CN105039987A - Stainless steel etching solution composition - Google Patents
Stainless steel etching solution composition Download PDFInfo
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- CN105039987A CN105039987A CN201510505103.8A CN201510505103A CN105039987A CN 105039987 A CN105039987 A CN 105039987A CN 201510505103 A CN201510505103 A CN 201510505103A CN 105039987 A CN105039987 A CN 105039987A
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- stainless
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- etching solution
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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
- 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
- C23F1/00—Etching metallic material by chemical means
- C23F1/10—Etching compositions
- C23F1/14—Aqueous compositions
- C23F1/16—Acidic compositions
- C23F1/28—Acidic compositions for etching iron group metals
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- General Chemical & Material Sciences (AREA)
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Abstract
The invention belongs to the technical field of chemical products, and particularly relates to a stainless steel etching solution composition. The stainless steel etching solution composition comprises, by weight percentage, 0.5%-3% of corrosion inhibitor, 35%-50% of etching agent, 3%-10% of dispersing agent, 15%-30% of chelating agent, 2%-5% of accelerant and the balance water. The accelerant is a tetrahydroglyoxaline compound. The etching agent is one of sulfuric acid and hydrochloric acid or the composition of at least one of ferric trichloride, ferric trichloride and sodium chlorate and at least one of sulfuric acid and hydrochloric acid. Compared with the prior art, the stainless steel etching solution composition does not contain fluoride or chromic acid or nitric acid or other control raw materials, and the current stainless steel etching solution can be replaced. The stainless steel etching solution composition can work under the normal temperature, operation is safe, performance is stable, energy consumption is low, and the service cycle is long; and waste water can be processed completely according to the chemical deposition method to reach the emission standard.
Description
Technical field
The invention belongs to technical field of chemical products, particularly the stainless etchant of one.
Background technology
Stainless steel is stablized, not oxidizable, not perishable, adopt general chemical cannot process its surface, traditional mechanical grinding only can be leaned at present to remove burr or use the severe corrosive such as hydrofluoric acid, chromic acid medicament to carry out electrochemical etching, these medicaments work-ing life is short, corrodibility is large, and pollution to environment can be caused, operationally also there is potential safety hazard, slowly suffer restraints and forbid, and cannot control workpiece size, thus cause its suitability not strong.
In view of this, necessaryly provide a kind of stainless etchant, it is the control raw material such as fluoride, chromic acid and nitric acid not, can replace current stainless steel etching solution, it can operation at normal temperatures, operational safety, stable performance, consume low, life cycle is long, and waste water can reach emission standard according to chemical precipitation method process completely.
Summary of the invention
The object of the invention is to: for the deficiencies in the prior art, and a kind of stainless etchant is provided, it is the control raw material such as fluoride, chromic acid and nitric acid not, can replace current stainless steel etching solution, it can operation at normal temperatures, operational safety, stable performance, consume low, life cycle is long, and waste water can reach emission standard according to chemical precipitation method process completely.
To achieve these goals, the present invention adopts following technical scheme:
A kind of stainless etchant, by weight percentage, comprises following component:
Inhibiter 0.5% ~ 3%;
Etching reagent 35% ~ 50%;
Dispersion agent 3% ~ 10%;
Sequestrant 15% ~ 30%;
Promotor 2% ~ 5%;
Surplus is water;
Described inhibiter is imidazolinium compounds;
Described etching reagent is at least one in sulfuric acid, hydrochloric acid, or is the combination of at least one at least one in iron trichloride, Potcrate and sodium chlorate and sulfuric acid, hydrochloric acid.
One as the stainless etchant of the present invention is improved, and by weight percentage, comprises following component:
Inhibiter 1% ~ 2%;
Etching reagent 40% ~ 45%;
Dispersion agent 5% ~ 8%;
Sequestrant 20% ~ 27%;
Promotor 3% ~ 4%;
Surplus is water.
One as the stainless etchant of the present invention is improved, and by weight percentage, comprises following component:
Inhibiter 1.5%;
Etching reagent 42%;
Dispersion agent 6%;
Sequestrant 24%;
Promotor 3.5%;
Surplus is water.
One as the stainless etchant of the present invention is improved, and described imidazolinium compounds is at least one in tetrahydroglyoxaline, glyoxal ethyline quinoline, 2-ethyl imidazol(e) quinoline, 2 isopropyl imidazole quinoline, imidazoline quaternary ammonium salt and water-soluble imidazoline amide.
One as the stainless etchant of the present invention is improved, and described dispersion agent is at least one in butyl glycol ether, diethylene glycol ether, butyl and ethylene glycol ethyl ether.
