Seamless welded doors and windows also appear in the market. This kind of doors and windows mainly look good on the surface, and they are also beautiful and elegant, without any gaps. But is this kind of doors and windows really good?
Many people think that seamless welding of doors and windows has good sealing performance and fast speed, which is definitely beyond doubt. In fact, problems of this process will gradually be exposed over time. The most obvious thing is that cracks are generated, and they are all different. Such as surface forming crack, transverse crack, solidification crack, segregation crack, crack under weld bead, center crack of weld bead, etc. These reasons are related to low melting point elements. Because it is welded seamlessly, once cracks occur, replacement becomes very troublesome. When making at the same time, the angular strength of many profiles is not good. Or there are obvious traces!
The second is the surface spraying process. Seamless welding doors and windows are welded with aluminum natural color semifinished material. After welding, the surface should be painted, in the process of seamless welding doors and windows we have seen, there are few common doors and windows colors such as white and champagne. Most of the Windows colors of seamless welding doors and windows are dark series such as gray and brown, some manufacturers of seamless welding doors and windows only cover the surface with a thin layer of paint, which will peel off after a long time.
Finally, there are problems of material strength and firmness. From some experimental data, seamless doors and windows are not as good as broken bridge aluminum doors and windows pin glue injection process.
