Tensile fixture for platy sample and application method thereof

A plate-shaped sample and fixture technology, which is applied in the direction of applying stable tension/pressure to test the strength of materials, instruments, measuring devices, etc., can solve the problem of not being able to test small-sized samples, wasting time, manpower and material resources, and prone to oxidation. and sintering, to achieve the effect of reducing test cost, convenient loading and stable connection
CN106483019APending Publication Date: 2017-03-08HUAZHONG UNIV OF SCI & TECH
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
HUAZHONG UNIV OF SCI & TECH
Publication Date
2017-03-08

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Abstract

The invention discloses a tensile fixture for a platy sample, characterized by comprising fixture bodies (3 and 5) each of which provided with a pinhole (7) in one end and which are connected to tensile tester connection rods (1 and 6) through pins (2) so that axes of test tensile force, the fixture and a test piece are superposed; the other ends of the fixture bodies (3 and 5) are each provided with a vertical slot running through the fixture, the bottom of each groove slot is provided with a sample groove (8), the width of the sample grooves (8) is slightly greater than the thickness of the test piece (4) so that it is ensured that the test piece (4) may be placed in the fixture bodies (3 and 5) for a tensile test. The invention also discloses a tensile test method employing the fixture. According to the scheme of the invention, the end of each fixture body is provided with the vertical slot running through the fixture, and it is possible to carry out a tensile test for various samples of high strength, high hardness and high processing difficulty.
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Description

technical field

[0001] The invention belongs to the field of clamps, and more specifically relates to a tensile clamp for a plate sample and a method for using the same. Background technique

[0002] Superalloys are the key materials used in the hot end of aerospace engines. In advanced aeroengines, the amount of superalloys accounts for more than 60% of the total engine. The mechanical properties of such alloy materials, including normal temperature / high temperature tensile properties, fatigue properties, etc., are important indicators to measure materials under high temperature working conditions.

[0003] At present, tensile testing machines are often used to test the properties of metal materials. When performing high-temperature tests, threaded connection structures are used, and the tested samples are threaded with the pull rods of the tensile testing machine. Although this kind of sample is very tightly connected with the pull rod of the testing machine during the te...

Claims

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