Aluminum belong to the category of non-ferrous metals, due to the wider application, described separately as follows: aluminum and die-cast aluminum alloy commonly have two kinds. Which consists of up to 92% purity aluminum as the main raw material, while adding increased strength, hardness, wear resistance and other properties of the metal elements, such as carbon, magnesium, silicon, sulfur, etc., composed of various ingredients “alloys.”
Aluminum common such as screens, aluminum windows and so on. It is the use of extrusion process, namely aluminum and other raw materials in a furnace after melting, extruding it through a die out of shape, it can be extruded various profiles of different sections. The main properties, namely strength, hardness, wear resistance according to national standard GB6063. Advantages are: light weight of only 2.8, no rust, design changes quickly, mold into low, longitudinal elongation up to 10 meters. Aluminum appearance bright, matte points, its treatment process using anodized oxide film surface treatment to achieve 0.12m / m thickness. Beijing plans produced in accordance with product introduction aluminum wall thickness is selected to optimize the design, not the market, the thicker the better, you should see a cross-sectional structural requirements for the design, it can be uneven at 0.5 ~ 5mm. The thicker the more hard-line laymen think, is wrong view.
Aluminum surface quality also difficult to overcome shortcomings: warping, distortion, black line, punch and white lines. High level design by designer and mold and production process is reasonable, it can avoid these defects less noticeable. Check defect inspection methods should state that the line of sight 40 ~ 50CM to distinguish defects.
Aluminum use in a wide range of furniture: wall skeleton, various suspension beams, tables, table legs, trim, handles, trunking and cover, chair pipes, etc., can be ever-changing design and use!
Although the advantages of aluminum and more, but there is not the ideal place:
Without aluminum oxidation treatment is easy to “rust” causing performance degradation, inferior longitudinal strength iron products. Surface oxide layer plating scratches easily compare the wear resistance. High cost, relatively high cost iron products out of about 3 to 4 times.
2 die-casting aluminum
Die-casting alloys and profile processing methods were compared using equipment they are different, it’s the raw material in aluminum (about 92% purity) and alloy materials, the melting furnace into the die casting machine molding. Company renderings die-cast aluminum imaging product shape can be designed as toys, shapes, convenient connections in all directions, in addition, the strength of its high hardness, and can be mixed with zinc to zinc-aluminum alloy.
Die-cast aluminum molding points:
2, rough polishing to mold than expected
3, fine polishing
On the other hand, the production of aluminum die-casting process, should die in order to create, its cost is very expensive molds are higher than other mold injection molds. At the same time, mold maintenance is very difficult to design a material error is difficult to reduce repair.
Die-cast aluminum Disadvantages:
Each time the number of production and processing should be more than just low cost. Polishing products more complex production cycle costs than slow injection of about 3 to 4 times higher. Requirements should be bigger screw holes (diameter 4.5mm) to connect power only stable Adaptation: table legs, Pantai fittings, decorative head, aluminum seal pieces, table and coffee table backwater like, a very wide range.
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