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Process characteristics of stainless steel precision casting
Stainless steel has higher mechanical properties than cast iron for precision casting, but not as good as cast iron. Due to the high melting point of stainless steel precision casting, the fluidity of molten steel is poor, the molten steel is easily oxidized, and the shrinkage is large. The linear shrinkage is about 1.8-2.5%, and the volume shrinkage rate is about 10-14%.
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Stainless Steel Precision Casting: Specific Requirements for Foundry Sand
The particle shape and particle composition of foundry sand have an impact on the fluidity, compactness, air permeability, strength and permeability of liquid metal of the foundry sand, and are important indicators of the quality of the foundry sand.
Process operation specification for precision casting wax pressing process
Check whether the wax pressing and oil pressure, heat preservation temperature, and operation buttons are normal, and adjust the pressure of the wax pressing machine, the temperature of the wax injection nozzle, the holding time, the cooling time, etc. according to the technical regulations.
How to avoid the shrinkage problem of stainless steel castings in investment casting
Research on the problems existing in the process of shrinking and filling by traditional methods, and continuously improve the treatment effect of reducing the shrinkage problem of stainless steel castings in the precision casting industry, reduce risks, and effectively avoid dangerous factors. Reduce costs as much as possible.
Domestic small and medium-sized casting mold enterprises have developed well and made significant social contributions
After a series of policies issued by our country, domestic small and medium-sized foundry mold enterprises have sprung up like mushrooms after a rain.
my country will adjust some import and export tariffs from next year
Following the reduction of import tariffs on some consumer goods on December 1, 2017, from January 1, 2018, my country will also partially adjust other import and export tariffs.