GB/T 23538-2023 English PDF

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GB/T 23538-2023: Conventional abrasive - Determination method of ball milling toughness index
Status: Valid

GB/T 23538: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 23538-2023	169	Add to Cart	3 days	Conventional abrasive - Determination method of ball milling toughness index	Valid
GB/T 23538-2009	319	Add to Cart	3 days	Conventional abrasive -- Testing method for toughness (Ball mill method)	Obsolete

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GB/T 2493   GB/T 2480   GB/T 23541   GB/T 23536   GB/T 23537   

Basic data

Standard ID: GB/T 23538-2023 (GB/T23538-2023)
Description (Translated English): Specification for supervision data acquisition of futures companies - Part 1: General information and brokerage
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: A11
Classification of International Standard: 03.060
Word Count Estimation: 39,392
Date of Issue: 2023-07-28
Date of Implementation: 2023-07-28
Issuing agency(ies): People's Bank of China
Summary: This standard stipulates the basic information of futures companies, the scope of regulatory data collection related to brokerage business, and the business caliber of data elements. This document is applicable to the collection and application of regulatory data with futures companies as the main body.

GB/T 23538-2023: Conventional abrasive - Determination method of ball milling toughness index

---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.
ICS 25:100:70 CCSJ43 National Standards of People's Republic of China Replace GB/T 23538-2009 Determination method for ball milling toughness of common abrasives Published on 2023-11-27 2024-06-01 Implementation State Administration for Market Regulation Released by the National Standardization Administration Committee

Foreword

This document complies with the provisions of GB/T 1:1-2020 "Standardization Work Guidelines Part 1: Structure and Drafting Rules of Standardization Documents" Drafting: This document replaces GB/T 23538-2009 "Method for determination of toughness of ordinary abrasive ball milling": Compared with GB/T 23538-2009, except In addition to structural adjustments and editorial changes, the main technical changes are as follows: a) Changed the definition of ball milling toughness (see 3:1,:2009 version of 3:1); b) Changed the technical requirements for the rotary drive device of the ball mill toughness tester (see 4:1:2, 4:1:3 of the:2009 edition); c) Changed the technical conditions of steel balls (see 4:1:4,:2009 version of 4:1:4); d) The sample preparation method has been changed (see Chapter 5, 5:1 of the:2009 edition); e) The test procedures have been changed (see Chapter 6, 5:2 and 5:3 of the:2009 edition); f) Deleted the reference accuracy (Chapter 6 of the:2009 edition); g) Added requirements for test reports (see Chapter 8); h) The adjustment method of the ball mill toughness tester has been changed (see Appendix A, Appendix A of the:2009 version): Please note that some content in this document may be subject to patents: The publisher of this document assumes no responsibility for identifying patents: This document is proposed by China Machinery Industry Federation: This document is under the jurisdiction of the National Abrasives and Abrasives Standardization Technical Committee (SAC/TC139): This document was drafted by: Zhengzhou Abrasives and Grinding Research Institute Co:, Ltd:, China Machinery Industry International Cooperation Co:, Ltd:, Guizhou Dazhong Seventh Grinding Wheel Co:, Ltd:, Shanxi Taiyue Abrasives Co:, Ltd:, Nanping Yize Abrasives Technology Co:, Ltd:, Xinzheng Baode High-Tech Technology Co:, Ltd:, Henan Ant New Materials Co:, Ltd: The main drafters of this document: Peng Zhenyu, Yu Jiayin, Xia Xuefeng, Cheng Suhua, Pang Aoshuang, Zhang Liang, Li Na, Song Xinyuan, Wu Jianwei, Gao Zenglu, Zhao Zhengang, Wang Jinping: This document was first published in:2009 and this is the first revision: Determination method for ball milling toughness of common abrasives

1 Scope

This document describes methods for determining the ball grinding toughness of common abrasives such as corundum and silicon carbide: This document is applicable to the determination of ball grinding toughness of ordinary abrasives with particle sizes of F8~F150:

2 Normative reference documents

The contents of the following documents constitute essential provisions of this document through normative references in the text: Among them, the dated quotations For undated referenced documents, only the version corresponding to that date applies to this document; for undated referenced documents, the latest version (including all amendments) applies to this document: GB/T 308:1 Rolling bearing balls Part 1: Steel balls GB/T 2481:1 Detection and marking of abrasive grain size composition for bonded abrasive tools Part 1: Coarse abrasive grains F4~F220 GB/T 4676 Ordinary abrasive sampling method

3 Terms and definitions

The following terms and definitions apply to this document: 3:1 The ability of the abrasive to resist ball mill breakage: Note: The value is expressed by multiplying the ratio of the mass of the material on the sieve to the recovered mass of the sample by 100 after the sample is ball milled and sieved under specified conditions:

4 Instruments and Equipment

4:1 Ball mill toughness tester 4:1:1 Composition of ball mill toughness tester The ball mill toughness tester consists of a rotary drive device, a ball mill tank and steel balls: 4:1:2 Rotary drive device The following technical requirements should be met: ---Rotation speed: (75±1)r/min; ---The number of rotations is continuously adjustable within (0~9999) times, and the error is no more than 2 times: 4:1:3 Ball mill tank The following technical requirements should be met: ---Ball mill tank cavity size: ϕ165mm×190mm; ---Ball mill tank volume: about 4000cm3; ......

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