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。
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.
坩埚底部从取料口一侧向投料口一侧向下倾斜。
The bottom of the copple is slanted downwards from one side of the reclaiming port to one side of the feeding port.
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