What are the reasons for the occurrence of pores inside aluminum alloy die-casting parts during aluminum alloy processing? Various problems often occur in aluminum alloy die-casting, and as long as there are some quality control issues, they can lead to the occurrence of defects in aluminum alloy die-casting. Pore problems in aluminum alloy die-casting parts, with defects or no pores in certain positions, may occur or appear on the surface of aluminum alloy die-casting parts after surface treatment.
The internal experience of pore treatment should first examine the cause of pores in aluminum alloy die-casting parts, cut them first, with round pores and smooth surfaces. There are many reasons for porosity in aluminum alloy die-casting parts, and manufacturers come here for everyone.
In production, the introduction direction of aluminum alloy solution is due to water injection or excessive or unfair flow rate, while blockage of exhaust channels and front collision walls during production are another two reasons. The melting temperature is too high. If the filling is not clean enough, the gas in the alloy solution is not removed, and the solidification precipitation is not completely discharged; The later reason is that there is a large amount of gas or excessive use in the paint, and it was not poured before pouring. Gas is sucked into the casting, forming pores.
Due to the presence of holes in aluminum alloy die castings, strict management of each process is required to ensure that the quality of aluminum alloy die castings is improved during the manufacturing process. Rate, and the corresponding solution is also easier. During the manufacturing process, adjust the process parameters reasonably, adjust the injection speed and high-speed switch points, clean loading, reasonably control the melting temperature, use exhaust treatment, adjust the pressure balance of metal liquid, orderly fill the cavity, and ensure that the overflow tank and exhaust groove have sufficient exhaust volume; We effectively ensure the quality of manufacturing die castings.
