CN107326352A - A kind of aqueous pickling of stainless steel Low corrison agent - Google Patents
A kind of aqueous pickling of stainless steel Low corrison agent Download PDFInfo
- Publication number
- CN107326352A CN107326352A CN201710655186.8A CN201710655186A CN107326352A CN 107326352 A CN107326352 A CN 107326352A CN 201710655186 A CN201710655186 A CN 201710655186A CN 107326352 A CN107326352 A CN 107326352A
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- China
- Prior art keywords
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- stainless steel
- steel low
- agent
- aqueous pickling
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
- C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
- C23C22/24—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing hexavalent chromium compounds
- C23C22/33—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing hexavalent chromium compounds containing also phosphates
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
- C23F11/04—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in markedly acid liquids
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Chemical Treatment Of Metals (AREA)
Abstract
The invention discloses aqueous pickling of stainless steel Low corrison agent, including following parts by weight material：2 ~ 3 parts of phenylalanine, 1 ~ 5 part of acetic acid, 1 ~ 2 part of lactic acid, 1 ~ 2 part of dipotassium hydrogen phosphate, 0.5 ~ 1 part of potassium dihydrogen phosphate, phosphatase 11 ~ 2 part, 0.1 ~ 0.3 part of thiocarbamide, 1 ~ 1.5 part of aniline, 1 ~ 2 part of ethanol, 1 ~ 2 part of DTPMPA, 0.2 ~ 0.5 part of calcium chromate, 1 ~ 2 part of potassium nitrate, 0.1 ~ 0.5 part of EDTA, 3 ~ 8 parts of water.The aqueous pickling of stainless steel Low corrison agent has a nontoxic, environmental protection, the advantage such as good passivation effect.
Description
Technical field
The invention belongs to stainless steel manufacturing technology field, and in particular to a kind of aqueous pickling of stainless steel Low corrison agent and its
Preparation method.
Background technology
Stainless steel has a characteristics such as good corrosion-resistant, high temperature resistant, low temperature resistant, wear-resistant exquisite appearance, purposes widely,
It is the important ferrous materials of the economic all departments' development of allergy.Stainless steel material aerospace, atomic energy, ocean development, petrochemical industry,
The industries such as automobile, building decoration, household electrical appliance, kitchen utensil are widely used.
Stainless steel can cause surface defect in process, and black oxidation skin and other metallization occurs in Corrosion Potential
Grease when compound, yellow weld seam and cold-drawn etc., in order to improve the outward appearance and corrosion resistance of stainless steel, the stainless steel after processing is necessary
Carry out acid wash passivation processing.The surface after processing is formed one layer of passivating film using chromium as main matter, prevent and other materials
Reaction, reaches passivation purpose, is allowed to the pure white surface anticorrosion quality so as to improve stainless steel products of light, and extension device uses the longevity
Life.Acid-washing stainless steel is usually to be handled using acid wash passivation cream and acid wash passivation liquid.
Acid wash passivation liquid of the prior art has strong impulse smell, is unfavorable for the healthy of workman, to ring
There is destruction in border, therefore needs a kind of environmentally friendly, nontoxic acid-washing stainless steel passivating solution of offer badly.
The content of the invention
Technical problem：A kind of environmentally friendly, nontoxic acid-washing stainless steel passivating solution and preparation method thereof is provided.
Technical scheme：A kind of aqueous pickling of stainless steel Low corrison agent, including following parts by weight material：
2 ~ 3 parts of phenylalanine, 1 ~ 5 part of acetic acid, 1 ~ 2 part of lactic acid, 1 ~ 2 part of dipotassium hydrogen phosphate, 0.5 ~ 1 part of potassium dihydrogen phosphate, phosphatase 11
~ 2 parts, 0.1 ~ 0.3 part of thiocarbamide, 1 ~ 1.5 part of aniline, 1 ~ 2 part of ethanol, 1 ~ 2 part of DTPMPA, 0.2 ~ 0.5 part of calcium chromate, potassium nitrate 1
~ 2 parts, 0.1 ~ 0.5 part of EDTA, 3 ~ 8 parts of water.
Preferably, including following parts by weight material：
2 parts of phenylalanine, 1 part of acetic acid, 1 part of lactic acid, 1 part of dipotassium hydrogen phosphate, 0.5 part of potassium dihydrogen phosphate, phosphatase 11 part, thiocarbamide 0.1
Part, 1 part of aniline, 1 part of ethanol, 1 part of DTPMPA, 0.2 part of calcium chromate, 1 part of potassium nitrate, 0.1 part of EDTA, 3 parts of water.
