Application and performance of vacuum atmosphere furnace

 Application and performance of vacuum atmosphere furnace

Use industry

Vacuum atmosphere furnace is widely used in laboratories of colleges and universities, scientific research institutes and industrial and mining enterprises. It is a special equipment developed for sintering, melting, analysis and production of ceramics, metallurgy, electronics, glass, chemical industry, machinery, refractories, new material development, special materials, building materials, metals, nonmetals and other chemical and physical materials.

Performance introduction

Powder sintering at below atmospheric pressure.

The main advantages of vacuum atmosphere furnace are:

(1) The adverse effects of harmful components (water, oxygen and nitrogen) in the atmosphere on the products are reduced. For example, it is quite difficult to reduce the water content in electrolytic hydrogen to a dew point of - 40 ℃, and as long as the vacuum reaches 133pa, it is equivalent to a dew point of - 40 ℃. It is not difficult to obtain such a vacuum.

(2) Vacuum sintering can be used for materials that are not suitable to use reducing or inert gas as protective atmosphere (such as sintering of active metal), or are prone to decarburization and carburization.

(3) Vacuum can improve the wettability of liquid relative to solid, which is conducive to shrinkage and improve the microstructure of the alloy.

(4) Vacuum sintering helps to remove impurities such as silicon, aluminum, magnesium and calcium or their oxides, and plays the role of purifying materials.

(5) Vacuum is conducive to the removal of adsorbed gas, residual gas in pores and reaction gas products, and plays an obvious role in promoting the shrinkage in the later stage of sintering. For example, the porosity of cemented carbide sintered in vacuum is significantly lower than that sintered in hydrogen.

(6) The temperature of vacuum sintering is lower than that of gas shielded sintering. For example, when sintering cemented carbide, the sintering temperature can be reduced by 100 ~ 150 ℃. This helps to reduce energy consumption and prevent grain growth.

Learn more:

Horizontal Vacuum Annealing Furnace

Method For Making Bulletproof Inserts Based On Boron Carbide Bulletproof Ceramics

Development And Application Of Multi-Chamber Continuous Vacuum Furnace

评论

发表评论

此博客中的热门博文

Structural design of all-fiber trolley resistance furnace

 This paper focuses on the structural design of a full-fiber trolley-type resistance furnace. It uses high-aluminum full-fiber modules, CrMn resistance strips and fiber seals to replace the traditional brick kiln-type resistance furnace structure. It saves 30% of the overall power and is energy-saving, environmentally friendly, and convenient. Applicable, safe and reliable features. Research on vacuum brazing technology of dissimilar metals This trolley furnace is mainly used for tempering and welding annealing of large automobile forgings such as 45, 50, 55, 12Mn2VB, 40Cr, 42CrMo, 32MnSiVS5 and other steels. It is also used for low-temperature processing of carbon structural steel, alloy steel, mold steel and other products. Effect of filler metal on vacuum brazing of cemented carbide and steel In the tempering treatment, the parts are heated to the process temperature in the furnace and then insulated, and then come out of the furnace to be air-cooled to complete the
阅读全文

Trolley oven use

 It is an energy-saving oven for industrial large-scale production. It is mainly used for drying transformer cores and coils, drying spray-painted electrical cabinets and parts, drying rare earths, and drying casting sand molds. Heat treatment process for wide and thick plates drying, motor drying and other uses. The trolley-type material inlet and outlet method is adopted, which is suitable for automatic inlet and outlet of large quantities of workpieces. Effect of filler metal on vacuum brazing of cemented carbide and steel In the production process of Qianshi transformers, processes such as core preheating, coil pre-drying, coil dipping and drying, and resin curing are very critical and directly affect the quality of the transformer. Therefore, they have a negative impact on the temperature uniformity of the curing furnace and the reliability of the control system. The requirements are very high. Research on vacuum annealing of titanium alloys The YBDX series of tran
阅读全文