Method for preparing vertical intermediate-frequency furnace by integrally casting and compounding furnace pipe and thermal insulation layer

An intermediate frequency furnace and vertical technology, which is applied in the field of carbonization, cemented carbide sintering vertical intermediate frequency furnace integral casting composite furnace and the preparation of insulation layer, can solve the problems of inconvenient maintenance and replacement, inability to meet the carbonization process, etc., and achieve convenient The effect of maintenance and replacement, cost saving and energy consumption reduction
CN102419094AInactive Publication Date: 2012-04-18江西耀升钨业股份有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
江西耀升钨业股份有限公司
Publication Date
2012-04-18
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention belongs to the technical field of tungsten powder carbonized and cemented carbide sintered furnaces, and in particular relates to a method for preparing a vertical intermediate-frequency carbonized and cemented carbide sintered furnace by integrally casting and compounding a furnace pipe and a thermal insulation layer. The vertical intermediate-frequency carbonized and cemented carbide sintered furnace is produced by compounding and casting the fire-resistant furnace pipe in which zirconium oxide hollow spheres and alumina hollow spheres are taken as aggregate, a crude corundum hollow sphere packing layer in which crude corundum hollow spheres are as the aggregate, and a zirconium oxide hollow sphere thermal insulation layer in which the zirconium oxide hollow spheres are taken as the aggregate sequentially and integrally. As the compound furnace pipe and thermal insulation layer are integrally cast by using different fire-resistant materials, the working temperature of the vertical intermediate-frequency carbonized furnace is raised from 1,600 DEG C to 2,300 DEG C, the energy consumption of thermal equipment can be reduced greatly, and the vertical intermediate-frequency furnace is convenient to maintain and replace and saves cost.
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Description

technical field

[0001] The invention belongs to the technical field of a tungsten powder carbonization and cemented carbide sintering furnace, in particular to a method for preparing a carbonization and cemented carbide sintering vertical intermediate frequency furnace integral casting composite furnace and insulation layer. Background technique

[0002] At present, in tungsten powder carbonization and cemented carbide sintering furnaces, the furnace and heat-resistant insulation layer are all split structures, and the heat-resistant insulation layer is made of quartz sand and carbon black materials, so that the working temperature of the vertical intermediate frequency carbonization furnace does not exceed 1600°C, which cannot meet the carbonization process with higher temperature requirements; at the same time, because the furnace and heat-resistant insulation layer are split structures, maintenance and replacement are inconvenient. Contents of the invention

[0003] In ...

Claims

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