Well-type vacuum furnace

A vacuum furnace and well-type technology, applied in the field of well-type vacuum furnaces, to achieve the effects of long service life, good furnace temperature uniformity and reasonable design

Inactive Publication Date: 2015-12-30
江苏邦泰炉业有限公司
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Problems solved by technology

[0003] In view of the above problems, the object of the present invention is to provide a well-type vacuum furnace, which is used for vacuum non-oxidation annealing heat treatment of metal materials. During high-temperature annealing, the oxygen in the furnace is extracted through a vacuum tube, and the water protection system protects and vacuums the tube. The connected vacuum pump effectively solves the service life problem of the vacuum sealing device in the high temperature environment

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  • Well-type vacuum furnace

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Embodiment Construction

[0012] Depend on figure 1 Known, a pit-type vacuum furnace is composed of a furnace body 1, an inner tank 2 and a furnace cover 3, the furnace body 1 includes a furnace base 4, a furnace shell 5 and a furnace lining 6, and the furnace shell 5 is fixed on the furnace base 4 Above, the furnace shell 5 has a furnace surrounded by a furnace lining 6, and the inner tank 2 is arranged in the furnace. The bottom of the furnace is fixed with refractory bricks, and a barrel-shaped stainless steel inner tank 2 is fixed on the refractory bricks. The inner tank 2 opens toward In general, high-strength refractory bricks have sufficient strength to withstand pressure and have good high-temperature resistance. The furnace cover 3 is fixedly equipped with a fan device 7, a hanger 8, a manual valve 9, a protective gas pipe 11, and a vacuum tube 12. For opening and closing the furnace cover 3 and the furnace body 1, a sealing ring is provided between the furnace cover 3 and the inner tank 2, ...

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Abstract

A well-type vacuum furnace comprises a furnace body (1), an inner container (2) and a furnace lid (3), wherein the furnace body (1) comprises a furnace base (4), a furnace shell (5) and a furnace lining (6); the furnace shell (5) is fixed on the furnace base (4); a hearth surrounded by the furnace lining (6) is formed in the furnace shell (5); the inner container (2) is arranged in the hearth; a blower device (7), a lifting frame (8), a hand-operated valve (9), a protective gas inflation pipe (11) and a vacuumizing pipe (12) are fixed on the furnace lid (3). The well-type vacuum furnace is characterized in that a water protecting system (14) is connected onto the vacuumizing pipe (12) on the furnace lid (3); the hand-operated valve (9) is switched on to perform high-temperature vacuumizing; a vacuum pump connected with the vacuumizing pipe (12) is protected by the water protecting system (14). The well-type vacuum furnace is lighter, better in sealing effect, and higher in equipment use efficiency, and has the advantage that no oxide skin is generated on an annealed workpiece.

Description

technical field [0001] The invention relates to the technical field of industrial heat treatment furnaces, in particular to a well-type vacuum furnace. technical background [0002] For the annealing heat treatment of non-ferrous metals and other materials, the existing technology mostly uses ordinary bell-type furnaces or well-type oxidation annealing furnaces, which have low work efficiency and high energy consumption. high temperature next happens oxidation , and the surface is prone to form oxide skin corrosion products . Contents of the invention [0003] In view of the above problems, the object of the present invention is to provide a well-type vacuum furnace, which is used for vacuum non-oxidation annealing heat treatment of metal materials. During high-temperature annealing, the oxygen in the furnace is extracted through a vacuum tube, and the water protection system protects and vacuums the tube. The connected vacuum pump effectively solves the problem of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21D1/773C21D1/26
Inventor 杨国忠
Owner 江苏邦泰炉业有限公司
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