Handle welder's hammer test report QB T 12907. Quality inspection methods.
1. Overview. The welder's hammer is a commonly used metal processing tool, which has the characteristics of light weight, simple structure, and easy use. However, if the quality of the hammer is not up to par, it will directly affect the quality of the weld. Therefore, it is essential for the quality inspection of welders' hammers. This article will introduce the method of handling the welder's hammer test report, and focus on QB T 12907. Application of quality inspection methods.
Second, the process of handling the welder's hammer test report.
1.Application for testing.
First of all, it is necessary to submit a test application to the relevant quality inspection agency and provide relevant information, such as product specifications, use environment, use requirements, etc.
2.Review by testing institutions.
The testing agency will review the application to confirm whether it meets the testing requirements.
3.Submission and testing.
The inspector receives the sample for testing. During the test, the inspector should follow QB T 12907. Quality inspection methods to ensure the accuracy and reliability of test results.
3. QB T 12907. The application of quality inspection methods in welder hammer testing.
qb/t 1290.7. The quality inspection method is one of the important standards in the welder's hammer testing, which stipulates the quality inspection items, methods and judgment basis of the welder's hammer. In the inspection of welders' hammers, the following aspects need to be focused:
1.Appearance quality.
Appearance quality is one of the important indicators of welder hammer quality. In accordance with QB T 12907. According to the provisions of the quality inspection method, the appearance of the welder's hammer should be free of obvious burrs, scratches, bumps and other defects, and the surface roughness of the hammer head should meet the requirements. At the time of inspection, it can be inspected by visual inspection or by a surface roughness meter.
2.Hardness testing.
Hardness is one of the important indicators to measure the performance of metal materials. For welders' hammers, hardness testing is very important. In accordance with QB T 12907. According to the provisions of the quality inspection method, the hardness of the hammer head of the welder's hammer can be tested by the hardness tester to ensure that its hardness meets the requirements of the relevant standards.
3.Metallographic structure analysis.
Metallographic structure analysis is an important means to understand the internal structure of metals. By performing metallographic structure analysis on the hammer head of a welder's hammer, it is possible to understand the microstructure structure, grain size and other parameters of the material, so as to evaluate its quality and service life. In accordance with QB T 12907. The provisions of quality inspection methods can be observed and analyzed by metallographic microscope or scanning electron microscope.
4.Mechanical properties test.
Mechanical properties are important indicators to measure the reaction and performance of metal materials under various external forces. For welders' hammers, testing of mechanical properties is very important. In accordance with QB T 12907. According to the provisions of the quality inspection method, the mechanical properties of the hammer head of the welder's hammer can be tested by tensile test, impact test and bending test to ensure that it has sufficient strength and toughness.
5.Corrosion resistance test.
The corrosion resistance of metal materials is of great significance to their service life and safety. In accordance with QB T 12907. According to the provisions of the quality inspection method, the salt spray test and other methods can be used to test the corrosion resistance of the hammer head of the welder's hammer to evaluate its corrosion resistance and service life in various environments.