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GB/T 33144-2016: [Including 2019XG1] Super-abrasive -- Test method of impact toughness index
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 33144-2016 | English | 278 |
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[Including 2019XG1] Super-abrasive -- Test method of impact toughness index
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GB/T 33144-2016
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Basic data | Standard ID | GB/T 33144-2016 (GB/T33144-2016) | | Description (Translated English) | [Including 2019XG1] Super-abrasive -- Test method of impact toughness index | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | J43 | | Classification of International Standard | 25.100.70 | | Word Count Estimation | 14,149 | | Date of Issue | 2016-10-13 | | Date of Implementation | 2017-05-01 | | Regulation (derived from) | National Standard Notice No.1716 of 2016 | | 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 | GB/T 33144-2016: [Including 2019XG1] Super-abrasive -- Test method of impact 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.
Superabrasive - Test method of impact toughness index
ICS 25.100.70
J43
National Standards of People's Republic of China
Determination of Impact Toughness of Superhard Abrasives
2016-10-13 released
2017-05-01 implementation
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
China National Standardization Management Committee released
Foreword
This standard is drafted in accordance with the rules given in GB/T 1.1-2009.
This standard is proposed by the China Machinery Industry Federation.
This standard is owned by the National Standard Committee on Abrasive Tools (SAC/TC139).
The drafting unit of this standard. Zhongnan Diamond Co., Ltd., China Ordnance Industry Standardization Research Institute, Zhengzhou Abrasive Grinding and Research Institute Limited
Company, Henan Yellow River Whirlwind Co., Ltd., Zhengzhou Huajing Diamond Co., Ltd., Beijing Institute of Technology, Fu Nike Superhard Materials Co., Ltd.
Limited company.
The main drafters of this standard. Zhang Fengling, Lu Canhua, Mai Lvbo, Bao Hua, Wang Yuchang, Shao Jingru, Tong Yi, Wu Jianzhong, Wang Zhitao, Zhang Kui.
Determination of Impact Toughness of Superhard Abrasives
1 Scope
This standard specifies the terms and definitions of impact toughness and thermal shock toughness of superhard abrasives, apparatus and equipment, test conditions, sample preparation
Preparation and determination procedures.
This standard applies to the size of 20/25 ~ 325/400 of synthetic diamond and the particle size of 30/40 ~ 325/400 cubic boron nitride impact
Determination of toughness.
2 normative reference documents
The following documents are indispensable for the application of this document. For dated references, only the dated edition applies to this article
Pieces. For undated references, the latest edition (including all modifications) applies to this document.
GB/T 308.1 Rolling bearing balls - Part 1. Steel balls
GB/T 6406 superhard abrasive particle size test
JB/T 3914 superhard abrasive sampling method
3 terms and definitions
The following terms and definitions apply to this document.
3.1
Impact frequency
The number of impacts per unit time of the impact toughness tester is expressed by the number of revolutions per unit time of the drive wheel.
Note. The unit of impact frequency is r/min.
3.2
Impact times impactcounts
The number of times the specimen is subjected to the impact is expressed as the total number of revolutions of the drive wheel rotation of the impact toughness tester.
3.3
Not broken rate unbrokenratio
The sample according to a certain impact frequency, subject to a certain number of shocks, and according to the provisions of the conditions after screening, the quality of the sieve and the sample quality
The ratio is expressed as a percentage.
3.4
Impact toughness
TI
The impact resistance of the specimen. The value is expressed by multiplying the arithmetic mean of the unbroken rate of the sample by 100.
3.5
Thermal impact toughness thermalimpacttoughnessindex
TTI
After the conditions of high temperature treatment and cooling to room temperature, the impact resistance of the sample crushing performance. The value of the sample is not broken with the arithmetic
The average is multiplied by 100.
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