一、前言造型砂的质量,直接影响到铸件质量。型砂配比中的含水量对型砂影响很大,目前,一般厂矿对型砂含水量的检验,基本上都用烧烤法。用烧烤前后的二次称量差来求出含水量。这种检验方法,速度太慢,不容易达到由检验控制型砂质量的目的,为此,我们自制了这台仪器。 First, the foreword Molding sand quality, a direct impact on the quality of castings. Sand content in the proportion of sand has a great impact on the sand, at present, the general factory of sand moisture content of the test, basically using the barbecue method. Weigh the water content with the secondary weighing difference before and after the barbecue. This test method, the speed is too slow, it is not easy to achieve the purpose of testing the control of sand quality, for which we made this instrument.