../ 我的未上传文件夹 /...../ 更多资料请访问 . (.....) ../ 我的未上传文件夹 /...../ 更多企业学院：...../Shop/《中小企业管理全能版》183 套讲座+89700 份资料...../Shop/40.shtml《总经理、高层管理》49 套讲座+16388 份资料...../Shop/38.shtml《中层管理学院》46 套讲座+6020 份资料 ...../Shop/39.shtml《国学智慧、易经》46 套讲座...../Shop/41.shtml《人力资源学院》56 套讲座+27123 份资料...../Shop/44.shtml《各阶段员工培训学院》77 套讲座+ 324 份资料...../Shop/49.shtml《员工管理企业学院》67 套讲座+ 8720 份资料...../Shop/42.shtml《工厂生产管理学院》52 套讲座+ 13920 份资料...../Shop/43.shtml《财务管理学院》53 套讲座+ 17945 份资料 ...../Shop/45.shtml《销售经理学院》56 套讲座+ 14350 份资料...../Shop/46.shtml《销售人员培训学院》72 套讲座+ 4879 份资料...../Shop/47.shtml用于冷芯盒工艺的高性能水基涂料的讨论Development the Water-based coating for cold box process生银,兴华,金晓春,黄爱民（亚什兰(中国)投资铸造部, 200030 ） 摘要: 水对冷芯盒工艺的砂芯强度影响非常大,试验数据表明,已经生产出来的砂芯,假如在高潮湿(相对湿度 90%)中存放 24 小时,强度会下降 50%-67%.生产实际中,芯砂中假如含水量大于 0.2%时,几乎不能用于冷芯盒工艺;鉴于此,开发出一种对砂芯强度影响最小的水基涂料。关键词:冷芯盒工艺;砂芯强度; 9022C 水基涂料Abstract: Sand cores made by cold box process are very sensitive to moisture. Itis shown that the tensile strength of sand cores will decrease by 50-67% after theyare stored 24 hours under 90% relative humidity. It is recommended that sandmoisture should be less than 0.2% in the foundry. To minimize the impact of waterbased coating to sand core strength, Ashland developed a kind of coating with minimalpenetration into sand cores.Key Words: Cold Box Process, Sand core strength, 9022C water based coating早在上世纪 60 年代时,冷芯盒工艺就由亚什兰公司发明并申请了专利,随后的 80 年代,我国引进了该工艺用于汽车发动机主要零部件的生产 ， 并一度在我们的铸造教科书上...
