Large size SPS rapid sintering hot press furnace

NegotiableUpdate on 01/15

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Overview

The large-size SPS rapid sintering hot press furnace is a new powder industry sintering technology that places powder into molds made of graphite and other materials, applies specific sintering power and pressing pressure to the sintered powder using upper and lower die punches and energized electrodes, and completes the production of high-performance materials through discharge activation, thermoplastic deformation, and cooling. $r $n has the characteristic of sintering during the pressurization process, and the plasma generated by the pulse current and the pressurization during the sintering process are beneficial for reducing the sintering temperature of the powder. At the same time, the characteristics of low voltage and high current can enable rapid sintering and densification of the powder.

Product Details

Large size SPS rapid sintering hot press furnaceIt mainly consists of a power heating system, furnace body, vacuum and atmosphere control system, temperature measurement system, pressurization system, water cooling system, pneumatic device, electrical control system, etc.

The "discharge plasma pressurization equipment" is used for the sintering process of piezoelectric composite ceramic crystals, enabling the material to obtain high-quality hot forged bodies at lower temperatures and in a shorter time.

Discharge plasma pressurization equipmentIt is a type of current activation/assisted sintering technology that enhances particle bonding and densification by combining mechanical pressure, electric field, and thermal field.

Discharge plasma pressurization equipmentThe same stamping/mold system concept as the hot pressing process is adopted: the powder is placed in the mold and pressed between two counter sliding punches, and the mechanical load is usually uniaxial.

However, there are fundamental differences in the heating methods between the two. Hot press sintering uses a heating element for radiation heating, while discharge plasma sintering generates Joule heat through the current of the mold or sample. This heating method can achieve a heating rate of up to 1000 ℃/min, greatly reducing the heating time.
In addition, current can enhance powder sintering by activating one or more parallel mechanisms, such as surface oxide removal, electromigration, and electroplasticity. The application of current and high heating rate are the most typical characteristics of discharge plasma sintering technology.

Large size SPS rapid sintering hot press furnaceMain technical parameters:

Design temperature: 2300 ℃ (temperature and heating rate depend on sample and mold size)

Output current (instantaneous): DC 0-50000A

Pressure range: 10-400T