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What are the applications of vacuum brazing of aluminum alloy?
There are four main brazing methods for aluminum alloy: dry air chloride flux brazing, salt bath brazing, nitrogen protection non corrosive flux brazing and vacuum non flux brazing. The main disadvantage of the dry air method and the salt bath brazing method is that the flux residue must be remov...
Influence of Vacuum Tempering Treatment on Carburized Gears
Remanufacturing technology provides a new way to rationally deal with scrapped automobiles. The so-called remanufacturing is to remanufacture new products with qualified performance after cleaning, testing, repairing and assembling scrapped mechanical and electrical products. Common failures of g...
Prevention method for grinding cracks of vacuum carburizing and quenching gears
There has been a long-term serious problem in the gear grinding process – cracks. Grinding cracks refer to the occurrence of the grinding surface, the depth is shallow, and the depth is basically the same, and the direction is perpendicular to the tooth direction, that is, perpendicular to...
Pit Type Furnace Nitriding Process And Operating Procedures
Principles for determining preparatory processing: 1.Generally, structural steel parts are quenched and tempered. The high temperature tempering temperature should be 20~40℃ higher than the nitriding temperature, and the holding time should not be too long. 2.For parts with low impact toughness r...
Vacuum brazing technology of laminated aluminum evaporator
The evaporator is an important part of the automobile air conditioner, which forms the air conditioning component with the heater core, fan, plastic shell, etc., and is located at the lower part of the automobile dashboard. The automobile refrigeration system is composed of a condenser, a circula...
How to Leak Detection of Vacuum Furnace
Blow-through method is a traditional leak detection method, which involves evacuating the furnace chamber, applying helium gas outside the furnace (such as connecting a helium mass spectrometer), and then observing the results. Another method is the nozzle detection method, which is suitable for ...
304 stainless steel cold rolling and vacuum annealing process
Stainless steel has excellent quality and characteristics, so its application range is getting wider and wider, and the production and demand of stainless steel around the world have been showing a trend of continuous growth. As a general-purpose corrosion-resistant material, 304 stainless steel ...
How to control distortion in vacuum heat treatment of sheet parts?
Thin metal parts are a kind of parts with high requirements for distortion. Taking 35CrMnSiA steel parts as an example, it is a common quenched and tempered steel with good hardenability and is widely used in the production of various thin sheet parts. When processing the quenching in this vacuum...
Vacuum Brazing and Heat Treatment Process of Stainless Steel Surgical Instruments
Surgical instruments used for holding suture needles and knotting are inlaid with cemented carbide at their working ends to obtain better wear resistance, anti-skid performance and easy maintenance and replacement. In recent years, our factory has adopted the vacuum brazing heat treatment compos...
Vacuum heat treatment of sheet parts
Thin metal parts are widely used. Some precision equipment not only requires high strength, but also requires high precision for thin parts. Therefore, it is necessary to control the distortion of thin parts during heat treatment. During the atmosphere protection heat treatment of the sheet in th...