Tensile testing machine> can be used in general Bending What is the difference between these two testing machines?
1. Tensile testing machine
The surface tension of the stark bent sample is largest, which can more sensitively reflect the surface defects of the material. Therefore, it is widely used to compare and identify the quality and performance of chemical heat treatment and surface heat treatment of parts such as carburizing and surface quenching.2. Tensile testing machine
>The bending test specimen is simple in form and easy to use. At the same time, the bending testnot the line of action of the deflection force of the specimen during the tensile test, it can not pass through the axis of the stretched specimen exactly, to generate additional bending stress and affect the test results, which may affect the test results displayed by the bending test of the specimen The plasticity of the materials. Therefore, the bend test method is widely used to determine the difference in strength and to indicate the plasticity of brittle and little plastic materials such as cast iron, cast alloys, tool steel and cemented carbide. Therefore, it is the test result of the influence of the heat treatment process on the bending mechanical properties of alloy tool steel, and the optimal quenching temperature range can be determined accordingly.With the progress of society, the rapid En the development of science and technology, all kinds of new materials are emerging in an endless stream, and the performance of the original materials has also made a qualitative leap. The sensible, safe and efficient use of materials and the verification of their mechanical properties is a very important task. Driven by this environment, the materials testing machine industry has also made great progress in recent years. In the field of testing machines, various new technologies and new schemes have been widely used, so the performance of tensile testing machines> has been greatly improved, and the field of use has also been greatly expanded compared to the past.