1986年北京国际铸造会议论文摘要(续)

• 作 者: 郭桂林
• 出 处: 铸造
• 发表日期: 1987年04期
• 关键词: 铸件缺陷 球铁件 蠕化剂 铬铁矿砂 型内孕育 石灰石砂 芯砂 蠕墨铸铁 原砂 合成砂

大量铸件缺陷,特别是表面缺陷,是由于型(芯)砂性能不适应造成的.自从合成型(芯)砂和机械化自动化配砂被采用以后,型(芯)砂性能的评定与铸造合金化学成分的设计一样重要.需要研究和评定的范围不仅涉及到型砂和芯砂,而且还涉及到合成砂的组分,特别是原砂(如石英砂、橄榄石砂、铬铁矿砂和锆砂)以及粘结剂和特种附加物.

A large number of casting defects, especially surface defects, are caused by the incompatibility of the molding sand (core) sand. Since synthetic (core) sand and mechanized automated sand have been used, The design of the components is as important as the scope of the research and assessment to be concerned not only with molding sand and core sand but also with the components of synthetic sand, especially raw sands such as quartz sand, olivine sand, chromite and zircon sand ) As well as binders and specialty additions.