采用金属型立式浇铸，严格控制铸造工艺参数(模具温度、浇注温度、浇注速度)，以避免气孔、缩松、冷隔等缺陷的产生。
By using metal mold casting, we can control mold temperature, infusing temperature, infusing speed to avoid defects of pore, cold partition, shrink and loose.
然后，本文通过正交试验的方法研究了压射速度、浇注温度和模具预热温度对铸件缩松缩孔缺陷的影响。
By use of orthogonal test design, how the injection speed, pouring temperature and mold temperature effects the casting shrinkage porosity forming is studied.
研究表明：模具预热温度影响最大，压射速度次之，浇注温度影响最小。
The results show that mold temperature is the most significant influence factor, injection speed takes the second place, and pouring temperature is the least significant influence factor.
研究表明：模具预热温度影响最大，压射速度次之，浇注温度影响最小。
The results show that mold temperature is the most significant influence factor, injection speed takes the second place, and pouring temperature is the least significant influence factor.
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