Preparing process of titanium strip coil used for high-end anode

A preparation process and anode technology, applied in the direction of metal rolling, metal processing equipment, etc., can solve problems such as uneven coating, unenvironmental protection in the production process, unstable etching effect, etc., achieve uniform temperature in the furnace, shorten annealing time, The effect of high annealing efficiency

Inactive Publication Date: 2020-02-21
湖南湘投金天钛金属股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the conductivity of the titanium electrode plates currently produced can meet the requirements, the etching effect is unstable, the coating is uneven, and the surface of some titanium electrode plates is pickled, so the production process is not environmentally friendly.

Method used

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  • Preparing process of titanium strip coil used for high-end anode
  • Preparing process of titanium strip coil used for high-end anode
  • Preparing process of titanium strip coil used for high-end anode

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] This example provides a preparation process of titanium coils for high-end anodes, the preparation process steps include:

[0042] S1: After forging the titanium ingot into a slab and keeping it warm, the slab is obtained;

[0043] S2: Perform hot rough rolling and finish rolling on the slab to obtain hot coils, and perform online annealing treatment on the hot coils to obtain hot rolled coils;

[0044] S3: Surface treatment and rolling in the first rolling pass are performed sequentially on the hot-rolled coils to obtain cold-rolled coils of the first thickness;

[0045] S4: After performing continuous annealing, surface treatment and rolling in the second rolling process in sequence, the cold-rolled coil of the first thickness is obtained to obtain the cold-rolled coil of the second thickness;

[0046] S5: After degreasing the surface of the cold-rolled coil with the second thickness, anneal the finished product, and after smoothing, the titanium coil for high-end an...

Embodiment 2

[0060] In this example, according to the preparation process of Example 1, a titanium coil for high-end anodes was prepared. Specifically:

[0061] S1: Select grade 0 sponge titanium with a Brinell hardness of 105HB for mixing. The content of main impurities in the sponge titanium after mixing is: Fe content 0.04wt%, O content 0.05wt%, N content 0.007wt%. The titanium ingot was smelted in a furnace, and then the titanium ingot was forged into a slab with a thickness of 180mm. The chemical composition of the slab was tested, and the contents were: Fe content 0.04%, O content 0.052%, N content 0.0071%, and the Brinell hardness of the slab was 110HB, then keep the slab at 860°C for heating, holding time 6h;

[0062] S2: rolling the slab processed in step S1 to a thickness of 3.6mm after hot rough rolling and finish rolling, and then performing online annealing in a continuous annealing furnace at an annealing temperature of 740°C;

[0063] S3: The hot-rolled coil after continuo...

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Abstract

The embodiment of the invention provides a preparing process of a titanium strip coil used for a high-end anode. The preparing process comprises two rolling processes, the size and the uniformity of grains of a finished product are controlled conveniently, surface defects of the produced titanium coil are less, compared with first rolling process rolling, namely a hot rolling coil is directly rolled to the thickness of a second-thickness cold rolling coil, the pausing does not occur in the middle, and if continuous annealing and surface treatment are carried out firstly, and then second rolling process rolling is carried out, the surface defects of the finally obtained finished product are more. After the finished product is annealed, then flatten treatment is conducted, and then an oxidelayer on the surface of the titanium coil is uniformly crushed, so that a more consistent condition is provided for the etching of the subsequent titanium coil, the etching effect can be improved, thesurface color of an etched titanium plate is consistent, and finally, the titanium plate coating is better facilitated.

Description

technical field [0001] The invention belongs to the technical field of titanium plate production, and in particular relates to a preparation process of titanium coils for high-end anodes. Background technique [0002] In the electrochemical process, titanium anode has good corrosion resistance and high catalytic activity, and can maintain the stability of size and shape in the electrolysis process, and is widely used in electroplating, chlor-alkali industry, wastewater treatment, organic electrosynthesis and cathode areas of protection. [0003] The use of titanium plates as anodes in electrolytic cells has a long history. The consumption of titanium anode plates in the plasma membrane electrolyzer is very large, the domestic annual demand is higher than 500 tons, while the annual demand abroad is more than 2000 tons. Corrosion of the titanium anode plate will lead to frequent shutdown of the electrolyzer for maintenance, which will affect the stable operation of the devic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21C37/02B21J5/00B21B1/22C22F1/18
CPCB21B1/22B21B2001/225B21C37/02B21J5/002C22F1/183
Inventor 张孝军刘正乔杨程刘晓辉韩聪江彪陈兵陈彦辉盛强吴志平
Owner 湖南湘投金天钛金属股份有限公司
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