The principle of vacuum coating vendors would explain PVD coating technology

                       

1, PVD is English Physical Vapor Deposition, in Chinese means "Physical Vapor Deposition", is refers to under the condition of vacuum, use Physical method to make material preparation technology of thin film deposited on the plated workpiece.
2. The PVD coating and PVD coating machine
PVD (physical vapor deposition) coating technology is mainly divided into three categories, vacuum evaporation coating, vacuum sputtering plating and vacuum ion plating. Corresponding to the three categories of PVD technology, the corresponding also have vacuum evaporation coating machine for vacuum coating equipment, vacuum sputtering coating machine and vacuum ion coating machine of the three. For nearly 10 years, the development of the vacuum ion plating technology is the fastest, it has become one of today's most advanced surface treatment method. We usually say of PVD coating, is refers to the vacuum ion plating; Commonly referred to as PVD coating machine, namely vacuum ion coating machine.
3. PVD coating, ion plating technology, its particular principle is under the condition of vacuum, with low voltage, high current arc discharge technology, by use of gas discharge from target material evaporation and evaporation occurs matter and gas ionization, using electric field acceleration, cause the evaporation material and the reaction product deposition on the workpiece.
4. The characteristics of PVD coating membrane layer, use the PVD coating technology of plating layer, high hardness, high wear resistance, low coefficient of friction), good corrosion resistance and chemical stability, etc, membrane layer of longer life; Membrane layer can greatly improve the appearance of artifacts decorative performance.
5. PVD coating can plating film types, PVD coating technology is a kind of can really get the micron grade coating and pollution-free environment-friendly surface treatment method, it can prepare all kinds of single metal film (such as aluminum, titanium, zirconium, chromium, etc.), nitride film (TiN, ZrN, CrN, TiAlN) and carbide film (TiC, TiCN), and the oxide film (such as TiO, etc.).
6, PVD coating film thickness, PVD coating layer thickness of micron grade, thickness of the thinner, the average of 0.3 mu m ~ 5 microns, the decorative coating membrane layer thickness is commonly 0.3 mu m ~ 1 mu m, so it can be almost does not affect the original size of the workpiece raise all kinds of physical properties and chemical properties on the surface of the workpiece, need not again after plating processing.
7, PVD coating can plating film color kinds of PVD coating is able to make the color of the film has a deep golden yellow, pale yellow, brown, tan, gray, black, colored, seven color, etc. By controlling the deposition in the process of relevant parameters, can control the plating color; Coating can be used after the relevant instruments to measure color, to quantify the color, to make sure the plating color whether meet the requirements.
8, PVD coating with the traditional chemical plating electroplating (water) the similarities and differences of PVD coating with the traditional chemical plating is the same, both belongs to the category of the surface treatment, and through certain way makes a material covered on the surface of another material. The difference is: PVD coating film layer and the adhesion strength of the workpiece surface is bigger, membrane layer's hardness is higher, better wear resistance and corrosion resistance, the performance of the film is more stable; PVD coating does not produce toxic or contaminated material.
9. PVD coating technology at present the main application of the industry, the application of PVD coating technology are divided into two categories: decorative coating and coated tools. The purpose of decorative plating is aimed to improve the appearance of the artifact decoration properties and color at the same time make more wear-resisting corrosion resistance to prolong the service life of the workpiece; The main application hardware industry fields, such as doors and Windows hardware, locks, bathroom hardware, etc. Tool for the purpose of the plating is mainly in order to improve the surface hardness and wear resistance, reduce the friction coefficient of surface, improve the service life of the workpiece; This is mainly used in all kinds of knife cut, turning tools, such as turning tool, cutter, milling cutter, drill, etc.), all kinds of hardware tools (such as screwdrivers, pliers, etc.), various kinds of mold and other products. :
10. The main characteristic of PVD coating, ion plating technology and advantages - compared with vacuum evaporation coating vacuum sputtering coating, PVD ion coating has the following advantages:
1. The film layer and binding force on the surface of the workpiece is strong, more durable and wear-resisting
2. Ion diffraction performance is good, can plating complex shape workpiece 0 v + R0 S4
3. The film deposition rate is fast, high efficiency 4. To the coating layer type 5. A comprehensive membrane layer, stable performance, high safety (obtained FDA certification, can be implanted in the body)