Development status of wood grain technology for industrial and architectural aluminum profiles

by:Zeyi     2021-08-30
At present, aluminum profiles are more and more widely used. Aluminum profiles have high strength, light weight, strong stability, strong corrosion resistance, good plasticity, small deformation, non-polluting, non-toxic, strong fire resistance, and long service life ( Up to 50-100 years), good recyclability, can be returned to the furnace for re-smelting. For many years, all countries in the world have adopted 6063 aluminum alloy (nearly one hundred kinds of aluminum alloy) as door and window frames. The main reason is that the surface of the metal has a good anodizing effect. The anodizing is white at the beginning, and then the electrolyte is further changed to achieve the bronze color. These two main colors have been used in China for more than ten years. Ten years ago, Changzhou, Jiangsu, China introduced powder spraying technology for aluminum surface, which can spray various colors. However, domestic economic conditions did not allow it at that time, and the market did not recognize the colorful doors and windows and regarded it as ugly. With the rapid development of the domestic economy, people’s aesthetic viewpoints have also changed. Nowadays, people think that white and bronze aluminum doors and windows are monotonous and not colorful, and they require a variety of colors, such as green, yellow, red, blue, etc., only green There are as many as six kinds. During the extrusion process of aluminum, if the extrusion die is not good or the die extrudes the aluminum too much, the surface of the aluminum will have extrusion marks. You may touch the surface of the aluminum with your hands to be uneven, in order to make the surface of the aluminum smooth and flat. , The squeeze marks cannot be touched, and the aluminum material factory usually corrodes the squeeze marks with alkaline water first. Sandblasting technology is an advanced method for surface treatment of aluminum profiles in recent years. Special sand is sprayed at high speed to grind away the extrusion marks on the surface of aluminum profiles. In fact, in several well-known domestic large aluminum factories, aluminum extrusion exports have good molds, advanced equipment and technology, no extrusion marks, and no need for sandblasting at all. Users purchase aluminum materials that do not require smoothness, but require 'sandblast aluminum'. In fact, aluminum profiles that have not been sandblasted are really good aluminum profiles. The wood grain of aluminum profiles will continue to be recognized by everyone in 2001, and there will be great development in this century. Due to the high production cost, there have been very few users over the years. With the improvement of the domestic economic situation, there will be a good market for aluminum profile wood grain. In order to reduce the heat conduction of aluminum profiles and achieve the thermal insulation of aluminum windows, China has introduced the technology of 'thermal insulation and broken bridges' to produce 'thermal insulation and broken bridge aluminum profiles.' By adding a non-metallic spacer with low thermal conductivity between the two aluminum profiles, an aluminum profile with excellent heat and cold insulation properties can be obtained. This type of aluminum profile is called 'thermal insulation broken bridge aluminum profile' or simply 'broken bridge aluminum profile' '. The inner and outer sides of the broken bridge aluminum can be profiles with different cross-sections, or profiles with different colors inside and outside, and the middle of the two profiles is a heat-insulating material. There are two types of broken bridge aluminum materials: one is the insulated strip type broken bridge aluminum material, which is a broken bridge aluminum material by inserting a heat insulating strip between two different aluminum materials. Another type is perfusion type broken bridge aluminum. In this part of the cavity of the aluminum profile, heat insulation material is poured, and then the two sides of the prototype material are cut off to form a broken bridge.
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