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A high and low temperature double body vacuum hot pressing sintering furnace

A technology of vacuum hot pressing sintering and sintering furnace, which is applied in the direction of furnace, charge, muffle furnace, etc. It can solve the problems of high input cost and different temperature control accuracy, and achieve the effect of saving investment cost

Active Publication Date: 2022-07-01
CENT SOUTH UNIV
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Problems solved by technology

[0004] In order to overcome the deficiencies of the prior art, the present invention provides a high-low temperature double-body vacuum hot-pressing sintering furnace, which overcomes the problems of different temperature control accuracy in different temperature zones and high input costs.

Method used

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  • A high and low temperature double body vacuum hot pressing sintering furnace
  • A high and low temperature double body vacuum hot pressing sintering furnace
  • A high and low temperature double body vacuum hot pressing sintering furnace

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Embodiment Construction

[0034] A high-low temperature dual-body vacuum hot-pressing sintering furnace of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0035] In the embodiment of the present invention, the high-low temperature dual-body vacuum hot-pressing sintering furnace includes a furnace body 1 in a high-temperature zone. The heating system adopts a graphite heater, which is connected in a cylindrical shape. It ensures the best temperature uniformity and uniform heating of the workpiece, and can be replaced at any time; the furnace body 2 in the low temperature zone, the heating system adopts nickel-chromium resistance band heater, the maximum heating temperature is 1200 ℃, and it is symmetrically distributed outside the uniform temperature zone to ensure The best temperature uniformity and uniform heating of the workpiece, and easy maintenance and replacement of the heating element; furnace bodies 1 and 2 are both do...

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Abstract

The invention relates to a high and low temperature double body vacuum hot pressing sintering furnace. The high-low temperature dual-body vacuum hot-pressing sintering furnace designed by the present invention includes two furnace bodies with different heating temperature zones, which are respectively a high-temperature zone sintering furnace (1) and a low-temperature zone sintering furnace (2); the two furnaces share a set A control system (3), a set of hydraulic-water cooling system (4) and a set of vacuum system (5), wherein the connected pipelines and the outer edge of the vacuum system have flange interfaces (7), which are sequentially connected by sealing flanges; The two furnaces are correspondingly designed with two sets of voltage transformation systems; the pipeline of the vacuum system (5) is provided with a three-way pipeline; two of the three-way pipelines are respectively connected with the high temperature zone sintering furnace (1) and the low temperature zone sintering furnace ( 2) Connected. The invention realizes the integration of sintering furnace bodies in different temperature zones, has good heating uniformity, accurate temperature control, saves investment cost, and can meet the temperature and vacuum degree requirements of different material sintering systems in the powder metallurgy sintering process.

Description

technical field [0001] The invention relates to the field of design and manufacture of a new type of hot pressing furnace, in particular to a high and low temperature two-body vacuum hot pressing sintering furnace. Background technique [0002] Vacuum hot pressing sintering furnace combines vacuum / atmosphere, hot pressing forming and high temperature sintering. Hot press forming and sintering under gas protection. For example, it is used in vacuum sintering of metals such as transparent ceramics, industrial ceramics and alloy materials composed of refractory metals and high-temperature sintering of ceramic materials. It can also be used for heat treatment of powders or compacts at temperatures lower than the melting point of the main components. Its strength is enhanced by metallurgical bonding between particles. [0003] The heating element of the hot-pressing sintering furnace can be mainly divided into two categories: one is made of refractory metal or its corresponding...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F27B5/02F27B5/04F27B5/06F27B5/14F27B5/18F27D1/12F27D7/06
CPCF27B5/02F27B5/04F27B5/06F27B5/14F27B5/18F27D1/12F27D7/06F27D2007/066F27B2005/062F27M2003/04
Inventor 刘文胜刘超马运柱史政刘阳龙路平杨玉玲
Owner CENT SOUTH UNIV
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