Vacuum Furnace Vacuum Furnace Technology Frontiers

Vacuum heat treatment process of 40Cr steel

Heat treatment plays a very important role in mechanical manufacturing. Generally, it does not change the shape of the tool, and rarely changes its chemical composition. Instead, it changes the fine structure inside the tool, or the chemical composition on the surface of the tool, so as to improv...

Degreasing Process in Ceramic Injection Molding

Ceramic Injection Molding (CIM for short) is a new type of near-net-shape technology for ceramics. The feed material is injected into the mold cavity and cooled and solidified to form, and then the organic matter in the formed blank is removed by heating or other physical and chemical methods, an...

Vacuum Heat Treatment Process Prevention of Cemented Carbide Tool Cracks

Welding cracks are common welding defects of alloy cutting tools. The reasons are mainly caused by the following aspects: 1.1 The effect of cemented carbide hardness on crack formation Generally, the higher the strength of the cemented carbide, the less likely to have cracks during welding. Howe...

Factors Influencing the Quality of Reaction Sintered Silicon Carbide

Silicon carbide ceramics have excellent properties such as high mechanical strength, high temperature resistance, strong oxidation resistance, good thermal stability, high thermal conductivity, good wear resistance, good chemical corrosion resistance, high hardness, and good thermal shock resista...

CVD/PCD Diamond Tool Brazing

Single crystal cutting tools is mainly in the field of ultra-precision machining cutting tool, the cutting tool is general quality is greater than 0.1 g, the path is not less than 2 mm long, which can realize the mirror machining, can work out high precision and low surface roughness of workpiece...

Vacuum Brazing of Silicon Nitride Ceramics and 45 Steel

In this paper, the Al-Si alloy foil is used as the intermediate reaction layer of vacuum brazing, and the vacuum brazing of silicon nitride ceramics and 45 steel is experimentally studied under the conditions of certain brazing temperature and holding time. Selection of brazing filler metal: In ...

Design of Heating Chamber of High Temperature Vacuum Brazing Furnace

Brazing is a welding technology that uses a solder with a lower melting temperature than the base metal, adopts an operating temperature lower than the solidus of the busbar and higher than the liquidus of the solder, and connects the base metals together through the molten solder. The vacuum bra...

Pollution causes of precision alloy vacuum furnace

Vacuum furnaces are mostly used for ferrous metal heat treatment. Due to the easy access to the required surface quality, the pollution of vacuum furnaces has not attracted much attention. Vacuum furnace manufacturers have not made great efforts to solve this problem, especially for heat treatmen...

Influence of Reaction Sintering Process on Properties of Silicon Carbide Ceramics

In this paper, the effects of degumming temperature, silicon addition amount (that is, the mass ratio of silicon to silicon carbide green body), heating rate and refiring times on the bulk density, bending strength, fracture toughness and microstructure of reaction sintered silicon carbide produc...

Application of Pressureless Sintering of Silicon Carbide Ceramics

With the development of science and technology, especially the high development of energy and space technology, it is often required that materials must have superior properties such as high temperature resistance, corrosion resistance, and wear resistance before they can be used in relatively ha...