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.

PVD Vacuum Coating Deposition-Thermal Evaporation Coating Equipments

  PVD vacuum coating deposition techniques have magnetron sputtering, cathodic arc ion plating, reactive ion plating reaction. Because gas turbine blade in working condition thermal shock, corrosion coating and thermal structure of the force between the blade base is very important. Usually in order to improve the bonding strength of the coating and the substrate, prior to deposition of the multi-leaf is preheated, heat-treated after deposition. Heating temperature control at about 950 ℃, heating time around 2h. Cathodic arc ion plating deposition MCrAIY hot corrosion coating on a gas turbine blade coating machine level, target tubular MCrAIY alloys. Post-deposition heat treatment, a long production cycle. There is also a small arc source arc ion plating after adding high-temperature diffusion, and achieved certain results.
  An arc Ion vacuum coating equipment - plating process can be achieved combining step, both the diffusion layer can be obtained, they can obtain a dense thermal corrosion properties of the  vacuum coating. Process is as follows:
 Ion - plating. Leaf base - Ni-base alloy CH220; infiltration - Plating - using CoCrAITaY target.
(1) alloying. Bias: 850 ~ 1000V; temperature: about 920 ℃, with photoelectric pyrometer temperature; holding time: 20min.
(2) obtain deposits. Bias voltage: 200V, 250V, 300V; Temperature: were 600 ℃, 700 ℃, 800 ℃; deposition time: 150min.
 Arc Ion - plating deposition coating 30μm CoCrAITaY the time of 3h, and the total time of magnetron sputtering coating 50μm for 8h. Wherein a considerable amount of time to preheat and post-processing.

PVD Vacuum Coating Technology Introduction

   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. PVD coating and PVD coating machine - PVD (physical vapor deposition) coating technology is mainly divided into three categories, (with ion plating​, magnetron sputtering and evaporation plating)PVD Vacuum coating machine can metallise different metal color on the surface of products.
  Vacuum coating application:Main coating color: black titanium gold, rose gold, champagne gold, France, magic color, sapphire blue, brown, bronze, titanium, PVD, gun color, purple coating main products: stainless steel furniture, display racks, stainless steel engineering products, locks, handles, handicraft, RIGS for automobile, lighting, golf first class.

Leadingcoating structural principle PVD coating vacuum system

 

  Film coatin​g machine as the name suggests is to achieve substrate by PVD coating technology machines use a vacuum environment, Leadingcoating a manufacturing vacuum PVD vacuum coating equipment manufacturers, equipment has the following advantages: (1) with excellent adhesion. 2 high oxidation resistance, high hardness, high wear resistance. 3 is generated in large quantities. 4 does not limit the shape and size. 5 others on request.
  PVD equipment considerations: First, boot first check the flow of water to determine the cooling towers, vacuum pump is working properly, check the gas line is smooth, determine the compressor is working properly. Second, to determine the membrane material in the vacuum chamber, the ion source filament, the workpiece holder is placed as required. Third, after the process is completed to close the electron gun and ion sources, such as switches, to be vacuum coating equipment cooling disappears before turning off the power. Four, can not shop without permission electrical cabinets, vacuum chamber PSD.
  Arrangement PVD coating body determines the overall structure of the PVD coating. Intake and exhaust ports horizontal vertical structure set PVD coating, PVD coating assembly and connecting pipes are more convenient. However, a higher center of gravity PVD coating, PVD coating poor stability at high speeds, so this type are used for small PVD coating. Sometimes in order to facilitate the installation and connection pipe vacuum system can be PVD coating vent pick out from the horizontal direction, that the intake and exhaust direction is perpendicular to each other.
  PVD coating can vent openings from the left or the right in both directions, PVD coating in addition to the exhaust pipe connected to one end, the other end of the bypass valve blocked or access. This PVD coating structure low center of gravity, good stability at high speeds. Generally large and medium-sized multi-use this PVD coating drive shaft coupling and motor coupling through. PVD coating has the following two main structural arrangement on the drive: one is the motor and gear on the same side of the rotor as shown. PVD coating rotor driven directly by the motor side gear drive transmission in the past, such a small rotor shaft torsional deformation of the initiative, the gap between the two rotors will not reverse the drive shaft of the large deformation and change, PVD coating it makes between the rotor the gap is even during operation.