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...

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...

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...

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...

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...

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...

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...

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...

Performance requirements and applications of perflurane FFKM rubber seals Perfluoroether rubber refers to the terpolymer of tetrafluoroethylene, perfluorinated methyl vinyl ether and perfluoroalkene ether, also known as perfluororubber, which is a kind of rubber that does not contain C-H bonds at...

1.What are the precautions for the test run of the dry screw vacuum pump? Before the test run, check whether the maintenance quality meets the quality standards, and whether the records are complete and accurate; the cranking is light and free without jamming; the packing gland is not deflected, ...