The industrial tests have shown that the service life of new alloy cast iron crucible is 2-3 times as long as ordinary grey cast iron crucible.
工作试验结果表明，新材质制造的坩埚使用寿命是普通铸铁坩埚的2—3倍。
The industrial test results have shown that the service life of new low alloy cast iron crucible is 2-3 times as long as ordinary grey cast iron crucible.
工业试验结果表明，新材质制造的坩蜗使用寿命是普通铸铁坩埚的2 ~ 3倍。
Medium silicon heat-resisting nodular cast iron has been chosen instead of common grey iron to make cast aluminium crucible according to the work condition. making process and cost of the crucible.
依据铸铝坩埚的服役条件，制造工艺和成本要求，选择中硅耐热球铁取代普通灰口铸铁制造铸铝坩埚。
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