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螺杆压缩机铸件应力对加工尺寸影响研究
Research on the Influence of Casting Stress on Processing Dimensions in Screw Compressor
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- DOI:
- 作者:
- 李日华，张天翼
LI Rihua, ZHANG Tianyi
- 作者单位:
- 珠海格力智能装备有限公司，广东 珠海 519000
Gree Intelligent Equipment Co., Ltd., Zhuhai 519000, China
- 关键词:
- 螺杆压缩机；铸件应力；加工尺寸
screw compressors; casting stress; processing dimensions
- 摘要:
- 螺杆压缩机对铸件尺寸加工精度要求非常高，属于精密加工件。 通过对铸件人工时效退火处理和铸件砂型
内冷却后的机体加工后尺寸进行了对比检测。 结果表明，铸件在砂腔内冷却和人工时效退火处理对加工尺寸影响并不
明显。 铸件砂型内冷却温度 300 ℃以下满足加工尺寸要求。
The screw compressor had a very high requirement on the dimensional machining precision of casting, and it was belong to the precision machining workpiece. The dimensions of castings processed after artificial aging annealing and cooling in sand mould were compared and measured. The results show that cooling and aging annealing treatment in sand chamber have no obvious effect on machining dimension. Casting sand mold cooling temperature below 300 ℃ to meet the processing size requirements.