摘要
分析了 2 5 0口径止回阀阀体裂纹产生的原因 ,并提出了严格控制钢水成份 ,确定合理的浇口位置 ,改善阀芯的退让性 ,加强激冷 ,热型、热芯合箱浇注等工艺措施 ,从而消除 2 5
In this paper, causes of casting cracks of check valve bodies in diameters over φ250 mm is analyzed and crack preventing measures from technological point of view are presented, including chemical composition controlling, runner position determining, core′s withdrawing capability improving, casting dies and cores heating and castings positive cooling etc.As the result,the elimination of cracking defects in valve body is finalized.
出处
《辽宁工学院学报》
2001年第6期36-37,共2页
Journal of Liaoning Institute of Technology(Natural Science Edition)
