Casting is one of the oldest metal forming methods, and about 15% to 20% of the auto parts are castings produced by different casting methods. These castings are mainly key components of the power system and important structural components. At present, Europe and the United States automobile industr......
Read MorePhosphating treatment is widely used pretreatment technology, a kind of chemical layer converting process. Such process are mainly used as the surface treatment for steel castings and iron castings. Sometime, they are also used for the ferrous metal castings, such as aluminium die castings or zinc c......
Read MorePressure tightness is a very important factor for application of some investment castings, such as the valve body castings and pump body castings. Low pressure tightness of such products will lead to leaking problems, which will affect the safety or life time of the whole system. To control the pres......
Read MoreNingbo Zhiye Design the structure of the gray iron investment castings.We usually should pay attention to the following factors when designing the structure of gray iron investment castings: *The wall thickness should be not too thin and we may add the thickness in the corners of gray iron invest......
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