磺酸自硬砂引起球铁件表层异常组织的研究A Study of the Abnormal Structure at the Surface Layer of Nodular (SG) Iron Castings Produced by Sulfonic Acid Cured Sand Mold
许进
摘要(Abstract)：
通过实验研究,用甲苯磺酸作催化剂的呋喃树脂自硬砂与稀土镁作催化剂生产的球铁件,通常在其铸件表层出现异常组织。提出导致异常组织产生的原因,同时又降低了试件的冲击值,并且采用反应型或屏蔽型涂料将可防止球铁件表层异常组织缺陷,为生产性能良好的球铁件提供技术依据。
关键词(KeyWords)： 树脂砂;催化剂;甲苯磺酸;球铁件;异常组织
基金项目(Foundation):
作者(Author): 许进
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