Surface finishing

Surface finishing processes may be employed to improve appearance, adhesion or solder ability, corrosion resistance, tarnish resistance, chemical resistance, wear resistance, hardness, modify electrical conductivity, remove burrs and other surface flaws, and control the surface friction. In limited cases some of these techniques can be used to restore original dimensions to salvage or repair an item.

Advantage: help to get products with good performance and good appearance

Electroless nickel plating treatment is to use electroless nickel plating liquid to plate a layer of nickel plating on the metal surface to prevent the contact between corrosive substances and the metal matrix, protect the metal matrix, and achieve the role of surface rust prevention.

Powder coating is firstly protective to extend the life of the work piece, and secondly decorative to achieve beautiful appearance. Again, it is a special purpose to achieve special performance. Such as: sound insulation, heat insulation, fire prevention, etc.

Anodizing : A metal or alloy product is used as an anode, and an oxide film is formed on the surface using electrolysis. Metal oxide films change the surface state and properties, such as surface coloring, improving corrosion resistance, enhancing wear resistance and hardness, protecting metal surfaces, etc.  Function: Protective, decorative, insulating, improve bonding with organic coatings, improve bonding with inorganic coatings.

Passivation refers to the process in which metal is oxidized by strong oxidants or electrochemical methods to make the surface into an inactive state, that is, passivation. It is a method to transform the metal surface into a state that is not easily oxidized and slow down the corrosion rate of the metal.

The silver plating process is a technology that deposits a uniform and dense silver layer on the surface of various substrates through chemical or electrochemical methods.This process is widely used in many industries, including the electronics industry, communication equipment, instrumentation manufacturing, etc.Silver plating can not only improve the electrical. conductivity and thermal conductivity of the product, but also enhance its welding performance and oxidation resistance. It can also improve the aesthetics and durability of the product.

The advantages of screen printing：

 

(1) is not limited by the size and shape of the substrate. General printing can only be done on a flat surface, while screen printing can not only print on a flat surface, but also print on special-shaped molded objects such as spherical curved surfaces. , anything with shapes can be printed by screen printing.

(2) The layout is soft and the small printing screen is soft and elastic.

 

(3) The ink layer has strong coverage and can be printed in pure white on completely black paper, with a strong three-dimensional effect.

(4) Suitable for various types of inks.

(5) Strong light resistance can keep the gloss of printed matter unchanged.(Both temperature and sunlight have no effect).This eliminates the need for additional lamination and other processes when printing some stickers.

 

(6) Printing methods are flexible and diverse.

(7) Plate making is convenient, cheap, and the technology is easy to master.

(8) Strong adhesion.

(9) Can be hand-screen printed or machine printed.

(10) Suitable for long-term display, rich in outdoor advertising expressiveness. 
 

 

 

Dispensing is a process, also known as sizing, coating, filling, dripping, etc., which involves applying, potting, and dripping electronic glue, oil, or other liquids onto the product so that the product can be pasted or filled. Sealing, insulation, fixing, surface smoothing, etc. 
 

1. Sealing protection.

2. Waterproof and dustproof function.

3. Insulation effect.

4. Shock absorption and buffering effect.

5. Fixing and bonding.

6. Lubrication reduces friction.

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