Introduction and vacuum coating materials for evaporation source requirements

Introduction and vacuum coating materials for evaporation source requirements

A vacuum coating technique to produce a thin film material. In atomic vacuum chamber material is isolated from the heating source to hit the surface of the object to be plated. The technology used in the production of aluminum coated CD (compact disc) and by a mask on a printed circuit board metallized film.
Evaporation source in vacuum coating material requirements?
Evaporation source should typically be considered material and shape of the evaporation source, the evaporation source material for general requirements are:
(1) a high melting point. Because the evaporation temperature of the evaporation material (equilibrium vapor pressure for the temperature 1.3Pa) Most between 1000 ~ 2000 ℃, therefore, the melting point of the evaporation source material should be higher than this temperature.
(2) equilibrium vapor pressure. This is mainly to prevent or reduce the evaporation source material at a high temperature with an evaporation material is evaporated into the impurity into the deposited film layer. Only in equilibrium pressure of the evaporation source material is sufficiently low, in order to ensure self-evaporation has the smallest amount of evaporation, so as not to affect the vacuum system and contamination layer, the evaporation source materials in order to make a very small quantity of evaporated, and evaporated in selection temperature, while the evaporation source material, should be lower than the evaporation temperature of the material in the evaporation source material for the preparation of equilibrium pressure of 1.3 × 10-6Pa when high quality film can be used with the corresponding temperature are 1.3 × 10-3Pa.
(3) Stable chemical properties and should not chemically react with the evaporation material at high temperatures. At high temperatures may produce between some evaporation source material, and evaporation of the reaction and diffusion material to form compounds and alloys. In particular, the formation of a eutectic alloy evaporation source easily blown. For example, when a high temperature tantalum and gold may form an alloy, aluminum, iron, nickel, cobalt and also tungsten, molybdenum, tantalum alloy evaporation source material. Tungsten can also react with water or oxygen to form volatile oxides such as WO, WO2 or WO3; molybdenum can react with water or oxygen to form volatile MoO3 and the like. Therefore, the material should be selected with the coating material does not react or form an alloy made of the material of the evaporation source material

The advantages of sputtering coating film

The advantages of sputtering coating film

Sputtering vacuum coating method, because of its different coating methods, the effect of the same film coating material prepared will be different, although the naked eye can not see it, but it does have certain advantages.
Film thickness, good stability, due to the sputtering target film thickness and discharge currents have a great relationship, the higher the current, the greater the sputtering eff...iciency, within the same time, the thickness of the coating layer is relatively big, as long as the current value of a good control, you need more than a thick plating, or more thin layers can be, of course, this thickness is within the allowable range, and control the current, regardless of how many times repeated plating, the film thickness is not will change the thickness of the film thickness can be attributed to the stability of good controllability and repeatability.
Film with strong, during the sputtering process, some electrons strike the substrate surface, and activating the surface atoms, and produce clean effect, the energy energy-plated material obtained by sputtering evaporation obtained higher than 1 when the two orders of magnitude, such a plating material having a high atomic impact energy to the substrate surface, more energy can be transferred to a substrate, produce more heat, so that the activation of atoms by electrons accelerated motion, and the part plated metal atom earlier fused together with each other, other plating material atom tight with successively deposited film, strengthening the binding force of the film and the substrate.
A wide range of plating material, due to sputtering by argon ion bombardment makes high speed plating material sputtered out, unlike Evaporation and restrictions due to the melting point of only using a relatively low melting point metal plating, sputtering and almost all the solid material can become coated material.
You can see from the above points Sputtering is indeed better than the evaporation vacuum coating effect, a different principle determines the thickness of the film is more stable sputtering, combined with stronger, broader-plated material.

Why do vacuum coating machine regular cleaning?

Why do vacuum coating machine regular cleaning?

