EP0019964B1 - Bain pour le polissage chimique de surfaces en acier - Google Patents
Bain pour le polissage chimique de surfaces en acier Download PDFInfo
- Publication number
- EP0019964B1 EP0019964B1 EP80200451A EP80200451A EP0019964B1 EP 0019964 B1 EP0019964 B1 EP 0019964B1 EP 80200451 A EP80200451 A EP 80200451A EP 80200451 A EP80200451 A EP 80200451A EP 0019964 B1 EP0019964 B1 EP 0019964B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- mixture
- acid
- normality
- acids
- aqueous solution
- Prior art date
- 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.)
- Expired
Links
- 238000005498 polishing Methods 0.000 title claims abstract description 42
- 239000000126 substance Substances 0.000 title claims abstract description 26
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 8
- 239000010959 steel Substances 0.000 title claims abstract description 8
- 239000000203 mixture Substances 0.000 claims abstract description 35
- 239000002253 acid Substances 0.000 claims abstract description 30
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims abstract description 20
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims abstract description 20
- 150000007513 acids Chemical class 0.000 claims abstract description 20
- 239000007864 aqueous solution Substances 0.000 claims abstract description 18
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims abstract description 13
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229920003086 cellulose ether Polymers 0.000 claims abstract description 11
- 229910017604 nitric acid Inorganic materials 0.000 claims abstract description 11
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims abstract description 10
- 239000004094 surface-active agent Substances 0.000 claims abstract description 10
- GKQHIYSTBXDYNQ-UHFFFAOYSA-M 1-dodecylpyridin-1-ium;chloride Chemical compound [Cl-].CCCCCCCCCCCC[N+]1=CC=CC=C1 GKQHIYSTBXDYNQ-UHFFFAOYSA-M 0.000 claims description 5
- 229920000609 methyl cellulose Polymers 0.000 claims description 3
- 239000001923 methylcellulose Substances 0.000 claims description 3
- 150000001335 aliphatic alkanes Chemical class 0.000 claims description 2
- 125000004432 carbon atom Chemical group C* 0.000 claims description 2
- 229960001927 cetylpyridinium chloride Drugs 0.000 claims description 2
- YMKDRGPMQRFJGP-UHFFFAOYSA-M cetylpyridinium chloride Chemical group [Cl-].CCCCCCCCCCCCCCCC[N+]1=CC=CC=C1 YMKDRGPMQRFJGP-UHFFFAOYSA-M 0.000 claims description 2
- YCPXWRQRBFJBPZ-UHFFFAOYSA-N 5-sulfosalicylic acid Chemical compound OC(=O)C1=CC(S(O)(=O)=O)=CC=C1O YCPXWRQRBFJBPZ-UHFFFAOYSA-N 0.000 claims 2
- 229910001220 stainless steel Inorganic materials 0.000 description 10
- 239000010935 stainless steel Substances 0.000 description 10
- WXHLLJAMBQLULT-UHFFFAOYSA-N 2-[[6-[4-(2-hydroxyethyl)piperazin-1-yl]-2-methylpyrimidin-4-yl]amino]-n-(2-methyl-6-sulfanylphenyl)-1,3-thiazole-5-carboxamide;hydrate Chemical compound O.C=1C(N2CCN(CCO)CC2)=NC(C)=NC=1NC(S1)=NC=C1C(=O)NC1=C(C)C=CC=C1S WXHLLJAMBQLULT-UHFFFAOYSA-N 0.000 description 8
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 8
- 238000000034 method Methods 0.000 description 5
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- 229910052759 nickel Inorganic materials 0.000 description 4
- 238000005282 brightening Methods 0.000 description 3
- 229910052804 chromium Inorganic materials 0.000 description 3
