Why aluminum castings should be impregnated with inorganic or organic infiltrant

Why aluminum castings should be impregnated with inorganic or organic infiltrant

Aluminum casting impregnation is widely used as a method for treating pores. In the field of micropore sealing technology, we refer to pores having a diameter of less than 0.254 mm as micropores with respect to the wall thickness of 5 mm castings. These holes are usually difficult to find with the naked eye. In the automotive power system and pneumatic hydraulic system castings, the presence of micropores will lead to the leakage of the sealed medium, increase the wear of the machining tool, and at the same time increase the production cost, so that the quality of the product is difficult to be guaranteed. It will lose its proper function during the use of the product.

Vacuum pressure aluminum casting impregnation equipment is an effective method to solve the above problems. The permanent and reliable micro-hole sealing ability of aluminum casting infiltration agent and the effective solution to the impregnation casting process have been widely trusted worldwide. And it can resist heat, oil and chemical erosion. This process can be used on raw materials, machined parts. Does not cause dimensional changes or contamination of the casting.

Aluminium casting impregnation range: suitable for: impregnation of aluminum castings such as zinc alloy, copper alloy, aluminum alloy, cast iron parts, steel castings, etc. Typical aluminum casting impregnated parts such as engine block, cylinder head, intake manifold, oil pump, grease nipple, water pump, bonnet, cast sump, carburetor housing, gearbox housing, crankcase, compressor , ABS controllers, power steering, automotive hubs, fuel pumps, natural gas control valves, hydraulic valves, cooling pumps, sealed aircraft instruments, and electronic instrument covers, air brake parts and various gas meters. These castings are permanently sealed by injection of aluminum casting infiltrant into the micropores, and their pressure bearing capacity reaches the fracture strength of the casting.

The principle of infiltration of aluminum castings: impregnation of aluminum castings is also called impregnation and infiltration. The aluminum casting impregnating glue (aluminum casting infiltrant) is fully infiltrated into the micropores of the workpiece by vacuum pressure aluminum casting infiltration equipment, filling the micropore gap, effectively preventing the leakage and corrosion of the workpiece, thereby achieving the purpose of sealing trapping. .