Coating equipment vacuum flapper valve principle and scope

Coating equipment vacuum flapper valve principle, the use of: works vacuum flapper valve is the valve plate seal is achieved through the stem up and down movement. Driven movement of the spindle with a manual transmission parts, two flashlights, pneumatic three ways. Manual transmission parts to the main thread structure can also be used flat cam structure.

Dual manual transmission components, executed by electric, worm, worm component, and equipped with limit switches. , When the power is turned on, the motor in one direction (eg opening direction) by rotating worm, worm drive for the upward movement of the stem of the valve plate rises when the valve plate rise to a certain height, the trip switch automatically cut off power, stem movement stopped immediately, and vice versa. Manual, release the hand wheel back hat, hand in a certain direction to turn the hand wheel, Figure 3 GDD-type hand-in dual vacuum flapper valve outline drawing. Pneumatic transmission parts to compress air for thousands of operating power to change the direction of the gas path through the solenoid valve, push the cylinder piston moves up and down, up and down movement to drive the valve stem, the valve plate open and close, so as to achieve the purpose of turning or stopping the flow.

Vacuum flapper valve has a high vacuum and ultra-high vacuum flapper valve flapper valve two kinds. High vacuum flapper valve for high vacuum system is turned on or off airflow. Pressure range: When the rubber seal for 105 ~ 1.3 × 10-4Pa; when the bellows seal structure 105 ~ 1.3 × 10-5Pa. Working Medium temperature: -25 ~ 80 ℃ (nitrile rubber seals); - 30 ~ 150 ℃ (fluorine rubber seals). Body material: nickel-plated carbon steel or stainless steel; T- valve plate sealing material nitrile rubber or Viton. Ultra-high vacuum flapper valve for ultra-high vacuum system is turned on or off airflow. Applicable pressure range of 105 ~ 1.3 × 10-8Pa such as the valve open state, the baking temperature is less than 400 ℃, the body made of stainless steel; valve plate material for oxygen-free copper; seal at the seal material is stainless steel bellows. : Both the working medium vacuum flapper valve used for clean air or clean the valve non-corrosive gases. Not applicable long-term use in highly corrosive to metals offerings and dust particles containing state gas situation.

Because of the high vacuum flapper valve seal reliable, high conductance, good security and a manual, electric, gas control, etc., in various forms, complete specifications, Path to 150 ~ 120mm, reasonable structure, therefore, be widely used in large, medium-sized vacuum system into a variety of high vacuum apparatus, such as for vacuum coating apparatus, a vacuum heat treatment furnace, vacuum brazing, high-vacuum electron beam welding, ion beam etching equipment, space equipment.

Vacuum coating machine pressure solenoid valve helium leak detection system

           

Leak vacuum coating machine high pressure solenoid valve, such as gas stations or hydrogen for industrial gases used in the tunnel for the high-pressure solenoid valve products for leak detection rate is a very challenging task. To ensure that hydrogen does not overflow valve, which requires a very low leakage rate to test the product, or its leak rate greater than 1 × 10-6 mbar l / sec. After comparison test: The leak rate range than we see bubbling escaped from the water leakage rate of air (in the water naked eye is approximately equal to the maximum air foam 10-3 mbar l / sec) but also much lower.

Leak detection systems customized technical requirements of the road:

1, the pressure valve between 0.5 ~ 360 bar. All tests required to complete in the fully automated environment.

2, sustainable and free choice test to measure gas concentration test gas recovery system. Technical Requirements Background: If a valve is filled with helium, the helium is then continuously charged will be reduced. About 180 liters of helium in a pressure 360 bar and an internal valve capacity of 0.5 liters a round robin test system is released. As the gas production process is complicated and cost, helium is an expensive test gas. Test gas recovery system can bring more benefit from the economic and ecological aspects. Recycling and utilization can reach more than 95%.

3, in order to ensure that the test pressure of 360 bar or more in the calibration and to avoid any possible pressure peaks, it is necessary to develop a pressure up to 500 bar high pressure comparison system, which buffer vessel a test gas requires special storage means, in order to gradually release the downward gas.

4, will also need an additional function valve testing system: nitrogen pressure 100bar over when the pressure from the valve can flow into the atmosphere. This process flow will reach 2.5 times the speed of sound, the result is a tremendous noise, which must require a special silencer.

Vacuum coating equipment coating advantages and characteristics

                           

Vacuum coating technology where the performance advantage? Vacuum coating technology in the most extensive plastic products, vacuum coating factory, said molded plastic with easy, low cost, light weight, corrosion and other characteristics, widely used in plastic products, but because of the shortcomings restrict the expansion of applications. Through the application of vacuum coating technology, the plastic surface metallization, the organic and inorganic materials combine to greatly enhance its physical and chemical properties. Vacuum coating technology advantages mainly in the following aspects:

1, the plastic surface conductivity;

2, easy to clean, no dust.

3, to improve the appearance, surface smoothness, color of metallic luster, the decorative greatly improved;

4, to reduce water absorption, coatings more times, pinhole, the less water absorption decreases, products easy to deformation, improved heat resistance;

5, to improve the surface hardness, the original plastic surface soft and vulnerable than the metal by vacuum coating technology, greatly increase the hardness and wear resistance;

6, the weather resistance can be improved, generally plastic outdoor aging will very fast, mainly due to ultraviolet radiation, and after the aluminum, the UV-reflecting aluminum on the strongest, so the weather resistance greatly improved.

What is coating

     

What is the vacuum coating, depending on the device, select a different process temperature, corrosion, abrasion coating materials, due to the product in the sun burst shooting, the product temperature is high and the demand for some products have certain characteristics, it is necessary to improve the coating the film properties, specificity special as follows:

Coating Tools required: Coater (coating equipment).

Coating Material: metal (silicon, gold, silver, copper, zinc, alloys, titanium, lead), plastic,

Resin, semiconductors, oxides, and other dielectrics.

Coating Coverage: single-sided, double-sided, multi-faceted and comprehensive.

Coating Size: tool coating film 2-15um, decorative film 0.3-3um, feature film 0.01-0.9um.

Coating Environment: vacuum (low vacuum, high vacuum, ultimate vacuum).

Coating performance: sub decorative films and feature films, adhesion, film quality associated with the coating machine performance.

Our customized according to the needs of a variety of coating equipment such as:

Magnetron sputtering: DC magnetron sputtering, intermediate frequency magnetron sputtering, and linear ionization source and pulse bias alloy thin film coating system, in line with the film, multilayer films, metallic and non-metallic coatings and other films.

Evaporation: low vacuum evaporation, high vacuum evaporation, coating system glossy, matte surface (all dumb, semi-matte), drawing, raindrops, wrinkles, etc., ABS \ PS \ PC \ PVC \ TPU \ Metal \ glass \ nylon and other coating materials.

Ion plating: carrying amount, large parts, decorative film, hard film, single, multi-layer, composite, metal and non-metallic materials and so on.

Products can be used for hardware, decoration, furniture, automotive, aerospace, medical and other industries almost all kinds of industrial coatings. The company's product quality, reasonable price: materials, specifications, power, etc. can be customized according to the specific requirements of customers.

Product prices according to the actual situation of the customer's needs, the required specifications, processes, materials, etc. be quoted, please notice.