPr2) are characterized by increased fragility, they are used to connect parts loaded with a static load. Silver solders (PSr40, PSr45) are used for critical connections. They are resistant to corrosion and are suitable for joining parts subject to shock and vibration loads.

The advantage of solder joints is the ability to connect dissimilar materials, corrosion resistance, the ability to connect thin-walled parts, tightness, and low stress concentration due to the high plasticity of the solder. Soldering allows you to get connections of parts in hidden and hard-to-reach places of the structure.

The disadvantage of soldering compared to welding is the relatively low strength, the need for small and evenly distributed gaps between the parts to be joined, which requires their precise machining and high-quality assembly, as well as pre-treatment of surfaces before soldering.

The use of brazed joints in mechanical engineering is expanding due to the introduction of plastics, ceramics and high-strength steels, which are poorly welded. Soldering connects sheets, rods, pipes, etc. It is widely used in the automotive industry (radiators, etc.) and aircraft construction (skin with honeycomb intermediate filling). Soldering is one of the main types of connections in radio electronics and instrumentation.

Calculation of the strength of brazed joints is carried out for shear by methods of resistance of materials. It should be taken into account that in the lap joint, the area of ​​​​the calculated section is equal to the contact area of ​​\u200b\u200bthe parts. For lap joints of low-carbon steel parts obtained with tin-lead solders (POS40), allowable shear stress [τ] from\u003d 60 N / mm 2.

Adhesive connections

At present, permanent joints of metals and non-metallic materials, obtained gluing. These are the connections of parts with a non-metallic substance by means of surface setting and intermolecular bonding in the adhesive layer.

The most widely used adhesive joints are overlapped (Fig. 30), less often - butt. Adhesive joints have made it possible to expand the range of application in machine designs of combinations of various heterogeneous materials - steel, cast iron, aluminum, copper, brass, glass, plastics, rubber, leather, etc.

Fig.30. Adhesive lap joint

The use of universal adhesives such as BF, VK, MPF and others (more than a hundred different brands of adhesives are currently used) makes it possible to increase the strength of adhesive joints to 80% relative to the strength of the materials being glued. The greatest application in mechanical engineering is glued shear joints. The optimal thickness of the adhesive layer is 0.05…0.15 mm.

The strength of glued joints is affected by the nature of the load, the design of the joint, the type and thickness of the adhesive layer (with increasing thickness, the strength decreases), the bonding technology, and time (over time, the strength of some adhesives decreases).

The strength and density of the joint is ensured by good cleaning of the surfaces to be glued and squeezing them at temperatures from 15 to 100 ° C, followed by exposure from several minutes to several hours.

GOST 2.316-68

INTERSTATE STANDARD

UNIFIED SYSTEM OF DESIGN DOCUMENTATION

RULES OF APPLICATION ON DRAWINGS
LABELING, TECHNICAL REQUIREMENTS
AND TABLES

IPK STANDARDS PUBLISHING HOUSE

Moscow

INTERSTATE STANDARD

Approved by the Committee of Standards, Measures and Measuring Instruments under the Council of Ministers of the USSR in December 1967. The deadline for introduction is set

from 01.01.71

1. This standard establishes the rules for applying inscriptions, technical requirements and tables on the drawings of products in all industries.

(Changed edition, Rev. No. 1, 2,).

2. In addition to the image of the object with dimensions and maximum deviations, the drawing may contain:

a) a text part consisting of technical requirements and (or) technical characteristics;

b) inscriptions with the designation of images, as well as those related to individual elements of the product;

c) tables with dimensions and other parameters, technical requirements, control complexes, symbols, etc.

3. The execution of the main inscription of the drawing must be carried out in accordance with the requirements of GOST 2.104-68 and GOST 2.109-73.

4. The text part, inscriptions and tables are included in the drawing in cases where the data contained in them, instructions and explanations cannot or is not expedient to be expressed graphically or by symbols.

6. The text on the drawing field, tables, inscriptions with the designation of images, as well as inscriptions directly related to the image, as a rule, are placed parallel to the main inscription of the drawing.

