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About the principle of casting impregnation
Infiltration is widely used as a method to deal with pores. In the field of micropore sealing technology, relative to the wall thickness of 5mm castings, we call pores with a diameter below 0.254mm as micropores. These holes are usually difficult to find with the naked eye. In automobile power system and pneumatic hydraulic system castings, the existence of micropores will cause the leakage of the sealed medium, increase the wear of machining tools, and increase the production cost, making it difficult to guarantee the quality of the product. During the use of the product, it will lose its proper function.
Vacuum pressure impregnation equipment is an effective method to solve the above problems. The permanent and reliable microporous sealing ability of the impregnation agent and the effective solution to the impregnation casting have been widely trusted worldwide. And can resist heat, oil, and chemical attack. This process can be used on raw materials and machined parts. Will not cause dimensional changes or contamination of castings.
Scope of impregnation: Suitable for: zinc alloy, copper alloy, aluminum alloy, cast iron, cast steel, etc. air leakage and oil leakage. Typical impregnated parts such as engine block, cylinder head, intake manifold, oil pump, oil nozzle, water pump, valve cover, cast oil pan, carburetor housing, gearbox housing, crankcase, compressor, ABS Controllers, power steering gears, automobile wheels, fuel pumps, natural gas control valves, hydraulic valves, cooling pumps, sealed aircraft instruments, and electronic instrument shields, air brake parts and various gas instruments, etc. These castings are permanently sealed by infiltrating the micropores with impregnant, and their pressure-bearing capacity reaches the breaking strength of the casting.
The principle of impregnation: impregnation is also called impregnation and infiltration. The impregnant (impregnant) is fully infiltrated into the micropores of the workpiece through the vacuum pressure infiltration equipment, filling the micropore gaps, effectively preventing the leakage and corrosion of the workpiece, so as to achieve the purpose of sealing and leaking.