The results show that the cracking of the pump body resulted from the interaction of phase transformation and heat stress, as well as the poor quality of metallurgy.
结果表明：泵体裂纹为相变应力和热应力以及材质冶金质量不高共同作用而产生。
Failure analysis of parietal cracking in scavenging pump made of die casting aluminium alloy was carried out by means of metallographic examination, SEM analysis and so on.
借助金相显微镜、扫描电镜等分析手段，对压铸铝合金清洗泵腔壁断裂失效的原因进行了分析。
Based on the status of the cracking of self-suction centrifugal pump in oil farm, the paper makes an analysis on the reasons of cracking and puts forward the measure of prevention.
根据石油油库自吸离心泵泵体破裂的状况，对其破裂原因进行了分析，提出了防止措施。
Based on the status of the cracking of self-suction centrifugal pump in oil farm, the paper makes an analysis on the reasons of cracking and puts forward the measure of prevention.
根据石油油库自吸离心泵泵体破裂的状况，对其破裂原因进行了分析，提出了防止措施。
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