GB/T 11270.1-2021 English PDF

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GB/T 11270.1-2021: Super abrasive products - Diamond circular saw blade - Part 1: Welded saw blades
Status: Valid

GB/T 11270.1: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 11270.1-2021	409	Add to Cart	4 days	Super abrasive products - Diamond circular saw blade - Part 1: Welded saw blades	Valid
GB/T 11270.1-2002	639	Add to Cart	3 days	Abrasive products -- Diamond circular saw blade -- Part 1: Welded saw blades	Obsolete
GB/T 11270-1989	559	Add to Cart	4 days	Diamond circular saw blades	Obsolete

Similar standards

GB/T 2493   GB/T 2480   GB/T 23541   GB/T 17588   GB/T 44687   GB/T 11270.2   

Basic data

Standard ID: GB/T 11270.1-2021 (GB/T11270.1-2021)
Description (Translated English): Super abrasive products - Diamond circular saw blade - Part 1: Welded saw blades
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: J43
Word Count Estimation: 22,298
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 11270.1-2021: Super abrasive products - Diamond circular saw blade - Part 1: Welded saw blades

---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.
Superabrasive products-Diamond circular saw blade-Part 1.Welded saw blades ICS 25.100.70 CCSJ43 National Standards of People's Republic of China Replace GB/T 11270.1-2002 Diamond circular saw blades for super-abrasive products Part 1.Welding the saw blade Released on 2021-05-21 2021-12-01 implementation State Administration of Market Supervision and Administration Issued by the National Standardization Management Committee

Table of contents

Foreword Ⅰ Introduction Ⅲ 1 Scope 1 2 Normative references 1 3 Terms and definitions 1 4 Code and marking 1 4.1 Shape code 1 4.2 Size code 6 4.3 Abrasive particle size number 7 4.4 Concentration code 7 4.5 Bond code 8 4.6 Welding procedure code 8 4.7 Use code 8 4.8 Product marking 8 5 Basic size of base body and serration 9 5.1 Base 9 5.2 Sawtooth 9 6 Technical requirements 9 6.1 General requirements 9 6.2 Appearance 10 6.3 Limit deviation of basic size of sawtooth 10 6.4 Shape and position tolerance 10 6.5 Safety requirements 11 7 Test method 13 7.1 General requirements 13 7.2 Appearance 13 7.3 Basic dimensions of sawtooth 13 7.4 Geometric tolerance 13 7.5 Safety requirements 13 8 Inspection rules 14 9 sign 14 10 Packaging, transportation and storage 14 10.1 Packaging 14 10.2 Transportation 14 10.3 Storage 14 Appendix A (Normative) Technical Requirements for Welding Diamond Circular Saw Blade Base 15