7. Near the images on the shelves of leader lines, only brief inscriptions are applied that are directly related to the image of the object, for example, indications of the number of structural elements (holes, grooves, etc.), if they are not included in the table, as well as indications of the front side , rolling directions, fibers, etc.

8. The leader line that intersects the contour of the image and is not diverted from any line ends with a dot (Fig. 1 but) .

The leader line drawn from the lines of the visible and invisible contour, as well as from the lines denoting surfaces, ends with an arrow (Fig. 1 b, in) .

At the end of the leader line drawn from all other lines, there should be neither an arrow nor a dot (Fig. 1 G).

Heck. one

(Revised edition, Rev. No. 1).

9. Leader lines should not intersect with each other, be non-parallel to the hatching lines (if the leader line runs along the hatched field) and, if possible, not cross dimension lines and image elements that do not include the inscription placed on the shelf.

It is allowed to make leader lines with one break (Fig. 2), as well as to draw two or more leader lines from one shelf (Fig. 3).

Heck. 2

Heck. 3

10. Inscriptions related directly to the image may contain no more than two lines located above and below the leader line shelf.

11. The text part placed on the drawing field is placed above the main inscription.

It is not allowed to place images, tables, etc. between the text part and the main inscription.

On sheets larger than A4, it is allowed to place text in two or more columns. The width of the column should be no more than 185 mm.

In the drawing, leave room for the continuation of the table of changes.

(Changed edition, ).

12. On the drawing of a product for which a table of parameters has been established by the standard (for example, a gear, a worm, etc.), it is placed according to the rules established by the corresponding standard. All other tables are placed in the free space of the drawing field to the right of the image or below it and are performed in accordance with GOST 2.105-95.

13. The technical requirements in the drawing are set out by grouping together requirements that are homogeneous and similar in nature, if possible in the following sequence:

a) requirements for the material, workpiece, heat treatment and material properties of the finished part (electrical, magnetic, dielectric, hardness, humidity, hygroscopicity, etc.), an indication of substitute materials;

b) dimensions, maximum deviations of dimensions, shape and relative position of surfaces, masses, etc.;

c) requirements for the quality of surfaces, instructions on their finishing, coating;

d) gaps, location of individual structural elements;

e) requirements for setting up and regulating the product;

f) other requirements for the quality of products, for example: noiselessness, vibration resistance, self-braking, etc.;

g) conditions and test methods;

h) instructions on marking and branding;

i) rules for transportation and storage;

j) special operating conditions;

14. Paragraphs of technical requirements must have continuous numbering. Each item of technical requirements is written on a new line.

15. The heading "Technical requirements" is not written.

16. If it is necessary to indicate the technical characteristics of the product, it is placed separately from the technical requirements, with independent numbering of paragraphs, in the free field of the drawing under the heading "Technical characteristics". At the same time, the heading "Technical requirements" is placed above the technical requirements. Both headings are underlined.

17. When drawing on two or more sheets, the text part is placed only on the first sheet, regardless of which sheets contain images, which include the instructions given in the text part.

The inscriptions relating to the individual elements of the subject and applied to the shelves of the leader lines are placed on those sheets of the drawing on which they are most necessary for ease of reading the drawing.

18. To designate images (views, sections, sections), surfaces, dimensions and other elements of the product in the drawing, capital letters of the Russian alphabet are used, with the exception of the letters Y, O, X, b, Y, b.

Letter designations are assigned in alphabetical order without repetition and, as a rule, without gaps, regardless of the number of drawing sheets. It is preferable to designate images first.

In case of a lack of letters, digital indexing is used, for example: "A"; "A 1"; “A 2; "B-B"; "B 1 -B 1"; "B 2 -B 2".

The letters are not underlined.

(Changed edition, ).

19. The font size of the letter designations should be approximately twice the size of the digits of the dimensional numbers used in the same drawing.

20. The scale of the image in the drawing, which differs from that indicated in the main inscription, is indicated immediately after the inscription related to the image, for example:

A - A (1: 1); B (5:1); A (2:1).

