论文部分内容阅读
介绍了砂型紧实度测定器的结构、使用方法和校核方法;大量试验证明,测定砂型紧实度与测定砂型硬度相比,紧实度更能反映砂型紧实的真实情况。
The structure, using method and checking method of sand compactness tester are introduced. A large number of experiments show that the determination of sand compactness can reflect the real situation of sand compactness better than the determination of sand hardness.