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Vacuum low pressure carburizing heat treatment process of 8620 steel
8620 alloy steel is an American steel grade. Its main composition is similar to that of domestic 20CrNiMo steel. It is often used in the forging of key components such as gear shafts, valves in pressure vessels, and inlet and outlet pipe seats. It has high hardenability and superior welding and p...
Vacuum Brazing Process
Vacuum brazing can be divided into high vacuum brazing and partial vacuum brazing according to different vacuum conditions. High vacuum brazing is suitable for brazing filler metals and base metals that contain less volatile elements and are difficult to decompose oxides. If the solder contains m...
Die steel vacuum quenching process
Cr12mov steel pipe is a cold work die steel. There are two heat treatment processes: the first process is called low quenching and low recovery. It is used in an environment where the operating temperature is not high and has good toughness. With the increase of tempering temperature, the hardnes...
Vacuum Brazing of Ceramic Metals
Engineering ceramics has developed into a generally recognized high-performance structural material due to its excellent high temperature resistance, corrosion resistance and wear resistance, but its application is limited due to its poor plasticity and impact resistance. Only by combining the st...
Vacuum oil quenching heat treatment
Vacuum quenching oil (requirements for quenching oil): (1) Low vapor pressure, not easy to volatilize; (2) There are few impurities and carbon residues, and the acid value is low; (3) Low critical pressure and good cooling performance; (4) good thermal stability; Characteristics of quenching oil ...
9SiCr die steel vacuum heat treatment
9SiCr steel is a kind of low alloy steel for cutting tools. It is widely used in China and is often used in cold work molds, which has played a very good role. Compared with chromium steel (Cr2 or 9Cr2), 9SiCr steel has higher hardenability and hardenability, and has excellent tempering stability...
Vacuum gas quenching process
Vacuum gasquenching medium The cooling rate of vacuum air quenching is related to the type of gas, gas pressure, flow rate, furnace structure and furnace loading condition. Available gases are Ar, He, H, and N,. Assuming that the heat transfer rate of air under the same conditions is 1, then Ar i...
Gear drive shaft vacuum heat treatment
The gear drive shaft is an important transmission part in the rolling mill, which mainly bears the alternating load, the impact load, the shear stress and the contact stress. The shaft is prone to cracks and the teeth are prone to wear. Therefore, the core of the gear shaft is required to have a ...
CTS antenna vacuum brazing
With the continuous improvement of modern electronic equipment’s requirements for high reliability, high performance, light weight and miniaturization, the importance of advanced welding technology has become increasingly prominent. CTS (Continous Transverse Stub) antenna assembly is a thin...
Vacuum carburizing and quenching process of 15CINi4MoA steel cross shaft
The cross shaft is an important part of the cross-shaped universal joint shaft. The material is often made of 15CINi4MoA steel. The final vacuum heat treatment process is vacuum carburizing and quenching. Because the Ni content (mass fraction) of the material is as high as 4%~4.5%, Ni and Fe can ...