We must be tested before using alloy steel castings. Check the device for damage and so on. Next, Xiaobian to teach you how to identify the quality of alloy steel casting is good or bad.
1. The appearance of the alloy cast steel can be used to determine the sample block to determine the surface roughness of alloy steel surface, the surface of the fine cracks can be colored, magnetic powder method.
2. The internal quality of the alloy cast steel, available audio, ultrasound, eddy current, X-ray and γ-ray methods to check and judge.
3. Alloy cast steel should ensure that during transportation and storage without corrosion and no mechanical damage, should be accompanied by a certificate, the certificate should be marked with the drawings to meet the drawings or the relevant technical standards and the requirements.
Hope to read the above, you have something to gain.