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.

PVD coating technology major application industries

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.

Vacuum coating machine color stainless steel ambry coating?

Vacuum coating machine color stainless steel ambry coating?

Colour stainless steel has become a beautiful beautiful in stainless steel series of a bunch of; Professional production of colored stainless steel vacuum DuMoTai gold plate, the color is complete, can be plated gold, champagne gold, black gold, gun black, white, silver, bronze, bronze, rose gold, purple, golden, coffee, golden gem blue, seven color, dark brown, and so on, the titanium material for stainless steel 201202304, etc; On the surface of 8 k, 2 b, BA, wire drawing, No. 3, No. 4. Stainless steel plate, BA board, 8 k mirror plate, titanium plate, grinding plate, etching flower plate, embossed plate, color is rich and varied, colour and lustre is stable, uniform film, strong wear resistance. Ensures decades do not fade, which greatly strengthened the kitchen stainless steel colour profusion and diversity, revitalize your gold match the kitchen the permanent charm and women sweet gentle and comfortable. Vacuum coating machine equipment
Color stainless steel composite plate send polishing lines, coating, etching, sandblasting and other process focused on the same floor are combined process. Then plating color.

Vertical splash control sputtering coating machine equipment?

Vertical splash control sputtering coating machine equipment?

Vertical splash control sputtering coating machine characteristics of the equipment
The vacuum coating machine coating chamber, valves and piping are made of stainless steel vertical, the structure of the single door;
1, fast deposition rate, temperature rise is small, can restrain the lighter and better target poisoning phenomenon;
2, vertical single door sputtering coating machine release of high energy density and the membrane layer adhesion has significantly increased;
3 + PLC, touch screen, which can realize full automatic control, automatic/manual switch at any time.
4, coating chamber volume is large, large loading capacity, high production efficiency.
5, vacuum evaporation coating mechanic structure frame adopts revolution, can set up automatic positive &negative, product uniformity good.
6, the machine configuration is reasonable, the extraction rate is fast, low noise, low consumption.
7, can according to customer requirements to go more than the target source, double door coating machine

Characteristics of Vacuum Ion Coater Coating and Its Application

Characteristics of Vacuum Ion Coater Coating and Its Application

Ion coating machine and evaporation coating machine, sputtering coating machine, compared to the biggest feature is charged ions can bombard the substrate and the film side, while the deposition. The effects of the bombardment of charged ions can be attributed to a series of effects, mainly as follows:
 ① film / base adhesion (adhesion), the film is not easy to fall off. The substrate is cleaned, activated and heated by the ion bombardment of the substrate by sputtering, which removes both the adsorbed gas and contaminants from the substrate surface and the removal of oxides from the substrate surface. The heating and defects of the shovels during ion bombardment can cause the enhanced diffusion effect of the substrate. Not only improve the matrix surface layer of the organization of crystalline properties, but also provides the conditions for the formation of alloy phase. Moreover, higher energy ion bombardment, but also can produce a certain degree of ion implantation and ion beam mixing effect.
 ② ion coating machine as a result of good diffraction. At higher pressures (≧ 1 Pa) ions or molecules of ionized vapors will encounter multiple collisions of gas molecules before reaching the substrate. Therefore, the film material particles can be scattered around the substrate. Thereby improving the coverage of the film. Also, the ionized membrane ions are deposited at any location on the surface of the substrate with a negative voltage under the influence of the power plant. As a result, this is not possible with evaporative plating.
 ③ coating of high quality. As the ion bombardment can improve the density of the membrane to improve the structure of the membrane, making the film uniformity, coating dense, pinholes and bubbles less. As a result, the quality of the film layer is improved.
 ④ deposition rate is high, film speed, can be prepared 30μm thick film.
 ⑤ coating applied to the substrate material and film materials are more extensive. Applicable to metal or non-metallic surface coating of metal, compounds, non-metallic materials, film. Such as iron and steel, nonferrous metals, quartz, ceramics, plastics and other materials surface coating. Since the activity of the plasma is favorable for lowering the synthesis temperature of the compound, various kinds of quarternary compound films can be easily plated by ion plating.

Vacuum coating machine in aluminized plastic appearance advantage?

Vacuum coating machine in aluminized plastic appearance advantage?

Vacuum coating machine in aluminized plastic appearance advantage? Vacuum coating machine is specialized in plastic appearance evaporation plating aluminium of the special equipment, it fast film forming rate, membrane layer of strong, bright color, not easily contaminated membrane layer, plating equipment can get good fine, high purity, uniform film thickness of the membrane layer, no liquid waste, waste water, can prevent the pollution to the environment, is the ambition of mass production equipment.
Vacuum coating machine in the market, the wide application of vacuum coating machine is widely used in the market, the equipment is widely used, mainly have auto reverse optical network, handicrafts, jewelry, shoes and hats, clocks, lamps, decoration and other industries. Mainly by the vacuum chamber, the exhaust system, evaporation system and four some electrical equipment.
Vacuum membrane layer can prevent the contamination of membrane material and plating parts appearance, eliminate space knock against, progress coating of fine and special function of the coating can be a single compound preparation. In order to progress the uniformity of coating thickness, plating with planets in the vacuum chamber organization or rotating equipment, such as a planet form of exercise, exercise in the form of a film uniformity, good coating coverage performance is good, the steps of the bearing can be big, can make full use of useful space of vacuum coating chamber, is a common form of movement. Exhaust system usually consists of mechanical pump, pump, pipes and valves.
In order to progress the flow rate of the pump to increase the supercharger scattered between mechanical pump and pump. Therefore, not only in a relatively short period of time of low pressure to ensure rapid work cycle of the exhaust system, also need to make sure that the gas evaporation source and rapid deposition in the appearance of components removed. Evaporation system contains the electrical equipment and heat source of evaporation source.

