Aluminum type

Aluminum belong to the category of non-ferrous metals , due to the wider application separately described as follows: There are aluminum and die-cast aluminum alloy commonly used in two ways. Mainly by the purity of more than 92% of the main raw material ingot , while adding to increase strength, hardness , wear resistance and other properties of the metal elements , such as carbon, magnesium , silicon, sulfur, etc. , consisting of a plurality of components " alloys ."

1.1 aluminum

Common as aluminum screens, aluminum windows and so on. It is manufactured using extrusion process , i.e. the raw materials such as aluminum ingot is melted in the furnace , the mold extruded by extrusion molding outflows , it can be extruded in different sections of the various profiles . The main performance that strength, hardness, wear resistance according to national standard GB6063. Advantages are: light weight of only 2.8 , no rust, design changes quickly, mold into a low , longitudinal elongation of up to 10 meters or more. Shiny aluminum exterior , matte points, its treatment process using anodized oxide surface treatment to reach 0.12m / m thickness. Aluminum wall thickness according to the optimization of product design options, not as thick as possible on the market , should see the design requirements of the sectional structure , it can be 0.5 ~ 5mm uneven . The thicker the more hardline outsiders think , in fact, is the wrong way .

Aluminum surface quality is also more difficult to overcome deficiencies : warping , distortion, black line , punch and white lines. High levels of designers who design and produce molds and reasonable process , to avoid the defect is not obvious . Check the defect inspection method shall be prescribed by the State , namely the horizon 40 ~ 50CM to determine defects.

Aluminum furniture in a wide range of uses : the wall skeleton, various suspension beams , table legs, trim, handles, go trough and lid , chair tube , etc. , can be ever-changing design and application Although the advantages of multi-

aluminum , but there is not the ideal place :

Not easily oxidized aluminum " rust " which leads to performance degradation , less than the longitudinal strength of iron products . Surface oxide layer plating scratches easily compare the wear resistance . Higher cost , relative iron products cost about 3 to 4 times higher .

1.2 die-cast aluminum

Die-casting alloys and profiles processing methods compared to the use of equipment are different, it 's raw materials to aluminum ingots ( about 92% purity ) and alloy materials, the furnace to melt into the molding die casting machine . Die-cast aluminum product shape can be designed as imaging toys , shapes, convenient connections in all directions , in addition, its high hardness strength , and can be mixed with zinc to zinc-aluminum alloy .

Die-cast aluminum molding process of :

1, die casting

2, rough polishing to mold more than expected

3, fine polishing

The other hand, the production of aluminum die-casting process , should die in order to manufacture its mold cost is very expensive , are higher than other mold injection molds. Meanwhile, mold maintenance is very difficult to design a material error is less difficult to repair .

Aluminum Disadvantages :

Each number should be more production and processing , the cost was low . Polishing is more complex than the production cost of the product cycle slow injection of about 3 to 4 times higher . Requirements should be bigger screw holes (diameter 4.5mm) connector force was stable Adaptation: legs, Pantai fittings, decorative head , aluminum sealing parts, such as table and coffee table backwater , a very wide range .