The technical requirements for the lost pattern made from the paraffin-stearin and the shell mould made from colloidal silica in the precision casting were introduced.
介绍用石蜡-硬脂酸低温模料制作熔模，用硅溶胶作粘结剂制造模壳的工艺。
Analyzes the reason of the white defects appearing in the lost pattern casting and puts for - ward some effective preventive measures referenced with the production reality.
分析了消失模铸造的铸件出现白色缺陷的原因，并根据生产实际提出了一些有效的预防措施。
Analyzes the reason of the white defects appearing in the lost pattern casting and puts for - ward some effective preventive measures referenced with the production reality.
分析了消失模铸造的铸件出现白色缺陷的原因，并根据生产实际提出了一些有效的预防措施。
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