Silk screen is short for “screen-printing”. Screen printing is to stretch silk fabric, synthetic fiber fabric or metal mesh on the screen frame and use the method of hand engraving paint film or photochemical plate making to make the screen-printing plate. Modern screen-printing technology uses photosensitive materials to make a screen-printing plate.

Laser engraving is based on numerical control technology, and laser is the processing medium. The physical degeneration of the material to be processed by the instantaneous melting and vaporization under the irradiation of laser engraving can make the laser engraving achieve the purpose of processing. Laser engraving is the use of laser technology to engrave text on an object. The characters engraved by this technology have no nicks, the surface of the object is still smooth, and the writing object will not abrasion. (Aluminum alloy can be laser engraved in black font)

The diamond knives are reinforced on the high-speed rotating (generally 60,000 rpm) spindle of the fine-engraving machine to cut the parts, and a local highlight area is generated on the surface of the product. The brightness of the cutting highlights is affected by the speed of the milling drill bit. The faster the drill speed, the brighter the cutting highlights.

The electrophoresis process is divided into anodic electrophoresis and cathodic electrophoresis. If the coating particles are negatively charged, the workpiece is the anode, and the coating particles deposited on the workpiece under the action of the electric field force is called anodic electrophoresis; on the contrary, if the coating particles are positively charged, the workpiece is the cathode, and the coating particles deposited on the workpiece to form a film is called anodic electrophoresis.

Passivation refers to a process in which the metal is oxidized by a strong oxidant or electrochemical method to make the surface inactive which is passivation. It is a method to transform the metal surface into a state that is not easy to be oxidized and delay the corrosion rate of the metal. In addition, the phenomenon of an active metal or alloy in which the chemical activity is greatly reduced and becomes a noble metal state is also called passivation.

Hairline metal brushed is the manufacturing process of repeatedly scraping aluminum surface out of lines with sandpaper. Hairline metal brushed can be in different style of straight line, chaotic, swirling and thread. This process can clearly show the lines with modern and technology outlook.

This process is using the impact of high-speed sand flow to clean and roughen the metal surface. The surface treatment of aluminum parts in this method can make the surface of the workpiece obtain a certain cleanliness with different roughness, and improve the mechanical process of the workpiece surface, thus improving the fatigue resistance of the workpiece and increasing the adhesion between it and the coating. The adhesion force extends the durability of the coating and is also conducive to the leveling and decoration of the coating. We often see this process in various products of Apple, and it is also more and more adopted by existing TV cabinets or middle frames.