对碟形弹簧裂纹件和原材料，采用金相检验、化学分析、硬度试验、扫描电镜等手段进行综合分析，结果表明：原材料硫化物较多，加工成碟形弹簧后，在其表面形成很多缺陷，磷化、酸洗后，在缺陷处产生氢腐蚀，长时间受力时产生裂纹。
Cracks on the disc spring parts and raw materials, using metallographic examination, chemical analysis, hardness testing, scanning electron microscope by means of a comprehensive analysis of results showed that: raw materials, sulfides are more processed into disc spring, after the formation of many defects in its surface , phosphating, pickling after the defects generated at hydrogen corrosion, cracks generated when the force a long time.
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