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Method for preparing wide range pure nickel cold rolling coiled material

A technology of pure nickel and coils, which is applied in the field of preparation of wide-width pure nickel cold-rolled coils, can solve the problems of dependence on imports and inability to produce independently, and achieve the effect of good shape, simple method, and smooth surface quality

Active Publication Date: 2013-02-13
WESTERN TITANIUM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the limitations of equipment and technology in China, the high-quality wide-width thin nickel plates used in the ion-exchange membrane soda production equipment have not been able to produce independently, and have long relied on imports

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] 2.0mm×1200mm, preparation of N4 pure nickel cold-rolled coil with a weight of 3t:

[0028] Step 1. Atmospheric annealing is carried out on the N4 pure nickel hot-rolled plate with a thickness of 5.0 mm and a width of 1100 mm. The temperature of the annealing treatment is 700° C., and the time of the annealing treatment is 1.5 hours;

[0029] Step 2, using a four-roll reversible cold rolling mill to carry out cold rolling and descaling of the N4 pure nickel hot-rolled sheet after the annealing treatment in step 1 to break the scale, and then perform cold-rolled and descaled pure nickel hot-rolled sheet The pickling treatment completely removes the oxide skin on the surface of the pure nickel hot-rolled sheet to obtain a sheet with a thickness of 4.5 mm; Soak in the solution for 5min to 30min, take it out, wash it with high-pressure water to remove the scale on the surface of the pure nickel hot-rolled plate, and dry it. The pickling solution is made by mixing the followi...

Embodiment 2

[0037] 1.5mm×1200mm, the preparation of N5 pure nickel cold-rolled coil with a weight of 3t:

[0038] Step 1. Atmospheric annealing is performed on N5 pure nickel hot-rolled plates with a thickness of 4.5 mm and a width of 1100 mm. The annealing temperature is 700° C. and the annealing time is 1 h;

[0039] Step 2, using a four-roll reversible cold rolling mill to carry out cold rolling and descaling of the N5 pure nickel hot-rolled sheet after the annealing treatment in step 1 to break the scale, and then perform cold-rolled and descaled pure nickel hot-rolled sheet The pickling treatment completely removes the scale on the surface of the pure nickel hot-rolled sheet to obtain a sheet with a thickness of 4.0mm; the method of the pickling treatment is: soak the pure nickel hot-rolled sheet in a pickling solution at a temperature of 40°C 10min, after taking it out, wash it with high-pressure water to remove the scale on the surface of the pure nickel hot-rolled plate, and dry i...

Embodiment 3

[0047] 1.0mm×1300mm, preparation of N6 pure nickel cold-rolled coil with a weight of 3t:

[0048] Step 1. Atmospheric annealing is carried out on the N6 pure nickel hot-rolled plate with a thickness of 4.5mm and a width of 1200mm. The temperature of the annealing treatment is 750°C, and the annealing treatment time is 1h;

[0049] Step 2, using a four-roll reversible cold rolling mill to carry out cold rolling and descaling of the N6 pure nickel hot-rolled sheet after the annealing treatment in step 1 to break the scale, and then perform cold-rolled and descaled pure nickel hot-rolled sheet The pickling treatment completely removes the scale on the surface of the pure nickel hot-rolled sheet to obtain a sheet with a thickness of 4.0mm; the method of the pickling treatment is: soak the pure nickel hot-rolled sheet in a pickling solution at a temperature of 40°C 20min, after taking it out, wash it with high-pressure water to remove the scale on the surface of the pure nickel hot...

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Abstract

The invention discloses a method for preparing a wide range pure nickel cold rolling coiled material. The method includes the following steps of (1) subjecting pure nickel hot rolled plates to atmosphere annealing treatment; (2) subjecting the pure nickel hot rolled plates to cold rolling scale breaking, and removing oxide-scales by acid pickling to obtain plates; (3) cutting and trimming heads and tails of multiple plates on a finishing machine, then performing plasma tailor welding, and rolling to obtain a rolled billet; (4) rolling the rolled billet for one rolling process to obtain a coiled material; (5) performing oil removal processing; (6) performing vacuum annealing treatment; and (7) uncoiling, and cutting and removing head and tail leading tape portions to obtain the wide range pure nickel cold rolling coiled material, or repeating the steps (4), (5) and (6) once, uncoiling, and cutting and removing the head and tail leading tape portions to obtain the wide range pure nickel cold rolling coiled material. The method has the advantages that the method is simple, the industrialized production is easy to achieve, the pure nickel coiled material with the thickness of 0.5mm to 2.0mm and the breadth of 1200mm to 1400mm can be prepared through one to two times of cold rolling, and the blank of domestic wide range pure nickel coiled material is filled.

Description

technical field [0001] The invention belongs to the technical field of coil preparation, and in particular relates to a preparation method of a wide-width pure nickel cold-rolled coil. Background technique [0002] Nickel has good mechanical properties, good corrosion resistance, especially resistance to chloride ion and alkali corrosion, and has good pressure processing performance under cold and hot conditions. Nickel processing materials are widely used in chlor-alkali chemical industry and other industries. Due to the limitations of equipment and technology in China, the high-quality wide-width thin nickel plates used in the ion-exchange membrane soda production equipment have not been able to produce independently, and have long relied on imports. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a method for preparing wide-width pure nickel cold-rolled coils with a thickness of 0.5 mm to 2.0 mm and a width of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21C37/02
Inventor 席锦会刑义胜舒滢戴毅谢文龙刘客岐张晓卫王军刚隋永忠李辉
Owner WESTERN TITANIUM TECH
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