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Vacuum Heat Treatment of Miniature Bearing Rings
Miniature bearings (referring to the bearing inner diameter <9 mm) should meet the requirements of high precision, high sensitivity, long life and reliable use, and should have high hardness, wear resistance and dimensional stability after heat treatment. Due to its small contact stress (<1...
Vacuum Heat Treatment Furnace Buying Guide
Vacuum heat treatment furnace is an advanced heat treatment equipment that can perform various heat treatments such as vacuum heating, quenching, tempering, annealing, carburizing, nitriding, pressurized gas quenching of metal materials and workpieces, as well as powder metallurgy sintering, Aero...
Silicon carbide material mechanical seal
The mechanical seal is an axial end face sealing device that relies on the elastic element to pre-tighten the sealing pair, and presses the sealing pair under the combined action of the medium and the elastic element to achieve sealing. Its structure is shown in the figure. There are two kinds of...
Vacuum heat treatment of 0Cr17Ni4Cu4Nb stainless steel base
0Crl7Ni4Cu4Nb steel is a typical precipitation hardening martensitic stainless steel with high strength, corrosion resistance, oxidation resistance, excellent formability and weldability, etc. It is widely used in aerospace, petroleum, chemical, nuclear industry, energy, etc. In the industrial fi...
Vacuum low pressure carburizing heat treatment for heavy duty gears
Heavy-duty gears are generally subjected to large torques during use. In order to ensure efficient and stable transmission of power when the parts are in service for a long time, they have high requirements for their fatigue performance. Such parts generally use carburizing and quenching methods ...
Main points of stainless steel EGR brazing process
1. Brazing joint connection method: Brazed joints are available in two ways: butt joint and lap joint. Butt joints are used, because the strength of the brazing filler metal and the brazing seam is generally lower than that of the base metal, so the butt joint cannot guarantee that the joint has...
Magnetic Materials Vacuum Heat Treatment Process
The raw materials of soft magnetic alloys are mainly rods, strips and plates, etc. The parts are cut, punched, punched or rolled by cold working. During the processing, the original grain structure of the material will be destroyed, which will reduce the magnetic permeability of the material. At ...
Vacuum Brazing Technology of Tube-and-Strip Heat Exchanger and Factors Affecting Brazing Quality
The vacuum needle brazing process is one of the key technologies in the manufacture of automotive air-conditioning tube-and-belt heat exchangers. Only by strictly controlling various factors affecting the quality of vacuum brazing can we ensure stable product quality. The commonly used materials ...
Application of Reaction Sintered SiC-B4C Ceramic Materials
Reaction sintered silicon carbide (RBSiC) is a process in which liquid silicon infiltrates into a carbon-containing body at high temperature, and reacts with carbon to form silicon carbide, so that the body can be sintered. The preparation of silicon carbide by the reaction sintering process inhe...
Vacuum brazing of locomotive aluminum exchanger
With the development of economy, my country has increased the speed of train transportation five times in a row, so the requirements for the heat exchanger of locomotives are getting higher and higher. The traditional locomotive heat exchanger is made of copper alloy. Since the density of aluminu...