One as the stainless etchant of the present invention is improved, and described sequestrant is at least one in citric acid, Trisodium Citrate, tartrate and Seignette salt.
One as the stainless etchant of the present invention is improved, and described promotor is at least one in Potassium Persulphate, Sodium Persulfate and Sulfothiorine.
One as the stainless etchant of the present invention is improved, and the pH value of described composition is less than or equal to 2.
Relative to prior art, imidazolinium compounds consistency is good, and thermostability is high, toxicity is low, apart from outside corrosion inhibitive function, also have scale inhibition and germicidal action, when metal contacts with acidic medium, imidazolinium compounds can form monomolecular adsorbed film in metallic surface, thus form the dual absorption of physics and chemistry, to improve the electropotential of metallic surface, it also can with some the corrosive elements bonding in solution, reduce its electropotential, reach the object of inhibition.And, the not control raw material such as fluoride, chromic acid and nitric acid in etching reagent of the present invention, by the cooperation of etching reagent, inhibiter, permeate agent and sequestrant etc., the synergistic function of this few person and the physical action of sequestrant is utilized to make the dissolving metals such as the nickel in stainless steel, chromium and iron and reach etch effect.The present invention can replace current stainless steel etching solution, pickle solution and polishing fluid, it can operation at normal temperatures, operational safety, stable performance, consume low, life cycle is long, and waste water can reach emission standard according to chemical precipitation method process completely, for different stainless steels, adjustment controling parameters is only needed to reach requirement, use therefore, it is possible to extend to each industry, suitability is strong, and can realize the control to workpiece size.
Embodiment
Below in conjunction with embodiment, the present invention and beneficial effect thereof are described in further detail, but embodiments of the present invention are not limited to this.
Embodiment 1
The stainless etchant of the one that the present embodiment provides, by weight percentage, comprises following component:
Inhibiter glyoxal ethyline quinoline 1.5%;
The combination 42% of etching reagent iron trichloride and hydrochloric acid;
Dispersion agent butyl glycol ether 6%;
Chelator acid citrate 24%;
Promotor Potassium Persulphate 3.5%;
Surplus is water.
Wherein, the mass ratio of iron trichloride and hydrochloric acid is 1:1.
The present invention can 100% stoste use, and do not add water, its pH value is less than 2, can soak use at normal temperature or at being heated to 45 ~ 60 DEG C, wherein, temperature during etching is 10 DEG C-60 DEG C, mirror polish then needs the temperature of 55 DEG C-60 DEG C, and soak time controls at 5min-30min.The present invention can deposit 24 months at 5 DEG C-40 DEG C.
During actually operating, controlling dimension, position, hole tolerance, weight loss of weight, gloss appearance and color etc. (control by the time) as requested.Because viscosity of the present invention is comparatively large, drag-out is more, therefore supplementary drag-out medicament is needed after non-stop run 12h, and due to dissolve stainless steel metal impurity can pollute composition, make its color blackening, corrosion speed is slack-off, if interpolation medicament and raised temperature still cannot meet, then needs more to renew liquid, generally speaking, use one month or effect slack-off time need change.
During use, first soak stainless steel with composition of the present invention, then wash twice with water, then soak with dewatering agent, and then wash twice with pure water, finally dry.The present invention can adjust flow process and parameter for different stainless steel and different requirement technique (silk-screen texturing, polishing, deburring, go crator or delustring), makes the variation of stainless steel outward appearance.
The temperature of composition and concentration have important impact to the time required for etching, below by #304 stainless steel being carried out to etching operation to study temperature and concentration to the impact of etching period, wherein, concentration need measure baume (unit is Be) with specific gravity hydrometer, and acquired results is as shown in table 1:
Table 1: the concentration of composition and temperature are on the impact of etching required time
| Temperature/concentration | 36 Be～38Be | 34 Be～36Be | 32 Be～34Be | 30 Be～32Be |
| 20℃ | 10 min～12min | 10 min～12min | 12 min～14min | 15 min～17min |
| 24℃ | 8min～10min | 8 min～10min | 10 min～12min | 12 min～14min |
| 28℃ | 4min～6min | 6min～8min | 8min～10min | 10 min～12min |
| 32℃ | 3min～5min | 4min～6min | 6min～8min | 8min～10min |
| 36℃ | 2min～3min | 3min～5min | 4min～6min | 6min～8min |
As can be seen from Table 1, at 36 DEG C, only need to spend three minutes, just can reach the corrosion weight loss effect needing at 20 DEG C to spend just can reach for 12 minutes, this shows, temperature is an important operating parameters.
The present invention removes weld for stainless steel and burr has positive effect, is applicable to the traditional technologys such as batch processing stamping parts, the pre-treatment of industrial baking oven baking vanish and stainless steel high speed corrosion polishing.
