铸造2012，Vol.61Issue(5)：526-529,4.
树脂芯砂的混入对湿型砂质量的影响
Intermixed Resin Core Sand on Quality of Green Sand
赵洪仁 1边庆月 1陈彦山2
作者信息
- 1. 一汽铸造有限公司技术中心,吉林长春130062
- 2. 北汽福田汽车股份有限公司沈阳分公司,辽宁沈阳110117
- 折叠
摘要
Abstract
The influence of a great deal of intermixed resin sand in molding sand system for cast iron on molding sand granularity, effective bentonite content, and burning-on resistance were discussed in this paper, and some responsive methods were brought forward, In term of molding sand systems in First Foundry of our company, the change of materials in molding sand system for gray cast iron and influence of intermixed resin sand on gas evolution for molding sand were introduced in detail. A technical innovative method for molding sand treatment process was brought into effect successfully, in which new sand in molding sand system for ductile iron were replaced by used sand from molding sand system for gray cast iron. This innovative method made not only the cost and casting defects decrease, but molding sand properties to be more stable. Our experiences in practices have proved that the granularity of core sand should be conformity with that of molding sand; the resin membrane of intermixed resin sand can play a role of preventing cast iron castings from burning-on in some degree; supplement of a proper amount of used sand to molding sand system is favorable to stabilizing molding sand system; it is an effective way to stabilize molding sand system to control effective bentonite content and effective additives content well in molding sand when a great deal of resin sand were intermixed to molding sand system.关键词
树脂芯砂/湿型砂系统/有效膨润土含量/有效添加剂含量Key words
resin core sand/ green sand system/ effective bentonite content/ effective additives content分类
矿业与冶金引用本文复制引用
赵洪仁,边庆月,陈彦山..树脂芯砂的混入对湿型砂质量的影响[J].铸造,2012,61(5):526-529,4.
