A thermal annealing and pickling method for wide and thick stainless steel coils
A stainless steel and thermal annealing technology, which is applied in the field of metallurgy, can solve the problems such as the difficulty of warping the head and tail of stainless steel wide and thick plates, and achieve the effects of eliminating warping deformation, reducing safety hazards, and facilitating production
Active Publication Date: 2020-07-14
ZHANGJIAGANG POHANG STAINLESS STEEL
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Problems solved by technology
[0004] The invention provides a simple and safe stainless steel wide and thick plate coil thermal annealing and pickling method to solve the problem that the head and tail of the stainless steel wide and thick plate are tilted due to the tension roller, and it is difficult to normally feed the material and penetrate into the follow-up equipment
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[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0029] A thermal annealing and pickling method for stainless steel wide and thick plate coils of the present invention comprises the following steps: 100 stainless steel wide and thick plate coils are uncoiled at the entrance, welding, continuous annealing, scale breaking, shot blasting, pickling, smoothing, and curling at the exit. The stainless steel wide and thick plate coils 100 to be processed are sequentially conveyed by the conveying mechanism in steps a...
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The invention relates to a stainless steel wide and thick plate coil hot annealing acid-cleaning method. The stainless steel wide and thick plate coil hot annealing acid-cleaning method comprises the step of outlet curling. The outlet curling step comprises the substeps that a stainless steel wide and thick plate coil is pushed forwards so as to enable the head of the stainless steel wide and thick plate coil to penetrate a steering roller, and the head of the stainless steel wide and thick plate coil is downwards bent through the steering roller; the stainless steel wide and thick plate coil is rolled back so as to enable the stainless steel wide and thick plate coil to move backwards, the stainless steel wide and thick plate coil is cut off at the position of the welding line to form a front plate and a back plate, and the front plate is located in front of the back plate; the front plate is pushed forwards, and the front plate sequentially penetrates a first device and the steering roller and enters a second device to be subject to subsequent processing. The stainless steel wide and thick plate coil can smoothly penetrate into the subsequent machining device, production is facilitated, the potential safety hazard is greatly reduced, and operation safety of an operator can be ensured.
Description
technical field [0001] The invention belongs to the technical field of metallurgy, and in particular relates to a thermal annealing and pickling method for stainless steel coils, in particular to a continuous thermal annealing and pickling method for wide and thick stainless steel coils. Background technique [0002] With the development of energy industry and heavy chemical industry, the consumption of wide and thick plates is increasing year by year. In order to meet the demand for wide and thick plates in the manufacture of oil, gas and other energy transmission pipelines and pressure vessels, especially for stainless steel with a thickness of 12.7-20mm and a width of 1500-2000mm. The existing production methods of stainless steel wide and thick plates mainly adopt the production methods of sheet rolling and annealing and coil rolling and continuous annealing. [0003] Such as Figures 1 to 3 As shown, large thickness and wide width of steel plate are important character...
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IPC IPC(8): C21D9/56C21D1/26C23G3/02
CPCC21D1/26C21D9/56C21D9/562C21D9/563C23G3/026C23G3/027
Inventor 郑刚平
Owner ZHANGJIAGANG POHANG STAINLESS STEEL