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QC/T 869-2022: Short-cycle drawn arc welding stud Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure Status: Valid QC/T 869: Historical versions
QC/T 869-2022: Short-cycle drawn arc welding stud---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/QCT869-2022QC AUTOMOBILE INDUSTRY STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 43.040 CCS T 31 Replacing QC/T 869-2011 Short-cycle drawn arc welding stud 短周期弧焊焊接螺栓 ISSUED ON: APRIL 08, 2022 IMPLEMENTED ON: OCTOBER 01, 2022 Issued by: Ministry of Industry and Information Technology of PRC Table of ContentsForeword ... 6 1 Scope ... 7 2 Normative references ... 7 3 Terms and definitions ... 8 4 Types and sizes ... 8 5 Product number ... 9ForewordThis document was in accordance with the requirements of GB/T 1.1-2020 "Directives for standardization - Part 1: Rules for the structure and drafting of standardizing documents". This document replaces QC/T 869-2011 "Short-cycle drawn arc welding stud". Compared with QC/T 869-2011, except for editorial modifications, the main changes are as follows: - CHANGE the limit deviation of "l" in the dimension, from the original tolerance to "js15" (see table 1); - CHANGE the limit deviation value of dk; MAINTAIN maximum tolerance; the deviation value is h14 (see Table 1); - CHANGE product grade of "Tolerance" in the specification, from "B" to "A" (see Table 2). This document was proposed by AND shall be under the jurisdiction of the National Automotive Standardization Technical Committee (SAC/TC 114). Drafting organizations of this document: Shanghai Dongfeng Motor Special Parts Co., Ltd., China FAW Group Co., Ltd. Research and Development Institute, Shanghai Automotive Passenger Vehicle Corporation. The main drafters of this document: Xiong Yaping, Yang Chaoyang, Zhang Qiongmin. This standard replaces the standard previously issued as follows: - It was first published as QC/T 869-2011 in 2011; - This is the first revision. Short-cycle drawn arc welding stud1 ScopeThis document specifies the type, size, technical conditions of short-cycle drawn arc welding stud. This document is applicable to short-cycle drawn arc welding studs for automobiles, which have thread specifications of M3 ~ M10 and mechanical performance grades of 4.8 and 8.8.2 Normative referencesThe contents of the following documents constitute the essential provisions of this document through normative references in the text. Among them, for dated references, only the version corresponding to the date is applicable to this document; for undated references, the latest version (including all amendments) is applicable to this document. GB/T 2 Fasteners - Ends of parts with external thread GB/T 90.1-2002 Fasteners - Acceptance inspection GB/T 90.2-2002 Fasteners - Marking and packaging GB/T 196 General purpose screw threads-Basic dimensions for diameter from 1 to 600mm GB/T 197 Common thread - Tolerances GB/T 3098.1-2010 Mechanical properties of fasteners - Bolts, screws and studs GB/T 3103.1-2002 Essential oils and aromatic extracts - Determination of residual benzene content GB/T 5779.1-2000 Fasteners - Surface discontinuities - Bolts, screws and studs for general requirements GB/T 30512 Requirements for prohibited substances on automobiles QC/T 326 Coding rules for automotive standardized parts QC/T 625 Metallic coatings and conversion coatings for automobiles ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al. |
