任何一个优质金属机器零件,必须外形完好,内部致密、缺陷少,使用性能合乎要求。那么怎样知道内在质量的好坏呢?要进行金相分析。金相分析技术是广泛用于金属材料研究和检验的物理检验方法。金相分析的目的,一可以鉴定成品金 Any high-quality metal machine parts, must be in good shape, internal dense, fewer defects, the use of performance requirements. So how do you know the quality of the intrinsic quality? Metallographic analysis. Metallographic analysis technology is widely used in metal materials research and testing of physical testing methods. The purpose of metallographic analysis, one can identify the finished product gold