What are the disadvantages of metal casting?
The metal mold casting has high production efficiency; the cause of defects in the casting produced by the casting machine is reduced; the process is simple, and it is easy to realize mechanization and automation. Metal casting has many advantages, but it also has shortcomings. Such as:
(1) Metal type manufacturing cost is high;
(2) The metal type is airtight and has no repellent property, which may cause defects such as insufficient casting of the casting, cracking or white mouth of the cast iron;
(3) When casting metal molds, the working temperature of the mold, the casting temperature and casting speed of the alloy, the time the casting stays in the mold, and the coating used are sensitive to the quality of the casting and require strict control. .
Therefore, when deciding to use metal casting, the following factors must be considered: the shape and weight of the casting must be appropriate; there must be sufficient batch size; the deadline for completing the production task is permitted.
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