The Critical Role of EVP Vacuum Pumps in Optical Coating PVD Applications

Posted on Wed, 15 Oct 2025 03:33:27 +0000

In modern optical manufacturing, Physical Vapor Deposition (PVD) is widely used for the production of optical thin films on components such as lenses, filters, and laser elements. As an integral part of PVD systems, the performance of vacuum pumps directly impacts coating quality, production effi...

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Liquid Ring Vacuum Pumps in the Production of MDI

Posted on Wed, 01 Oct 2025 06:14:05 +0000

Liquid ring vacuum pumps play a vital role in the production of MDI (methylene diphenyl diisocyanate), but their application differs from the direct removal of by-products in the esterification reaction. In MDI production, the core role of liquid ring vacuum pumps is to provide a safe, stable, an...

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Gas Transport and Recovery

Posted on Mon, 22 Sep 2025 01:55:16 +0000

Technical Principles Liquid ring vacuum pumps/compressors consist of an eccentrically mounted rotor inside a casing partially filled with a seal liquid (usually water or compatible fluid). As the rotor spins, its blades are immersed in the liquid, and the centrifugal force creates a stable liquid...

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Application of Liquid Ring Pumps in Vacuum Filtration/Compression Filtration

Posted on Tue, 02 Sep 2025 01:45:58 +0000

Liquid ring pumps play a key role in vacuum filtration and compression filtration. Their core advantages lie in their strong resistance to contamination and their ability to handle moisture and corrosive gases. They are particularly suitable for filtration processes where liquids or particles are...

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Application of EVP DLV series Liquid Ring Vacuum Pumps in Clay Industry

Posted on Fri, 22 Aug 2025 08:35:02 +0000

With the continuous development of the ceramics, sculpture, and clay product industries, the requirements for production efficiency and product quality are increasing. Vacuum degassing, as a core process in clay preparation, places higher demands on the performance, stability, and adaptability of...

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Selection of Vacuum Pumps in the PVD Industry

Posted on Tue, 19 Aug 2025 03:03:15 +0000

PVD (Physical Vapor Deposition) is a technology that, in a vacuum environment, vaporizes solid materials through physical methods (such as evaporation, sputtering, ion plating, etc.) and deposits them on the surface of a substrate to form a thin film. 1.Principles  Material Vaporization: Solid ta...

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What is the typical wall thickness of a vacuum chamber

Posted on Tue, 27 Aug 2024 01:16:24 +0000

In fact, there is no fixed standard value for the wall thickness of a vacuum chamber, but it is determined based on various factors. Pressure: The pressure that a vacuum chamber can withstand is one of the important factors determining its wall thickness. In high-pressure environments, it is nece...

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High vacuum coating equipment environmental requirements

Posted on Fri, 12 May 2023 02:12:31 +0000

Since high vacuum coating equipment works under vacuum conditions, the equipment must meet the requirements of vacuum for the environment. The industry standards for various types of vacuum coating equipment formulated (including general technical conditions for vacuum coating equipment, vacuum i...

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Inlet filters of EVP piston pumps

Posted on Tue, 09 May 2023 06:22:45 +0000

1.Body Material and conditions of use: 1.High-strength carbon steel shell, surface spray treatment; 2.Applicable temperature: ≤100℃; 3.Overall leak rate: ≤1*10^-3 Pa.L/s; 2.Filter element(core) material and use conditions: Maintenance and replacement of filter element: replace the filter elemen...

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oil-type rotary vane vacuum pump of maintenance

Posted on Fri, 14 Apr 2023 05:38:25 +0000

Oil-type rotary vane vacuum pump is a very mature and reliable vacuum pump, usually also called oil pump, mechanical pump, rotary vane pump, etc. It is low-cost and can achieve a good vacuum degree. It is widely used in vacuum packaging machines, vacuum heat treatment, coating, Mass spectrometers...

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Vacuum Furnace Cnc Lathe, Sawing Machine