CN104451728A - Mild rust remover - Google Patents
Mild rust remover Download PDFInfo
- Publication number
- CN104451728A CN104451728A CN201410716531.0A CN201410716531A CN104451728A CN 104451728 A CN104451728 A CN 104451728A CN 201410716531 A CN201410716531 A CN 201410716531A CN 104451728 A CN104451728 A CN 104451728A
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- China
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- mass fraction
- parts
- acid
- rust remover
- iron
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 title claims abstract description 39
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims abstract description 44
- VKYKSIONXSXAKP-UHFFFAOYSA-N hexamethylenetetramine Chemical compound C1N(C2)CN3CN1CN2C3 VKYKSIONXSXAKP-UHFFFAOYSA-N 0.000 claims abstract description 44
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 claims abstract description 34
- RGHNJXZEOKUKBD-SQOUGZDYSA-N Gluconic acid Natural products OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C(O)=O RGHNJXZEOKUKBD-SQOUGZDYSA-N 0.000 claims abstract description 33
- RGHNJXZEOKUKBD-UHFFFAOYSA-N D-gluconic acid Natural products OCC(O)C(O)C(O)C(O)C(O)=O RGHNJXZEOKUKBD-UHFFFAOYSA-N 0.000 claims abstract description 22
- 229960000583 acetic acid Drugs 0.000 claims abstract description 22
- 239000012362 glacial acetic acid Substances 0.000 claims abstract description 22
- 239000000174 gluconic acid Substances 0.000 claims abstract description 22
- 235000012208 gluconic acid Nutrition 0.000 claims abstract description 22
- 239000004312 hexamethylene tetramine Substances 0.000 claims abstract description 22
- 235000010299 hexamethylene tetramine Nutrition 0.000 claims abstract description 22
- 239000008367 deionised water Substances 0.000 claims abstract description 17
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 24
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 claims description 21
- 239000004141 Sodium laurylsulphate Substances 0.000 claims description 21
- LDDQLRUQCUTJBB-UHFFFAOYSA-N ammonium fluoride Chemical compound [NH4+].[F-] LDDQLRUQCUTJBB-UHFFFAOYSA-N 0.000 claims description 21
- 235000019333 sodium laurylsulphate Nutrition 0.000 claims description 21
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 17
- 229920001444 polymaleic acid Polymers 0.000 claims description 17
- 239000011734 sodium Substances 0.000 claims description 17
- 229910052708 sodium Inorganic materials 0.000 claims description 12
- 239000011787 zinc oxide Substances 0.000 claims description 12
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 5
- 230000003647 oxidation Effects 0.000 claims description 5
- 238000007254 oxidation reaction Methods 0.000 claims description 5
- 229910001948 sodium oxide Inorganic materials 0.000 claims description 5
- 229910052725 zinc Inorganic materials 0.000 claims description 5
- 239000011701 zinc Substances 0.000 claims description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 60
- 229910052742 iron Inorganic materials 0.000 abstract description 30
- 229910000831 Steel Inorganic materials 0.000 abstract description 28
- 239000010959 steel Substances 0.000 abstract description 28
- 230000006378 damage Effects 0.000 abstract description 9
- 230000007797 corrosion Effects 0.000 abstract description 7
- 238000005260 corrosion Methods 0.000 abstract description 7
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Natural products NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 abstract description 3
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 abstract 1
- RCEAADKTGXTDOA-UHFFFAOYSA-N OS(O)(=O)=O.CCCCCCCCCCCC[Na] Chemical compound OS(O)(=O)=O.CCCCCCCCCCCC[Na] RCEAADKTGXTDOA-UHFFFAOYSA-N 0.000 abstract 1
- 229910000040 hydrogen fluoride Inorganic materials 0.000 abstract 1
- 230000007774 longterm Effects 0.000 abstract 1
- 238000004321 preservation Methods 0.000 abstract 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 10
- 239000002253 acid Substances 0.000 description 9
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 6
- 208000027418 Wounds and injury Diseases 0.000 description 6
- 208000014674 injury Diseases 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 4
- 239000001257 hydrogen Substances 0.000 description 4
- 229910052739 hydrogen Inorganic materials 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 2
- 229910052921 ammonium sulfate Inorganic materials 0.000 description 2
- 235000011130 ammonium sulphate Nutrition 0.000 description 2
- 239000004202 carbamide Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Landscapes
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
The invention belongs to the field of health preservation and particularly relates to a mild rust remover which comprises the following components in parts by mass: 15-25 parts of thiourea, 25-35 parts of hydrogen fluoride, 10-30 parts of lauryl sodium sulfate, 5-25 parts of gluconic acid, 15-35 parts of hexamethylenetetramine, 14-34 parts of glacial acetic acid and 500-800 parts of deionized water. The mild rust remover provided by the invention does not cause corrosion or other damages to iron and steel and can better eliminate rust on iron and steel, so that the mild rust remover has the advantage of not damaging iron and steel in long-term use. By virtue of large-scaled popularization and application as well as low cost of the components, compared with existing mild rust removers, the input cost of the user can be greatly lowered.