Embodiment 2
The stainless etchant of the one that the present embodiment provides, by weight percentage, comprises following component:
Inhibiter 2-ethyl imidazol(e) quinoline 1%;
Etching reagent hydrochloric acid 40%;
Dispersion agent diethylene glycol ether 5%;
Chelator acid citrate sodium 20%;
Promotor Sodium Persulfate 3%;
Surplus is water.
Embodiment 3
The stainless etchant of the one that the present embodiment provides, by weight percentage, comprises following component:
Inhibiter 2 isopropyl imidazole quinoline 2%;
The combination 45% of etching reagent sodium chlorate and hydrochloric acid;
Dispersion agent butyl 6%;
Sequestrant tartrate 18%;
Promotor Sulfothiorine 3%;
Surplus is water.
Wherein, the mass ratio of sodium chlorate and hydrochloric acid is 1:2.
Embodiment 4
The stainless etchant of the one that the present embodiment provides, by weight percentage, comprises following component:
Inhibiter imidazoline quaternary ammonium salt 2.5%;
Etching reagent sulfuric acid 48%;
Dispersion agent ethylene glycol ethyl ether 3.5%;
Sequestrant Seignette salt 22%;
Promotor Potassium Persulphate 2.2%;
Surplus is water.
Embodiment 5
The stainless etchant of the one that the present embodiment provides, by weight percentage, comprises following component:
Inhibiter water-soluble imidazoline amide 1.5%;
The combination 38% of etching reagent hydrochloric acid and Potcrate;
Dispersion agent butyl glycol ether 7%;
Chelator acid citrate 11%;
Chelator acid citrate sodium 12%;
Promotor Sodium Persulfate 3.5%;
Surplus is water.
Wherein, the mass ratio of hydrochloric acid and Potcrate is 1:3.
Embodiment 6
The stainless etchant of the one that the present embodiment provides, by weight percentage, comprises following component:
Inhibiter tetrahydroglyoxaline 0.8%;
Etching reagent hydrochloric acid 49%;
Dispersion agent butyl 2%;
Dispersion agent diethylene glycol ether 2%;
Sequestrant Seignette salt 16%;
Promotor Sodium Persulfate 4%;
Surplus is water.
The announcement of book and instruction according to the above description, those skilled in the art in the invention can also change above-mentioned embodiment and revise.Therefore, the present invention is not limited to embodiment disclosed and described above, also should fall in the protection domain of claim of the present invention modifications and changes more of the present invention.In addition, although employ some specific terms in this specification sheets, these terms just for convenience of description, do not form any restriction to the present invention.
Claims (8)
1. a stainless etchant, is characterized in that, by weight percentage, comprises following component:
Inhibiter 0.5% ~ 3%;
Etching reagent 35% ~ 50%;
Dispersion agent 3% ~ 10%;
Sequestrant 15% ~ 30%;
Promotor 2% ~ 5%;
Surplus is water;
Described inhibiter is imidazolinium compounds;
Described etching reagent is at least one in sulfuric acid, hydrochloric acid, or is the combination of at least one at least one in iron trichloride, Potcrate and sodium chlorate and sulfuric acid, hydrochloric acid.
2. stainless etchant according to claim 1, is characterized in that, by weight percentage, comprises following component:
Inhibiter 1% ~ 2%;
Etching reagent 40% ~ 45%;
Dispersion agent 5% ~ 8%;
Sequestrant 20% ~ 27%;
Promotor 3% ~ 4%;
Surplus is water.
3. stainless etchant according to claim 2, is characterized in that, by weight percentage, comprises following component:
Inhibiter 1.5%;
Etching reagent 42%;
Dispersion agent 6%;
Sequestrant 24%;
Promotor 3.5%;
Surplus is water.
4. the stainless etchant according to any one of claims 1 to 3, is characterized in that: described imidazolinium compounds is at least one in tetrahydroglyoxaline, glyoxal ethyline quinoline, 2-ethyl imidazol(e) quinoline, 2 isopropyl imidazole quinoline, imidazoline quaternary ammonium salt and water-soluble imidazoline amide.
5. the stainless etchant according to any one of claims 1 to 3, is characterized in that: described dispersion agent is at least one in butyl glycol ether, diethylene glycol ether, butyl and ethylene glycol ethyl ether.
6. the stainless etchant according to any one of claims 1 to 3, is characterized in that: described sequestrant is at least one in citric acid, Trisodium Citrate, tartrate and Seignette salt.
7. the stainless etchant according to any one of claims 1 to 3, is characterized in that: described promotor is at least one in Potassium Persulphate, Sodium Persulfate and Sulfothiorine.
