CN102409352A - Continuous acid washing process method for titanium tape reel - Google Patents
Continuous acid washing process method for titanium tape reel Download PDFInfo
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- CN102409352A CN102409352A CN2011103586124A CN201110358612A CN102409352A CN 102409352 A CN102409352 A CN 102409352A CN 2011103586124 A CN2011103586124 A CN 2011103586124A CN 201110358612 A CN201110358612 A CN 201110358612A CN 102409352 A CN102409352 A CN 102409352A
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Abstract
The invention discloses a continuous acid washing process method for a titanium tape reel. After the titanium tape reel is opened at the speed 1-10 meters per minute, the method comprises the following process steps of: (1) pre-cleaning; (2) cleaning with acid; (3) bleaching; and (4) drying. The method has the characteristics and beneficial effects: an oxide scale on the surface of the titanium tape reel is washed off completely after acid washing, the over-acid phenomenon is avoided, the surface of the titanium tape reel is greyish-white, and the surface quality is good; the yield of the titanium tape reel is high after acid washing; compared with a titanium plate serving as a welded pipe production raw material, the acid-washed titanium tape reel serving as a welded pipe production raw material has the advantages of great increase in the length of a produced welded pipe, great reduction in welding seams and higher performance; and the method is simple, is easy to operate, and has high practicability.
Description
Technical field
The invention belongs to surface and the metal material surface chemical treatment method that reaction solution reacts, relate to a kind of titanium strip coil continuous pickling technology.Mainly be applicable to the production of the titanium or titanium alloy roll coil of strip.
Background technology
Titanium or titanium alloy is a kind of novel material of excellent performance; Have plurality of advantages such as density is little, tensile strength is high, excellent corrosion-proof performance, resistance to elevated temperatures is good, thermal conductivity is little, be used widely at civil areas such as aerospace, war industry and chemical industry, oil, ocean, physical culture.
In the prior art, titanium or titanium alloy sheet material is that lumber recovery is low, can not realize the continuous production of titanium or titanium alloy with the rolling form production of veneer, and when the titanium or titanium alloy plate prepared titanium welding pipe, weld seam was too much, to the use properties generation detrimentally affect of titanium welding pipe.Wherein the removal of titanium or titanium alloy plate surface oxide layer and oxygen-rich layer is the two-step approach that adopts " fusion alkaline bath+acid soak ", and surface local is prone to the residual most oxide debris of not washing after the alkali pickling, surperficial peracid phenomenon occurs.During the alkali pickling, level of response is difficult to accurate control, and metal loss is big, can't the realization response process hermetically sealed, environmental pollution is serious.Because titanium is the metal with good hydrogen-absorbing ability, titanium or titanium alloy sheet material is prone to take place to inhale the hydrogen phenomenon during pickling, the hydrogen embrittlement phenomenon occurs.
Can accurately control level of response; The titanium or titanium alloy surface oxide layer is eliminated and titanium or titanium alloy is not produced detrimentally affect; Realization is opened the hundreds of rice of length, is received the titanium or titanium alloy chemical conversion treatment method of wrapping up in into the circular titanium or titanium alloy roll coil of strip, does not also appear in the newspapers at present.
Summary of the invention
The object of the invention is intended to overcome above-mentioned deficiency of the prior art, and a kind of titanium strip coil continuous pickling technology is provided.
Content of the present invention is: a kind of titanium strip coil continuous pickling process method the present invention includes the following step:
Carry out following steps after titanium strip coil opened with the speed of 1～10 m/min:
1), pre-washing: is 2 meters with titanium strip coil guiding through length, and wide is 1.8 meters pre-washing groove, and the interior de-salted water temperature of groove is 30～85 ℃, and the de-salted water flow is 20～50m
3/ h.
