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GB/T 13313-2008: Methods of Shore and Leeb hardness testing for rolls
Status: Valid GB/T 13313: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 13313-2008 | English | 229 |
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3 days [Need to translate]
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Methods of Shore and Leeb hardness testing for rolls
| Valid |
GB/T 13313-2008
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| GB/T 13313-1991 | English | 479 |
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4 days [Need to translate]
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Method of Shore hardness testing for mill rolls
| Obsolete |
GB/T 13313-1991
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PDF similar to GB/T 13313-2008
Basic data | Standard ID | GB/T 13313-2008 (GB/T13313-2008) | | Description (Translated English) | Methods of Shore and Leeb hardness testing for rolls | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | H94 | | Classification of International Standard | 77.180 | | Word Count Estimation | 10,186 | | Date of Issue | 2008-09-11 | | Date of Implementation | 2009-05-01 | | Older Standard (superseded by this standard) | GB/T 13313-1991 | | Regulation (derived from) | National Standard Approval Announcement 2008 No.16 (Total No.129) | | Issuing agency(ies) |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 | | Summary | This standard specifies the roll Shore hardness and hardness Richter said, testing methods. The test instrument, measured roll, data processing, trials reporting requirements and hardness conversion tables. This standard applies to all types of forged steel, cast steel and cast iron roll Shore hardness and Leeb hardness measurement. | GB/T 13313-2008: Methods of Shore and Leeb hardness testing for rolls---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.
Methods of Shore and Leeb hardness testing for rolls
ICS 77.180
H94
National Standards of People's Republic of China
Replacing GB/T 13313-1991
Roll Shore, Leeb hardness test
Posted 2008-09-11
2009-05-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
This standard replaces GB/T 13313-1991 "roll Shore hardness test."
This standard GB/T 13313-1991 and main technical differences are as follows.
--- Name changed to "roll Shore, Leeb hardness test methods";
--- Normative references made additional adjusted;
--- Added Leeb hardness representation, test methods, and test equipment, test rolls, the data processing requirements of the test report;
--- Increased the hardness, the hardness of the block requires the detection of high smoothing roll;
--- Clear hardness, according to the hardness test blocks;
--- Tested improved the hardness of the surface roughness of the roll test requirements;
--- Consider the cold, the impact of thermal processing on the sample surface hardness;
--- Increased its test site environmental requirements;
--- Barrel diameter of 300mm or less roll, roll body determined to test bus number 2; the barrel diameter greater than 300mm, less than
Equal to 500mm rolls, an increase of a barrel test bus;
--- For the distribution of the test bus made provisions;
--- Adds forged steel, cast iron, cast steel rolls HSD-HLD hardness table;
--- Hardness of no more than everyday use than the pair of rollers, to standard hardness block;
--- Deleted the original standard in Appendix A "C type Shore hardness tester main technical parameters," Appendix B "E-type Shore hardness tester main technical parameters
Number ", Appendix C" than the roll main technical parameters ";
--- Deleted the original standard Appendix D "hardness conversion table" in the HRA and its data, and Brinell hardness HBW Vickers hardness HV
Data made further changes and additions.
The Standard Appendix A, Appendix B are informative appendices.
The standard proposed by China Iron and Steel Association.
The standard rule of the Central Group of Beijing Metallurgical Equipment Research and Design Institute under the jurisdiction.
This standard was drafted. Sinosteel Xingtai Machinery & Mill Roll Co., Ltd., China Metallurgical Group of Beijing Metallurgical Equipment Research and Design Institute, China test
Test Technology Research Institute.
Drafters of this standard. Jin Yuan Hao, Zhao Baolin, Lin Ju Cai, Yang Jingang, Zhang Yunbo.
This standard was first released in December 1991.
Roll Shore, Leeb hardness test
1 Scope
This standard specifies the roll Shore hardness Leeb hardness and representation, test methods, test equipment, test rolls, data processing, test
Reporting requirements and hardness conversion tables.
This standard applies to all types of forged steel, cast steel and cast iron roll and a Shore hardness Leeb hardness measurement.
2 Normative references
The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent
Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research
Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard.
GB/T 1172-1999 ferrous metal hardness and strength conversion value
GB/T 4341 metal Shore hardness test
GB/T 8170 numerical rounding rules
GB/T 17394-1998 Metal Leeb hardness test
JJG346 Shore hardness tester
JJG347 standard Shore hardness block
JJG747 Leeb hardness tester
3 Test principle
3.1 Shore hardness test principle
Calculate the ratio Shore hardness values. The formula of formula (1) below.
(1)
Where.
HS --- Shore hardness;
K --- Shore hardness factor.
3.2 Principle Leeb hardness test
A predetermined quality impact body under the force of the impact surface of the sample at a constant speed, punch in the rebound from the surface speed at 1mm
The ratio of the impact velocity is calculated hardness values. The formula of formula (2) below.
HL = 1000
Vp R
Vp A
(2)
Where.
HL --- Leeb hardness;
Vp R --- rebound velocity of impact body;
A --- vp impact body impact velocity.
4 represents the hardness values
It represents 4.1 Shore hardness values
Before Shore hardness symbol HS shows hardness values \u200b\u200bshown in the HS hardness scale type.
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