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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...
Carburizing Process Introduction
Carburizing refers to the process of infiltrating carbon atoms into the surface layer of steel. It is also to make the work-piece of low carbon steel have the surface layer of high carbon steel, and then through quenching and low temperature tempering, so that the surface layer of the work-piece ...
Heat Treatment of Buick Automatic Transmission Parts on Low Pressure Vacuum Carburizing Furnace
Due to the material selection and shape design of some parts of Buick sedan 4T65E transmission, the heat treatment deformation is difficult to control, and the most typical ones are thin-walled parts such as the final deceleration sun gear shaft. The part is made of SAE 4130 annealed welded seaml...
Sub-temperature annealing heat treatment process
Sub-temperature normalizing heat treatment Sub-temperature normalizing refers to the heat treatment process in which hypoeutectoid steel is heated between Ac1 and Ac3 temperature and air-cooled after heat preservation (see Figure). After the hypoeutectoid steel is hot processed, the hardness of t...
Some Opinions on Material Change in Pressure Vessel Manufacturing
How to select the correct materials is the first issue to be resolved in the design and manufacture of pressure vessels, and it is also a very important aspect. Once the material is selected incorrectly, it will leave a greater hidden danger to the safe operation of the container. Therefore, in t...
Tips for daily use and maintenance of vacuum furnace
As there are many types and types of vacuum furnaces, the maintenance and repair items are different. The maintenance and inspection content should be based on the furnace technical documents and can be divided into each furnace, daily, monthly, semi-annual and yearly Projects underway. SIMUWU ha...