2), pickling: the titanium strip coil that will from the pre-washing groove, draw guides through one, two, No. three pickling tank successively; Acid liquor temperature is all between 30～80 ℃ in the groove; Acid solution in said one, two, No. three pickling tank is 65% technical pure nitric acid by massfraction; Massfraction is 48% technical pure hydrofluoric acid, is 5～30% by the nitric acid volume(tric)fraction, and the hydrofluoric acid volume(tric)fraction is 0.5～6% ratio preparation.The flute profile size of said one, two, No. three pickling tank is, and is long 9 meters, wide 1.8 meters, high 1.4 meters.
3), rinsing: the titanium strip coil guiding that will from No. three pickling tanks, draw is 10 meters through length; Wide is 1.8 meters; Height is 2.2 meters a rinse tank; Adopt the spray equipment that is provided with to the titanium strip coil upper surface of operation, the water that lower surface sprays 40～90 ℃ of temperature, clean up the acid solution of titanium strip coil remained on surface.
4), oven dry: the guiding of the titanium strip coil that will from rinse tank, draw is through blowing device, adopts the blowing device that the is provided with hot blast to 40～120 ℃ of titanium strip coil upper surface, the lower surface winding-up temperature of operation, dries the water liquid of titanium strip coil remained on surface.
Among the present invention: the titanium strip coil after the oven dry of said step 4 more set by step 1), 2), 3), 4) saidly carry out the 2nd pickling, still have the situation of more oxide debris to be applicable to the titanium strip coil surface.
Compared with prior art: the present invention has following characteristics and beneficial effect:
1) adopt the present invention, the titanium strip coil surface scale after the pickling is thoroughly washed to the greatest extent, the peracid phenomenon do not occur, and the surface is pearl, and surface quality is good.
2) adopt the present invention, the titanium strip coil lumber recovery after the pickling is high.
3) adopt the present invention, the titanium strip coil after the pickling is compared as producing the welded tube raw material with the titanium plate as production welded tube raw material the time, and output welded tube length greatly increases, and weld seam significantly reduces, and performance is better.
4) inventive method is simple, and processing ease is practical.
Embodiment
Through embodiment the present invention is specifically described below; It is worthy of note that following examples only are applicable to does further explanation to the present invention; Can not be interpreted as restriction to protection domain of the present invention; And the nonessential improved adjustment that the professional in present technique field makes according to above-mentioned content of the present invention should belong to protection scope of the present invention.
Embodiment one:
A kind of titanium strip coil continuous pickling process method comprises the following steps:
Carry out following technological operation after titanium strip coil opened with the speed of 10m/min: (1) pre-washing: titanium strip coil is opened the back guiding get into the pre-washing groove, the de-salted water temperature is 85 ℃ in the groove, and the de-salted water flow is 50m
3/ h.
(2) pickling: the titanium strip coil that will from the pre-washing groove, draw guides through one, two, No. three pickling tank successively; Acid liquor temperature is 80 ℃ in the groove; Acid solution in said one, two, No. three pickling tank is 65% technical pure nitric acid by massfraction; Massfraction is 48% technical pure hydrofluoric acid, is 30% by the nitric acid volume(tric)fraction, and the hydrofluoric acid volume(tric)fraction is 6% ratio preparation.
(3) rinsing: the titanium strip coil that will from No. three pickling tanks, draw guides through rinse tank, adopts the spray equipment that is provided with to the titanium strip coil upper surface of operation, the water that lower surface sprays 90 ℃ of temperature, cleans up the acid solution of titanium strip coil remained on surface.
(4) oven dry: the guiding of the titanium strip coil that will from rinse tank, draw is through blowing device, adopts the blowing device that the is provided with hot blast to 120 ℃ of titanium strip coil upper surface, the lower surface winding-up temperature of operation, dries the water liquid of titanium strip coil remained on surface.
The titanium strip coil that adopts present embodiment one method to produce, its surface quality in kind is following:
(1) the titanium strip coil surface scale is thoroughly washed to the greatest extent.
(2) the titanium strip coil surface is pearl, and surface quality is good.
