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Nitrogen-based atmosphere recycling device and method in gas quenching process

A nitrogen-based atmosphere and gas quenching technology, applied in quenching devices, heat treatment process control, furnace types, etc., can solve problems such as waste, increased heat treatment costs, and difficulty in nitrogen purification, so as to improve the use effect and avoid gas leakage or heat loss , to avoid the effect of gas leakage

Active Publication Date: 2022-02-25
临沂市金立机械有限公司
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Problems solved by technology

[0003] However, when nitrogen is used in the existing heat treatment, the one-time utilization method is mostly adopted. Since the purification of nitrogen gas is difficult, its economic value is high, and the non-repeated utilization method not only causes waste but also increases the cost of heat treatment.

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  • Nitrogen-based atmosphere recycling device and method in gas quenching process
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  • Nitrogen-based atmosphere recycling device and method in gas quenching process

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Embodiment Construction

[0030] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0031] Such as Figure 1-Figure 6 As shown, a nitrogen-based atmosphere recycling device in the gas quenching process according to the present invention includes a high-temperature furnace 1, a control box 2 is provided on one side of the high-temperature furnace 1, and a sealing mechanism is installed on the high-temperature furnace 1 3. Between the control box 2 and the high temperature furnace 1, a nitrogen mechanism 4, a gas supply mechanism 5 and a gas intermediary mechanism 6 are connected.

[0032] Specifically, the sealing mechanism 3 includes a sealing door 31, one end of the high-temperature furnace 1 is rotatably connected to the sealing door 31, and the high-temperature furnace 1 is slidably connected to a lever 33, and a spring 34 is ...

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Abstract

The invention relates to the technical field of nitrogen circulating devices, in particular to a nitrogen-based atmosphere recycling device in a gas quenching process. The device comprises a high-temperature furnace, wherein a control box is arranged on one side of the high-temperature furnace, a sealing mechanism is mounted on the high-temperature furnace, and a nitrogen mechanism, a gas supply mechanism and a medium gas mechanism are connected between the control box and the high-temperature furnace. Through the arrangement of the sealing mechanism, a high-temperature furnace door is conveniently driven to be self-locked, opening is convenient, meanwhile, the gas sealing performance of the high-temperature furnace is improved, and gas leakage is avoided; and through the arrangement of the nitrogen mechanism, the gas supply mechanism and the medium gas mechanism, the corresponding gas can be conveniently recycled by utilizing the density characteristic of the gas, the gas use cost of heat treatment is reduced, and resources are saved.

Description

technical field [0001] The invention relates to the technical field of nitrogen circulation devices, in particular to a nitrogen-based atmosphere recycling device and method in the gas quenching process. Background technique [0002] Most of the existing gas quenching technologies use inert gas as the cooling medium, and use low-temperature inert gas to flow over the surface of the workpiece to conduct convective heat transfer to achieve cooling of the workpiece. Compared with water quenching and oil quenching, the advantage of gas quenching is that the workpiece is cooled uniformly and the deformation is small, and the disadvantage is that the cooling capacity is insufficient. The heat transfer coefficient of liquid or nitrogen is very large, which can make up for the insufficient quenching and cooling capacity of inert gas, and the price is relatively cheap, so it is an ideal and economical quenching coolant. [0003] However, when nitrogen is used in the existing heat tr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21D1/62C21D1/767C21D9/00C21D11/00
CPCC21D1/62C21D1/767C21D9/0062C21D9/0006C21D11/00Y02P10/20
Inventor 温以民孔金花苏阳杜斌闫九祥
Owner 临沂市金立机械有限公司
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