By improving foundry method, controlling composition, choosing appropriate inoculant and using Te-coating, the shrinkage defect could be reduce effectively.

• 通过改进铸造工艺、控制铁液成分、选择合适的孕育剂、使用碲涂料等综合控制手段，能有效降低缩松缺陷率，防止缸盖的渗漏现象。