Vacuum quenching technology is becoming more and more popular, but at the same time, its problems are pointed out.One is the evaporation of alloying elements such as Cr and Mn, and the surface abnormal structure produced by vacuum evaporat…

In the material production process, the problem of material transportation between production links has become an important issue that restricts pharmaceutical companies to improve production processes and improve product quality. The rota…

Vacuum heat treatment, that is, the combination of vacuum technology and heat treatment, refers to the combination of all the parts of the heat treatment process under vacuum. China divides vacuum into low, medium, high and ultra-high vacu…

Diaphragm gasoline pump diaphragm gasoline pump is the representative of mechanical gasoline pump. It is used in carburetor engine. Generally, it is driven by eccentric wheel on camshaft. Its working conditions are as follows: (1) When the…

Roots vacuum pump features: There is no oil in the pump chamber to achieve a high clean vacuum. The rotor has good geometric symmetry for low noise and long life.The pump is made of aluminum alloy as a whole, which realizes fast heat dissi…

Pre-assembly preparation and installation process of water ring vacuum pumpBefore assembling the water-ring vacuum pump, the joint surface of each component should be carefully cleaned. All the mating surfaces and threads should be careful…

The following problems should be paid attention to in the structural design of cryogenic liquid pumps:(1) In order to ensure uniform cold shrinkage of parts at low temperature, the structure should be symmetrical;(2) The inlet and outlet p…

Series submersible reflux pump is a product developed on the basis of submersible mixer production technology. It is a special equipment for mixed liquid reflux and reverse-sale denitrification and nitrogen removal in secondary sewage trea…

Plunger pumps are divided into two representative types of axial and radial plunger pumps.It belongs to a new type of high-efficiency pump with high technical content. With the acceleration of localization, radial piston pump will inevitab…