Introduce technology feature of 911 lead liquid covering flux.
介绍了911铅液覆盖剂的技术特征。
Based on the principle of volume contraction of freezing, the designing process of riser fitting to the cast steel inserted die with exothermic covering flux has been studied.
根据体收缩原则，研究了适用于模具镶块铸钢件加发热覆盖剂保温的冒口设计工艺。
In order to improve the insulation performance of the ladle covering flux a new type carbide rice husk based ladle covering flux has been developed.
为了改善钢包覆盖剂的保温性能，研制出了采用炭化稻壳为主原料的新型钢包覆盖剂。
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