A gas-sealed gas-saving tunnel furnace

A technology of hermetic sealing and tunnel furnace, which is applied in the field of tunnel furnace, can solve the problems of protective atmosphere leakage and waste, and achieve good energy saving and good protection effect

Active Publication Date: 2022-07-12
JIAXING HEYI IND RESISTANCE FURNACE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above-mentioned related technologies, the inventor believes that during the operation of the equipment, the protective atmosphere is more likely to overflow from the entrance and exit of the tunnel furnace, resulting in leakage and waste of the protective atmosphere

Method used

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  • A gas-sealed gas-saving tunnel furnace
  • A gas-sealed gas-saving tunnel furnace
  • A gas-sealed gas-saving tunnel furnace

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] refer to figure 1 , the gas-sealed gas-saving tunnel furnace includes a furnace body 1 with an inlet channel 11 and an outlet channel 12 formed at the beginning and end, and a conveying device 2 passing through the interior of the furnace body 1. The furnace body 1 includes a high-temperature heating section 3 and connected to both ends of the high-temperature heating section 3. The height of the gas sealing section 4, the high temperature heating section 3 is higher than the height of the two gas sealing sections 4, and the height of the two gas sealing sections 4 is kept the same, so that the protective gas of light specific gravity can be filled in the high temperature heating section 3, and The high specific gravity protective gas can be filled in the gas sealing section 4, and the high specific gravity protective gas in the gas sealing section 4 can have a gas sealing effect on the light specific gravity protective gas in the high temperature heating section 3, redu...

Embodiment 2

[0042] refer to figure 2 , the gas-sealed gas-saving tunnel furnace, the difference from Example 1 is that the height of the high-temperature heating section 3 is lower than the height of the gas-sealed section 4, so that the protective gas with high specific gravity is filled in the high-temperature heating section 3, and the light-specific gravity The protective gas can be filled in the gas sealing section 4, and the light specific gravity protective gas in the gas sealing section 4 can have a gas sealing effect on the high specific gravity protective gas in the high temperature heating section 3, reducing the overflow of the high specific gravity protective gas. Improve the solar term effect.

[0043] The implementation principle of Example 2 is as follows: the furnace body 1 is M-shaped as a whole. Before starting to use, a protective gas with a high specific gravity is filled into the high-temperature heating section 3, so that the oxygen in the high-temperature heating ...

Embodiment 3

[0045] refer to image 3 , The gas-sealed gas-saving tunnel furnace differs from Embodiment 1 in that a plurality of furnace bodies 1 are provided and connected in sequence, so the furnace body 1 is a high-temperature heating section 3 and a gas-sealing section 4 arranged at intervals.

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Abstract

The application relates to a gas-sealed gas-saving tunnel furnace, which includes a furnace body with an inlet channel and an outlet channel formed at the beginning and the end, and a conveying device passing through the interior of the furnace body. The furnace body includes a high-temperature heating section and two connected to the high-temperature heating section. There is a height difference between the high temperature heating section and the hermetic sealing section. The present application has the effect of improving solar terms.

Description

technical field [0001] The present application relates to the field of tunnel furnaces, in particular to a gas-sealed gas-saving tunnel furnace. Background technique [0002] One of the key development directions of heat treatment production technology is controllable atmosphere heat treatment, which uses controllable atmosphere to achieve non-oxidative heat treatment. In the small variety and mass production, especially the bright quenching, annealing, carburizing quenching, carbonitriding quenching and gas carbonitriding of carbon steel and general alloy structural steel parts are still mainly controlled in a controlled atmosphere. [0003] In the controllable atmosphere heat treatment, a tunnel furnace is often used, and the workpiece is transported by the conveying device in the tunnel furnace, and the workpiece is heated and cooled. The surface of the workpiece is oxidized. The commonly used protective gas is hydrogen, which is filled in the tunnel with hydrogen to eva...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F27B9/02F27B9/24F27B9/30F27D7/00
CPCF27B9/02F27B9/243F27B9/30F27D7/00
Inventor 杨学礼杨晓东
Owner JIAXING HEYI IND RESISTANCE FURNACE CO LTD
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