Bidirectional hot-pressing high-temperature oscillation sintering furnace and working method thereof

Abstract

The invention discloses a bidirectional hot-pressing high-temperature oscillation sintering furnace and a working method thereof. The sintering furnace provided by the invention comprises a first hydraulic cylinder, a second hydraulic cylinder, a furnace body, a thermal-insulation barrel, an upper furnace cover, a lower furnace cover, an upper pressure head, a lower pressure head, a first microwave rapping device and a second microwave rapping device, wherein the first hydraulic cylinder is provided with a first moving bar; the second hydraulic cylinder is provided with a second moving bar; the thermal-insulation barrel is arranged in the furnace body; the upper furnace cover and the lower furnace cover are respectively covered on the upper end and the lower end of the furnace body in a sealing mode by a flange plate; the upper pressure head integrally extends from the first moving bar of the first hydraulic cylinder and is arranged on the upper furnace cover; the lower pressure head integrally extends from the second moving bar of the second hydraulic cylinder and is arranged on the lower furnace cover; the first microwave rapping device and the second microwave rapping device are respectively connected with the upper pressure head and the lower pressure head; the furnace body is provided with a plurality of electrodes and a plurality of water pipes fixed on the furnace body via drivepipes; a gap is formed between the thermal-insulation barrel and the inner surface of the furnace body; a heating body and two graphite pressure heads are arranged in the thermal-insulation barrel, wherein two graphite pressure heads are oppositely arranged up and down by corresponding to the upper pressure head and the lower pressure head; and the plurality of electrodes respectively andsuccessively pass through electrode through holes on the furnace body and the thermal-insulation barrel to enter into the furnace body, and are connected with the heating body.

Description

technical field [0001] The invention relates to a sintering furnace, in particular to a two-way hot-pressing high-temperature oscillating sintering furnace and its working method. Background technique [0002] The sintering furnace heats and sinters metals, ceramics and some refractory metal intermediate compound powders in a vacuum and protective atmosphere to obtain dense materials with a certain density and certain mechanical properties. Sintering furnaces mainly include vacuum hot pressing sintering furnaces and discharge plasma sintering furnaces. Among them, the vacuum hot pressing sintering furnace is a combination of vacuum, hot pressing and high temperature sintering, and is widely used in the sintering and molding of various anti-oxidation materials in the powder metallurgy industry and vacuum diffusion welding field. Preparation of the powder under pressure can increase the density of the powder and reduce various voids, especially for the formation of an excelle...

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Problems solved by technology

[0004] Another object of the present invention is to provide a working method of a two-way hot-pressing high-temperature oscillating sintering furnace, which solves the problem of uniform force by means of the upper and lower pressing heads while applying vibration, which has high reliability and is conducive to large batches Production

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