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Stainless steel strip bell type annealing furnace

A bell-type annealing furnace, stainless steel technology, applied in bell-type furnaces, furnaces, furnace types and other directions, can solve the problems affecting the quality of stainless steel strips, surface oxidation of stainless steel strips, uneven annealing temperature, etc., to achieve consistent mechanical properties The effect of ensuring stability, sufficient heat convection and uniform temperature

Inactive Publication Date: 2010-06-23
常熟市长江不锈钢材料有限公司
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AI Technical Summary

Problems solved by technology

[0003] The stainless steel strip is annealed in a box furnace, and the annealing temperature is uneven. Due to the lack of protective gas, the surface oxidation of the stainless steel strip is serious, resulting in pitting on the surface of the steel strip, which seriously affects the quality of the stainless steel strip.

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  • Stainless steel strip bell type annealing furnace
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Embodiment Construction

[0008] figure 1 It is a schematic diagram of the overall structure of a specific embodiment of the present invention, combined below figure 1 The embodiments of the present invention are introduced.

[0009] Such as figure 1 As shown, the stainless steel bell-type annealing furnace provided by the embodiment of the present invention comprises a furnace body (1), the bottom of the furnace body (1) is provided with a high-speed convection fan (2), and the furnace body (1) is passed through a conveying pipe (3) Connect the ammonia decomposition gas generator (4), and the ammonia decomposition gas generator (4) is connected to the ammonia decomposition generation controller (5).

[0010] The stainless steel belt bell-type annealing furnace provided by the embodiment of the present invention uses a delivery pipe to transport the ammonia decomposition gas generated by the ammonia decomposition gas generator to the furnace body, so that the ammonia decomposition gas is used as the ...

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Abstract

The invention provides a stainless steel strip bell type annealing furnace which comprises a furnace body (1). A high speed convection fan (2) is arranged at the bottom of the furnace body (1), the furnace body (1) is connected with an ammonia decomposition gas generator (4) through a delivery pipe (3), and the ammonia decomposition gas generator (4) is connected with an ammonia decomposition gas generation controller (5). In the stainless steel strip bell type annealing furnace, ammonia decomposition gas generated by the ammonia decomposition gas generator is transported into the furnace body by utilizing the delivery pipe as the protective gas of a stainless steel strip, thereby ensuring no oxidation phenomenon on the surface of the stainless steel strip and enabling a next pickling procedure to be easier to carry out; and meanwhile, the high speed convection fan is arranged at the bottom of the furnace body and fully carries out thermal convection in the furnace body, thereby enabling the temperature in the furnace body to be uniform and ensuring an annealing process to be normally finished. The consistency of the mechanical property of the stainless steel strip using the stainless steel strip bell type annealing furnace can be ensured.

Description

technical field [0001] The invention relates to an annealing furnace, in particular to a stainless steel belt bell type annealing furnace. Background technique [0002] Stainless steel strips need to be annealed after hot rolling and cold rolling, and box furnaces are generally used for annealing at present. [0003] The stainless steel strip is annealed in a box furnace, and the annealing temperature is uneven. Due to the lack of protective gas, the surface oxidation of the stainless steel strip is serious, resulting in pitting on the surface of the steel strip, which seriously affects the quality of the stainless steel strip. Contents of the invention [0004] In view of the above-mentioned defects, the stainless steel strip bell-type annealing furnace provided by the present invention adopts ammonia decomposition gas as the protective gas, thereby ensuring that there is no oxidation phenomenon on the surface of the stainless steel strip, and making the next pickling pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21D9/663F27B11/00
Inventor 金振华钱响忠王雪根孙传国
Owner 常熟市长江不锈钢材料有限公司
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