GB/T 2493-2023 (GB/T2493-2023, GBT 2493-2023, GBT2493-2023)
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 2493-2023 | English | 329 |
Add to Cart
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4 days [Need to translate]
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Test method for rotating strength of abrasive products
| Valid |
GB/T 2493-2023
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| GB/T 2493-2013 | English | 150 |
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0--9 seconds. Auto-delivery
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Rotation test of grinding wheel strength
| Valid |
GB/T 2493-2013
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| GB/T 2493-1995 | English | 95 |
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0--9 seconds. Auto-delivery
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Rotation test of grinding wheel strength
| Obsolete |
GB/T 2493-1995
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| GB 2493-1984 | English | RFQ |
ASK
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3 days [Need to translate]
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Methods for determination of revolving strength of grinding wheels
| Obsolete |
GB 2493-1984
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Standards related to: GB/T 2493-2023
| Standard ID | GB/T 2493-2023 (GB/T2493-2023) | | Description (Translated English) | Test method for rotating strength of abrasive products | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | J43 | | Classification of International Standard | 25.100.70 | | Word Count Estimation | 16,166 | | Date of Issue | 2023-11-27 | | Date of Implementation | 2024-06-01 | | Older Standard (superseded by this standard) | GB/T 2493-2013 | | Drafting Organization | Zhengzhou Abrasives and Grinding Tools Grinding Research Institute Co., Ltd., Baige Abrasives and Grinding Tools Co., Ltd., Suzhou Far East Grinding Wheel Co., Ltd., Beijing Antai Steel Research Superhard Material Products Co., Ltd., Yangquan Zhongjia Abrasives and Grinding Tools Co., Ltd., Zhengzhou Anxin Grinding Technology Co., Ltd | | Administrative Organization | National Abrasives and Abrasives Standardization Technical Committee (SAC/TC 139) | | Proposing organization | China Machinery Industry Federation | | Issuing agency(ies) | State Administration for Market Regulation, National Standardization Administration |
GB/T 2493-2023: Test method for grinding tool rotational strength
ICS 25:100:70
CCSJ43
National Standards of People's Republic of China
Replace GB/T 2493-2013
Grinding tool rotational strength test method
Published on 2023-11-27
2024-06-01 Implementation
State Administration for Market Regulation
Released by the National Standardization Administration Committee
Preface
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 2493-2013 "Grinding wheel rotation test method": Compared with GB/T 2493-2013, except for structural adjustments and
In addition to editorial changes, the main technical changes are as follows:
a) Changed the scope of application (see Chapter 1, Chapter 1 of the:2013 edition);
b) Added the requirement that the rotation testing machine should increase evenly (see 4:1:2);
c) The relative error range of the spindle speed of the rotary testing machine has been changed (see 4:1:3, 3:2 of the:2013 version);
d) The requirements for radial circular runout of the spindle of the rotary testing machine have been changed (see 4:1:4, 3:3 of the:2013 edition);
e) Added requirements for recording or displaying the spindle speed of the rotary testing machine (see 4:1:6);
f) The tensile strength requirements for chuck and spacer materials and bushing materials have been changed (see 4:2:1, 5:2, 4:4 and 5:3 of the:2013 edition);
g) The regulations for installation and clamping of grinding tool rotation test have been changed (see 5:1, 5:2 of the:2013 edition);
h) Added installation and clamping regulations for special installation methods of grinding tool rotation test (see 5:4);
i) Changed the setting method of rotation test parameters (see 6:1, 5:1 and 6:1 of the:2013 edition);
j) Added the step of idling in the rotation test (see 6:2);
k) Added the method to deal with the breakage of the grinding tool during the rotation test (see 6:6);
l) Added requirements for test reports (see Chapter 7):
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 Tools Grinding Research Institute Co:, Ltd:, Baige Abrasives and Grinding Tools Co:, Ltd:, Suzhou Far East Grinding Wheel Co:, Ltd:
Company, Beijing Antai Gangyan Superhard Material Products Co:, Ltd:, Yangquan Zhongjia Abrasives Co:, Ltd:, Zhengzhou Anxin Grinding Technology Co:, Ltd:
Ltd:
The main drafters of this document: Lu Shenfeng, Bao Hua, Chen Deguang, Si Wenyuan, Liu Yibo, Xu Bangping, Fan Yian, Zhang Liang, Xing Bo, Zhang Huifang, Qi
Shoubao, Luo Xiaoli:
The previous versions of the documents replaced by this document are as follows:
---First published as GB 2493-1981 in 1981, revised for the first time in 1984, revised for the second time in:1995, and revised for the third time in:2013
revision;
---This is the fourth revision:
Grinding tool rotational strength test method
Warning: It is strictly prohibited to open the protective cover while the rotary testing machine is rotating:
1 Scope
This document specifies the test equipment, test requirements, test methods and test reports for the rotational strength inspection of grinding tools:
This document is applicable to the inspection of the rotational strength of bonded abrasives, coated abrasives and superabrasive products:
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 2494 Safety requirements for bonded abrasive tools
GB/T 16458 Abrasives Terminology
GB/T 43134 Safety requirements for superabrasive products
GB/T 43323 General safety requirements for coated abrasive tools
3 Terms and definitions
The terms and definitions defined in GB/T 16458 apply to this document:
4 Test equipment
4:1 Rotary testing machine
4:1:1 The rotary testing machine should be selected according to the specifications, models and mounting methods of the abrasive tools:
4:1:2 The rotation testing machine should increase in speed evenly:
4:1:3 The relative error range of the spindle speed of the rotary testing machine is ±1:0%:
4:1:4 The radial circular runout of the spindle of the rotary testing machine for bonded abrasives and coated abrasives should not be greater than 0:03mm:
The radial circular runout of the main shaft of the testing machine should not be greater than 0:02mm: The measurement position is: one-half of the exposed effective part of the spindle (with chuck
The spindle is located 5mm~10mm away from the end face of the spindle after removing the chuck):
4:1:5 The rotary testing machine should be equipped with a timing control device to automatically start timing after the spindle speed reaches the set speed:
Keep the speed stable within a certain period of time, and automatically start to slow down at the end of the set time:
4:1:6 The rotary testing machine should be able to record or display the maximum rotational speed reached by the spindle during the rotation test or the rotational speed when the grinding tool breaks:
4:1:7 The noise sound pressure level of the rotary testing machine when no-load should not exceed 85dB(A):
4:1:8 The protective cover of the rotary testing machine should be strong to ensure that the rotary test can be carried out safely:
4:1:9 The rotary testing machine should be calibrated regularly, and the recalibration interval should not exceed one year: The rotary testing machine after repair should be recalibrated:
4:2 Chuck and partition for rotation test
4:2:1 The tensile strength of the chuck and partition materials should not be less than 415N/mm2 (45 steel is recommended):
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