山东冶金
山東冶金
산동야금
SHANDONG METALLURY
2015年
1期
34-35,42
,共3页
消失模涂料%高温强度%耐急热性%钠基膨润土%悬浮剂CMC
消失模塗料%高溫彊度%耐急熱性%鈉基膨潤土%懸浮劑CMC
소실모도료%고온강도%내급열성%납기팽윤토%현부제CMC
EPC coating%high-temperature strength%spalling resistance%sodium bentonite%suspending agent
为解决铸件夹砂问题，设计不同配比的涂料对其进行高温强度及高温抗裂性能试验，结果表明，钠基膨润土的加入量越大，CMC和有机黏结剂加入量越小，试样高温强度越高；钠基膨润土的含量越高，涂料高温抗裂性能越好，适宜的加入量为2.8%～4%；CMC加入量控制在3.5%左右涂料才可获得较好的高温抗裂性能。
為解決鑄件夾砂問題，設計不同配比的塗料對其進行高溫彊度及高溫抗裂性能試驗，結果錶明，鈉基膨潤土的加入量越大，CMC和有機黏結劑加入量越小，試樣高溫彊度越高；鈉基膨潤土的含量越高，塗料高溫抗裂性能越好，適宜的加入量為2.8%～4%；CMC加入量控製在3.5%左右塗料纔可穫得較好的高溫抗裂性能。
위해결주건협사문제，설계불동배비적도료대기진행고온강도급고온항렬성능시험，결과표명，납기팽윤토적가입량월대，CMC화유궤점결제가입량월소，시양고온강도월고；납기팽윤토적함량월고，도료고온항렬성능월호，괄의적가입량위2.8%～4%；CMC가입량공제재3.5%좌우도료재가획득교호적고온항렬성능。
In order to solve the problem of casting sand, the EPC coatings with different ratio were designed, and their high-temperature strength and spalling resistance were tested. The experimental results shown that:the more addition amount of sodium base bentonite and the less addition amount of CMC and organic binder the coating has, the higher the high-temperature strength of the test pieces are;the higher content of sodium base bentonite the coating has, the higher the spalling resistance of the coating are. And the 2.8% to 4% of dosage is suitable. When the additional amount of CMC content is 3.5%, better spalling resistance of the coating can be obtained.