If in the drawing it is difficult to find additional images (sections, cuts, additional views, remote elements) due to the high saturation of the drawing or its execution on two or more sheets, then the designation of additional images indicates the numbers of sheets or designations of the zones on which these images are placed (Fig. . 4).


Heck. 4

In these cases, above additional images, their designations indicate the numbers of sheets or designations of zones on which additional images are marked (Fig. 5).

GOST 2.316-2008

Group T52


INTERSTATE STANDARD

one system design documentation

RULES FOR APPLICATION OF LABELING, TECHNICAL REQUIREMENTS AND TABLES ON GRAPHIC DOCUMENTS

General provisions

Unified system for design documentation. Rules for placing the inscriptions, technical data and tables of graphical documents. general principles


ISS 01.080.30
OKSTU 0002

Introduction date 2009-07-01

Foreword

The goals, basic principles and basic procedure for carrying out work on interstate standardization are established by GOST 1.0-92 "Interstate standardization system. Basic provisions" and GOST 1.2-97 "Interstate standardization system. Interstate standards, rules and recommendations for interstate standardization. The procedure for developing, adopting, application, renewal and cancellation

About the standard

1 DEVELOPED by the Federal State unitary enterprise All-Russian Research Institute for Standardization and Certification in Mechanical Engineering (VNIINMASH), Autonomous non-profit organization Research Center for CALS Technologies "Applied Logistics" (ANO R&D Center for CALS Technologies "Applied Logistics")

2 INTRODUCED by the Federal Agency for Technical Regulation and Metrology

3 ADOPTED by the Interstate Council for Standardization, Metrology and Certification (minutes N 34 of October 7, 2008)

Voted to accept:

Short name of the country according to MK (ISO 3166) 004-97

Abbreviated name of the national standards body

Azerbaijan

Azstandard

Ministry of Trade and Economic Development

Belarus

State Standard of the Republic of Belarus

Kazakhstan

State Standard of the Republic of Kazakhstan

Kyrgyzstan

Kyrgyzstandart

Moldova-Standard

the Russian Federation

Federal Agency for Technical Regulation and Metrology

Tajikistan

Tajikstandart

Turkmenistan

Main State Service "Turkmenstandartlary"

Gospotrebstandart of Ukraine

4 By order of the Federal Agency for Technical Regulation and Metrology of December 25, 2008 N 702-st, the interstate standard GOST 2.316-2008 was put into effect as a national standard Russian Federation from July 1, 2009

5 INSTEAD OF GOST 2.316-68


Information on the entry into force (termination) of this standard is published in the index "National Standards".

Information about changes to this standard is published in the "National Standards" index, and the text of the changes is published in the "National Standards" information indexes. In case of revision or cancellation of this standard, the relevant information will be published in the information index "National Standards"



AMENDED, published in IUS N 2, 2012

Amended by database manufacturer

1 area of ​​use

1 area of ​​use

This standard establishes the rules for applying inscriptions, technical requirements and tables in graphic documents to products of all industries.

Based on this standard, it is allowed, if necessary, to develop standards that reflect the features of applying inscriptions, technical requirements and tables on graphic documents of specific types of equipment, taking into account their specifics.

2 Normative references

This standard uses references to the following interstate standards:

GOST 2.051-2006 Unified system for design documentation. Electronic Documents. General provisions

GOST 2.052-2006 Unified system for design documentation. Electronic product model. General provisions

GOST 2.104-2006 Unified system for design documentation. Basic inscriptions

GOST 2.105-95 Unified system for design documentation. General requirements to text documents

GOST 2.109-73 Unified system for design documentation. Basic requirements for drawings

GOST 21474-75 Straight and mesh corrugations. Shape and main dimensions

Note - When using this standard, it is advisable to check the validity of reference standards according to the "National Standards" index, compiled as of January 1 of the current year, and according to the corresponding information indexes published in the current year. If the reference standard is replaced (modified), then when using this standard, you should be guided by the replacing (modified) standard. If the referenced standard is canceled without replacement, the provision in which the reference to it is given applies to the extent that this reference is not affected.

