Production process of pure-titanium cold-rolled bright-surface titanium belt

A production process and bright surface technology, applied in the direction of manufacturing tools, metal rolling, furnace types, etc., can solve the problems of low yield rate, surface quality, poor thermal conductivity of titanium strips, surface bonding of titanium strips, etc., to avoid linear The effect of reducing the production cycle and improving the yield

Pending Publication Date: 2022-04-19
新疆湘润新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The titanium strip is annealed in a bell furnace. Because of the poor thermal conductivity of the titanium strip and the uneven heat conduction between the layers of the titanium coil, it is easy to cause bonding problems on the surface of the titanium strip.
[0004] The production technology difficulties in the above aspects lead to long production cycle, high production cost, low yield and surface quality problems, etc.

Method used

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  • Production process of pure-titanium cold-rolled bright-surface titanium belt
  • Production process of pure-titanium cold-rolled bright-surface titanium belt
  • Production process of pure-titanium cold-rolled bright-surface titanium belt

Examples

Experimental program
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Effect test

Embodiment 1

[0034] A pure titanium cold-rolled bright titanium strip production process, comprising the following steps:

[0035] S1, slab hot rolling

[0036] Heat the slab on a heating furnace at a heating temperature of 870°C and a holding time of 260 minutes; then carry out rough rolling and finish rolling in sequence to obtain black-skinned titanium coils;

[0037] The rough rolling adopts a four-high reversible rolling mill; the slab is rolled from 200mm to 35mm, 5 rolling passes, the total deformation is 80%, and the single pass deformation is 16%, to obtain the rough rolling blank;

[0038] The finish rolling adopts a coil finish rolling mill or an eight-stand four-high finish rolling mill; the rough rolling billet is rolled from 35mm to 4.5mm, with a thickness tolerance of -0.20mm, 7 rolling passes, and a total deformation of 83%. The pass deformation is 11.85%, and the final rolling temperature is 700°C;

[0039] S2, black skin titanium coil intermediate annealing and shot bla...

Embodiment 2

[0053] A pure titanium cold-rolled bright titanium strip production process, comprising the following steps:

[0054] S1, slab hot rolling

[0055] Heat the slab on a heating furnace at a heating temperature of 890°C and a holding time of 300 minutes; then carry out rough rolling and finish rolling in sequence to obtain black-skinned titanium coils;

[0056] The rough rolling adopts a four-roll reversible rolling mill; the slab is rolled from 220mm to 40mm, 7 rolling passes, the total deformation is 85%, and the single pass deformation is 12.14%, to obtain the rough rolling blank;

[0057] The finish rolling adopts a coil finish rolling mill or an eight-stand four-high finish rolling mill; the rough rolling billet is rolled from 40mm to 5.5mm, with a thickness tolerance of 0.20mm, 8 rolling passes, and a total deformation of 89%, a single pass The deformation amount is 11.13%, and the final rolling temperature is 705°C;

[0058] S2, black skin titanium coil intermediate anne...

Embodiment 3

[0072] A pure titanium cold-rolled bright titanium strip production process, comprising the following steps:

[0073] S1, slab hot rolling

[0074] Heat the slab on a heating furnace at a heating temperature of 880°C and a holding time of 280 minutes; then carry out rough rolling and finish rolling in sequence to obtain black-skinned titanium coils;

[0075] The rough rolling adopts a four-roll reversible rolling mill; the slab is rolled from 210mm to 38mm, 6 rolling passes, the total deformation is 82%, and the single pass deformation is 13.67%, to obtain the rough rolling blank;

[0076] The finish rolling adopts a coil finish rolling mill or an eight-stand four-high finish rolling mill; the rough rolling billet is rolled from 38mm to 5mm, with a thickness tolerance of 0.15mm, 7 rolling passes, a total deformation of 86%, and a single pass deformation The content is 12.28%, and the final rolling temperature is 735°C;

[0077] S2, black skin titanium coil intermediate annea...

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Abstract

The invention relates to the technical field of titanium coil production, and particularly discloses a pure-titanium cold-rolled bright-surface titanium strip production process which comprises the following steps: S1, heating a plate blank on a heating furnace, and then carrying out rough rolling and finish rolling to obtain a black-skin titanium coil; s2, intermediate annealing and shot blasting pickling are conducted on the obtained black-skin titanium roll on the hot line, and a pickled white roll is obtained; s3, cold rolling is conducted on the acid-washed white roll obtained in the step S2, and a cold-rolled titanium roll with the surface roughness Ra smaller than or equal to 0.6 micrometer is obtained; s4, the cold-rolled titanium coil is subjected to degreasing treatment on a degreasing line, and the degreasing uncoiling tension and the degreasing coiling tension are both 5-20 kN; s5, putting the cold-rolled titanium coil which is degreased cleanly into a vertical bell-type furnace, and performing recrystallization annealing treatment in an argon protective atmosphere; s6, the cold-rolled titanium coil treated in the step S5 is subjected to flattening treatment on a flattening machine, and the cold-rolled bright-surface titanium belt is obtained; the problems that a cold-rolled titanium strip manufactured through an existing process is high in surface roughness, the strip shape is difficult to control, and the strip shape is uneven can be solved.

Description

technical field [0001] The invention relates to the technical field of titanium coil production, in particular to a production process of pure titanium cold-rolled titanium strip with bright surface. Background technique [0002] Pure titanium has high specific strength, low density, high strength, good corrosion resistance and formability, among which 3.0-4.0mm pure titanium cold-rolled bright-faced titanium strips are flat, compared with traditional 3.0-4.0mm cold-rolled bright-faced titanium Due to the short production cycle, low production cost, high dimensional tolerance accuracy and good product uniformity, it has been widely used and favored in civilian fields such as home appliance manufacturing, tableware and kitchenware, sports industry and medical equipment. [0003] At present, the production process of 3.0-4.0mm pure titanium cold-rolled bright titanium strip in the industry is very difficult. It is difficult to control the shape of the board, and it is easy to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B1/26C21D1/26C21D8/00C21D9/52C22F1/18C23G1/10C23G3/02
CPCB21B1/26C21D1/26C21D8/00C21D9/52C22F1/183C23G3/027C23G1/106C23G3/023
Inventor 张平平王欣魏东东张磊康伟国王伟
Owner 新疆湘润新材料科技有限公司
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