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随着伟大的社会主义革命和社会主义建设的迅速发展,工业技术不断提高,在重要产品上采用焊接结构,越来越受到重视。保证焊接结构的质量,避免发生事故,焊接接头的质量检查,便具有特殊的意义。金相检验是其中较有效的试验方法之一,它不仅可以发现焊接接头中的部分缺陷,同时能找出缺陷产生的原因,以提供有关部门参考。
With the rapid development of the great socialist revolution and construction of socialism, industrial technology has been continuously improved and more and more attention has been paid to the adoption of welding structure on important products. To ensure the quality of the welding structure, to avoid accidents, the quality inspection of welded joints, it has a special significance. Metallographic test is one of the more effective test methods, it can not only find some defects in the welded joints, but also find out the causes of defects in order to provide relevant departments for reference.