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A spark plasma sintering mold using polycrystalline mullite fiber for heat preservation

A technology of polycrystalline mullite and discharge plasma, which is applied in the field of ion sintering, can solve the problems that the uniformity of powder distribution cannot be guaranteed, the product has defects, and the quality of the product is affected. The effect of reducing the difficulty of operation

Active Publication Date: 2022-08-02
德清县海杰包装有限公司
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Problems solved by technology

[0003] Due to the performance of polycrystalline mullite fiber, it has been widely used in spark plasma sintering process, but the uniformity of powder distribution in the existing mold for spark plasma sintering cannot be guaranteed during use, which is easy to cause There are defects in the formed product, which affects product quality, and the current spark plasma sintering mold needs to be used with multiple mechanical components, resulting in poor mobility

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  • A spark plasma sintering mold using polycrystalline mullite fiber for heat preservation
  • A spark plasma sintering mold using polycrystalline mullite fiber for heat preservation
  • A spark plasma sintering mold using polycrystalline mullite fiber for heat preservation

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Embodiment Construction

[0031] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0032] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inside", " The orientation or positional relationship indicated by "outside" is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather th...

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Abstract

The invention discloses a spark plasma sintering mold adopting polycrystalline mullite fiber for heat preservation, comprising an inner mold fixedly installed on an outer layer of polycrystalline mullite fiber, and the outer layer of said polycrystalline mullite fiber is fixedly installed on the outer layer. There are a plurality of supporting feet, a pressure plate is slidably connected to the inner mold, an annular groove is provided on the side wall of the inner mold, a rotating ring is rotatably connected to the annular groove, and a rotating mechanism is installed on the inner mold. The rotating mechanism cooperates with the rotating ring, two fixing blocks are fixedly installed on the outer layer of the polycrystalline mullite fiber, and connecting rods are installed on the two fixing blocks, and the two connecting rods are connected with the two connecting rods. A positioning mechanism is installed between the fixing blocks. The advantages are: the present invention can exert a certain degree of stirring effect on the metal powder placed in the inner mold, so that the metal powder is more uniformly distributed in the inner mold, and the quality of the sintered product is improved, and the mold has the requirements for the use of auxiliary machinery Low for easy movement.

Description

technical field [0001] The invention relates to the technical field of spark plasma sintering, in particular to a spark plasma sintering mold adopting polycrystalline mullite fiber for heat preservation. Background technique [0002] Polycrystalline mullite fiber is a kind of polycrystalline alumina fiber. It can be used for a long time as a thermal insulation material in high temperature thermal equipment below 1600 °C, which can significantly improve the thermal efficiency of the equipment, greatly save energy, increase productivity, and improve products. Quality, spark plasma sintering process is to put metal and other powders into a mold made of graphite and other materials, and use upper and lower die punches and energized electrodes to apply a specific sintering power supply and pressing pressure to the sintered powder, which is activated by discharge and thermoplastic deformation. A new powder metallurgy sintering technology for the preparation of high-performance mat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F3/105B22F3/14
CPCB22F3/105B22F3/14B22F2003/1051
Inventor 邱昂力
Owner 德清县海杰包装有限公司
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