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佛山市液压件厂负责生产液动、电动、手动各种机床用的电磁、手动、换向、集成块、液压站等的阀件。产品的铸造质量长期不过关,铸铁件质量差,有时废品竟达百分之百,严重影响产品质量的稳定。过去,该厂液压件的铸铁件主要存在四个问题:渣孔、气孔、夹砂、结晶粗大而疏松。曾改变过型砂以及造型、浇注等工艺:在造型上用过靠边横水口、雨淋式水口、环形式水口,底部浇口,在不同的位置加压边冒口;浇注
Foshan Hydraulic Factory is responsible for the production of hydraulic, electric, manual, all kinds of machine tools used in electromagnetic, manual, reversing, manifolds, hydraulic stations and other valves. Long-term product quality casting, but the quality of castings is poor, and sometimes as much as one hundred percent of waste, seriously affecting the stability of product quality. In the past, there were mainly four problems with the cast iron parts of the hydraulic part of the plant: slag holes, air holes, sand-holding, coarse and loose crystals. Have changed the sand as well as modeling, casting and other technology: used in the shape of the side of the horizontal nozzle, rain outlet, the ring of the nozzle, the bottom of the gate, pressure in different positions while riser; pouring