CN101487123B - Surface treating method for titanium belt and titanium mesh anode - Google Patents
Surface treating method for titanium belt and titanium mesh anode Download PDFInfo
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- CN101487123B CN101487123B CN2009100212057A CN200910021205A CN101487123B CN 101487123 B CN101487123 B CN 101487123B CN 2009100212057 A CN2009100212057 A CN 2009100212057A CN 200910021205 A CN200910021205 A CN 200910021205A CN 101487123 B CN101487123 B CN 101487123B
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Abstract
The invention provides a method for disposing the surfaces of a titanium strip and a titanium net strip anode. The disposal method comprises the following processes: the titanium strip and the titanium net strip are etched in oxalic acid (with the mass concentration of 8-10%) for 1-2 hours at the temperature of 80-100 DEG C, and then rinsed in water; subsequently, the titanium strip and the titanium net strip are dipped in a mixed acid solution for 3-10 hours and then washed cleanly by water; according to the volume percentage, the mixed acid solution consists of 1-10% of H2SO4, 1-20% of HCL and 70-98% of H2O, wherein, H2SO4 is defined as H2SO4 with the mass concentration of 98% and HCL is defined as the HCL with the mass concentration of 36-38%. The method has simple process; the surfaces of the titanium strip and the titanium net strip anode disposed by the method have uniform grey surfaces and the reinforcing service life thereof is greatly longer than that of the titanium strip and the titanium net strip anode disposed by the common method.
Description
Technical field
The present invention relates to the surface treatment method of a kind of metal strip and mesh anode, be specifically related to the surface treatment method of a kind of titanium band and titanium mesh anode.
Background technology
Titanium band and titanium mesh anode are widely used in the impressed current cathodic protection as insoluble anode, are the core components of cathodic protection system.This anode be installed in protected structures such as pipeline, underground tank, bridge, boats and ships near; and be connected on the positive pole of external source; protected bodies such as pipeline, underground tank, bridge, boats and ships then are connected on the negative pole of external source; so just form a loop; after the energising; an amount of cathodic protection electric current just can be distributed to each position equably, makes protected body obtain complete protection.
Titanium anodic production process is: titanium matrix surface processing-brushing-sintering, wherein the processing of titanium matrix surface is to produce important process of titanium anodic.Titanium surface at normal temperatures has layer oxide film, direct brushing masking liquid on this oxide film, not only matrix and coating's adhesion are bad, and anode conducting is also bad, in order to obtain bonding force, the good titanium anode of electroconductibility, need effectively get rid of the oxide film of titanium matrix surface, the titanium matrix is carried out surface treatment, the treatment process of titanium matrix surface is generally sandblast and adds pickling or oxalic acid etching, can effectively remove the oxide film on titanium surface like this, and makes the titanium surface irregularity.Titanium band and titanium mesh anode are a kind of elongated titanium anodes, it is carried out sandblasting is impossible, can only adopt the oxalic acid etching, but oxalic acid is limited to the etching of titanium matrix surface, titanium surfaceness after the etching is not enough, caused titanium matrix and coating bonding force not strong, coating easily comes off, and finally causes the titanium anode significantly to shorten work-ing life.In order to improve the work-ing life of titanium band and titanium mesh anode, must a kind of effectively suitable elongated titanium anodic surface treatment method of research.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, provide a kind of technology simple, can significantly improve the titanium band in titanium band and titanium mesh anode work-ing life and the surface treatment method of titanium mesh anode.
For solving the problems of the technologies described above, the technical solution used in the present invention is: the surface treatment method of a kind of titanium band and titanium mesh anode, it is characterized in that the treatment process process is: is in the oxalic acid of 8%-10% with titanium band and titanium guipure in mass percentage concentration, temperature is under 80-100 ℃ the condition etching 1-2 hour, it is clean to put into the water rinsing then, titanium band and titanium guipure after the rinsing were totally soaked in mixed acid solution 3-10 hour, water is rinsed well then again; Described mixed acid solution is the H of 1%-10% by volume percent
2SO
4, volume percent is that HCl and the volume percent of 1%-20% is the H of 70%-98%
2O forms, wherein H
2SO
4Be meant that mass concentration is 98% H
2SO
4, HCl is meant that mass concentration is the HCl of 36%-38%.