Preferably, including following parts by weight material：
Phenylalanine-3,4-quinone part, 5 parts of acetic acid, 2 parts of lactic acid, 2 parts of dipotassium hydrogen phosphate, 1 part of potassium dihydrogen phosphate, 2 parts of phosphoric acid, thiocarbamide 0.3
Part, 1.5 parts of aniline, 2 parts of ethanol, 2 parts of DTPMPA, 0.5 part of calcium chromate, 2 parts of potassium nitrate, 0.5 part of EDTA, 8 parts of water.
The preparation method of above-mentioned aqueous pickling of stainless steel Low corrison agent, the preparation method of corrosion inhibiter is as follows：
By phenylalanine, acetic acid, lactic acid, dipotassium hydrogen phosphate, potassium dihydrogen phosphate, phosphoric acid, ethanol, DTPMPA, calcium chromate, nitric acid
Potassium, EDTA are added to the water, and are heated to 30 ~ 35 DEG C, then thiocarbamide and aniline are added dropwise in proportion, are uniformly mixed, have both obtained aqueous
Pickling of stainless steel Low corrison agent.
Wherein, mixing speed is 50 ~ 100rpm.
Wherein, mixing time is 30 ~ 60min
DTPMPA is a kind of new surfactant, is favorably improved the surface tension of passivating solution, improves passivation effect.
Phenylalanine, acetic acid, lactic acid belong to weak acid in corrosion inhibiter, relative to traditional HNO3, HF have environmental protection, protection
The healthy of operator waits effect.
Beneficial effect：
The invention provides a kind of aqueous pickling of stainless steel Low corrison agent, the passivating solution is divided into corrosion inhibiter and passivator, used
When both are mixed, the passivating solution has a nontoxic, environmental protection, the advantage such as good passivation effect.
Embodiment
According to following embodiments, the present invention may be better understood.However, as it will be easily appreciated by one skilled in the art that real
Apply the content described by example and be merely to illustrate the present invention, without should be also without limitation on sheet described in detail in claims
Invention.
Embodiment 1：
Phenylalanine-3,4-quinone part, 5 parts of acetic acid, 2 parts of lactic acid, 2 parts of dipotassium hydrogen phosphate, 1 part of potassium dihydrogen phosphate, 2 parts of phosphoric acid, thiocarbamide 0.3
Part, 1.5 parts of aniline, 2 parts of ethanol, 2 parts of DTPMPA, 0.5 part of calcium chromate, 2 parts of potassium nitrate, 0.5 part of EDTA, 8 parts of water.
Embodiment 2：
2 parts of phenylalanine, 1 part of acetic acid, 1 part of lactic acid, 1 part of dipotassium hydrogen phosphate, 0.5 part of potassium dihydrogen phosphate, phosphatase 11 part, thiocarbamide 0.1
Part, 1 part of aniline, 1 part of ethanol, 1 part of DTPMPA, 0.2 part of calcium chromate, 1 part of potassium nitrate, 0.1 part of EDTA, 3 parts of water.
Embodiment 3：The influence of phenylalanine, acetic acid, lactic acid to passivation film properties.
The ratio of phenylalanine, acetic acid, lactic acid in corrosion inhibiter is adjusted, the ratio of remaining component is as follows：Dipotassium hydrogen phosphate 1
Part, 0.5 part of potassium dihydrogen phosphate, phosphatase 11 part, 0.1 part of thiocarbamide, 1 part of aniline, 1 part of ethanol, 1 part of DTPMPA, 0.2 part of calcium chromate,
1 part of potassium nitrate, 0.1 part of EDTA, 3 parts of water.
As shown in table 1, testing result is shown in Table 2 to regulation ratio.
The phenylalanine of table 1, acetic acid, lactic acid mass ratio
| Numbering | Phenylalanine | Acetic acid | Lactic acid |
| 1 | 0 | 0 | 0 |
| 2 | 2 | 0 | 0 |
| 3 | 0 | 1 | 0 |
| 4 | 0 | 0 | 1 |
| 5 | 2 | 1 | 1 |
The influence of the phenylalanine of table 2, acetic acid, lactic acid to passivation film properties
Embodiment 5：Influences of the DTPMPA to passivation film properties
Concentration of the DTPMPA in passivator is adjusted, the content of remaining component is by as follows：2 parts of phenylalanine, 1 part of acetic acid, lactic acid 1
Part, 1 part of dipotassium hydrogen phosphate, 0.5 part of potassium dihydrogen phosphate, phosphatase 11 part, 0.1 part of thiocarbamide, 1 part of aniline, 1 part of ethanol, calcium chromate 0.2
Part, 1 part of potassium nitrate, 0.1 part of EDTA, 3 parts of water.