- 239000011651 chromium Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- YLGXILFCIXHCMC-JHGZEJCSSA-N methyl cellulose Chemical compound COC1C(OC)C(OC)C(COC)O[C@H]1O[C@H]1C(OC)C(OC)C(OC)OC1COC YLGXILFCIXHCMC-JHGZEJCSSA-N 0.000 description 2
- FFYRIXSGFSWFAQ-UHFFFAOYSA-N 1-dodecylpyridin-1-ium Chemical compound CCCCCCCCCCCC[N+]1=CC=CC=C1 FFYRIXSGFSWFAQ-UHFFFAOYSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- JYYOBHFYCIDXHH-UHFFFAOYSA-N carbonic acid;hydrate Chemical compound O.OC(O)=O JYYOBHFYCIDXHH-UHFFFAOYSA-N 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- DVQHRBFGRZHMSR-UHFFFAOYSA-N sodium methyl 2,2-dimethyl-4,6-dioxo-5-(N-prop-2-enoxy-C-propylcarbonimidoyl)cyclohexane-1-carboxylate Chemical compound [Na+].C=CCON=C(CCC)[C-]1C(=O)CC(C)(C)C(C(=O)OC)C1=O DVQHRBFGRZHMSR-UHFFFAOYSA-N 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229920003169 water-soluble polymer Polymers 0.000 description 1
Classifications
-
- 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
- C23F3/00—Brightening metals by chemical means
- C23F3/04—Heavy metals
- C23F3/06—Heavy metals with acidic solutions
Definitions
- the subject of the present invention is a composition of a bath for the chemical polishing of steel surfaces, in particular stainless steel.
- the chemical polishing of metal surfaces is a well known technique (electrolytic and chemical polishing of metals-W. J. Mc. G. Tegart-Dunod-1960-p. 122 et seq.).
- This technique consists in treating the metal surfaces to be polished, with baths of mineral acids containing suitable additives, in particular viscosity regulators, surfactants and possibly brighteners.
- aqueous baths are generally used containing, in admixture, nitric acid, hydrochloric acid and optionally phosphoric acid.
- a composition of a bath for the chemical polishing of stainless steel surfaces comprising, in aqueous solution, a mixture phosphoric acid (145 to 580 g / 1), nitric acid (17 to 85 g / I) and hydrochloric acid (16 to 80 g / 1), a viscosity regulator chosen from water-soluble polymers, a surfactant and sulfosalicylic acid as a brightening agent.
- Polishing baths according to this known composition are very effective. Used at a temperature of the order of 70 to 100 ° C, they make it possible to obtain in a few minutes, generally in less than three minutes, an optimum polishing and polishing of stainless steel surfaces alloyed with chromium and nickel.
- a disadvantage of these known polishing baths lies in their high speed of action, which makes them unusable for certain applications, in particular for polishing the internal face of the walls of large tanks, such as boilers, autoclaves or crystallizers.
- the time required for filling and emptying such tanks being generally much greater than the duration of the optimum chemical polishing treatment, it indeed becomes impossible to obtain a uniform polish of the wall, certain zones of the latter being insufficiently while others may be corroded.
- the invention aims to remedy the aforementioned drawbacks, by providing a composition of a bath for the chemical polishing of steel surfaces, in particular stainless steel, which has a moderate speed of action while nevertheless ensuring that it is obtained of polishes comparable to those obtained with known polishing baths. It aims in particular to provide a composition of a polishing bath which, used at a temperature of the order of -20 to 100 ° C., requires several hours of treatment to impart optimum polish to alloyed stainless steel surfaces. with chrome and nickel.
