PVD plating method before plating surface purification treatment

         

The basic method before plating PVD plated surface cleaning solvent purification treatment is a relatively common method of application. In this method, the cleaning fluid often has:

(1) demineralized water or aqueous systems, such as those containing detergent in water, acid or alkali;

(2) an anhydrous organic solvent, such as ethanol, isopropanol, ketones, such as acetone;

(3) petroleum fractions, chlorinated or fluorinated hydrocarbons;

(4) emulsions or solvent vapors;

(5) metal cleaning agent (commercially available). Gold metal cleaning agent can be divided into acidic, basic and neutral to slightly alkaline three,

its use are: acidic oxide used for cleaning, rust and corrosion; alkaline surfactant-containing, for removing lightweight oil; neutral to slightly alkaline pH of the surface to avoid damage.

Choice of which depends on the nature of a cleaning solvent contamination. For example, the plating solution available base oils chemical plants and animals on the surface to the oil; mineral oils can be used to remove the organic solvent. Various types of oil but in fact often exist, so when washing has often need to take several different cleaning solvents.

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DLC vacuum coating can improve adhesion film

         

DLC coating to improve the instantaneous energy and the sputter target bombardment ionization rate (up to 50% to 60%), close to the ionization rate of the arc. DLC coating by the action of an electromagnetic field can greatly increase the energy of the ion deposition, DLC coatings to improve film adhesion and density.
 
DLC coating to improve the quality bombardment cleaning, in particular, can realize the non-conductive plating before cleaning, assisted deposition coating, increasing the energy deposition particles, improve adhesion film. DLC coating nano-deposition technology, DLC coating is the future direction of the coating structure, DLC coatings deposited layers of different components of the composite structure of the film thickness by nanoscale to achieve greatly enhanced coating performance.

DLC coated single color PVD coating has failed to meet the needs of the market, and then put between color plating requirements, which is the development direction of decorative coatings, plating color quality between a representative of PVD processing enterprise production technology level mark. DLC coatings reduce ignition of the workpiece, increasing ion energy deposition, enhanced adhesion strength, improve the deposition rate.

DLC coating by low temperature condensation effects, rapid trapping residual gas in the vacuum within the system, in particular water vapor, greatly reducing the time to vacuum, to obtain a clean vacuum environment. DLC coating green, greatly reducing energy consumption, the vacuum system pumping speed stability, coating process is stable and reliable, and reproducible.

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PVD coating technology major application industries

             

Applications PVD coating technology is mainly divided into two categories: decorative plating and plating tool.

Decorative plating main purpose is to improve the performance and appearance of the decorative color of the workpiece while the workpiece is more wear resistant prolong its service life; this area is mainly applied in various areas of the hardware industry, such as door and window hardware, locks, bathroom hardware and other industries.

Tools plated main purpose is to improve the surface hardness and wear resistance of the workpiece, reducing the friction coefficient of the surface, and improve the life of the workpiece; this area is mainly used in a variety of knives, scissors, cutting tools (such as turning, planing, milling , drills, etc.) and other products.

The difference with other plating PVD coating

PVD coating and water electroplating factory car most of the earlier rounds are water plating, PVD coating, high-profit, high pollution (primary identity is re-hsin fall within the attachment hub, therefore, for environmental causes water plating wheels entrance is not), and only a single tone plating "electroplating white." PVD coating and another two evils, assuming a position emerge from the skin, peel it, would a one of then from the skin, peel, PVD coating up heavy metals out of this skin is not complicated by erosion of a serious environment pollution.

PVD coating using oceanic top powder coating technology, magnetron PVD coating technology to stop processing electroplating products, PVD coating characteristics of the production technology is replacing high-polluting water plating conservative, high-profit establishment, with zero pollution, low profits, PVD coating high production mode function to create products with high added value, PVD coating products with advanced technology, luxury and beautiful, green, Chen this inexpensive, feature sophisticated, PVD coating has been popular to admit foreign markets.

PVD coating can do more choice of colors, but also with a hub outcomes appear in more than one color, PVD coating replaces the ills of a single color of water plating. PVD coating accidentally bump or even a fixed number of years to arrive, PVD coating will not appear the same as the water wheel plating peel look.

PVD plating and electrowinning

   

EW refers to electrolytic deposition, electrolytic dissolution by the current extraction to achieve the purpose of metal or substance, or a substance deposited metal precipitated from the solution purification process, it is important to the hydrometallurgical process, widely used in the metallurgical refining is electrowinning method and displacement method.
PVD is a physical vapor deposition, PVD technology as the most popular goods of vacuum coating and plating method, a PVD coating process is typically maintained at a temperature between 250-500, according to the actual needs of the specific needs of the product and film process, can be less than 100 can also be higher than 600 degrees Celsius.
General product types plated coating system TiN, TiC, TiCN, TiAlN, TiAlCN, TiCrN, TiCrCN, TiAlCrN, TiALYN more. Film thickness 2 ~ 5um, may also be thinned thickened.
PVD process
Physical plating plating plating into the water, the water is ever popular plating coating methods, the pollution, now gradually being physically plating (ie vacuum plating) replaced, there are many types of plating: hanging plating, barrel plating, plating, continuous plating, etc., depending on the plated items.