Description
Technical field
The invention belongs to industrial circle, specifically a kind of gentle rust remover.
Background technology
Acid can with iron rust and metal oxide generation chemical reaction, generate solubility salt, thus reach the object of rust cleaning, while rust cleaning, acid to react releasing hydrogen with underlying metal again, the oxide skin of Hydrogen Energy to iron rust and indissoluble produces pressure, be conducive to their reduction with high price iron of peeling off, accelerate the process of pickling, but traditional acid solution treatment process also also exists obvious defect: namely in treating processes, the generation of a large amount of hydrogen can make steel produce Hydrogen Brittleness Phenomena, cause the mechanical properties decrease of metal, affect the intensity of iron and steel itself; Easily form acid mist simultaneously, affect the health of operator and corrode equipment around and environment; The consumption of acid solution is also comparatively large, increases processing cost; This kind of acid can form excessive erosion to steel.In addition a large amount of residue produced, need often discharge, both heavy corrosion industrial pipeline, again contaminated soil and environment.If number of patent application is CN200710150668.4, the applying date is 2007-12-03, the patent of invention that name is called " novel method with the iron rust on concentrated hydrochloric acid or vitriol oil removing steel device ", its technical scheme is: the novel method that the present invention relates to the iron rust on a kind of concentrated hydrochloric acid or vitriol oil removing steel device.In hydrochloric acid or sulfuric acid, add urea, or add ammonium sulfate in sulfuric acid, be used for removing the rust on iron and steel.Just hydrochloric acid or the sulfuric acid that consume, urea or ammonium sulfate do not consume, but play and prevent acid mist from occurring, reduce the inhibitor effect that acid is corroded iron itself.When acid is depleted to similar, supplement concentrated hydrochloric acid or the vitriol oil one after another, rust cleaning is just constantly carried out.But above-mentioned patent is when life-time service, can damage iron and steel itself, although rust has been removed, iron and steel has also received damage, loses more than gain.
Summary of the invention
In order to overcome the problem of the meeting injury iron and steel that existing gentle rust remover exists itself, now a kind of gentle rust remover that can not injure iron and steel is proposed.。
For realizing above-mentioned technique effect, technical solution of the present invention is as follows:
A kind of gentle rust remover, it is characterized in that: include thiocarbamide, hydrogen fluoride ammonia, sodium lauryl sulphate, gluconic acid, hexamethylenetetramine, Glacial acetic acid and deionized water, the mass fraction of described thiocarbamide is 15-25 part, the mass fraction of described hydrogen fluoride ammonia is 25-35 part, the mass fraction of described sodium lauryl sulphate is 10-30 part, the mass fraction of described gluconic acid is 5-25 part, the mass fraction of described hexamethylenetetramine is 15-35 part, the mass fraction of described Glacial acetic acid is 14-34 part, and the mass fraction of described deionized water is 500-800 part.
The mass fraction of described thiocarbamide is 17-22 part, the mass fraction of described hydrogen fluoride ammonia is 27-31 part, the mass fraction of described sodium lauryl sulphate is 20-25 part, the mass fraction of described gluconic acid is 16-21 part, the mass fraction of described hexamethylenetetramine is 20-30 part, the mass fraction of described Glacial acetic acid is 23-30 part, and the mass fraction of described deionized water is 600-700 part.