The DTPMPA of table 5 content
| Numbering | DTPMPA |
| 6 | 0 |
| 7 | 1 |
| 8 | 2 |
| 9 | 3 |
Influences of the DTPMPA of table 6 to passivation film properties
Claims (6)
1. a kind of aqueous pickling of stainless steel Low corrison agent, it is characterised in that including following parts by weight material：
2 ~ 3 parts of phenylalanine, 1 ~ 5 part of acetic acid, 1 ~ 2 part of lactic acid, 1 ~ 2 part of dipotassium hydrogen phosphate, 0.5 ~ 1 part of potassium dihydrogen phosphate, phosphatase 11
~ 2 parts, 0.1 ~ 0.3 part of thiocarbamide, 1 ~ 1.5 part of aniline, 1 ~ 2 part of ethanol, 1 ~ 2 part of DTPMPA, 0.2 ~ 0.5 part of calcium chromate, potassium nitrate 1
~ 2 parts, 0.1 ~ 0.5 part of EDTA, 3 ~ 8 parts of water.
2. aqueous pickling of stainless steel Low corrison agent according to claim 1, it is characterised in that including following parts by weight thing
Matter：
2 parts of phenylalanine, 1 part of acetic acid, 1 part of lactic acid, 1 part of dipotassium hydrogen phosphate, 0.5 part of potassium dihydrogen phosphate, phosphatase 11 part, thiocarbamide 0.1
Part, 1 part of aniline, 1 part of ethanol, 1 part of DTPMPA, 0.2 part of calcium chromate, 1 part of potassium nitrate, 0.1 part of EDTA, 3 parts of water.
3. aqueous pickling of stainless steel Low corrison agent according to claim 1, it is characterised in that including following parts by weight thing
Matter：
Phenylalanine-3,4-quinone part, 5 parts of acetic acid, 2 parts of lactic acid, 2 parts of dipotassium hydrogen phosphate, 1 part of potassium dihydrogen phosphate, 2 parts of phosphoric acid, thiocarbamide 0.3
Part, 1.5 parts of aniline, 2 parts of ethanol, 2 parts of DTPMPA, 0.5 part of calcium chromate, 2 parts of potassium nitrate, 0.5 part of EDTA, 8 parts of water.
4. the preparation method of aqueous pickling of stainless steel Low corrison agent described in claim 1, it is characterised in that the preparation of corrosion inhibiter
Method is as follows：
By phenylalanine, acetic acid, lactic acid, dipotassium hydrogen phosphate, potassium dihydrogen phosphate, phosphoric acid, ethanol, DTPMPA, calcium chromate, nitric acid
Potassium, EDTA are added to the water, and are heated to 30 ~ 35 DEG C, then thiocarbamide and aniline are added dropwise in proportion, are uniformly mixed, have both obtained aqueous
Pickling of stainless steel Low corrison agent.
5. the preparation method of aqueous pickling of stainless steel Low corrison agent according to claim 4, it is characterised in that mixing speed
For 50 ~ 100rpm.
6. the preparation method of aqueous pickling of stainless steel Low corrison agent according to claim 4, it is characterised in that mixing time
For 30 ~ 60min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710655186.8A CN107326352A (en) | 2017-08-03 | 2017-08-03 | A kind of aqueous pickling of stainless steel Low corrison agent |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710655186.8A CN107326352A (en) | 2017-08-03 | 2017-08-03 | A kind of aqueous pickling of stainless steel Low corrison agent |
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| Publication Number | Publication Date |
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| CN107326352A true CN107326352A (en) | 2017-11-07 |
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| CN201710655186.8A Pending CN107326352A (en) | 2017-08-03 | 2017-08-03 | A kind of aqueous pickling of stainless steel Low corrison agent |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108914135A (en) * | 2018-06-21 | 2018-11-30 | 北京万邦达环保技术股份有限公司 | A kind of pickling solution and acid washing method |
-
2017
- 2017-08-03 CN CN201710655186.8A patent/CN107326352A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108914135A (en) * | 2018-06-21 | 2018-11-30 | 北京万邦达环保技术股份有限公司 | A kind of pickling solution and acid washing method |
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Application publication date: 20171107 |