Embodiment two:
A kind of titanium strip coil continuous pickling process method comprises the following steps:
Carry out following technological operation after titanium strip coil opened with the speed of 5 m/min: (1) pre-washing: titanium strip coil is opened the back guiding get into the pre-washing groove, the de-salted water temperature is 55 ℃ in the groove, and the de-salted water flow is 35m
3/ h.
(2) pickling: the titanium strip coil that will from the pre-washing groove, draw guides through one, two, No. three pickling tank successively; Acid liquor temperature is 55 ℃ in the groove; Acid solution in said one, two, No. three pickling tank is 65% technical pure nitric acid by massfraction; Massfraction is 48% technical pure hydrofluoric acid, is 17.5% by the nitric acid volume(tric)fraction, and the hydrofluoric acid volume(tric)fraction is 3% ratio preparation.
(3) rinsing: the titanium strip coil that will from No. three pickling tanks, draw guides through rinse tank, adopts the spray equipment that is provided with to the titanium strip coil upper surface of operation, the water that lower surface sprays 70 ℃ of temperature, cleans up the acid solution of titanium strip coil remained on surface.
(4) oven dry: the guiding of the titanium strip coil that will from rinse tank, draw is through blowing device, adopts the blowing device that the is provided with hot blast to 80 ℃ of titanium strip coil upper surface, the lower surface winding-up temperature of operation, dries the water liquid of titanium strip coil remained on surface.
Embodiment three:
A kind of titanium strip coil continuous pickling process method comprises the following steps:
Carry out following technological operation after titanium strip coil opened with the speed of 1m/min: (1) pre-washing: titanium strip coil is opened the back guiding get into the pre-washing groove, the de-salted water temperature is 30 ℃ in the groove, and the de-salted water flow is 20m
3/ h.
(2) pickling: the titanium strip coil that will from the pre-washing groove, draw guides through one, two, No. three pickling tank successively; Acid liquor temperature is 30 ℃ in the groove; Acid solution in said one, two, No. three pickling tank is 65% technical pure nitric acid by massfraction; Massfraction is 48% technical pure hydrofluoric acid, is 5% by the nitric acid volume(tric)fraction, and the hydrofluoric acid volume(tric)fraction is 1% ratio preparation.
(3) rinsing: the titanium strip coil that will from No. three pickling tanks, draw guides through rinse tank, adopts the spray equipment that is provided with to the titanium strip coil upper surface of operation, the water that lower surface sprays 40 ℃ of temperature, cleans up the acid solution of titanium strip coil remained on surface.
(4) oven dry: the guiding of the titanium strip coil that will from rinse tank, draw is through blowing device, adopts the blowing device that the is provided with hot blast to 40 ℃ of titanium strip coil upper surface, the lower surface winding-up temperature of operation, dries the water liquid of titanium strip coil remained on surface.
Claims (2)
1. a titanium strip coil continuous pickling process method is characterized in that, carries out following process step after titanium strip coil is opened with the speed of 1-10 m/min:
1), pre-washing: is 2 meters with titanium strip coil guiding through length, and wide is 1.8 meters pre-washing groove, and the interior rinse water temperature of groove is 30～85 ℃, and the de-salted water flow is 20～50m
3/ h;
2), pickling: the titanium strip coil that will from the pre-washing groove, draw guides one, two, No. three pickling tank through being provided with successively; Acid liquor temperature is all between 30～80 ℃ in the groove; Acid solution in said one, two, No. three pickling tank is 65% technical pure nitric acid by massfraction; Massfraction is 48% technical pure hydrofluoric acid, is 5～30% by the nitric acid volume(tric)fraction, and the hydrofluoric acid volume(tric)fraction is 0.5～6% ratio preparation; The flute profile size of said one, two, No. three pickling tank is, and is long 9 meters, wide 1.8 meters, high 1.4 meters;
3), rinsing: the titanium strip coil guiding that will from No. three pickling tanks, draw is 10 meters through length; Wide is 1.8 meters; Height is 2.2 meters a rinse tank; Adopt the spray equipment that is provided with to the titanium strip coil upper surface of operation, the water that lower surface sprays 40～90 ℃ of temperature, clean up the acid solution of titanium strip coil remained on surface;
4), oven dry: the guiding of the titanium strip coil that will from rinse tank, draw is through blowing device, adopts the blowing device that the is provided with hot blast to 40～120 ℃ of titanium strip coil upper surface, the lower surface winding-up temperature of operation, dries the water liquid of titanium strip coil remained on surface.
