Basic knowledge of office furniture materials

- Nov 05, 2018-

(1) Aluminum: 


Aluminum belongs to one of the non-ferrous metals in the metal category. Because of its wide application, aluminum profiles are

 used in furniture: screen skeleton, various suspension

 beams, table feet, decorative strips, handles, wiring grooves  caps,

 chair tubes, etc., which can designed and applied in a variety of ways. It introduced as follows:


Aluminum profiles and die-casting aluminium alloys used. Aluminum ingots with purity up to 92% are the main raw materials,

 and metal elements such as carbon, magnesium, silicon and sulfur

 added to increase strength, hardness and wear resistance to form a variety of "alloys".

1.1 Aluminum profiles: Aluminum profiles, such as screens,


 windows and so on, are usually extruded by extrusion process, i.e.

 aluminium ingots and other raw materials melted in the

 melting furnace and extruded to the die by extruder. It can also extrude profiles with different sections. The main properties, such

 as strength, hardness and wear resistance, are under

 the national standard GB6063.

office furniture materials

Advantages: 


light weight only 2.8, no rust, fast design change, low input of die, vertical elongation up to 10 meters. The appearance of aluminium profiles can be divided into bright and dumb light. The treatment process of aluminium profiles is anodic oxidation. The oxide film on the surface of aluminium profiles can reach 0.12m/m thickness. Aluminum profile wall thickness is selected according to product design optimization. It is not the thicker the better in the market. It should be designed according to the requirements of section structure. It can be uneven in 0.5-5 mm. The layman's view that the thicker the harder, in fact, is wrong.


Disadvantages: 


warpage, deformation, black line, convex concave and white line. The high level of designer and reasonable design and production process of die can avoid the above defects not obvious. Inspection defects should be carried out according to the inspection methods prescribed by the state, that is, the visual distance of 40-50CM to identify defects. Unoxidized aluminium is easy to rust, which leads to performance degradation. Longitudinal strength is inferior to that of iron products. The wear resistance of surface oxide layer is inferior to that of electroplating layer, which is easy to scratch. The cost is higher.