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轧辊轴承座壁厚差异大,尺寸精度高,结构特别。座体多处有较高的UT检查指标和其它明确的内外部质量要求项目。通过补贴和外冷铁、冒口补缩和浇注系统的合理设计,完成了该件的凝固补缩成型,避免了铸造缺陷,一次通过较高的UT等各项检查,也给后续的机械加工带来方便,获得了良好的效果。介绍该件的工艺设计思路,重点说明冒口、冷铁和补贴等的有效设置和其它工艺措施的综合应用。
Roller bearing wall thickness difference, high dimensional accuracy, special structure. The seat body has many high UT inspection indicators and other explicit internal and external quality requirements of the project. Through the subsidies and external cooling iron, riser feeding and the reasonable design of pouring system, it completed the part of the coagulation and shrinkage forming, to avoid casting defects, once through a high UT and other inspections, but also to follow-up machining Bring convenience, get good results. Describes the process design ideas of the piece, focusing on the effective application of riser, chill iron and subsidies, and other comprehensive application of technological measures.