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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The Principle, classification and scope of application of vacuum gauges

Posted on Tue, 14 Mar 2023 01:42:22 +0000

Vacuum gauge of principle and measuring range Vacuum refers to the state of gas below one atmospheric pressure in a given space, which is a physical phenomenon. In vacuum technology, vacuum refers to the atmosphere. Generally, it means that part of the material in a specific space is discharged, ...

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DLV Liquid Ring Vacuum Pump Seal

Posted on Fri, 10 Mar 2023 02:34:57 +0000

EVP DLV liquid ring vacuum pump is a high-performance two-stage vacuum pump, which is updated and adjusted on the basis of the German SIHI LPH series (and Speck VH series) two-stage liquid ring vacuum pump. Compared with the conventional 2SK series two-stage vacuum pump, its performance is more s...

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Calibration method of Vacuum Leak

Posted on Tue, 13 Sep 2022 06:17:35 +0000

In the leak detection work, to quantitatively determine the leak rate of the leak detection hole, it is necessary to correctly transfer the value of the leak rate from the gas microflow standard or the leak rate standard to the mass spectrometer leak detector. In this transfer process, the calibr...

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vacuum pumps of latest market overview

Posted on Thu, 25 Aug 2022 02:14:26 +0000

1.Vacuum pump of overview Vacuum pumps are the main category of vacuum obtaining equipment used to obtain, improve and/or maintain a vacuum environment. A vacuum pump can be defined as a device or device that uses mechanical, physical, and chemical methods to evacuate the pumped container to obta...

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Helium leak detector used in vacuum coating machine leak detection

Posted on Fri, 24 Jun 2022 06:40:49 +0000

When the vacuum coating machine is leaking, when the vacuum inside the coating machine drops to a certain level, such as below 0.5 mbar, spray helium gas on the suspected leak, or check the parts moved during standard maintenance. At this time, it is necessary to Someone observes the change of th...

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Why Plastic powder spray on Acoustic Enclosure of EVP Roots Blower?

Posted on Thu, 21 Jan 2021 05:14:55 +0000

As we all know, even matching with the standard Inlet and exhaust silencers, the noise of Roots blower is always a problem; What is known is that the main structure of acoustic enclosure is its enclosure plates. When the enclosure plates have enough sound insulation, which can block the noise of ...

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Vacuum Pump in Wood Drying

Posted on Tue, 15 Dec 2020 08:09:31 +0000

The amount of moisture in wood varies with tree species, tree age, and cutting season. In order to ensure the quality of wood and wood products and extend the service life, appropriate measures must be taken to reduce the moisture (moisture content) in the wood to a certain level. To reduce the m...

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