Clean the vacuum coating machine

Clean the vacuum coating machine

Before proceeding with the vacuum technology should be vacuum cleaning materials, material surface to remove pollutants from the artifacts or system; Light coating machine parts surface cleaning processing also is very be necessary, because caused by pollutant gas, steam source will not only make the vacuum system cannot obtain the required degree of vacuum. And because of the existence of pollutants at the same t...ime can also affect the strength of the joint vacuum components and sealing performance.
Pollutants can be defined as "any kind of useless matter or energy, multi arc ion coating machine according to the physical state of pollutants can be divided into solid, gas and liquid, they exist in membrane or grain form. The chemical characteristics, it can be in ionic or covalent states, can be inorganic or organic matter.
Exposed to the surface the most vulnerable to pollution in the air, there are many sources of pollution, the original pollution is usually part of the process of forming surface itself. Phenomenon of adsorption, chemical reaction, leaching and drying process, mechanical processing and diffusion and segregation are increase the components of surface contaminants.

PVD coating technology of vacuum coating machine

PVD coating technology of vacuum coating machine

Whenever a new technology appears meant a reshuffle of the industry, but also tend to promote the adjustment of its upstream and downstream industries, indeed affect the whole body. Vacuum coating functions change from even a short time nearly the end of the traditional coating methods, is a historical necessity, the result is the joint efforts of various industry experts.
Vacuum coating technology division multiple classes, but are built in a vacuum coating, PVD (Physical Vapor Deposition) technology coating must have a vacuum chamber, to avoid evaporation out of the reaction material and the air, which is a physical vapor deposition coating technology.
We all know that in the vacuum coating technology, the matrix material from a solid to a gaseous state to adhere to the workpiece to form a thin film layer, PVD coating coating methods because they do not use chemical coating thus environmental pollution, which is respected by PVD technology factors one.

The future development of coating industry must be vacuum coating

The future development of coating industry must be vacuum coating

There are two main types of professional coating methods,one is chemical deposition (CVD), one is physical climate accumulation, also called vacuum deposition (PVD).

Chemical coating is rich in a membrane element of gaseous reaction agent or liquid reaction required for other gas introducing echo chamber, in the process of chemical reaction to generate film substrate appearance attack. In the process of chemical film, simple solution pollution, if the coating appearance more impurities, owe better plating.

Chemical coating demand response temperature is very high, usually to control at 1000 ℃ or more, but many matrix data cannot be influenced by the high temperature, timely and cemented carbide, although can endured high temperature, because of the high temperature in chemical coating manufacturing environment will also constitute a coarse grains,which cause the brittle phase, function deterioration. If on the carbide TiN plating, diffusion of carbon will attack response and solution decarburized layer, the layer patience is poor, low flexural strength, constitute a taking shorten tool use.

Vacuum coating machine dispose of chemical coating attack in a series of questions excellently. Vacuum coating is under the condition of vacuum, choose low voltage, high current arc discharge skills, using gas discharge ability, use other discharge is the transpiration and restore the transpiration of target material and gas ionization, all using the accelerating effect of electric field, the accumulation and reaction products made by transpiration material on the workpiece.

All coating materials are in a vacuum environment after plasma accumulation in the appearance of workpiece, the disposal of the chemical plating solution of pollution question, not toxic or pollutants, plating film hardness higher, good wear resistance and corrosion resistance, more safe. Disposal of vacuum coating technology can control the temperature below 150 ℃ ~ 500 ℃, suitable for a variety of substrate materials, preparation of colorful coating, plating system of carbide cutting tools can make its full progress 2 ~ 10 times.

Vacuum coating machine uneven deposition

Vacuum coating machine uneven deposition
With the development of coating technology, all kinds of vacuum coating machine also gradually appear, either vacuum coating machine, the uniformity of the film will be influenced by some factors. Now, we will by magnetic sputtering vacuum coating machine for the analysis of film forming uneven factor.
Uneven coating machine extraction can affect coating uniformity. Substrate clean is very important. Before making vacuum coating to the substrate surface is clean, achieve the workpiece to the purpose of the oil, decontamination and dehydration. Substrate surface contamination from parts in processing, transportation, etc in the process of all kinds of dirt, grease, polishing paste, perspiration, etc., in damp environment, easy oxidation of substrate surface, the formation of oxide film adsorbed gas. For these dirt, can use to clean oil or chemical methods. Clean substrate don't directly on the outside, the need to use a closed container storage, reduce contamination. Coating deposited indoor is, so to clean coating indoor, baking degassing, and place the machine in a clean environment. Pay attention to the diffusion pump oil. Coating raw materials are many, such as resin, silicone, silicone hydrochloric acid, polymer and so on, auxiliary materials, formulation is different than the column, thin film is also different.
Above is the vacuum coating machine film-forming uneven factor.

