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annealing classification and selection
1. The difference between incomplete annealing and complete annealing (1) Incomplete annealing is also called incomplete crystallization annealing. The temperature is the temperature between AC1 and AC3 or AC1 and ACM in the heating channel of steel, which is cooled slowly after heat preservation...
Vacuum nitriding furnace technology description
Nitriding is to use vacuum furnace to heat the whole steel and fill a small amount of gas to produce active nitrogen atoms at low pressure, so as to infiltrate and diffuse into the steel to achieve hardening; ion nitriding is the active nitrogen produced by glow discharge. Ion bombardment heats o...
vacuum brazing heating and cooling process parameters
The vacuum degree, working pressure, heating rate, stable temperature and holding time, temperature, holding time, cooling rate and outlet temperature of vacuum brazing furnace have direct influence on vacuum brazing process. (1) The selection of cold vacuum mainly depends on the type of base met...
6 kinds vacuum sintering furnace emergency methods
Vacuum sintering furnace is under the protection of hydrogen filling after vacuum pumping, using the principle of medium frequency induction heating to make the tungsten crucible in the coil produce high temperature, which is transmitted to the work through heat radiation. It is suitable for the ...
gem heat treatment technology principles
In the process of heat treatment, there are many changes in the interior of gem. The basic principle of heat treatment is to discover and use those changes that help to show the potential aesthetic feeling of jewelry and jade through repeated tests and corrections. Gem heat treatment equipment: b...
zero flow process in vacuum nitriding furnace
Nitriding, also known as nitriding, refers to a chemical heat treatment process (at a certain temperature, when the atmosphere in the furnace reaches a certain requirement) to infiltrate nitrogen atoms into the surface of metal workpiece to form a kind of surface that can improve the surface hard...
The Influence of Vacuum Brazing Heating Rate on Brazing Quality
Heat exchanger (also called heat exchanger or heat exchange equipment) is a device used to transfer heat from hot fluid to cold fluid to meet the specified process requirements. It is an industrial application of convective heat transfer. When the heating rate is fast, the surface color of the pa...
SPS spark plasma sintering system
As a new and effective rapid sintering technology, spark plasma sintering (SPS) has been applied to the research and development of many kinds of materials. It combines the advantages of plasma activation and hot pressing, such as fast heating rate, short sintering time, rapid cooling, adjustable...
7 Types of Annealing Process
Various energy-saving annealing processes such as low-temperature annealing, water-blast annealing, rapid softening, and isothermal spheroidizing annealing performed by domestic counterparts, compared with traditional high-temperature and long-term annealing processes, the new annealing process s...
vacuum tempering furnace heating process attentions
As we all know, vacuum tempering furnace is mainly used for tool steel, die steel, high speed steel, ultra-high strength steel, titanium alloy and other materials after vacuum quenching, vacuum tempering after solution treatment, recrystallization annealing and vacuum aging of non-ferrous metals....