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...
Read MorePosted 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...
Read MorePosted 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...
Read MorePosted 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...
Read MorePosted 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...
Read MorePosted 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, ...
Read MorePosted 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...
Read MorePosted 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...
Read MorePosted 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...
Read MorePosted 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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