Pump body is by cast iron casting blank forming, severe wear new thing should be changed.
泵体是由铸铁铸造毛坯成型，出现严重磨损时应更换新件。
Pointing out the main reason of crack formation is that casting blank is not up to standard and the strength of parts is not enough.
指出铸造的毛坯件不合格及零件本身强度不高是产生裂纹的主要原因。
On the bases of radiation theory, a temperature measurement equipment based on the 12 bit AD line-array CCD for measuring the surface temperature of casting blank is designed.
根据辐射测温原理，在12位AD的线阵CCD的基础上，设计并且实现了连铸铸坯的表面温度测量装置。
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