Posted on Wed, 21 Feb 2024 07:18:09 +0000
01 Helium mass spectrometer leak detector of principle A helium mass spectrometer leak detector is an instrument commonly used to detect small leaks in vacuum systems or sealed systems. The principle is based on the low permeability and high sensitivity of helium. The gas mixed with the leaked he...
Read MorePosted on Tue, 09 Jan 2024 08:00:53 +0000
The top packaging of EVP company’s large vacuum pump(such as liquid ring vacuum pump, roots vacuum pumps, rotary piston vacuum pump, etc.) adopts the form of self-tapping screws, which is very conducive to the user or dealer to open the box, and the export goods using this screw is also convenien...
Read MorePosted on Fri, 01 Dec 2023 08:37:36 +0000
1.What is electron beam welding? Electron beam welding is a type of fusion welding that uses a concentrated high-speed electron beam to bombard the joints of the workpiece to generate heat energy to fuse the metal. 2.Basic principles of electron beam welding Under vacuum conditions, electrons esc...
Read MorePosted on Mon, 30 Oct 2023 01:41:35 +0000
When they first learn about or come into contact with the vacuum coating machine industry, many people are curious as to why the evaporation vacuum coating equipment must evaporate materials in a vacuum state, and the vacuum plating must meet certain standards. I will introduce it to you in detai...
Read MorePosted on Wed, 25 Oct 2023 01:39:40 +0000
The main influencing factors of target working stability in vacuum coating: Material selection: Different applications require different types of target materials, such as metals, ceramics, semiconductors, etc. The target material must have sufficient heat resistance and chemical stability to mai...
Read MorePosted on Thu, 31 Aug 2023 05:43:41 +0000
The temperature change during the compression of gas in the cavity of a screw pump is very small, which can be considered as isothermal compression, so it can pump flammable and explosive gases. If the medium contains particulate matter, a filter like the one shown in the figure below can also be...
Read MorePosted on Wed, 26 Jul 2023 05:53:51 +0000
The vacuum angle valve is sealed by the valve plate moving up and down through the valve stem. The drive components that drive the stem have three ways of manual, manual and electric, pneumatic and so on. Manual transmission components, mainly threaded structure, flat cam structure can also be us...
Read MorePosted on Thu, 20 Jul 2023 07:26:27 +0000
It can be seen from the description of the vacuum pump that there are many measures to improve the performance of the vacuum pump. This article only lists several typical methods in the application process. Regarding the method of improving the performance of the vacuum pump in terms of design, s...
Read MorePosted on Mon, 17 Jul 2023 06:23:47 +0000
In the field of food preservation, scientific advances have paved the way for innovative technologies that preserve the natural flavor, nutrients and mouthfeel of a wide variety of products. Vacuum freeze drying is one such popular technique. Vacuum freeze dryers, also known as freeze dryers, off...
Read MorePosted on Fri, 09 Jun 2023 01:48:54 +0000
The FJ-300 molecular pump unit is a vacuum obtaining product assembled by a compound molecular pump, a backing pump, an ultra-high vacuum baffle valve, a vacuum measurement system and stainless steel pipelines, and is used to obtain high vacuum and ultra-high vacuum working environments. , and de...
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