A preparation method of electronic grade low-oxygen ultra-high-purity titanium ultra-thin strip

An electronic-grade, ultra-thin strip technology, applied in the direction of manufacturing tools, metal rolling, metal rolling, etc., can solve the problems of high cost and high energy consumption, and achieve simple rolling process, simplified production process, easy control and The effect of the operation

Active Publication Date: 2021-11-26
ANHUI UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the problems of high cost of production equipment and high energy consumption in the existing titanium foil preparation process, and proposes a method for preparing an electronic-grade low-oxygen ultra-high-purity titanium strip. The present invention combines titanium materials The characteristics of high-strength ultra-high-purity titanium ultra-thin strips are prepared by using common production equipment, which reduces production costs and has a simple preparation process

Method used

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  • A preparation method of electronic grade low-oxygen ultra-high-purity titanium ultra-thin strip
  • A preparation method of electronic grade low-oxygen ultra-high-purity titanium ultra-thin strip

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Embodiment 1

[0038] combine figure 1 The rolling process on the left side of the example, a method for preparing an electronic-grade low-oxygen ultra-high-purity titanium strip in this embodiment can prepare an electronic-grade low-oxygen ultra-high-purity titanium plate with a thickness of 8.6 mm into a thickness of 5 μm Ultra-thin strips of electronic-grade low-oxygen ultra-high-purity titanium. Follow the steps below:

[0039] Step 1. Cut the pure titanium plate with a thickness of 8.6mm into a square pure titanium slab of 60mm×60mm, and then grind and polish the surface of the ultra-high-purity titanium slab to make the surface of the slab smooth and smooth for subsequent rolling. Make preparations.

[0040]Step 2. Send the pure titanium rolled piece obtained in step 1 into a two-roll rolling mill, and directly reduce the thickness through multi-pass cold rolling to obtain a 0.8mm pure titanium sheet. The parameters are set as follows: the surface roughness Ra of the roll is 200nm, ...

Embodiment 2

[0050] A preparation method of an electronic-grade low-oxygen ultra-high-purity titanium strip in this embodiment is to prepare an electronic-grade low-oxygen ultra-high-purity titanium plate with a thickness of 8.6 mm to obtain an electronic-grade low-oxygen ultra-high-purity titanium plate with a thickness of 30 μm. Titanium extremely thin strip, preparation process is basically the same as embodiment 1, and its difference is, the parameter of rolling process is different, specifically as follows:

[0051] Step 1, cutting the pure titanium plate with a thickness of 8.6mm into a rectangular pure titanium slab of 50mm×60mm;

[0052] Step 2, the thickness of the pure titanium sheet obtained by rolling is 1mm, and the parameters are set as follows: the roll surface roughness Ra is 160nm, the roll speed is 90mm / s, the rolling pass is 12 passes, and the pass is pressed The rate is between 7% and 20%, and the total reduction rate reaches more than 88%;

[0053] Step 3. The cleanin...

Embodiment 3

[0057] A preparation method of an electronic-grade low-oxygen ultra-high-purity titanium strip in this embodiment is to prepare an electronic-grade low-oxygen ultra-high-purity titanium plate with a thickness of 5 mm to obtain electronic-grade low-oxygen ultra-high-purity titanium with a thickness of 30 μm. Extremely thin strip, preparation process is basically the same as embodiment 1, and its difference is that the parameter of rolling process is different, specifically as follows:

[0058] Step 1, cutting the pure titanium plate with a thickness of 5mm into a rectangular pure titanium slab of 60mm×60mm;

[0059] Step 2, the thickness of the pure titanium sheet obtained by rolling is 1mm, and the parameters are set as follows: the roll surface roughness Ra is 100nm, the roll speed is 80mm / s, the rolling pass is 10 passes, and the pass is pressed The rate is between 5% and 13%, and the total reduction rate reaches more than 80%;

[0060] Step 3. The cleaning temperature of t...

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Abstract

The invention discloses a method for preparing an ultra-thin strip of electronic-grade low-oxygen ultra-high-purity titanium, and relates to the technical field of metal material processing. The steps of the present invention are: 1. Grinding and polishing treatment of pure titanium billets; 2. Sending into a two-roll rolling mill for synchronous cold rolling to obtain pure titanium sheets; 3. Decontamination, cleaning and annealing of pure titanium plates; 4. Sending into reversible four Roll asynchronous rolling mill, adjust roll speed and tension, and carry out asynchronous + tension cold rolling to obtain pure titanium thin strip; Fifth, send it to the reversible four-roll asynchronous cold rolling mill again, adjust roll gap, roll speed and tension, and carry out negative roll gap asynchronous + Tension cold rolling. The ultra-thin strip of pure titanium obtained by the present invention has a flat surface and good tensile and compressive strength, and can replace the ultra-thin strip produced by the prior art. Compared with the prior art, the present invention has lower requirements for production equipment and reduces production costs. process and production costs. For the preparation of thicker ultra-thin pure titanium strips, only the above steps 1, 2 and 4 can be used, and the quality of the prepared ultra-thin pure titanium strips is good.

Description

technical field [0001] The invention belongs to the technical field of metal material processing, and more specifically relates to a method for preparing an ultra-thin strip of electronic-grade low-oxygen ultra-high-purity titanium. Background technique [0002] The purity of electronic-grade low-oxygen ultra-high-purity titanium is above 99.999%, and its ultra-thin strip products are widely used in various fields. In fuel cell production, titanium with light weight and good corrosion resistance is the main raw material for fuel cell stack shell components; in the speaker industry, titanium foil with high strength and good ductility is the best choice for high-quality speaker sound film ; In recent years, because ultra-high-purity titanium has very good corrosion resistance and is harmless to the body, ultra-high-purity titanium foils for covering bone joints in orthopedic operations are also being developed; studies have also shown that using titanium foils to cover The co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21B1/36B21B1/40B21B27/02B21B37/00B21B45/02B21B29/00C22F1/18
CPCB21B1/36B21B1/40B21B27/021B21B29/00B21B37/00B21B45/0239B21B45/0269B21B2267/10C22F1/183
Inventor 宋孟尹理波白凤梅江杰李妍妍黄贞益刘相华
Owner ANHUI UNIVERSITY OF TECHNOLOGY
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