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Surface Oxidation Treatment For Aluminum Alloy Casting

Sep 09, 2022

Due to the smooth operation, durability, and hardness of the aluminum material, aluminum alloy casting is a very common application of parts. It is frequently used in the structure of automobile parts as well as some medium and large industrial production machinery and equipment. However, occasionally we discover that the casting of aluminum alloy has an oxidized surface. As a result, the oxidized casting is extremely unstable in operation and is very likely to lead to work abnormalities.


According to popular opinion and scientific investigation, there are numerous causes for the oxidation of the surface of castings made of aluminum alloy. The following are the main causes. First of all, aluminum alloy castings' equipment is not properly cleaned after use, which leads to a lot of raw material residues adhering to the castings' surface and eventually oxidizing. Second, prolonged soaking in the saturated solution in the casting, typically an aluminum casting mold with chemical elements, will also result in oxidation. Additionally, equipment oxidation and destruction are caused by incorrect operation and actual operation of the equipment.


aluminum alloy casting


We must employ the proper countermeasures based on the particular circumstance to address the aforementioned causes of oxidation. Here are a few solutions to this issue: 1. To keep the casting surface free of additional residues and environmental pollution, clean the casting as soon as possible after application; 2. Increase the object's pouring capacity and select a practical manufacturing procedure; 3. After removing and cleaning the equipment several times, immediately remove the saturated solution of metal materials from it and thoroughly clean it with a cold water slurry; 4. Find a solution to the issue with manufacturing raw materials. Reduce the equipment's use time gradually while removing the residue that was present in the raw materials.


Last but not least, paying close attention to the issue of product quality has been the quality of aluminum alloy castings. Some small manufacturers of aluminum castings use sandblasting to improve efficiency without strictly monitoring the quality of the castings made of aluminum alloy, which makes it very simple to apply residue that frequently causes equipment and machinery to fail. As a result, choosing an aluminum alloy casting manufacturer is equally important.


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