Sometimes, mold growth occurs on the surface of Aluminum Die Casting. How can we resolve this situation? It is highly likely that scenario one: If a similar phenomenon occurs, there are two possible reasons:? 1. The results of air oxidation of cutting fluid;? 2. The residual water caused by the product starting to cool after removal.
It is highly possible that situation two: mainly due to inadequate waterproofing, yellowing phenomenon: air oxidation of cutting fluid and concentration of release agent during aluminum die casting. It is very likely that scenario three: the problem of slag removal agent when solving aluminum alloy profiles in aqueous solution, the slag removal agent lacks the composition of fluoride salts, and check the secret recipe of the slag removal agent. The most common solution is to add 0.2-0.5 sodium fluoroaluminate throughout the slag discharge process of aluminum alloy profiles in aqueous solution, which can avoid the phenomenon of color fading and mold growth after casting production and processing.
It is very likely that situation four: What is the problem with the spray painted architectural paint! Over time, the surface of the product may develop mold due to air oxidation.
It is highly possible that situation five: Aluminum alloy profiles are bimetallic, and when they come into contact with acidic or weak alkaline components, they will become different colors. If the cutting fluid is selected incorrectly during the entire process of mechanical processing and manufacturing, after a period of time, Aluminum Alloy Die Casting will cause yellowing, mold growth, and even excessive hair, which in fact also causes substrate corrosion. One of the ways to handle this is to choose a regular cutting fluid, which is rooted by creating a film on the surface to prevent erosion. Aluminum die castings often have insufficient casting, and the fundamental reason is that the alloy mold transfers heat too quickly. In addition, the low melting point of aluminum causes the lithium bromide solution to cool prematurely in the fluidity stage without filling the concave mold. To prevent insufficient casting of aluminum parts
