Annealing and pickling system for stainless steel strip

A stainless steel strip and pickling technology, which is applied in the field of stainless steel, can solve the problems of acid fluctuations and large acid discharge in the pickling process, and achieve the effects of small roughness, improved machinability, and repair of crystal phase structure

Pending Publication Date: 2019-04-16
佛山市诚德新材料有限公司
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  • Abstract
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  • Claims
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Problems solved by technology

[0009] In the above pickling conditions, stainless steel strips with different speeds or thicknesses tend to fluctuate the concentration of acid, and cannot achieve a balance between the consumption of metal ions and the consumption of acid, resulting in a large amount of acid discharge in the pickling process

Method used

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  • Annealing and pickling system for stainless steel strip
  • Annealing and pickling system for stainless steel strip
  • Annealing and pickling system for stainless steel strip

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Embodiment Construction

[0067] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below.

[0068] An annealing and pickling system for stainless steel strips provided by the invention includes an annealing section and a pickling section.

[0069] Such as figure 1 As shown, the annealing section includes a heating mechanism 1, an air cooling mechanism 2, a water cooling mechanism 3 and a drying mechanism 4, wherein the heating mechanism 1 includes an inlet sealing section 11, a preheating zone 12, a heating zone 13 and an outlet sealing section 14 , the inlet sealing section 11 and the outlet sealing section 14 encapsulate the preheating zone 12 and the heating zone 13 as a closed mechanism, and the heating zone 13 is provided with heating nozzles, and the heating nozzles eject flames to heat the stainless steel strip , and generate flue gas to make the stainless steel strip from T 1 Heating to 1...

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Abstract

The invention discloses an annealing and pickling system for a stainless steel strip. The annealing and pickling system comprises a heating mechanism, an air cooling mechanism, a water cooling mechanism, a drying mechanism, a first electrolytic cell, a first pickling tank, a second pickling tank, a third pickling tank, rinsing equipment and drying equipment, wherein the heating mechanism comprisesan inlet seal section, a preheating zone, a heating zone and an outlet seal section, a heating nozzle is arranged on the heating zone, and the heating nozzle sprays out the flame to heat the stainless steel strip and produce the flue gas; and the preheating zone pre-heats the stainless steel strip through the convection and radiation of the flue gas, the heat source of the drying mechanism is theflue gas and residual heat generated for the heating mechanism, and the first electrolytic cell, the first pickling tank, the second pickling tank and the third pickling tank conduct electrolytic andthree-stage pickling treatment on the stainless steel strip. By means of the annealing and pickling system, the structure is simple, the traditional annealing and pickling process is simplified, themechanical properties of the finished product of the stainless steel strip are high, the heat energy consumption is lower, and the energy saving effect is significant.

Description

technical field [0001] The invention relates to the technical field of stainless steel, in particular to an annealing and pickling system for stainless steel strips. Background technique [0002] Stainless steel strip is an extension of ultra-thin stainless steel plate. It is mainly a narrow and long steel plate produced to meet the needs of industrial production of various metal or mechanical products in different industrial sectors. It is widely used in high-tech industries, IT industries, and Aviation and aerospace industries have high added value, but the rolling process is difficult to master, because internal stress will be generated inside the stainless steel strip after the initial rolling, which affects the effect of finishing rolling and has a great impact on the forming of the finished product. The finished products have different requirements on hardness, which increases the difficulty of the rolling process, the production efficiency is low, and the finished pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23G3/02C21D9/52C21D1/26
CPCC23G3/02C21D1/26C21D9/52
Inventor 刘一坤章诗军罗勇
Owner 佛山市诚德新材料有限公司
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