A method for testing the mechanical properties of anti-seismic mild steel

Abstract

The invention relates to a method for detecting the mechanical property of anti-knock mild steel. The method comprises the following steps: (1), sampling and processing of a sample; (2), clamping two ends or two clamping ends of the sample into a chuck of a testing machine; (3), starting the testing machine to perform a tensile test; (4), measuring and recording the test result. Compared with the prior art, the method provided by the invention has the following benefits: the method for detecting the real mechanical property of anti-knock mild steel is provided, the requirements of the relevant standard are met, and the accuracy of the test result is ensured; after the adoption of the method, the elastic section speed, the yield section speed and the yield rear section speed during the whole test process are targeted, so that the accuracy and the consistency of the test result are ensured. The method has higher maneuverability, so that no software or hardware facility is needed, the situation that the sampling test result in a laboratory and the test result of a real component of a user are consistent is ensured, and quality objection during ordering and delivering of goods is prevented.

Description

technical field [0001] The invention relates to the technical field of testing the mechanical properties of metal materials, in particular to a testing method for the mechanical properties of anti-seismic mild steel. Background technique [0002] After the research and development of anti-seismic mild steel, it is necessary to test the mechanical properties. The testing standard is carried out in accordance with GB / T228 "Metallic Materials Tensile Test Method at Room Temperature". The main testing parameters include yield strength (ReL), tensile strength (Rm), elongation ( A) and reduction of area (Z), etc. According to the provisions of GB / T228, the detection rate of the elastic section during the stretching process is controlled at 6-60MPa / s, the rate of the yield section is controlled at 0.00025-0.0025 / S, and the rate after yielding is not greater than 0.008 / S. Because the seismic steel is very sensitive to the rate, for the rate that also meets the standard, in the two ...

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Problems solved by technology

[0004] It can be seen that different detection rates result in different detection results. Although different detection units implement the GB / T228 detection standard, the detection rate required by the standard is too wide for seismic mild steel, resulting in a clear test result. different

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