8. the stainless etchant according to any one of claims 1 to 3, is characterized in that: the pH value of described composition is less than or equal to 2.
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105780025A (en) * | 2016-04-20 | 2016-07-20 | 安徽工业大学 | Room temperature low damage pickling solution of 300 series stainless steel tubes and pickling method thereof |
| CN106281291A (en) * | 2016-07-22 | 2017-01-04 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | A kind of liquid that solvable instrument dissolves under pick-up well |
| CN108360058A (en) * | 2018-03-23 | 2018-08-03 | 中山大学 | A kind of electrolyte and stainless steel engraving method for etching stainless steel |
| CN108456886A (en) * | 2018-03-05 | 2018-08-28 | 苏州科技大学 | A kind of silver-colored etching solution of selectivity |
| CN109811343A (en) * | 2019-03-19 | 2019-05-28 | 惠州市瑞翔丰科技有限公司 | Environmentally friendly etching solution and engraving method without ammonia nitrogen |
| CN110923715A (en) * | 2019-12-17 | 2020-03-27 | 江门市安诺特炊具制造有限公司 | Iron removing liquid and process for removing iron layer on surface of aluminum alloy |
| CN111172540A (en) * | 2019-12-30 | 2020-05-19 | 东莞赛诺高德蚀刻科技有限公司 | Preparation method of stainless steel radiating fin integrated capillary module |
| CN111226978A (en) * | 2020-03-18 | 2020-06-05 | 中国天辰工程有限公司 | Peracetic acid disinfectant |
| CN111607794A (en) * | 2020-06-17 | 2020-09-01 | 宁波福至新材料有限公司 | Method for improving etching quality of metal product |
| CN114174557A (en) * | 2019-07-30 | 2022-03-11 | 三菱瓦斯化学株式会社 | Composition, method for roughening surface of stainless steel using the same, roughened stainless steel, and method for producing the same |
| US11312048B2 (en) * | 2017-01-10 | 2022-04-26 | Guangdong Everwin Precision Technology Co., Ltd. | Surface treatment method of material, material product and composite material |
| CN115896786A (en) * | 2022-10-17 | 2023-04-04 | 湖北兴福电子材料股份有限公司 | Stainless steel etching solution |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105780025A (en) * | 2016-04-20 | 2016-07-20 | 安徽工业大学 | Room temperature low damage pickling solution of 300 series stainless steel tubes and pickling method thereof |
| CN106281291A (en) * | 2016-07-22 | 2017-01-04 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | A kind of liquid that solvable instrument dissolves under pick-up well |
| US11312048B2 (en) * | 2017-01-10 | 2022-04-26 | Guangdong Everwin Precision Technology Co., Ltd. | Surface treatment method of material, material product and composite material |
| CN108456886A (en) * | 2018-03-05 | 2018-08-28 | 苏州科技大学 | A kind of silver-colored etching solution of selectivity |
| CN108456886B (en) * | 2018-03-05 | 2019-08-13 | 苏州科技大学 | A kind of silver-colored etching solution of selectivity |
| CN108360058A (en) * | 2018-03-23 | 2018-08-03 | 中山大学 | A kind of electrolyte and stainless steel engraving method for etching stainless steel |
| CN109811343A (en) * | 2019-03-19 | 2019-05-28 | 惠州市瑞翔丰科技有限公司 | Environmentally friendly etching solution and engraving method without ammonia nitrogen |
| CN114174557A (en) * | 2019-07-30 | 2022-03-11 | 三菱瓦斯化学株式会社 | Composition, method for roughening surface of stainless steel using the same, roughened stainless steel, and method for producing the same |
| CN110923715A (en) * | 2019-12-17 | 2020-03-27 | 江门市安诺特炊具制造有限公司 | Iron removing liquid and process for removing iron layer on surface of aluminum alloy |
| CN110923715B (en) * | 2019-12-17 | 2021-12-17 | 江门市安诺特炊具制造有限公司 | Iron removing liquid and process for removing iron layer on surface of aluminum alloy |
| CN111172540A (en) * | 2019-12-30 | 2020-05-19 | 东莞赛诺高德蚀刻科技有限公司 | Preparation method of stainless steel radiating fin integrated capillary module |
| CN111226978A (en) * | 2020-03-18 | 2020-06-05 | 中国天辰工程有限公司 | Peracetic acid disinfectant |
| CN111607794A (en) * | 2020-06-17 | 2020-09-01 | 宁波福至新材料有限公司 | Method for improving etching quality of metal product |
| CN115896786A (en) * | 2022-10-17 | 2023-04-04 | 湖北兴福电子材料股份有限公司 | Stainless steel etching solution |
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