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Development And Finishing Of Industrial Aluminum Profiles
Dec 05, 2017

Since the late 1970s, China's aluminum alloy doors and windows, curtain wall industry started, aluminum alloy glass curtain wall in the construction of the application and development, from scratch, from imitation to self-developed development, from the construction of small projects to forwarders large-scale projects, from production and construction of low-grade products to the production of High-tech products, From the construction of low-rise building doors and windows to the construction of high-rise glass curtain wall, from only processing simple middle and low profile to extruded cross-section of high-grade profiles, from the development of imports to external contracting projects, aluminum alloy doors and windows and glass curtain wall has been rapid development. To the the 1990s, the appearance of new building materials promoted the further development of the building curtain wall, a new type of building curtain wall in all parts of the country, namely, metal curtain wall, the so-called metal curtain wall is the curtain wall panel material for metal plate building curtain wall, simply said, is to replace glass curtain wall in the form of metal sheet, but because of the difference between the two are very different, the design of the construction process should be considered separately. Due to the excellent processing performance of metal sheet, the variety of colors and good security, can fully adapt to a variety of complex modeling design, can arbitrarily increase the concave and convex lines, and can process various types of curved lines, to the architect to play a huge space, the architect's favor, thus gaining rapid development.

The plain polishing trough usually has two main purposes, that is to plain polishing and fine ash removal of the aluminum alloy treated by the sand surface polishing.

① Plain Polishing: plain polishing groove can not only produce a certain thickness of the oxide film, but also greatly increase the total brightness of aluminum. Due to anodic oxidation, the aluminum alloy lost light after polished by the sand warp, first, the plain polishing treatment, the surface light formation of a dense layer of oxide, will be fixed luster, and then anodic oxidation, and significantly reduce the loss of light; In addition, the Shenyang aluminum profile from the sand surface polishing to anodic oxidation, the need for multi-channel washing, and may be in the air or washed trough stranded , produce pitting, if the first plain polishing trough, prefabricated a certain thickness of the chemical oxide film, to protect first, so as to avoid oxidation in the water tank before the production of pitting or flower materials, improve yield.

② fine ash Removal: acid etching is stubborn,-like the method is difficult to clear. Will seriously affect the appearance of acid etching material quality. Although the sand surface polishing groove can remove most of the acid ash, there may still be a small amount of residue under some special conditions. The plain polishing trough can completely remove the acid and ash, thus guaranteeing the quality of aluminum alloy, and completely eliminate the pollution of the staining tank and the electrophoresis trough by the acid etching ash.