机床类铸铁件水玻璃砂芯温度场的测定及溃散性的改善

The Measurement of Temperature Field of Sodium Silicate Sand Cores Used for Machine Tool′s Iron Castings and the Improvement of Collapsibility of the Sand

本文对机床铸铁件水玻璃砂芯在浇注、冷却过程中的温度场进行了测定。结果表明 ,大部分水玻璃砂芯受热温度不超过 6 0 0℃ ;加入 2 %的机油可降低这个温度区域水玻璃砂的残留强度。

In this paper,the temperature field of Sodium silicate sand cores of the machine tool′s cast iron is measured.Results indicate temperature of most range of the core is less than 600℃.2% machine oil is efficiently added in order to the decrease retained strength in the range.