Vacuum coating machine used for periodic cleaning of the after time is long, a lot of people will ask why? It is not often clean can appear what problem? Let's analyze.
Used in vacuum coating machine prior to coating, coating materials for coating materials to do simple surface clean can prolong the service life of coating machine, because of various pollutants not only cannot obtain the required degree of vacuum, vacuum system can also affect the joint strength and sealing performance of vacuum components.
Common pollutant of vacuum coating machine are:
1. The oil include the processing, assembling and operating with the lubricant, cutting fluid, vacuum oil, etc.;
2. The operation time of hand sweat, blowing time of water vapor and saliva, etc. Acid, alkali, salt substance when cleaning the residual, hand sweat, mineral water, etc.; And polishing residue and environmental dust in the air and other organisms.
Cleaning is the purpose of these contaminants in order to improve the vacuum coating machine work stability, can make the job more smoothly.

The principle of vacuum coating vendors would explain PVD coating technology

The principle of vacuum coating vendors would explain PVD coating technology

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.
1, PVD coating membrane layer 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.
2, 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.
3, 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.
4. 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. :
5. 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)

Film, thin film coating on the vacuum introduction

Film, thin film coating on the vacuum introduction

Film: the film can be considered a two-dimensional material. In the strict academic sense, that only aggregate thickness is less than the thickness of the material characteristics of a real film, otherwise it is generally thin material. Characterized thickness: is the nature of the use of certain basic materials phenomenon will occur abnormal changes in the case of thin material thickness aggregation determined, i.e., when selected for a physical or mechanical properties different from the reference beginning to show it typically has a thickness characteristics when, is characterized in substance to the film thickness.

The main properties of the film：

Thickness: The more uniform the better, should generally be controlled within a range, such as 5, which is about the size of the workpiece coating system

Film surface morphology: transmission electron microscope by scanning electron microscopy (SEM) (TEM) analysis showed the like particle state, the availability of dense film surface, defect status, the annealing treatment on the membrane surface and other information.

Membrane organization features: X-ray diffraction analysis of the composition of the film, and other information available to the purity of the film. Film stress: the smaller the better films of internal stress, the internal pressure of the annealing process can maximize the release of the film.

Characteristics of the film and the substrate contact: mainly refers to the adhesion between the film and the substrate, of course, the stronger the better adhesion, the film appears to avoid missing the open and so on.

Dense membrane: mainly refers to film hardness and abrasion resistance, to avoid the open circuit external scratches caused.

Chemistry membrane, thermal stability: the requirements for the metal film layer of the metal film layer prepared resistivity as low as possible, close to the bulk resistivity.

Film analysis commonly used methods:

Scanning electron microscopy SEM analyzes 10nm resolution is generally more than surface information, sample preparation simple.

Transmission electron microscopy TEM analyzes structural information, resolution of less than 1 atom, sample preparation difficult.

XRD analysis of the structure is the information, but can not analyze micro-structure information for the film, XRD given direction, SEM choose a good area, TEM-depth analysis, which is a combination of boxing.

Vacuum coating machine structure is what kind of?

Vacuum coating machine structure is what kind of?

Vacuum coating machine structure is what kind of? Vacuum coating machine is now a coating use most products under vacuum conditions in a device, a complete vacuum coating machine is made up of many parts of the system, each system can complete different function, so as to realize the high quality of the final coating, its composition, including vacuum cavity, mechanical pump, vacuum test system, oil diffusion pump, vacuum system, the cooling pump and film control system and so on.
Vacuum coating machine's body is a vacuum chamber, vacuum cavity size is determined by the processed products, it can custom, the size of the cavity is usually made of stainless steel material, sturdy no rust, etc. Vacuum chamber, there are many connection valve is used to connect all kinds of auxiliary pump.
Vacuum system adopts mechanical pump + diffusion pump, roots pump, vacuum system of the vacuum coating machine system is an important part of vacuum degree directly affect the product, the coating effect of vacuum degree by vacuum test system to obtain the data.
Film forming control system can adopt different ways, such as fixed plating time, visual, acme monitoring and crystal oscillation monitoring, etc. Coating method is a variety of craft, commonly used in ion evaporation deposition and magnetron sputtering deposition. Magnetron sputtering method made of plated film adhesion, membrane layer of high purity, can colleagues sputtering a variety of different composition of the material, ion evaporation coating can improve the compactness of film and binding force and uniformity.

