CN102330100A - Acid washing method for titanium belts - Google Patents
Acid washing method for titanium belts Download PDFInfo
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- CN102330100A CN102330100A CN201110183801A CN201110183801A CN102330100A CN 102330100 A CN102330100 A CN 102330100A CN 201110183801 A CN201110183801 A CN 201110183801A CN 201110183801 A CN201110183801 A CN 201110183801A CN 102330100 A CN102330100 A CN 102330100A
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- acid
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- pickling
- acid solution
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- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
The invention discloses an acid washing method for titanium belts. According to the acid feeding and discharge sequence during continuous acid washing, the acid is fed from a No.1 tank, and the acid is discharged from a last tank. The method has the remarkable advantages of high production efficiency, low consumption of acid liquor and capabilities of improving the running speed of the titanium belts and improving the yield of the titanium belts.
Description
Technical field
The invention belongs to titanium band continuous pickling process method technical field.
Background technology
The acid cleaning process technology of existing titanium band; Mainly be to adopt step adverse current shallow-slot type pickling technology; 3～5 sections pickling tanks of operated by rotary motion; Squeezing roller is set between groove, and the effect one of squeezing roller is the acid solution of belt surface to be extracted simultaneously the titanium band pulled out and send in next groove pickling tank in the last groove carry out pickling again.Band titanium band gets into No. 1～No. 2～No. 3 in proper order ... pickling tank; The acid inlet of each groove is opened the second half section at groove, and the acid of advancing in each groove all is in the second half section side wall entering pickling tank against titanium tape travel direction from pickling tank, mixes with the acid solution in the groove; And because the jet action of the new acid solution that gets into; Make the acid solution in the groove form certain reverse (opposite) turbulent flow, and go out, and get into the acid solution circulation tank through pipeline from the leading portion squeezing roller position overflow of groove with the working direction of band.The titanium band comes out then to get into the acid solution inner close fitting from squeezing roller and the bottom of groove and advance to the back segment direction of pickling tank.Form tape travel direction and sour flow in the opposite direction like this, and the pickling tank design is more shallow, so be referred to as the pickling of shallow slot turbulent flow.
The acid solution of new preparation at first gets in last groove (like No. 3 grooves); In No. 3 grooves with after get in No. 3 acid solution circulation tanks; From then on interior the throwing in No. 2 grooves with pump of acid solution circulation tank used again; Enter into so at last in No. 1 groove and use, like this use then in each section pickling tank the free acid concentration of used acid solution form the different concentration gradient naturally.Free acid concentration in the acid solution that the result is No. 1～No. 2～No. 3 .. of each section acid tank of arranging along the tape travel direction in last a section is that one section of one section ratio is high.The acid solution free acid concentration that steel band gets in the final stage groove before the rinsing section is the highest.
This acid cleaning process is suitable on the pickling steel band, and the high and used acid solution of its production efficiency is less, can improve the travelling speed of steel band and improve output.
But when pickling titanium band, then bring some problems.Mainly be: at first; The pickling of titanium plate is to add the nitric acid mixed acid liquid with hydrofluoric acid the titanium plate is carried out pickling; Purpose is the zone of oxidation that washes out the plate surface; Because the combination reaction on nitration mixture and titanium plate surface is quite strong, especially acid and the reaction of pure metallic titanium are than reacting much violent with titanyl compound, and the while pickling will produce great amount of heat; Make the temperature of the titanium band that comes out in the final stage acid tank very high, thereby the residual acid solution of titanium belt surface is evaporated the titanium belt surface that can make after the pickling at short notice and is formed a large amount of sour spots easily.And this sour spot can't wash out in rinse cycle afterwards, and the titanium coiled sheet surface quality that comes out also is difficult to control.
Secondly, the service efficiency of mixed acid liquid is low, and the acid waste is bigger.The purpose of titanium band pickling is its surperficial zone of oxidation of eccysis and the metal titanium body need not be removed again; But advance the acid discharge process method and can be formed into the plate face that the acid solution that newly prepares at first is used for the most of zone of oxidation of eccysis just with this; Make metal titanium body and acid solution that reaction tempestuously take place; Waste free acid in the acid solution on the one hand, made the plate face of pickling coarse again simultaneously, influenced the zone face quality.
Summary of the invention
The object of the invention be exactly above-mentionedly advance in order to overcome, problem that acid discharge technology is brought and provide a kind of have production efficiency height, used acid solution few, can improve the titanium tape running speed, improve the titanium band acid cleaning process method of titanium band output.
The present invention realizes through following technical scheme: a kind of titanium band acid cleaning process method, and the advance sour acid discharge of the present invention during with continuous pickling is set to advance acid from No. 1 groove in proper order, and from the acid discharge of last number groove.
Existingly advance, acid discharge technology is that contrary titanium tape travel direction is advanced acid discharge, and the present invention advances acid discharge along titanium tape travel direction, promptly adopts the new acid solution of new preparation to get into pickling tank from No. 1 groove, and from the acid discharge of final stage groove.
Effect of the present invention is: let new acid solution contact with the titanium plate face of primary with a large amount of zone of oxidation earlier like this, make full use of new acid solution middle reaches and when acid strength is high, at first carry out the pickling of original plate face zone of oxidation, improve the service efficiency of pickle solution; Used acid solution forward gets into down groove, gets into last groove at last, and the acid content of dissociating in the acid solution in last groove like this is minimum; Itself and the reaction of this dignity of metal titanium then are not very strong; Acid liquor temperature neither be very high, and the temperature of titanium coiled sheet neither be very high, and the plate face quality that comes out like this is better; The ability of acid solution pickling is not simultaneously wasted yet, and the surface quality after the pickling might as well control.Because the free acid concentration that gets in the final stage pickling tank before the rinsing section is very low; The pickling reaction is not very violent; The temperature of acid liquor temperature and titanium coiled sheet can be very not high; The difficult evaporation of acid solution that the coiled sheet that from acid solution, comes out remains in before entering into rinse tank on the plate face is done, thereby also can not stay sour spot.
