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Tunnel type oriented silicon steel continuous high-temperature annealing process

A high-temperature annealing technology for oriented silicon steel, applied in manufacturing tools, heat treatment equipment, furnaces, etc., can solve the problems of large heat loss and waste of production time, and achieve the effect of reducing energy consumption and improving annealing efficiency

Active Publication Date: 2017-02-22
BAOTOU WEIFENG NEW MATERIAL CO LTD
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  • Summary
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Problems solved by technology

[0002] The existing annealing of oriented silicon steel usually completes the annealing of the whole roll of silicon steel in one furnace, which has a large heat loss, and the annealing furnace is in an empty state during the refueling process, which wastes production time. How to realize the continuous production of curved oriented silicon steel is a a burning problem

Method used

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Embodiment Construction

[0022] A continuous high-temperature annealing process for tunnel-type oriented silicon steel of the present invention is performed according to the following steps:

[0023] The first step: loading; place the prefabricated steel coil on the trolley, and buckle the steel coil with a sealing cover to ensure that the steel coil is in a sealed environment;

[0024] The second step: filling the furnace; move the trolley loaded with steel coils to the entrance of the annealing furnace through the auxiliary rail, and push the trolley into the annealing furnace through a hydraulic push rod;

[0025] The third step: annealing treatment; including low temperature zone, heating zone and high temperature zone;

[0026] The temperature in the low temperature zone is 550°C to 600°C, and the temperature is kept for 20h to 30h, and nitrogen and ammonia decomposition gas are sequentially introduced into the sealed cover of the low temperature zone;

[0027] The temperature in the heating zon...

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Abstract

The invention discloses a tunnel type oriented silicon steel continuous high-temperature annealing process. Continuous annealing production of oriented silicon steel is achieved, and the problem of a long production cycle is solved, and the energy consumption is reduced. According to the adopted technical scheme, the tunnel type oriented silicon steel continuous high-temperature annealing process comprises the following steps of loading; furnace filling: a trolley loaded with a steel coil is moved to the inlet position of an annealing furnace through a laid rail, and is pushed into the annealing furnace through a hydraulic push rod; annealing treatment; cooling; discharging; unloading; trolley overhauling; and executing the above steps repeatedly to achieve continuous annealing treatment, wherein protection gas is introduced into sealing covers of the oriented silicon steel in the whole annealing furnace. The tunnel type oriented silicon steel continuous high-temperature annealing process can be widely applied to the field of oriented silicon steel continuous annealing furnaces.

Description

technical field [0001] The invention relates to a tunnel-type continuous high-temperature annealing process for oriented silicon steel, which belongs to the technical field of continuous annealing furnaces for oriented silicon steel. Background technique [0002] The existing annealing of oriented silicon steel usually completes the annealing of the whole roll of silicon steel in one furnace, which has a large heat loss, and the annealing furnace is in an empty state during the refueling process, which wastes production time. How to realize the continuous production of curved oriented silicon steel is a A problem that needs to be solved. Contents of the invention [0003] The invention overcomes the shortcomings of the prior art, provides a tunnel-type continuous high-temperature annealing process for oriented silicon steel, realizes the continuous annealing production of oriented silicon steel, solves the production cycle and reduces energy consumption. [0004] In order...

Claims

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Application Information

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IPC IPC(8): C21D1/26C21D1/74C21D9/52
CPCC21D1/26C21D1/74C21D9/52
Inventor 刘鹏程刘宝志李刚喻光明王强
Owner BAOTOU WEIFENG NEW MATERIAL CO LTD
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