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GB/T 12212-2012 English PDF

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GB/T 12212-2012: Technical drawings -- Dimensions, proportions and simplified representation for welding symbols
Status: Valid

GB/T 12212: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
GB/T 12212-2012English649 Add to Cart 5 days [Need to translate] Technical drawings -- Dimensions, proportions and simplified representation for welding symbols Valid GB/T 12212-2012
GB/T 12212-1990EnglishRFQ ASK 6 days [Need to translate] Technical drawings--Dimensions, proportions and simplified representation for welding symbols Obsolete GB/T 12212-1990

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Basic data

Standard ID GB/T 12212-2012 (GB/T12212-2012)
Description (Translated English) Technical drawings -- Dimensions, proportions and simplified representation for welding symbols
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard J04
Classification of International Standard 01.100
Word Count Estimation 28,268
Older Standard (superseded by this standard) GB/T 12212-1990
Quoted Standard GB/T 324; GB/T 4458.1; GB/T 4458.3; GB/T 4458.6; GB/T 4457.4; GB/T 14691; GB/T 16901.1
Regulation (derived from) National Standards Bulletin No. 9 of 2012
Issuing agency(ies) General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary This standard specifies the general requirements for painting welds and weld symbol size, proportions and simplified representation. This standard applies to technical drawings and related technical documentation.

GB/T 12212-2012: Technical drawings -- Dimensions, proportions and simplified representation for welding symbols


---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Technical drawings. Dimensions, proportions and simplified representation for welding symbols ICS 01.100 J04 National Standards of People's Republic of China Replacing GB/T 12212-1990 Technical drawings Weld symbol size, proportions and simplified representation Dimensions, proportionsandsimplifiedrepresentationforweldingsymbols Issued on. 2012-05-11 2012-12-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

This standard was drafted in accordance with GB/T 1.1-2009 given rules. This standard replaces GB/T 12212-1990 "welding symbols Technical drawings - Dimensions, proportions and simplified representation." This standard and GB/T 12212-1990, compared the main technical changes are as follows. --- Increasing the foreword; --- Revised 4.1 titled "Overview"; the content was changed to "when drawing a weld, the available views, or cross-sectional view showing a sectional view, can also be used Isometric view schematically showing "; --- Revised 4.2.1 "freehand" to "schematic drawing", "thick line" to "bold line", "b" to "d"; --- Revised 4.3 "sectional view" to "sectional view"; --- 5.1.3 amended to "in any pattern, the line width of welding symbols, welding symbols font glyphs, character height and font width strokes Degree should linewidth and pattern of other symbols (such as the size of the symbols, surface texture symbols, geometric tolerance symbols), fonts, font, character height Stroke width and the same "; --- 5.1.4 modified to "weld symbol baseline consists of two mutually parallel thin solid line and thin dotted lines, reference lines are generally in FIG. Long sample of the title bar parallel sides; if necessary, can also be perpendicular to the long side of the phase pattern of the title bar. 11. Weld symbol refers Wire drawing by solid lines "; 11 --- modified text "arrow line" for the "Leader", "(broken line)" to "(thin broken line)"; Table 1 --- modified text "outline width" is "visible outline width"; --- Increasing the basic symbols in Table 2 Size and Scale (No. 14 to 20); --- Combined the original standard in Tables 3 and 4; --- Table 3 supplement increased size and scale of symbols (numbers 4-6); --- Remove the dimensions and proportions of the original standard table No. 41 of supplementary symbols. This standard by the National Technical product documentation Standardization Technical Committee (SAC/TC146) and focal points. This standard was drafted. the machine Productivity Promotion Center, Bolton (Hefei) Co., Ltd. Drive, Anhui Ankai Automobile Parts China (Hefei) Ltd. Shaanxi Province Product Quality Supervision, Inspection, Anhui Institute of Standardization, Dalian Maritime University. The main drafters of this standard. thanks to Yang, Xue Ming, Yang Yikui, King of War, Ding Changdong, Zouyu Tang, Han Zhenyu, Liu Caiyun. The standard replaces the previous editions are. --- GB/T 12212-1990. Technical drawings Weld symbol size, proportions and simplified representation

1 Scope

This standard specifies the general requirements for the weld and weld symbols of painting Dimensions, proportions and simplified representation. This standard applies to technical drawings and related technical documentation.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document. GB/T 324 Weld notation GB/T 4458.1 Mechanical drawings - General view GB/T 4458.3 Mechanical Drawing isometric drawing GB/T 4458.6 Mechanical sectional drawings - view and a sectional view GB/T 4457.4 Mechanical drawings Fatou line GB/T 14691 Technical Drawing Font GB/T 16901.1 technical documents represent the first part of the rule of graphical symbols. Basic rules

3 Basic requirements

In technical drawings, usually by welding symbols GB/T 324 provisions represent weld. Can also be GB/T 4458.1, GB/T 4458.3 And the provisions of GB/T 4458.6 representation weld.

4 illustrates a method

4.1 Overview When drawing welds, available views, or cross-sectional view showing a sectional view, can also be used isometric view schematically showing. 4.2 Views As shown in Figure 4.2.1 Weld painting. 1 and 2, showing a series of weld thin solid line allow schematically drawn, also allow the use of bold line (2d ~ 3d) shows the weld, as shown in Figure 3. But at the same pattern, only permits a painting. Spot welds, seam welds, plug welds and weld groove In the longitudinal direction or radial view painting in Table 2.

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