Progress in Surface Modification Technology

   

 With the development of scientific and technological progress and the edge of science and technology areas covered surface modification technology "vacuum c​oating" continues to extend and expand. Traditional carburizing, nitriding and other chemical treatment technology has become a fundamental part of surface modification technologies; ion implantation technology, laser and electron beam technology in surface modification of materials, for parts of the surface hardening and surface alloying offers new technology and methods.

(1) Salt Nitrocarburizing technology (TUFFTRIDE QPQ). TUFFTRIDE QPQ process is the part after a simple pre-washed and pre-heated to the air after 350 ~ 400 ℃, the alkali cyanate tank for Nitrocarburizing usually treatment temperature is 580 ℃, maintain 60 ~ 120min, special when the case can be reduced or elevated temperatures. Cold treatment using an oxidation at the cooling tank, at a temperature range of 350 ~ 400 ℃ cooling, followed by hot water jet cleaning of the workpiece. In addition to cooling slowly cooling oxidation, good for dimensionally stable parts, but also has the following advantages:

① significantly improved the corrosion resistance of parts;

② parts of the surface in the base product to produce cyanate tank oxide film;

③ better sliding properties.

(2) ion nitriding "multi-arc ion vacuum coating"gas phase analysis and application. In the plasma nitriding process, in addition to temperature and time, furnace gas composition is an important factor in determining the quality of the nitrided layer. Element N, H ratio changes significantly affect the structure of the compound, and the influence of hardness of the diffusion layer to some extent. In addition, the ion nitrocarburizing process, the compound layer is a dense, e single-phase layer can form, furnace gas composition is a decisive factor. Typically by controlling the furnace atmosphere into the nitriding furnace gas flow rate is set, but the actual flow rates at different points of the same partial pressure of the gas is often quite different, resulting in factors such differences are: from gas means a chemical reaction to occur at gas path characteristic nitriding furnace, the speed of change and the like inflatable gas ions between different conditions and the like.

Vacuum plating equipment vacuum plating process

 

Vacuum plating is different from water plating a new technology, it is relatively environmentally friendly plating technology.

Vacuum plating process including vacuum deposition, sputtering, ion plating and the like.

Vacuum deposition:

Vacuum vapor deposition under vacuum conditions material is heated, the film-forming material is placed in a vacuum evaporating or sublimating, so that one surface of the substrate during the deposition process or a multilayer film.

The principle is that the temperature reaches the evaporation temperature of the coating material, the transfer of the generated steam from the vacuum chamber to condense on the cold part, will not be oxidized in a vacuum environment, be noted that the material for vacuum deposition to take into account melting and boiling points.

Cheap cathode plating:

Cathode base plating also called magnetron sputtering, an inert gas is generated by glow discharge plasma of the metal target atoms blasted deposition process on the substrate, the cathode base plating process requires a degree of vacuum of 1.3 * 10-3Pa . In the cathode target surface orthogonal electromagnetic field, plating base film adhesion than vacuum evaporation, is a high technology vacuum coating technology usage.

Ion Plating:

Ion plating under ion bombardment gas ions or substances deposited on the surface of the substrate method, ion plating is a new invention, the vacuum coating technique, ion plating process, although also in a vacuum chamber to achieve, but the coating process is performed by the charge transfer form, it has a strong penetration, you can enter the required coating system has a very strong base inside adhesion.

Vacuum plating is a physical method, coating is built under a vacuum environment, vacuum plating process is already a mature technology, the industry needs basically coated products can use vacuum coating.

The installation of coating equipment of vacuum system

             

  At present, the application of vacuum coating technology is very broad, and vacuum coating technology is done by means of vacuum coating equipment. In order to meet the requirements of process, you need to obtain a certain vacuum degree, and vacuum need vacuum system implementation. The vacuum system consists of vacuum pumps, filters, condenser, etc. In order to get the satisfactory degree of vacuum, vacuum system during installation need to pay attention to the following questions:
1, maintain vacuum hygiene
Engaged in the vacuum coating workshop environment must keep clean. To avoid put sewage into the system to become air, affect the degree of vacuum, before assembly components and materials, they have to be serious.
2, when installation should adopt the method of extraction and find leakage
When installation, can't take a lot of vacuum components once installed, in case of gas leakage, it would be difficult to find leakage. Want to install one by one, each install a, require extraction and leakage. This can be more save time and convenient installation.
3, installation, should check the rubber sealing box surface of metal parts, there can be no scars.