The mass fraction of described thiocarbamide is 21 parts, the mass fraction of described hydrogen fluoride ammonia is 29 parts, the mass fraction of described sodium lauryl sulphate is 23 parts, the mass fraction of described gluconic acid is 18 parts, the mass fraction of described hexamethylenetetramine is 24 parts, the mass fraction of described Glacial acetic acid is 27 parts, and the mass fraction of described deionized water is 650 parts.
Also include polymaleic acid sodium and zinc oxide, the mass fraction of described polymaleic acid sodium is 10-30 part, and the mass fraction of described zinc oxide is 20-35 part.
The mass fraction of described polymaleic acid sodium is 19 parts, and the mass fraction of described zinc oxide is 26 parts.
Described hydrogen fluoride ammonia, sodium lauryl sulphate, gluconic acid, hexamethylenetetramine, Glacial acetic acid, polymaleic acid sodium and oxidation zinc concentration are 30-50%.
The invention has the advantages that:
The present invention can not cause corrosion or other injuries to iron and steel, and well can eliminate the rust on iron and steel, even if ensure that life-time service also can not destroy the advantage of iron and steel, utilizes and applies on a large scale.
Embodiment
A kind of gentle rust remover includes thiocarbamide, hydrogen fluoride ammonia, sodium lauryl sulphate, gluconic acid, hexamethylenetetramine, Glacial acetic acid and deionized water, the mass fraction of described thiocarbamide is 15-25 part, the mass fraction of described hydrogen fluoride ammonia is 25-35 part, the mass fraction of described sodium lauryl sulphate is 10-30 part, the mass fraction of described gluconic acid is 5-25 part, the mass fraction of described hexamethylenetetramine is 15-35 part, the mass fraction of described Glacial acetic acid is 14-34 part, and the mass fraction of described deionized water is 500-800 part.
The present invention can not cause corrosion or other injuries to iron and steel, and can the rust on iron and steel well be eliminated, even if ensure that life-time service also can not destroy the advantage of iron and steel, utilize and apply on a large scale, and each composition is with low cost, compared to existing gentle rust remover, the input cost of user greatly can be reduced.
Embodiment 2
A kind of gentle rust remover, it is characterized in that: include thiocarbamide, hydrogen fluoride ammonia, sodium lauryl sulphate, gluconic acid, hexamethylenetetramine, Glacial acetic acid and deionized water, the mass fraction of described thiocarbamide is 17-22 part, the mass fraction of described hydrogen fluoride ammonia is 27-31 part, the mass fraction of described sodium lauryl sulphate is 20-25 part, the mass fraction of described gluconic acid is 16-21 part, the mass fraction of described hexamethylenetetramine is 20-30 part, the mass fraction of described Glacial acetic acid is 23-30 part, and the mass fraction of described deionized water is 600-700 part.Also include polymaleic acid sodium and zinc oxide, the mass fraction of described polymaleic acid sodium is 10-30 part, and the mass fraction of described zinc oxide is 20-35 part.The present invention can not cause corrosion or other injuries to iron and steel, and can the rust on iron and steel well be eliminated, even if ensure that life-time service also can not destroy the advantage of iron and steel, utilize and apply on a large scale, and each composition is with low cost, compared to existing gentle rust remover, the input cost of user greatly can be reduced.Described hydrogen fluoride ammonia, sodium lauryl sulphate, gluconic acid, hexamethylenetetramine, Glacial acetic acid, polymaleic acid sodium and oxidation zinc concentration are 50%.
Embodiment 3
A kind of gentle rust remover, it is characterized in that: include thiocarbamide, hydrogen fluoride ammonia, sodium lauryl sulphate, gluconic acid, hexamethylenetetramine, Glacial acetic acid and deionized water, the mass fraction of described thiocarbamide is 21 parts, the mass fraction of described hydrogen fluoride ammonia is 29 parts, the mass fraction of described sodium lauryl sulphate is 23 parts, the mass fraction of described gluconic acid is 18 parts, the mass fraction of described hexamethylenetetramine is 24 parts, the mass fraction of described Glacial acetic acid is 27 parts, and the mass fraction of described deionized water is 650 parts.Also include polymaleic acid sodium and zinc oxide, the mass fraction of described polymaleic acid sodium is 19 parts, and the mass fraction of described zinc oxide is 26 parts.The present invention can not cause corrosion or other injuries to iron and steel, and can the rust on iron and steel well be eliminated, even if ensure that life-time service also can not destroy the advantage of iron and steel, utilize and apply on a large scale, and each composition is with low cost, compared to existing gentle rust remover, the input cost of user greatly can be reduced.