Physical vapor deposition coating several main power supply

Physical vapor deposition coating several main power supply

In the PVD coating technology used in the power source is varied, mainly include evaporation power, gun power, hollow cathode arc power supply, power supply, magnetron sputtering target power, heating power, bias power supply, etc. Mainly introduces the arc power supply, bias power supply and the characteristics of the magnetron sputtering target power.
Arc power source, arc ion plating, the realization of the target material evaporation and ionization must depend on arc power source to provide energy, in the actual process of coating, the power supply can automatically detect arcing phenomenon and automatic arc, ensure continuity and uniformity of the film coating process. In addition, the arc stability of arc power supply performance had a great influence on the performance of the film. Electric power supply is stable and reliable work is essential to the performance of the equipment. Arc power source has magnetic saturation amplifier type, thyristor, transistor switch type and high frequency inverter.
Bias power: it is mainly used for multi arc ion plating and magnetron sputtering deposition glow in the process of cleaning and ion bombardment and coating on the plating workpiece exert negative voltage. Glow when cleaning, vacuum chamber filled with argon gas, it produces glow; Ion bombardment is used to accelerate ions, improve the energy of the ion bombardment workpiece surface, enhance sputtering cleaning effect and increase the film adhesion; When coating, which is used to increase the ion energy, speed up the reaction deposition rate and improve the thin film growth, increase the film adhesion. As a result of the magnetron sputtering ionization rate is far lower than the multi arc ion plating, bias power supply the power needed to be smaller. But there are many coating machine is equipped with magnetron sputtering target, and also equipped with arc more target, selection bias power, to work in multi arc ion plating when asked to choose.
Target power magnetron sputtering ion plating: mainly used to provide electricity for magnetron sputtering target. It has a dc, single pulse, symmetrical bipolar pulse and double jacaranda pulse several forms.

Vacuum coating machine vacuum measurement of non-uniform environment

Vacuum coating machine vacuum measurement of non-uniform environment

Vacuum coating machines, vacuum coating machines in practical systems, there is a source to pump gas from the air, and some of these air flow through the drain hole injection, but also some flow effects caused due to various outlet. Not only can a variety of vacuum pumping gas, and vacuum gauge and clean surfaces also have the role of adsorbed gas. Therefore, the actual vacuum system is generally non-uniform airflow distribution. The gas flows through the tubular conduit pipe bunching will be led into the container flow distribution is more uniform. Rarefied air flow vacuum system affects the non-uniform distribution, has been the subject of detailed study in recent years, and these findings are also promoting the development of accurate measurement of gas pressure technology.
In general, we discuss pressure measurement, virtually has assumed two conditions:
① In an envelope, independent of their density and air flow direction and position of the unit solid angle, in a given spatial point there is only one pressure, the pressure independent of the pressure at this point in the regulation of the orientation. That airflow isotropic Yun assumptions.
② is in all parts of the system at the same temperature, the gas pressure means that the referenced pressure this temperature, i.e. an isothermal assumption.

Will the vacuum coating plated golf head-related issues

Will the vacuum coating plated golf head-related issues
                            

A few days ago a friend advice, how to golf head coating. I have been engaged in vacuum coating glass lenses, would like to ask

A golf club heads are irregularly shaped, how to film? Is the card is placed on the coated umbrella? Hanging plating line to see again, I ask how plating rack.

2. The company's general manager, said their processes after plating and vacuum coating, plating, after I ask again what plated vacuum coating film, what role?

1 rack with hanging rod ball head fixed on it, the use of the public switched turn the turret of a method.

