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抽油机曲柄均衡凝固理论指导下的消失模型腔作浇道工艺
Using Lost Foam Mold Cavity as Gate for Producing Pumping Unit Crank under Guiding of Proportional Solidification Theory
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- DOI:
- 作者:
- 炊景辉 刘立中 张德文
CHUI Jinghui;LIU Lizhong;ZHANG Dewen
- 作者单位:
- 上海瑟逸机电科技有限公司 杭州规矩铸造设备有限公司 大士河机修公司
Shanghai Seyi Mechanical and Electrical Technology Co.,Ltd.,Shanghai 200000,China;Hangzhou Regular Casting Equipment Co.,Ltd.,Hangzhou 311400,China;Dashihe Maintenance of the Company,Lvliang 033000,China
- 关键词:
- 消失模铸造 均衡凝固 型腔作浇道
lost foam casting,proportional solidification using cavity as gate
- 摘要:
- 抽油机曲柄属长条状厚大铸铁件,按传统观念采用侧面偏低位浇注系统时,不仅铸件会呈弯弓状变形,上部碳缺陷也较明显。浇注系统调整为端头阶梯浇道后变形和碳缺陷得以克服。依据均衡凝固理论,实施型腔作浇道工艺,极致简化浇注系统,不仅使铁液利用率提高至97%,曲柄质量也得到进一步提高。Pumping unit crank casting is a long and thick casting,traditionally cast by using side and lower position gating.This may result in curved arch deformation and also up-section carbon defect.After changing pouring system to step gating at the end of casting,deformation and carbon defects were overcome.According to proportional solidification theory,using lost foam mold cavity as gating,poring system was extremely simplified,not only pattern yield increased to 97%,casting quality is improved as well.