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1.Structure and Drafting Rules of Standardization Documents" Drafting. This document is the first part of GB/T 11270 "Diamond Circular Saw Blade for Super Abrasive Products". GB/T 11270 has been released to the next part. ---Part 1.Welding saw blades; ---Part 2.Sintered saw blade. This document replaces GB/T 11270.1-2002 "Superhard Abrasive Products Diamond Circular Saw Blade Part 1.Welded Saw Blade", and Compared with GB/T 11270.1-2002, in addition to structural adjustments and editorial changes, the main technical changes are as follows. a) The code for the shape of the sawtooth section and the code for the modification of the matrix have been changed (see 4.1.1, 4.1.3, 3.5.1, 3.5.2 of the.2012 edition); b) The code of the serrated surface shape has been added (see 4.1.2); c) The shape code of the saw blade is changed (see 4.1.4, 3.5.3 of the.2002 edition) d) Abrasive code is deleted (see 3.1 in.2002 edition); e) Changed the abrasive particle size number (see 4.3, 3.2 in the.2002 edition); f) The concentration code is changed (see 4.4, 3.3 in the.2002 edition); g) The code of the welding process has been added (see 4.6); h) Changed the use code (see 4.7, 4.1 in the.2002 edition); i) Changed the product mark (see 4.8, 3.7 of the.2002 edition); j) The basic dimensions and technical requirements of the substrate have been changed (see 5.1, 6.1.2, Appendix A, 4.2, 5.2, and Appendix A of the.2002 edition); k) The basic size of the saw tooth and its limit deviation have been changed (see 5.2, 6.3, 4.2 in the.2002 edition); l) The quality requirements for natural diamonds have been deleted (see 5.1.3 of the.2002 edition); m) The appearance requirements are changed (see 6.2, 5.1.1, 5.3.1 of the.2002 edition); n) Changed the geometric tolerances (see 6.4, 5.3.2, 5.4 of the.2002 edition); o) Safety requirements such as the maximum working speed, the total depth of the saw tooth, and the tension have been added (see 6.5.1, 6.5.4, 6.5.5); p) The safety requirements for rotation strength and sawtooth bonding strength are changed (see 6.5.2, 6.5.3, 5.5 in the.2002 edition); q) Added the surface roughness test method (see 7.1.2.3); r) The flatness test method is changed (see 7.4.3, 6.6 in the.2002 edition); s) The test method of slewing strength is changed (see 7.5.1, 5.5 of the.2002 edition); t) The test method of sawtooth bond strength is changed (see 7.5.2, 5.5 of the.2002 edition); u) The test method for the total depth of the saw tooth has been added (see 7.5.3); v) Added tensile test method (see 7.5.4); w) The inspection rules have been changed (see Chapter 8, Chapter 7 of the.2002 edition); x) The labeling regulations have been changed (see Chapter 9, 8.1~8.3 of the.2002 edition); y) The packaging, transportation and storage regulations have been changed (see Chapter 10,.2002 edition of 8.4, 8.5). Please note that some of the contents of this document may involve patents. The issuing agency of this document is not responsible for identifying patents. This document was proposed by China Machinery Industry Federation. This document is under the jurisdiction of the National Abrasives Standardization Technical Committee (SAC/TC139). Drafting organizations of this document. Beijing Antai Iron and Steel Research Institute Superhard Material Products Co., Ltd., Zhengzhou Abrasives Grinding Research Institute Co., Ltd., Fujian Quanzhou Wanlong Stone Industry Co., Ltd., Guangdong Benlang New Material Co., Ltd., Guilin Tebang New Material Co., Ltd., Quanzhou Zhongzhixin Material Technology Co., Ltd., Heixuanfeng Saw Industry Co., Ltd. The main drafters of this document. Liu Yibo, Luo Xiaoli, Bao Hua, Xu Xiaowang, Peng Kai, Luo Wenlai, Huang Zijie, Zhang Yuncai, Yao Jiongbin, Zhang Liang. The previous versions of the documents replaced by this document are as follows. ---GB/T 11270-1989, GB/T 11270.1-2002.

Introduction

Diamond circular saw blades are currently divided into welded saw blades and sintered saw blades due to different manufacturing processes. These two types of products are in performance There is a big difference in technical requirements. In order to scientifically and reasonably standardize and coordinate the technical content of diamond circular saw blades, GB/T 11270 "Super Hard Abrasive Products Diamond Circular Saw Blade" is planned to consist of the following two parts. ---Part 1.Welding saw blades; ---Part 2.Sintered saw blade. Diamond circular saw blades for super-abrasive products Part 1.Welding the saw blade

1 Scope

This document specifies the codes and markings of the welded diamond circular saw blades, the basic dimensions of the substrate and the teeth, technical requirements, test methods, and inspection gauges. Rules, signs, packaging, transportation and storage. This document is applicable to welded diamond circular saws for cutting stone, concrete, refractory materials, asphalt, carbon, ceramics, glass and other materials. Blade (hereinafter referred to as saw blade).

2 Normative references

The contents of the following documents constitute the indispensable clauses of this document through normative references in the text. Among them, dated quotations Only the version corresponding to that date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to This document. GB/T 2493 Rotation test method of grinding wheel GB/T 6406 Super-hard abrasive particle size inspection GB/T 11270.2 Diamond circular saw blades for superabrasive products-Part 2.Sintered saw blades GB/T 16457 (all parts) Superhard material saw blade base size GB/T 24181 Diamond welded saw blade base steel Overview and marking of GB/T 35479 super-hard abrasive products diamond or cubic boron nitride abrasive shapes JB/T 7989 Superabrasive synthetic diamond technical conditions

3 Terms and definitions

There are no terms and definitions that need to be defined in this document.

4 Code and marking

4.1 Shape code 4.1.1 Shape code of sawtooth section See Table 1 for the shape and code of the sawtooth section. ......

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