The application of resin sand mold core

precoated sand mold core and hot pressing mold core to investment casting was introduced. The resin sand mold core has the advantages of making-convenient and low price

while the precoated sand mold core is suitable for the production of large investment casting

realizing the automation of core-making

and the hot pressing mold core has the features of precision size and high efficiency

especially suitable for the parts with complicated abnormal cavity. However

the same characteristics of three types mold core are as follows: using mold core to complete cavity to save the cost of mould making and to avoid the coating of cavity

so improving the quality of mold shell making and production efficiency.