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熔模铸件砂眼缺陷分析
Sand Hole Defects Analysis of Investment Casting
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- DOI:
- 作者:
- 朱伟杰 潘玉洪
ZHU Weijie;FAN Yuhong
- 作者单位:
- 无锡市雪浪合金钢铸造厂 无锡市凯斯特铸业有限公司
Wuxi Xuelang Alloy Steel Foundry Co.,Ltd,Wuxi 214161,China;Wuxi Kester Casting Co.,Ltd,Wuxi 214161,China
- 关键词:
- 熔模铸件 砂眼缺陷 控制措施
investment casting sand hole defects control measures
- 摘要:
- 阐述了熔模铸造铸件出现砂眼缺陷的特征与出现的部位,分析了砂眼缺陷产生的内、外部原因并提出了相应的对策。结果表明,砂眼是由于型壳内、外部的型砂和/或耐火材料进入型腔形成的,尽量减少影响型壳质量的人为因素,提高型壳质量是防止铸件砂眼最有效的措施。
The characteristics and parts of sand hole defects in investment casting were described,the internal and external causes of sand hole defects were analyzed,and the corresponding countermeasures were put forward.The results show that the sand hole defects are formed when molding sand and/or refractory materials from inside and outside the mold shell entered the mold cavity.Minimize the human factors affecting the quality of mold shell,the most effective measure to prevent casting sand is to improve the quality of mold shell.