2, after the first plating and vacuum coating plated I think should be the first water and then plated vacuum plating, can greatly improve the thickness of the film, but not very good wear resistance.

Golf equipment vacuum coating machine uses frequency magnetron sputtering technique, sputtering gradually become a mainstream technology, our company developed a planar target, the target cylinder, twin target, target other forms of MF sputtering target structure and layout. Such equipment is widely used in the case, strap, mobile phone shell, golf equipment, hardware, cutlery and other plated TiN, TiC, TICN, TiAIN, CrN and other decorative coatings.

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.

Our company is committed to the development and production of vacuum coating machines, vacuum coating equipment widely used in automotive, glass, plastics, electronics, watches, metal industries, products are widely sold worldwide, to provide customers with customized technology solutions and vacuum coating equipment.

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.

The use of materials and vacuum ion vacuum coating machine

           

 Vacuum material used in many areas, and in fact the vacuum is just a relative concept, and vacuum material is relative to a particular aspect to have the isolation effect. So called vacuum material, as used in this kind of material to the surface coating machinery, vacuum coating machine is undoubtedly one of the representative of a device. So here is to introduce the vacuum coating equipment.
Now type is many, including the vacuum evaporation, multi arc ion sputtering and so on, these technologies are using the current electricity helps to form the main coating process, and the formation of a mechanical processing, in fact, that the vacuum coating technology to form the automated processing. Take many of them arc ion coating machine, for instance, this is a kind of using electromagnetic utility as well as the effect of ion sputtering and produce the equipment, it has the effect of vacuum coating. In many cases, we see the surface smooth and shiny cars, are due to the magnetron sputtering coating machine for processing after forming, so the effect of vacuum coating machine is very big, the metal products or crystal materials manufactured products are adopted the way of vacuum coating processing.

Vacuum coating function to improve the quality of our life?

                         

 Vacuum coating function to improve the quality of our life? Vacuum coating machine is also called the coating machine, its appearance and quality of gradually enhanced, so that our daily life in contact with the supplies were abnormal elegant decoration, beautiful enjoyment on the vision, so our life become more and more cannot from the vacuum coating machine. Then someone will ask: are we's life is really then leave the vacuum coating machine?
Now it's time to start, for example, such as in our lives is often used to drying rack. Inside the house before the clotheshorse is jinsu processing, which is outside the wire bread a layer of plastic, avoid wire hangers on rust, improve the durability of the clotheshorse;
But with the emergence of vacuum coating machine, we began to use an evaporative  vacuum coating machine coating processing for the main body of plastic clotheshorse; Also can use multi arc ion coating machine for drying rack hook ion-plating, so made the clotheshorse not only appearance, color colorful and varied, after coating processing of drying rack can also resistant to acid and alkali and antioxidant.
 There are many places cannot leave the vacuum coating machine, small make up now is not, for example, one by one. Anyway want to ensure the quality of our life, do more and more inseparable from the vacuum coating machine.

Multi arc ion pvd vacuum coating machine

  pvd arc ion vacuum coating machine used to make chrome,gold,brown etc coatings on different hardware products, general building hardware, locks, using arc ion plating machine in the sub-products suc.
                 

 Hardwares pvd arc ion vacuum coating machine used to make chrome,gold,brown etc coatings on different hardware products, general building hardware, locks, using arc ion plating machine in the sub-products such as high block strap, case, silver frame, mobile phone shell, golf equipment, Jewelry, etc ,generally use the Arc /MF(+DC) magnetron sputtering composite coating machine, according to loading models use large or small machine,our company has provides more than 10 sets of high deposition chamber diameter 1600*1200mm ,with 10 arc evaporation source,ten pairs of frequency magnetron sputtering target coating machine for high-end mobile phone shell coating production, continuous stable operation over the past year. Such equipment can be plated gold color, rose gold, brown, brown, bronze, blue and other decorative film.