3 Terms and definitions

In this standard, the following terms are used with their respective definitions:

4 General provisions

4.1 A graphic document, in addition to an image of a product with dimensions, maximum deviations and other parameters, may contain:

- a text part consisting of technical requirements and (or) technical characteristics;

- inscriptions with the designation of images, as well as those related to individual elements of the product;

- tables with dimensions and other parameters, technical requirements, control complexes, symbols, etc.

In electronic models, the text part (including tables) is recommended to be drawn up as separate documents.

4.2 The main inscription in graphic documents is performed in accordance with the requirements of GOST 2.104, GOST 2.109, GOST 2.051 and GOST 2.052.

4.3 The text part, inscriptions and tables are included in graphic documents in cases where the data contained in them, instructions and explanations cannot or is not expedient to be expressed graphically or by symbols.

4.5 Text, tables, inscriptions with the designation of images, as well as inscriptions directly related to the image, as a rule, are placed parallel to the main inscription of the drawing. If necessary, the placement of inscriptions in the model space of the electronic model is performed in accordance with GOST 2.052.

4.6 Near the images on the shelves of leader lines, only brief inscriptions are applied that are directly related to the image of the product, for example, indications of the number of structural elements (holes, grooves, etc.), if they are not included in the table, as well as indications of the front side, direction rolled products, fibers, etc.

4.7 The leader line that intersects the contour of the image and is not diverted from any line ends with a dot (see Figure 1a, b).

The leader line drawn from the lines of the visible and invisible contour, as well as from the lines denoting surfaces, ends with an arrow (see Figure 1b, c).

At the end of the leader line drawn from all other lines, there should be neither an arrow nor a dot (see Figure 1d).

Picture 1

4.8 Leader lines should not intersect with each other, should not be parallel to the hatch lines (if the leader line runs along the hatched field) and should not intersect, if possible, dimension lines and image elements that do not include the inscription placed on the shelf.

It is allowed to make leader lines with breaks (see Figure 2), as well as to draw two or more leader lines from one shelf (see Figure 3a), while the perception (clarity) of the image should not be disturbed.

Figure 2

4.9 When performing a leader line with one shelf, inscriptions related directly to the image may contain no more than two lines located above and below the leader line shelf.

It is allowed to carry out leader lines with several shelves (see Figure 3b). In this case, the inscriptions may contain lines located above the leader line shelves.

Figure 3


It is allowed, if it is necessary to place a large volume of inscriptions, to carry out leader lines with a frame (see Figure 3c). In this case, the inscriptions may contain lines located in a frame without line separators.

4.10 The text part is placed above the main inscription and is performed in accordance with GOST 2.105.

It is not allowed to place images, tables, etc. between the text part and the main inscription.

On sheets larger than A4, it is allowed to place text in two or more columns. The width of the column should be no more than 185 mm.

In the graphic (model) space, leave room for the continuation of the table of changes.

In electronic models, if necessary, the text part is allowed to be performed in the model space, taking into account the requirements of GOST 2.052. In this case, the text part is recommended to be performed at a separate information level.

4.11 In graphic documents for products for which a table of parameters has been established by the standard (for example, gears, a worm, etc.), it is performed according to the rules established by GOST 2.105 and other standards. All other tables are placed in the free space to the right of the image or below it and are performed in accordance with GOST 2.105.

If necessary, the parameter table and other tables can be executed in the workspace of the electronic model, taking into account the requirements of GOST 2.052. In this case, it is recommended to perform them at a separate information level.

4.12 The technical requirements are stated by grouping together requirements that are homogeneous and similar in nature, if possible in the following sequence:

- requirements for the material, workpiece, heat treatment and material properties of the finished part (electrical, magnetic, dielectric, hardness, humidity, hygroscopicity, etc.), indications of substitute materials;

- dimensions, maximum deviations of dimensions, shape and relative position of surfaces, masses, etc.;

- requirements for the quality of surfaces, instructions on their finishing, coating;

- gaps, location of individual structural elements;

Requirements for setting up and regulating the product;

- other requirements for the quality of products, for example: noiselessness, vibration resistance, self-braking, etc.;

- conditions and test methods;

- instructions on marking and branding;

- rules of transportation and storage;

- special operating conditions;

- references to other documents containing technical requirements that apply to this product, but not shown in the drawing.