The present invention compared with prior art has the following advantages: technology of the present invention is simple, adopt titanium band (or the titanium guipure) anode surface after the inventive method is handled to have uniform grey pitted skin, its reinforcing life significantly is higher than titanium band (or titanium guipure) the anode reinforcing life that adopts usual way to handle.
Below by drawings and Examples the present invention is described in further detail.
Description of drawings
Fig. 1 is that temperature is 2 hours SEM of etching figure (amplifying 1000 times) under the 80-100 ℃ of condition in the oxalic acid of 8%-10% for the titanium matrix at mass percent concentration.
Fig. 2 is in the oxalic acid of 8%-10% for titanium matrix among the present invention at mass percent concentration, and temperature is that etching is soaked the SEM figure (amplifying 1000 times) after 5 hours after 2 hours again under the 80-100 ℃ of condition in the mix acid liquor of sulfuric acid and hydrochloric acid.
Embodiment
With wide 6.35mm, long 152000mm, the titanium band of thick 0.64mm (or titanium guipure) loose on the titanium pipe of Φ a 20 * 1000mm, at temperature 80-100 ℃, mass percent concentration is an etching 2 hours in the oxalic acid of 8%-10%, it is clean to put into the water rinsing then, goes up the brushing masking liquid at the titanium band (or titanium guipure) through above-mentioned processing, and sintering is made titanium band (or titanium guipure) anode 1.Simultaneously with wide 6.35mm, long 152000mm, the titanium band of thick 0.64mm (or titanium guipure) loose on the titanium pipe of Φ a 20 * 1000mm, at temperature 80-100 ℃, mass percentage concentration is an etching 2 hours in the oxalic acid of 8%-10%, it is clean to put into the water rinsing then, and putting into by volume percent is 5% H again
2SO
4, volume percent is that 10% HCl and volume percent are 85% H
2Soak in the mix acid liquor that O forms and take out water after 5 hours and rinse well, go up the brushing masking liquid at the titanium band (or titanium guipure) through above-mentioned processing, sintering is made titanium band (or titanium guipure) anode 2, wherein H
2SO
4Be meant that mass concentration is 98% H
2SO
4, HCl is meant that mass concentration is the HCl of 36%-38%.In concentration is the Na of 1mol/L
2SO
4, 25 ± 5 ℃ of temperature, current density 15000A/m
2Under the test condition, titanium band (or titanium guipure) anode 1 and titanium band (or titanium guipure) anode 2 are carried out the reinforcing life test, test result is: titanium band (or titanium guipure) anode 1 reinforcing life is 2510 hours, titanium band (or titanium guipure) anode 2 reinforcing lifes are 3600 hours, and titanium band (or titanium guipure) anode 2 reinforcing lifes are grown 1090 hours than titanium band (or titanium guipure) anode 1.Adopt titanium band (or the titanium guipure) anode after the inventive method is handled, its reinforcing life significantly is higher than titanium band (or titanium guipure) the anode reinforcing life that adopts usual way to handle, mainly be because after adopting the inventive method to handle titanium matrix surface micropore many, more micropore has increased titanium matrix and coating's adhesion on the one hand, on the other hand, the real surface that more micropore has increased the titanium matrix amasss, and real surface is long-pending big more, the anodic electro catalytic activity is good more, and anode potential is low more.Titanium matrix and coating's adhesion are good more, and anode potential is low more, and the titanium anodic life-span is just long more.
From Fig. 1 and Fig. 2 as can be seen, the titanium matrix surface pattern that two kinds of treatment processs obtain is different, titanium matrix among Fig. 1 (being titanium band or titanium guipure) surface formed some micropores in 2 hours later on through the oxalic acid etching, titanium matrix among Fig. 2 (being titanium band or titanium guipure) surface etching after 2 hours in oxalic acid, in mixing acid, soaked 5 hours again, relative Fig. 1 of micropore that the titanium matrix surface forms has increased a lot, more micropore has increased titanium matrix and coating's adhesion on the one hand, and the real surface that has also increased the titanium matrix on the one hand is long-pending.
