论文部分内容阅读
1.压型压型模具是精铸的头一关,直接影响铸件精度。我们原想用金属模或低熔点合金模,因无条件加工,加之一副低熔点合金模需要三千多元,故未采用。我们用的是塑料模,一副模具,仅几十元,三十多个小时就可以制成。精度和光洁度均可达到技术要求。
1. Pressure type die casting is the first off a casting, casting a direct impact on accuracy. We originally wanted to use a metal mold or low melting point alloy mold, because of unconditional processing, combined with a low melting point alloy mold needs more than 3,000 yuan, it is not used. We use a plastic mold, a mold, only a few dozen yuan, more than thirty hours can be made. Accuracy and finish meet the technical requirements.