2. a kind of titanium strip coil continuous pickling process method according to claim 1 is characterized in that, the titanium strip coil after the oven dry of said step 4 more set by step 1), 2), 3), 4) said process step carries out the 2nd pickling; Still have more oxide debris to remove the titanium strip coil surface.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103586124A CN102409352A (en) | 2011-11-14 | 2011-11-14 | Continuous acid washing process method for titanium tape reel |
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|---|---|---|---|
| CN2011103586124A CN102409352A (en) | 2011-11-14 | 2011-11-14 | Continuous acid washing process method for titanium tape reel |
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| CN102409352A true CN102409352A (en) | 2012-04-11 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103046065A (en) * | 2012-11-16 | 2013-04-17 | 云南钛业股份有限公司 | Method for controlling acid washing quality of titanium tape rolls |
| CN104047002A (en) * | 2013-11-28 | 2014-09-17 | 攀钢集团攀枝花钢铁研究院有限公司 | Continuous pickling method of titanium bands |
| CN104060286A (en) * | 2013-11-28 | 2014-09-24 | 攀钢集团攀枝花钢铁研究院有限公司 | Titanium belt continuous pickling method |
| CN111850577A (en) * | 2020-06-03 | 2020-10-30 | 云南钛业股份有限公司 | Acid pickling method for zirconium coil |
| CN112090959A (en) * | 2020-08-10 | 2020-12-18 | 昆明理工大学 | TA10 titanium alloy strip coil cold rolling method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1743508A (en) * | 2005-09-21 | 2006-03-08 | 中国海洋大学 | Chemical etching solution for titanium and titanium alloy |
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2011
- 2011-11-14 CN CN2011103586124A patent/CN102409352A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1743508A (en) * | 2005-09-21 | 2006-03-08 | 中国海洋大学 | Chemical etching solution for titanium and titanium alloy |
Non-Patent Citations (2)
| Title |
|---|
| > 20110731 徐信 纯钛卷工业化酸洗工艺浅析 163-164 1－2 , 第7期 * |
| 徐信: "纯钛卷工业化酸洗工艺浅析", <<化学工程与装备>>, no. 7, 31 July 2011 (2011-07-31), pages 163 - 164 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103046065A (en) * | 2012-11-16 | 2013-04-17 | 云南钛业股份有限公司 | Method for controlling acid washing quality of titanium tape rolls |
| CN103046065B (en) * | 2012-11-16 | 2015-09-09 | 云南钛业股份有限公司 | A kind of method of stability contorting titanium strip coil pickling quality |
| CN104047002A (en) * | 2013-11-28 | 2014-09-17 | 攀钢集团攀枝花钢铁研究院有限公司 | Continuous pickling method of titanium bands |
| CN104060286A (en) * | 2013-11-28 | 2014-09-24 | 攀钢集团攀枝花钢铁研究院有限公司 | Titanium belt continuous pickling method |
| CN111850577A (en) * | 2020-06-03 | 2020-10-30 | 云南钛业股份有限公司 | Acid pickling method for zirconium coil |
| CN112090959A (en) * | 2020-08-10 | 2020-12-18 | 昆明理工大学 | TA10 titanium alloy strip coil cold rolling method |
| CN112090959B (en) * | 2020-08-10 | 2021-09-03 | 昆明理工大学 | TA10 titanium alloy strip coil cold rolling method |
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Application publication date: 20120411 |