Claims (1)
1. the surface treatment method of titanium band or titanium mesh anode, it is characterized in that the treatment process process is: is in the oxalic acid of 8%-10% with titanium band or titanium guipure in mass percentage concentration, temperature is under 80-100 ℃ the condition etching 1-2 hour, it is clean to put into the water rinsing then, titanium band or titanium guipure after the rinsing were totally soaked in mixed acid solution 3-10 hour, water is rinsed well then again; Described mixed acid solution is the H of 1%-10% by volume percent
2SO
4, volume percent is that HCl and the volume percent of 1%-20% is the H of 70%-98%
2O forms, wherein H
2SO
4Be meant that mass concentration is 98% H
2SO
4, HCl is meant that mass concentration is the HCl of 36%-38%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100212057A CN101487123B (en) | 2009-02-20 | 2009-02-20 | Surface treating method for titanium belt and titanium mesh anode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100212057A CN101487123B (en) | 2009-02-20 | 2009-02-20 | Surface treating method for titanium belt and titanium mesh anode |
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| Publication Number | Publication Date |
|---|---|
| CN101487123A CN101487123A (en) | 2009-07-22 |
| CN101487123B true CN101487123B (en) | 2011-04-06 |
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| CN2009100212057A Expired - Fee Related CN101487123B (en) | 2009-02-20 | 2009-02-20 | Surface treating method for titanium belt and titanium mesh anode |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107893232A (en) * | 2017-12-20 | 2018-04-10 | 西安泰金工业电化学技术有限公司 | A kind of surface etching method before titanium plate anodic coating |
| CN109701934A (en) * | 2018-11-24 | 2019-05-03 | 关海洋 | Annealing furnace cleaning method for stainless steel band production |
| CN110144607B (en) * | 2019-07-08 | 2020-06-12 | 西安泰金工业电化学技术有限公司 | Preparation method of anti-deformation titanium anode for hydrometallurgy |
| CN114836762A (en) * | 2022-04-12 | 2022-08-02 | 西安泰金工业电化学技术有限公司 | Acid treatment process capable of improving durability of titanium electrode |
Citations (6)
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|---|---|---|---|---|
| CN1113969A (en) * | 1994-05-31 | 1995-12-27 | 中国科学院大连化学物理研究所 | Surface treatment method for titanium matrix metal electrode |
| JP2006190643A (en) * | 2004-12-09 | 2006-07-20 | Kobe Steel Ltd | Titanium material for electrode and its manufacturing method |
| CN1880509A (en) * | 2005-06-14 | 2006-12-20 | 中国船舶重工集团公司第七二五研究所 | Method for preprocessing metal oxide anode substrate |
| CN101245469A (en) * | 2008-03-25 | 2008-08-20 | 吉林大学 | Method for manufacturing titanium base lead dioxide electrode capable of controlling coating granularity |
| CN101250715A (en) * | 2008-03-31 | 2008-08-27 | 太原理工大学 | Method for manufacturing acid resistant anode |
| CN101298342A (en) * | 2008-04-25 | 2008-11-05 | 武汉科技大学 | Metallic oxide electrode for organic wastewater processing and preparation thereof |
-
2009
- 2009-02-20 CN CN2009100212057A patent/CN101487123B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1113969A (en) * | 1994-05-31 | 1995-12-27 | 中国科学院大连化学物理研究所 | Surface treatment method for titanium matrix metal electrode |
| JP2006190643A (en) * | 2004-12-09 | 2006-07-20 | Kobe Steel Ltd | Titanium material for electrode and its manufacturing method |
| CN1880509A (en) * | 2005-06-14 | 2006-12-20 | 中国船舶重工集团公司第七二五研究所 | Method for preprocessing metal oxide anode substrate |
| CN101245469A (en) * | 2008-03-25 | 2008-08-20 | 吉林大学 | Method for manufacturing titanium base lead dioxide electrode capable of controlling coating granularity |
| CN101250715A (en) * | 2008-03-31 | 2008-08-27 | 太原理工大学 | Method for manufacturing acid resistant anode |
| CN101298342A (en) * | 2008-04-25 | 2008-11-05 | 武汉科技大学 | Metallic oxide electrode for organic wastewater processing and preparation thereof |
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Application publication date: 20090722 Assignee: Ningbo Yuxi Cathodic Protection Materials Co., Ltd. Assignor: Xi'an Taijin Industrial Electrochemical Technology Co., Ltd. Contract record no.: 2013330000186 Denomination of invention: Surface treating method for titanium belt and titanium mesh anode Granted publication date: 20110406 License type: Exclusive License Record date: 20130613 |
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