Described hydrogen fluoride ammonia, sodium lauryl sulphate, gluconic acid, hexamethylenetetramine, Glacial acetic acid, polymaleic acid sodium and oxidation zinc concentration are 30%.
Embodiment 4
A kind of gentle rust remover, it is characterized in that: include thiocarbamide, hydrogen fluoride ammonia, sodium lauryl sulphate, gluconic acid, hexamethylenetetramine, Glacial acetic acid and deionized water, the mass fraction of described thiocarbamide is 22 parts, the mass fraction of described hydrogen fluoride ammonia is 27 parts, the mass fraction of described sodium lauryl sulphate is 24 parts, the mass fraction of described gluconic acid is 19 parts, the mass fraction of described hexamethylenetetramine is 23 parts, the mass fraction of described Glacial acetic acid is 26 parts, and the mass fraction of described deionized water is 650 parts.Also include polymaleic acid sodium and zinc oxide, the mass fraction of described polymaleic acid sodium is 20 parts, and the mass fraction of described zinc oxide is 25 parts.The present invention can not cause corrosion or other injuries to iron and steel, and can the rust on iron and steel well be eliminated, even if ensure that life-time service also can not destroy the advantage of iron and steel, utilize and apply on a large scale, and each composition is with low cost, compared to existing gentle rust remover, the input cost of user greatly can be reduced.
Described hydrogen fluoride ammonia, sodium lauryl sulphate, gluconic acid, hexamethylenetetramine, Glacial acetic acid, polymaleic acid sodium and oxidation zinc concentration are 35%.
Claims (6)
1. a gentle rust remover, it is characterized in that: include thiocarbamide, hydrogen fluoride ammonia, sodium lauryl sulphate, gluconic acid, hexamethylenetetramine, Glacial acetic acid and deionized water, the mass fraction of described thiocarbamide is 15-25 part, the mass fraction of described hydrogen fluoride ammonia is 25-35 part, the mass fraction of described sodium lauryl sulphate is 10-30 part, the mass fraction of described gluconic acid is 5-25 part, the mass fraction of described hexamethylenetetramine is 15-35 part, the mass fraction of described Glacial acetic acid is 14-34 part, and the mass fraction of described deionized water is 500-800 part.
2. gentle rust remover according to claim 1, it is characterized in that: the mass fraction of described thiocarbamide is 17-22 part, the mass fraction of described hydrogen fluoride ammonia is 27-31 part, the mass fraction of described sodium lauryl sulphate is 20-25 part, the mass fraction of described gluconic acid is 16-21 part, the mass fraction of described hexamethylenetetramine is 20-30 part, and the mass fraction of described Glacial acetic acid is 23-30 part, and the mass fraction of described deionized water is 600-700 part.
3. gentle rust remover according to claim 2, it is characterized in that: the mass fraction of described thiocarbamide is 21 parts, the mass fraction of described hydrogen fluoride ammonia is 29 parts, the mass fraction of described sodium lauryl sulphate is 23 parts, the mass fraction of described gluconic acid is 18 parts, the mass fraction of described hexamethylenetetramine is 24 parts, and the mass fraction of described Glacial acetic acid is 27 parts, and the mass fraction of described deionized water is 650 parts.
4. the gentle rust remover according to claim 1,2 or 3, is characterized in that: also include polymaleic acid sodium and zinc oxide, and the mass fraction of described polymaleic acid sodium is 10-30 part, and the mass fraction of described zinc oxide is 20-35 part.
5. gentle rust remover according to claim 4, is characterized in that: the mass fraction of described polymaleic acid sodium is 19 parts, and the mass fraction of described zinc oxide is 26 parts.
