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Understand the advantages of vacuum heat treatment of aluminum alloys
The quenching of aluminum alloys is also called solid solution treatment, that is, through high-temperature heating, as many alloying elements existing in the form of the second phase in the metal are dissolved into the solid solution as possible, and then rapidly cooled to suppress the precipita...
Graphite and metal vacuum brazing
Graphite has excellent properties such as low specific gravity, low thermal expansion, high thermal and electrical conductivity, easy processing, and resistance to high temperature, corrosion, wear, thermal shock, fatigue, etc., making it indispensable in metallurgy, electronics, automobiles, nuc...
Vacuum Sintering Furnaces for Ceramics
Observing the sintering phenomenon at the macro and micro levels, it can be seen that at the macro level, the volume of the product after vacuum sintering shrinks, the density increases, and the strength increases. Microscopically, the shape of the pores changes, the crystals grow, and the compo...
Vacuum sintering system for ceramics
Sintering refers to the densification process in which the formed body is gradually transformed into a sintered body with a certain geometric shape and a solid sintered body under the action of high temperature through mutual bonding and material transfer between particles, pores are eliminated, ...
Precautions for vacuum brazing of stainless steel
Stainless steel contains at least 11 wt% chromium and is known as a material with a minimum chromium content of 10.5~12 wt%. Compared with carbon steel and low alloy steel, chromium produces a passivated chromium oxide layer on the surface of stainless steel, which can improve its oxidation resis...
Vacuum brazing flux selection
Borax can be used as a flux and is widely used in vacuum brazing. However, some brazing practitioners do not fully understand the properties of borax flux, and often equate borax with the concept of flux. When it comes to the need to use flux, the first thing that comes to mind is the use of bora...
Research on titanium alloy plate-fin vacuum brazing
Plate fin heat exchangers are widely used in high-end equipment power and environmental control systems such as aerospace, submarines, and aircraft carriers due to their high heat transfer efficiency, high cost performance, compact and lightweight structure. Plate-fin heat exchangers are usually ...
Quality control of gas carbonitriding process
The quality control of the gas carbonitriding process is actually to control the carbonitriding potential of the gas carbonitriding process. It is easier to control the carbon and nitrogen potential in furnaces equipped with automatic control devices, but it is more difficult for most factories t...
Basic knowledge of brazing joints
Types of brazing joints Generally speaking, the difference between a satisfactory brazed joint pattern and a satisfactory one is the amount of overlap required to obtain a satisfactory joint. A strong soldered joint has a larger surface area wetted by the solder. However, too much overlap is detr...
Vacuum Aluminum Brazing
Common vacuum aluminum brazed components include heat exchangers, condensers and evaporators used in the automotive, aerospace, energy and other industries. Vacuum aluminum brazing process The vacuum aluminum brazing process usually takes a short time because the vacuum furnace evacuates and hea...