我厂生产的单筒式人造石英晶体高压釜,因釜体锻件表面裂纹严重,残品率一直很高,经济损失每月达数万元,为此,进行了大量的统计分析,并对各生产环节所出现的疵病进行摄影、记录、跟踪,经试验分析后,找出了产生裂纹的主要原因,提出了防止及消除裂纹的措施,使釜体锻件表面裂纹残品率由原来的约12％下降到2.5％以下。 The single-tube artificial quartz crystal autoclave produced by our factory has a lot of statistical analysis due to the serious crack on the surface of the autoclave forgings, the high residual rate and the economic loss of tens of thousands per month. The flaws occurred in the production process were photographed, recorded and tracked. After the test and analysis, the main causes of cracks were found and the measures to prevent and eliminate the cracks were put forward. 12% down to 2.5% or less.