6. gentle rust remover according to claim 4, is characterized in that: described hydrogen fluoride ammonia, sodium lauryl sulphate, gluconic acid, hexamethylenetetramine, Glacial acetic acid, polymaleic acid sodium and oxidation zinc concentration are 30-50%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410716531.0A CN104451728B (en) | 2014-12-02 | 2014-12-02 | Mild rust remover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410716531.0A CN104451728B (en) | 2014-12-02 | 2014-12-02 | Mild rust remover |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104451728A true CN104451728A (en) | 2015-03-25 |
| CN104451728B CN104451728B (en) | 2017-02-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410716531.0A Expired - Fee Related CN104451728B (en) | 2014-12-02 | 2014-12-02 | Mild rust remover |
Country Status (1)
| Country | Link |
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| CN (1) | CN104451728B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105925992A (en) * | 2016-07-14 | 2016-09-07 | 南通中兴多元复合钢管有限公司 | Novel rust remover |
| CN105970233A (en) * | 2016-07-14 | 2016-09-28 | 南通中兴多元复合钢管有限公司 | Environment-friendly rust remover |
| CN106498415A (en) * | 2016-10-19 | 2017-03-15 | 广西钱隆投资管理有限公司 | A kind of rust remover |
| CN113740142A (en) * | 2020-05-27 | 2021-12-03 | 宝山钢铁股份有限公司 | Method for obtaining hydrogen content of galvanized sheet matrix |
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| CN103603000A (en) * | 2013-12-04 | 2014-02-26 | 昆山青烽精细化工有限公司 | Neutral phosphorus-free rust remover used for sheet metal rust removal |
| KR20140042396A (en) * | 2012-09-28 | 2014-04-07 | 한국전력공사 | Chemical cleaning agent composition for high temperature oxidation scales and method for cleaning high temperature oxidation scales using the same |
| CN103741156A (en) * | 2013-12-23 | 2014-04-23 | 天津市澳路浦润滑油有限公司 | Water base reaction type multifunctional metal cleaning agent and preparation method thereof |
| CN104005033A (en) * | 2014-05-19 | 2014-08-27 | 刘晓萍 | Anti-corrosion rust remover and preparation method thereof |
-
2014
- 2014-12-02 CN CN201410716531.0A patent/CN104451728B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20140042396A (en) * | 2012-09-28 | 2014-04-07 | 한국전력공사 | Chemical cleaning agent composition for high temperature oxidation scales and method for cleaning high temperature oxidation scales using the same |
| CN103603000A (en) * | 2013-12-04 | 2014-02-26 | 昆山青烽精细化工有限公司 | Neutral phosphorus-free rust remover used for sheet metal rust removal |
| CN103741156A (en) * | 2013-12-23 | 2014-04-23 | 天津市澳路浦润滑油有限公司 | Water base reaction type multifunctional metal cleaning agent and preparation method thereof |
| CN104005033A (en) * | 2014-05-19 | 2014-08-27 | 刘晓萍 | Anti-corrosion rust remover and preparation method thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105925992A (en) * | 2016-07-14 | 2016-09-07 | 南通中兴多元复合钢管有限公司 | Novel rust remover |
| CN105970233A (en) * | 2016-07-14 | 2016-09-28 | 南通中兴多元复合钢管有限公司 | Environment-friendly rust remover |
| CN106498415A (en) * | 2016-10-19 | 2017-03-15 | 广西钱隆投资管理有限公司 | A kind of rust remover |
| CN113740142A (en) * | 2020-05-27 | 2021-12-03 | 宝山钢铁股份有限公司 | Method for obtaining hydrogen content of galvanized sheet matrix |
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| Publication number | Publication date |
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| CN104451728B (en) | 2017-02-01 |
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Effective date of registration: 20161116 Address after: 266000 Licang, Qingdao, No. nine East water road, No. 320, No. Applicant after: Gu Yukui Address before: 610000 Jinjiang District, Chengdu, No. 1 East Ring Road, Sichuan No. five, building 1-1, layer 108, No. 21, No. 2106 Applicant before: CHENGDU JINHUI TECHNOLOGY CO., LTD. |
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Inventor after: Bao Yuhao Inventor before: Zhang Yifan |
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Effective date of registration: 20161201 Address after: 256200, No. 69, Toll House, hi tech office, Zouping County, Shandong, Binzhou Applicant after: Bao Yuhao Address before: 266000 Licang, Qingdao, No. nine East water road, No. 320, No. Applicant before: Gu Yukui |
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Granted publication date: 20170201 Termination date: 20181202 |