GB/T 7963-2015Sintered metal materials, excluding hard metals -- Tensile test pieces (English PDF)

Foreword

This standard is drafted in accordance with the rules given in GB/T 1.1-2009.

This standard replaces GB/T 7963-1987 "Sintered metal material (not including cemented carbide) tensile specimen".

Compared with GB/T 7963-1987, the main technical changes are as follows.

--- the text structure from the original standard of the two chapters, increased to 7 chapters;

--- increased the requirements of metal injection molding specimens;

--- increased the specific requirements of mechanical processing samples;

--- refinement of the pressing and sintering of the sample pressing the mold requirements.

This standard uses the translation method equivalent to ISO 2740.:2009 "sintered metal material (not including hard alloy) tensile specimen".

And the normative reference in this standard international documents are consistent with the relationship between China's documents are as follows.

GB/T 228.1-2010 Metallic materials - Tensile test - Part 1. Test method for room temperature (ISO 6892-1.:2009, MOD) GB/T 16825.1-2008 Tests for static uniaxial testing machines - Part 1. Tensile force and (or) pressure testing machines Inspection and calibration (ISO 7500-1.:2004, IDT) for ease of use, the following editorial changes have been made to ISO 2740.:2009.

--- the fourth chapter of the title "the production of samples" to "suppression - sintering sample";

--- For ease of understanding, the bar has been added in Chapter 6.

This standard is proposed by China Nonferrous Metals Industry Association.

This standard is owned by the National Committee for the Standardization of Nonferrous Metals (SAC/TC243).

This standard is responsible for drafting units. Xi'an Baode powder metallurgy limited liability company, Shenzhen injection into Technology Co., Ltd., steel research institute.

1 Scope

This standard specifies the size of the mold used for pressing - sintering, metal injection molding - sintering, and sintering and powder forging the size of the tensile specimen was prepared by machining.

This standard applies to all sintered metals and alloy materials (not including hard alloy) tensile specimens.

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.

ISO 6892 Metallic materials at room temperature tensile test method (Metalicmaterials-Tensiletestatatambienttemper-ature ISO 7500-1 Metallic materials - Tests for static uniaxial testing machines - Part 1. Tensile force systems for tension and/or pressure testing machines (Metalicmaterials-Verificationofstaticuniaxialtestingmachines-Part 1. Tension /compressiontestingmachines-Verification andcalibrationoftheforce-measuringsystem)

3 Test method

3.1 The test specimen shall be tested in accordance with ISO 6892 and the tensile tester shall be calibrated at level 1 as specified in ISO 7500-1.

3.2 Test the test data for 3 or more specimens.

4 Pressing - sintering sample