Sintering furnace for silicon nitride ceramic sintering and working method of sintering furnace

A silicon nitride ceramics and sintering furnace technology, applied in the field of sintering furnaces, can solve problems such as inability to ensure uniformity of sintering temperature, product hardness, adverse effects on strength, uneven heating temperature, etc., so as to improve sintering efficiency and reduce the impact , The effect of continuous and uniform heating temperature
CN112393583AActive Publication Date: 2021-02-23宁波银瓷新材料有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
宁波银瓷新材料有限公司
Publication Date
2021-02-23

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Abstract

The invention relates to a sintering furnace for silicon nitride ceramic sintering and a working method of the sintering furnace. The sintering furnace for silicon nitride ceramic sintering comprisesa furnace body, a heating body arranged in the furnace body, a crucible borne on the heating body and a pipeline device for transmitting high-pressure gas, wherein the pipeline device is suitable forconveying the high-pressure gas to the position below the heating body. The continuous and uniform heating temperature is ensured, and the recrystallization phenomenon of a sintered alloy material isreduced; when the high-pressure gas is added into the furnace body through the pipeline device, the influence of the high-pressure gas on the crucible is reduced in cooperation with an air control device, meanwhile, the crucible is heated continuously and evenly, and materials in the crucible react sufficiently; and the temperature inside the furnace body is detected through a temperature sensor arranged on the furnace wall, so that the high-pressure gas with the proper temperature is selected to be introduced into the furnace body, and an air control system is further matched.
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Description

technical field

[0001] The invention relates to a sintering furnace, in particular to a sintering furnace for sintering silicon nitride ceramics and a working method thereof. Background technique

[0002] Chinese patent application number: CN202010613549.3 discloses a neodymium-iron-boron vacuum sintering furnace, including a furnace body, a vacuum pump, a cleaning device, a cooling device, a heating device, and a placement device. Divided into two spaces, the sintering chamber and the cooling chamber, the cleaning device and the heating device are arranged in the sintering chamber, the cooling device is arranged in the cooling chamber, the placing device is slidably clamped on the inner wall on the right side of the furnace body, and the placing device is equipped with There is a driving device, a furnace cover is provided on the sintering chamber and the cooling chamber, the furnace cover is pivotally connected to the furnace body, and the vacuum pump is respectively conne...

Claims

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