How to solve the problem of water marks in aluminum alloy processing?
May 25, 2022
Recently, we received a question from a manufacturer who processes aluminum alloy materials, saying that there is such a problem with the aluminum alloy workpieces processed by the cutting fluid currently used. The processed aluminum alloy workpieces are left for a period of time, about a few hours. , there will be some traces of water on the surface of the aluminum alloy. Consult whether there is a cutting fluid suitable for their aluminum alloy processing, and it is required that there should be no traces of water.
First of all, through research, it is found that the reason why there will be traces of water after using cutting fluid to process aluminum alloys is likely to be related to the water quality used. In addition, if the water volatilization is not uniform enough, it is normal for watermarks to appear. It is believed that you can try to dry quickly or add some volatile solvents to see if this situation can be improved. In addition, if the cutting fluid appears white spots after machining the aluminum alloy. In this case, it is possible that the processed aluminum alloy is corroded by the cutting fluid. If it is not a phenomenon of corrosion, then it is because of the white matter that precipitates after drying of the components in the cutting fluid. The improvement method can be solved by replacing the cutting fluid. Since aluminum alloy is a very sensitive metal, this determines the particularity of the cutting fluid it uses. The cutting fluid requirements for processing aluminum alloys are stricter than other metal cutting fluids. Therefore, when selecting aluminum alloy cutting fluids, the most It is good to choose a well-known manufacturer for purchase. In addition, the oil stains of aluminum profiles are not wiped clean before aging, and watermarks will be formed on the surface of aluminum materials after aging, and dark spots will appear after oxidation with a certain depth. These problems should be avoided during production. Gloves must be clean when handling materials during aluminum production. , oil stains should be wiped off in time, and equipment and tools should be paid attention to oil leakage, paper pads, slings, etc. should be clean, and the surface of aluminum profiles should be partially protected from water and rain. It must be wiped dry before aging, otherwise it will easily cause watermarks. Oil stains and water stains will not produce oil marks and watermarks as long as they are wiped clean before the aluminum profile is free of dust and aging. The key is to cultivate good operating habits and quality awareness! The aluminum products produced in this way will get better and better!