4.13 Clauses of technical requirements must have continuous numbering. Each item of technical requirements is written on a new line.

4.14 The heading "Technical requirements" is not written.

4.15 If it is necessary to indicate the technical characteristics of the product, it is placed separately from the technical requirements, with independent numbering of paragraphs, in the free field of the drawing under the heading "Technical characteristics". At the same time, the heading "Technical requirements" is placed above the technical requirements. Both headings are underlined.

4.16 When a graphic document is executed on two or more sheets, the text part is placed only on the first sheet, regardless of which sheets contain images that include the instructions given in the text part.

Inscriptions related to individual elements of the product and applied to the shelves of leader lines are placed on those drawing sheets on which they are most necessary for ease of reading the drawing.

4.17 To designate images (views, sections, sections), surfaces, sizes and other elements of the product, capital letters of the Russian alphabet are used, with the exception of the letters Ё, З, Й, О, Ch, X, Ъ, Ы, Ь, and, if necessary , letters of the Latin alphabet, excluding the letters I and O.

Letter designations are assigned in alphabetical order without repetition and, as a rule, without gaps, regardless of the number of drawing sheets. It is preferable to designate images first.

In case of a lack of letters, digital indexing is used, for example: "A"; "BUT"; "BUT"; "B-B"; "B-B"; "B-B".

The letters are not underlined.

4.18 The font size of the letter designations should be approximately twice the size of the digits of the dimensional numbers used in the same graphic document.

4.19 The scale of the image, which differs from that indicated in the main inscription, is indicated immediately after the inscription related to the image, for example:

A-A (1:1); B (5:1); A (2:1).

If in a graphic document it is difficult to find additional images (sections, cuts, additional views, remote elements) due to their high saturation or the execution of a graphic document on two or more sheets, then the designation of additional images indicates the numbers of sheets or designations of zones on which these images are placed (See Figure 4).

Figure 4


In these cases, above additional images, their designations indicate the numbers of sheets or designations of zones on which additional images are marked (see Figure 5).

Figure 5

Annex A (informative). List of allowed word abbreviations used in graphic documents

Annex A
(reference)


Table A.1

Full name

Reduction

Without drawing

Leading

Upper deviation

upper off

Instead

Interior

Main

Depth

Detail

Document

Duplicate

blank

countersink, countersink

Notice

Change

Inventory

Engineer

Tool

Execution

Accuracy class)

Quantity

Conical

Constructor

Design department

Design department

Taper

taper

taper

Laboratory

Litera

Metal

Metallurgist

Metrological control

Meter. counter.*

Mechanic

largest

Least

Outer

Boss

Norm control

Lower Deviation

lower off

Nominal

Provide

Processing, processing

Hole

Center hole

resp. Centre.

Relatively

Deviation

Primary applicability

perv. application*

Plane

Surface

Script

Signature

Position

purchase, purchase

In order

Right

Limit deviation

prev. off

Customer representation

Appendix

Note

checked

Items

Developed

Calculated

registration, registration

Supervisor

assembly unit

Assembly drawing

cross section

Look

Special

Specification

Reference

standard, standard

Older

Page

table

Hardness

Theoretical

Technical requirements

Specifications

Technical task

Technologist

Technological control

T. contr.*

high frequency current

Thickness

Accuracy, accurate

Approved

Nominal pressure

conv. pressure

Conditional pass

conv. proh.

Chemical

cementation, cementing

Center of mass

Cylindrical

Drawing

Roughness

pieces (pieces)

instance

Note - Abbreviations marked with "*" are used only in the title block.

(Amendment. IUS N 2-2012).



Electronic text of the document
prepared by Kodeks JSC and verified against:
official publication
M.: Standartinform, 2009

Revision of the document, taking into account
changes and additions prepared
JSC "Kodeks"