论文部分内容阅读
熔模精铸件夹砂缺陷的产生及控制承德石油高等专科学校（０６７０００）柴增田我们采用的是水玻璃一氯化扶硬化、表层石英粉背层石英粉加铝矾土涂料、撒石英砂制无工艺。１夹砂位置调查对产生夹砂缺陷铸件进行统计，结果见图ｆｏ。图１＃件区位划分（ａ）及其夹砂发生的频...
Casting precision casting casting sand production defects and control Chengde Petroleum College (067000) Chai Zengtian we use the water glass chlorinated help, surface quartz powder back quartz powder plus bauxite coating, sand production quartz sand Process. 1 Sand Location Survey Sand casting defects generated casting statistics, the results shown in Figure fo. Figure 1 # Location Division (a) and its occurrence of sand grading frequency ...