Correct Selection of Raw Material For Resin Bonded Sand Casting Process Can Reducing Casting Cost
Release time： 2020-06-13 10:04:00.000
Resin bonded sand is widely used as mold (core) sand in modern casting production.The casting will not have expansion defects when the molding sand is prepared with the ceramic foundry sand. Ceramic foundry sand is a neutral material,and both acid and alkali binder can be used with . Ceramic foundry sand also has a special advantage, that is, it is not broken, no dust, can be recycled repeatedly, recycled for hundreds of times, and the cost performance is naturally high.Compared with chromite sand and zircon sand, the price of ceramic foundry sand is only 25-50% of zircon sand and chromite sand. At the same time, since the sand grain is spherical and the surface area is small, the added amount of resin can be reduced by 30-50%, and the added amount of water glass is less than or equal to 4%; As a result, the casting defects caused by the binder are reduced and the rate of finished products is increased. Ceramic foundry sand has many advantages, such as high refractoriness which can reach more than 1820℃ and easy to collapse; Wtith the mullite phase much higher than that of sintered products, ceramic foundry sand has good refractoriness, high thermal conductivity, good stability, no cracking and so on.
Lost foam casting (LFC) process has been developed rapidly in recent years because of its low investment and low cost.The gating system plays a very important role in the lost foam casting process, an
The V process casting originated in Japan. It uses plastic film to vacuum to make dry sand molding, that is, physical modeling.Because it does not use binder, shakeout is simple and convenient, the co
It has become a trend for foundry industry to move from tradition to intelligence.The typical application mode of intelligent casting is digital foundry, which uses information technology to manage al
WeChat public account