Description of drawings
Fig. 1 is a process flow sheet of the present invention.
Embodiment
See Fig. 1, a kind of titanium band acid cleaning process method, the advance sour acid discharge of the present invention during with continuous pickling is set to advance acid from No. 1 groove in proper order, and from the acid discharge of last number groove.T is the titanium band among the figure, and big arrow is a titanium tape running direction.
It is 3 that the embodiment of the invention is got pickling tank, and each acid solution circulation tank is positioned at separately under the pickling tank, and the present invention advances the transformation of acid discharge process line again; The acid inlet tube A of the acid solution of newly preparing is received on the acid solution circulation tank of No. 1 pickling tank; And ACID B is linked on the acid solution circulation tank of last one pickling tank, and, new acid solution is got in the acid solution circulation tank of No. 1 pickling tank through the connection again between pump and each section acid solution circulation tank; With No. 1～No. 2; Connect with closed tube between No. 2～No. 3 acid solution circulation tanks, the acid solution position of each jar completely back spills in next section acid solution circulation tank through closed tube, and final stage acid solution circulation tank is got to the spent acid treatment station through a spent acid pump with acid and handled; The concentration of such No. 1, No. 2, No. 3 interior free acids of pickling tank is that No. 1 groove is the highest along the working direction of band, and last groove is minimum.
Claims (1)
1. titanium band acid cleaning process method; Through being sent in 3～5 pickling tanks continuously, the titanium band carries out pickling; Thereby remove the zone of oxidation of titanium belt surface, it is characterized in that: the sour acid discharge of advancing during with continuous pickling is set to advance acid from No. 1 groove in proper order, and from the acid discharge of last number groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110183801A CN102330100A (en) | 2011-07-01 | 2011-07-01 | Acid washing method for titanium belts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110183801A CN102330100A (en) | 2011-07-01 | 2011-07-01 | Acid washing method for titanium belts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102330100A true CN102330100A (en) | 2012-01-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110183801A Pending CN102330100A (en) | 2011-07-01 | 2011-07-01 | Acid washing method for titanium belts |
Country Status (1)
| Country | Link |
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| CN (1) | CN102330100A (en) |
Cited By (4)
| 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 |
| CN103473521A (en) * | 2013-09-02 | 2013-12-25 | 华为技术有限公司 | Method and system for acquiring asset information of data center |
| CN105780058A (en) * | 2014-12-23 | 2016-07-20 | 宁波创润新材料有限公司 | Cleaning method of cathode electrolytic products |
| CN107457707A (en) * | 2017-08-17 | 2017-12-12 | 中冶赛迪工程技术股份有限公司 | A kind of titanium or titanium alloy surface aoxidize layer minimizing technology |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1088631A (en) * | 1992-12-03 | 1994-06-29 | Sms舒路曼-斯玛公司 | The method of pickling installation and its operation |
| US6267831B1 (en) * | 1998-05-06 | 2001-07-31 | Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | Method of making a titanium or titanium alloy strip having a decorative surface appearance |
| CN1462321A (en) * | 2001-04-27 | 2003-12-17 | 住友金属工业株式会社 | Continuous pickling method and continuous pickling device |
| CN101775607A (en) * | 2010-01-27 | 2010-07-14 | 中国瑞林工程技术有限公司 | Forced circulation pickling method of copper and copper alloy tubes, rods and wires |
| CN101935845A (en) * | 2010-08-19 | 2011-01-05 | 昆明理工大学 | Method for heating titanium strip cleaning acid liquor by using microwave heater |
-
2011
- 2011-07-01 CN CN201110183801A patent/CN102330100A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1088631A (en) * | 1992-12-03 | 1994-06-29 | Sms舒路曼-斯玛公司 | The method of pickling installation and its operation |
| US6267831B1 (en) * | 1998-05-06 | 2001-07-31 | Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | Method of making a titanium or titanium alloy strip having a decorative surface appearance |
| CN1462321A (en) * | 2001-04-27 | 2003-12-17 | 住友金属工业株式会社 | Continuous pickling method and continuous pickling device |
| CN101775607A (en) * | 2010-01-27 | 2010-07-14 | 中国瑞林工程技术有限公司 | Forced circulation pickling method of copper and copper alloy tubes, rods and wires |
| CN101935845A (en) * | 2010-08-19 | 2011-01-05 | 昆明理工大学 | Method for heating titanium strip cleaning acid liquor by using microwave heater |
Cited By (6)
| 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 |
| CN103473521A (en) * | 2013-09-02 | 2013-12-25 | 华为技术有限公司 | Method and system for acquiring asset information of data center |
| CN103473521B (en) * | 2013-09-02 | 2016-03-02 | 华为技术有限公司 | A kind of assets information acquisition methods of data center and system |
| CN105780058A (en) * | 2014-12-23 | 2016-07-20 | 宁波创润新材料有限公司 | Cleaning method of cathode electrolytic products |
| CN107457707A (en) * | 2017-08-17 | 2017-12-12 | 中冶赛迪工程技术股份有限公司 | A kind of titanium or titanium alloy surface aoxidize layer minimizing technology |
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Application publication date: 20120125 |
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| WD01 | Invention patent application deemed withdrawn after publication |