Aluminum alloy this material has long existed in life, but in recent years through the application of high-tech products to play out the trick, become the representative of Gao Fu Shuai. Especially in the mobile phone design in the past few years in the competition highlighted, Apple, Samsung, Meizu, Xiaomi, Huawei and so on in the use of its materials and processing technology is deep efforts. Today we introduce the various treatment methods of this material!
Aluminum because of its easy processing, good visual effects, rich surface treatment means, the first to be used by various manufacturers, aluminum profile surface treatment is mainly divided into: sand blasting (forming matt pearl silver face), polishing (forming mirror), brushing (forming a satin-like effect), electroplating (covering a layer of other metals), spraying (covering other non-metallic coating).
1 Spray sand
Sand blasting is the use of compressed air as the power to form a high-speed injection beam to spray (copper ore, quartz sand, gold sand, iron sand, sea sand) high-speed injection to the surface of the work piece to be treated, so that the surface or shape of the work piece changes.
Sand blasting has strong applications in engineering and surface technology, such as: improving the viscosity of adhesives, de-fouling, optimizing machined surface burrs, surface matte treatment.
The blasting process is more uniform and efficient than hand-polished, and the stainless steel treatment of this method creates a low-key, durable feature of the product.
2 Polishing
The polishing process is mainly divided into: mechanical polishing, chemical polishing, electrolytical polishing.
Aluminum parts using mechanical polishing and electrolytic polishing can be close to the stainless steel mirror effect, giving people a high-grade simplicity, fashion sense of the future
3 pull
Metal drawing is the process of repeatedly scraping aluminum sheets out of line with sandpaper. The wire can be divided into straight threaded wire, threaded wire, swirling wire, threaded wire.
Metallic wire-pulling process, can clearly show each fine silk marks, so that the metal matte out of the thin silk luster, the product is both stylish and technical sense.
4 Highlight cutting
The diamond knife is reinforced with an engraving machine to cut parts on the spindle of the sculptor at high speed rotation (generally 20,000 sr/min) to produce a local highlight area on the surface of the product. The brightness of cutting highlights is affected by the speed of the milling drill bit, the faster the drill bit is cut, the brighter the highlight, and the darker and easier it is to produce a knife pattern.
High-gloss high-gloss cutting in the use of mobile phones in particular, such as the iPhone 5, in recent years, some high-end television metal border using high-gloss milling process, coupled with anode oxidation and wire-pulling process makes the tv as a whole full of fashion and technology sharpness.
5 anode oxidation
Anode oxidation refers to the electrochemical oxidation of metals or alloys, aluminum and its alloys in the corresponding electrolyte and specific process conditions, due to the action of anode, aluminum products (anodes) on the formation of a layer of oxide film process.
Anode oxidation can not only solve the defects of aluminum surface hardness, wear resistance and so on, but also extend the service life and enhance aesthetics of aluminum, has become an indispensable part of aluminum surface treatment, is currently the most widely used and very successful process.
6 two-color anode oxidation
Two-color anode oxidation refers to anode oxidation on a product and gives a specific area a different color.
Two-color anode oxidation because of the complex process, the cost is higher, but through the contrast between the two-color, more reflects the high-end, unique appearance of the product.