Precision casting silicon -soluble facial layer process is a commonly used surface treatment process to improve the surface quality and performance of the casting. This process mainly includes the following steps:
The formula of silica sol for precision casting can be adjusted according to specific needs and process requirements. The following is a common silica sol formula:
Shell mold casting is a casting process that uses a mixture of high-strength thermosetting material silica sand or zircon sand and resin to form a thin shell mold and pour it.
Lost foam casting is a precision casting process that uses a thermoplastic material with strong thermal expansion as a model to create a casting by contacting with the surface of the casting and evaporating off.
The key factors of precision casting gear processing are analyzed as follows:
The maximum length of precision castings is 700mm, the easy-to-make length is less than 200mm, and the maximum weight is about 100kg, usually less than 10kg.