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Split high-temperature preheating powder explosive sintering device

A sintering device and a split-type technology are applied in the field of split-type high-temperature preheating powder explosive sintering devices, which can solve the problems of complex shock wave propagation, precise control of unfavorable process parameters, and high requirements for safety and heat insulation of explosives.

Inactive Publication Date: 2013-11-20
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Abstract
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Problems solved by technology

Since this method does not require an external heat source, the powder is preheated by exothermic in-situ chemical reaction. Therefore, this method has high requirements for the safety and heat insulation of the explosive. Layers of heat insulation materials lead to complex shock wave propagation, which is not conducive to the precise control of process parameters

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  • Split high-temperature preheating powder explosive sintering device
  • Split high-temperature preheating powder explosive sintering device
  • Split high-temperature preheating powder explosive sintering device

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Embodiment Construction

[0018] The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0019] The invention provides a split-type high-temperature preheating powder explosive sintering device, which includes a shock wave loading component, a controllable split component and a sample high-temperature recovery component, figure 1 It is the physical picture of the device of the present invention, the upper shock wave loading component is used to generate the explosion shock wave, the lower sample high temperature recovery component is used to carry and preheat the powder to be sintered, and the controllable split component on the side locks the shock wave loading component Above the sample high-temperature recovery component, the shock wave loading component and the sample high-temperature recovery component are separated by air. When the controllable split component is triggered, the shock wave loading component can be released, so that the sho...

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Abstract

The invention discloses a split high-temperature preheating powder explosive sintering device, which comprises a shock wave loading component, a controllable split component and a sample high-temperature recovery component, wherein the shock wave loading component can be locked and released by the aid of the controllable split component. The explosion shock pressure and the continuous action time of shock waves can be precisely adjusted by means of adjusting experimental conditions, the highest preheating temperature of powder to be sintered can be higher than 1000 DEG C by means of a chemical heating method or an electric heating method, the optimal initiation time can be determined by means of making multiple experiments according to sintering conditions.

Description

technical field [0001] The invention relates to a high-temperature preheating powder explosive sintering device, in particular to a split type high-temperature preheating powder explosive sintering device. Background technique [0002] Explosive sintering, also known as explosive consolidation, is a technology that uses the shock wave generated by the explosion of explosives or the impact of flying pieces to pass through metal or ceramic powders, causing bonding between adjacent powder particles to form dense blocks. This technology has the characteristics of fast melting and fast cooling, instantaneous high temperature and high pressure, and high strain rate. It is an effective method for preparing balanced and non-equilibrium materials. It is applied to nanostructure materials, amorphous materials, superhard materials and refractory powder materials. field. [0003] For W, Mo, Ti and other refractory metals and ceramic powders, due to their natural characteristics of high...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F3/10
Inventor 陈鹏万周强尹昊高鑫
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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