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How to improve the brazing of the header of the tube and strip heat exchanger?
The main brazing defects in vacuum brazing of tube and strip heat exchanger are that the brazing joint between header and coil is not dense, faulty welding and incomplete fusion, which seriously affects the first pass rate and service life of the brazing of heat exchanger. The resulting product s...
Vacuum Interrupters Brazing
The vacuum interrupter, also known as the vacuum switch tube, is the core component of the medium and high voltage power switch. Its main function is to quickly extinguish the arc and suppress the current after the medium and high voltage circuit is cut off through the excellent insulation of th...
Vacuum Heat Treatment Process of Machine Tool Spindle
1 Principles of material selection for machine tool spindles Spindle is one of the key parts of machine tool spindle components, which mainly plays the role of supporting transmission parts and transmitting torque. The reasonable selection of main shaft materials should follow the following prin...
Different Quenching and Tempering of GCr15 Bearing Steel Balls
1 Heat treatment process of steel balls The production process of 10 mm steel ball is: cold sensitivity → stress relief annealing → soft grinding → quenching and tempering → inspection of the hardness of the steel ball after quenching and tempering, structure crushing load, etc. → transfer to gri...
Vacuum brazing of elliptical corrugated horn
Elliptical corrugated horn is an important part of the radar feeder system. As a device for transmitting high-frequency electromagnetic waves, it has complex structure and high accuracy requirements. The traditional processing method is mechanical processing, but this is not only time-consuming a...
On-line quenching and tempering of high strength steel plate
12MnNiVR high-strength steel plates are mainly used in large floating roof oil storage tanks of 100,000 to 200,000 cubic meters. High-efficiency large-line energy welding technology is used, and the welding line energy is 50-100 kJ/cm. Therefore, high-strength steel plates for oil storage tanks s...
Surface Gas Nitriding Treatment of 2Cr13 Steel
2Cr13 steel is a high-chromium martensitic stainless steel with high fatigue strength and good comprehensive properties. It is mainly used for parts with high plasticity requirements and impact loads, such as steam turbine blades, large axial compressor blades, and valve bodies. ﹑ Fasteners, sha...
What are the characteristics and advantages of the MIM process?
Metal powder injection molding technology is a powder metallurgy molding technology formed by the combination of modern plastic injection molding technology and powder metallurgy technology, and has been rapidly promoted. Its basic technological process is: firstly, the micro metal elements or al...
Vacuum Brazing of EGR Stainless Steel Cooler
EGR car coolers are exhaust gas recirculation coolers that reduce vehicle exhaust emissions. The exhaust gas that has been burned can effectively reduce the oxygen content and temperature after passing through the EGR cooler, and mix and burn with fresh gas in the cylinder, reducing the amount of...
Aluminum alloy vacuum brazing of heat exchangers
Aluminum alloys have been widely used in the field of heat exchangers due to their high specific strength, excellent heat transfer performance, abundant reserves and low cost. The all-aluminization of heat exchangers has become an inevitable trend of development, and its manufacture must be compl...