冷却方式对水玻璃砂残留强度值测定的影响  

Influences of Cooling Modes on Residual Strength Values of Sodium Silicate Sand

作　　者：陈乐平[1] 张希俊[1] 张方[1] 苏建民[1] 

机构地区：[1]昆明理工大学机电工程学院,云南昆明650093

出　　处：《现代铸铁》2005年第4期62-63,共2页Modern Cast Iron

摘　　要：通过实验对比了炉冷和空冷两种冷却方式对水玻璃砂经高温加热后的残留强度值测定的影响,认为炉冷的方式更接近于铸型实际的冷却情况,得到的结果能更好的评价溃散剂真实的溃散效果。因而在溃散性试验中应采用炉冷的冷却方式。The influences of furnace-cooling and air-cooling on residual strength values of sodium silicate sand after heating at high temperature was compared by experiment. It is considered that the furnace-cooling mode is more close to the practical cooling mode of castings in molds. The test results obtained with furnace-cooling could be used to assess more accurately the practical collapsing effect of collapsing agents.Therefore, it＇s suggested that the furnace-cooling should be adopted in the collapsibility test.

关 键 词：水玻璃砂 残留强度 冷却方式 

分 类 号：TG146.22[一般工业技术—材料科学与工程] TG379[金属学及工艺—金属材料]