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What are the advantages of using a vacuum sintering furnace?

Views: 0     Author: Site Editor     Publish Time: 2023-06-14      Origin: Site


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Sintering is the main way to manufacture ceramics. With the gradual maturity of vacuum technology, vacuum sintering furnace has become the main equipment for sintering ceramics and alloys. What are the advantages of using vacuum sintering furnace compared with traditional sintering process?

Advantages of vacuum sintering furnace:

1, can improve the solid phase properties of the alloy: under vacuum sintering conditions, the hard phase surface adsorbed less impurities, improve the wettability of the drill to the hard phase, improve the strength of the alloy, especially the TiC alloy.

2, can improve the purity of sintered alloy: under vacuum sintering conditions, is conducive to metal oxide reduction; The whole sintering cycle does not need to open the furnace door, no air enters, and almost no reaction involving N2 and O2 occurs.

3, the operation process is simple: because the vacuum sintering can not use the filler, which not only simplifies the operation, but also avoids the adverse effect of the filler on the surface of the sintered body.

4, it is easier to control the carbon content: under the condition of vacuum sintering temperature, the pressure in the furnace is only tens of Pa (Pa), or even lower, O2, N2, H2 and H2O molecules are very few, many reactions can be ignored, and the influence of the medium is very small. As long as the dewaxing process is strictly controlled, the carbon content of the alloy changes little during the vacuum sintering process, and the properties and microstructure are quite stable.

5, can achieve a variety of temperature sintering: can be divided into temperature segments to control the temperature, atmosphere and pressure in the furnace, can achieve isothermal sintering at any temperature (insulation), to complete a variety of functions, such as gradient alloy sintering.

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