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Aluminum die casting processing of electrolysis and maintenance requirements
Jan 03, 2018

Aluminum die casting processing is a pressure casting parts, in the process of using can make the installed casting mold in the pressure die casting machine, in use can be effectively heated to liquid aluminum or aluminum The alloy is poured into the die-casting machine inlet and is die-cast by the die-casting machine to cast the aluminum parts or aluminum alloy parts whose shape and size are limited by the die. Such parts are usually called aluminum die casting processing.

Aluminum die casting processing get better sand castings products, you must follow the following points, first, the maintenance of the model, wipe the model regularly is a very important thing, whether it is a metal mold, wood model, only a good model can copy a good product. Second, to master a reasonable modeling process, including the compaction of the sand, the mode of taking the mold, the placement of the sprue and the opening method, the correction of the balance of the model in the cavity and so on, will affect the accuracy of the casting and Surface finish and post-processing.

Third, reasonable smelting methods, especially when melting back to the charge, back to the pre-cleaning material, in addition to oil, remove excess non-aluminum metal, etc., to grasp the appropriate casting temperature, the temperature will lead to excessive casting Internal organization of coarse grains, castings appearance black, blue and other abnormal color, too low, there are internal defects such as slag.

 

The so-called electro polishing in the process of aluminum casting is that by electrolyzing, the surface of the aluminum casting forms an oxide film so as to change the surface state and performance of the casting. After electrolytic polishing, aluminum casting surface changes are very obvious, including the surface coloring; corrosion resistance, wear resistance, hardness and other performance enhancements; protection of metal surfaces.

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