- the invention therefore relates to a bath for chemical polishing of steel surfaces, comprising, in aqueous solution, a mixture of phosphoric acid, hydrochloric acid and nitric acid, a viscosity regulator, a surfactant and sulfosalicylic acid as a brightening agent; according to the invention, the overall normality of the mixture of acids in the aqueous solution is between 1 and 6, the ratio between the normality of each acid in the mixture of acids and the overall normality of the latter is between 0, 05 and 0.80 for phosphoric acid, between 0.15 and 0.90 for hydrochloric acid and between 0; 001 and 0.80 for nitric acid, the viscosity regulator is a cellulose ether whose content, expressed in g / I of aqueous solution, is between 0.3 and 0.7 times the overall normality of the mixture of acids, the surfactant is alkylpyridinium chloride whose content, expressed in g / I of solution aqueous, is between
- the respective contents of phosphoric, hydrochloric and nitric acids, of cellulose ether, of alkylpyridinium chloride and of sulfosalicylic acid are chosen as a function of the nature of the metal treated, of the temperature of work and the desired duration for the polishing treatment.
- compositions which are very suitable for ensuring the chemical polishing of surfaces of stainless steel alloyed with chromium and nickel, in a time of between 2 and 24 hours are those for which the overall normality of the mixture of acids is between 1.5 and 3, the ratio between the normality of each acid in the mixture of acids and the overall normality of the latter being advantageously between 0.20 and 0.60 for phosphoric acid, between 0.25 and 0.75 for l hydrochloric acid and between 0.002 and 0.10, preferably 0.005 and 0.05, for nitric acid.
- the respective contents of cellulose ether, of alkylpyridinium chloride and of sulfosalicylic acid in the polishing bath according to the invention depend on its overall content of phosphoric, hydrochloric and nitric acids. According to the invention, it is generally advantageous that, in addition, the ratio between the weight of alkylpyridinium chloride and the weight of cellulose ether is between 0.5 and 1.5 and the ratio between the weight of chloride of alkylpyridinium and the weight of sulfosalicylic acid is between 1 and 3.
- Preferred compositions are those in which the weight of cellulose ether is equal to the weight of alkylpyridinium chloride and is twice the weight of sulfosalicylic acid.
- the cellulose ether used in the chemical polishing bath according to the invention must be soluble in water. Methylcellulose is particularly suitable.
- the alkylpyridinium chloride is preferably chosen from those derived from alkanes having from 10 to 18 carbon atoms. Cetylpyridinium chloride and laurylpyridinium chloride have been found to be particularly advantageous.
- a chemical polishing bath in accordance with the invention was used to polish the internal face of a stainless steel tank with a capacity of 27.5 m 3 and a diameter of 2.5 m, made of stainless steel of grade 316 L, which is a steel alloyed with chromium (16.0 to 18.8%), nickel (10.0 to 14.0%) and molybdenum (2.0 to 3.0%) (Techniques de l ⁇ Engineer-Metallurgy-Tome IM.323-17-March 1974).
- the tank was drained and rinsed with carbonate water.
- the entire interior surface of the tank was found to be shiny and uniformly smooth to the touch, with no roughness or corroded area.
- Example 2 By way of comparison, a tank similar to that of Example 1 was subjected to mechanical polishing using an abrasive, the grain size of which corresponded to No. 270 of the ASTM series of standard sieves.
- a comparison of Examples 1 and 2 shows that the polishing bath according to the invention makes it possible to obtain very high quality polishes in high capacity stainless steel tanks, thanks to the application of a chemical polishing technique using slow action.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- ing And Chemical Polishing (AREA)
- Coating With Molten Metal (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT80200451T ATE3065T1 (de) | 1979-05-25 | 1980-05-14 | Bad zum chemischen polieren von stahloberflaechen. |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7913556A FR2457315A1 (fr) | 1979-05-25 | 1979-05-25 | Bain pour le polissage chimique de surfaces en acier |
| FR7913556 | 1979-05-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0019964A1 EP0019964A1 (fr) | 1980-12-10 |
| EP0019964B1 true EP0019964B1 (fr) | 1983-04-13 |
Family
ID=9225941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP80200451A Expired EP0019964B1 (fr) | 1979-05-25 | 1980-05-14 | Bain pour le polissage chimique de surfaces en acier |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP0019964B1 (ja) |
| JP (1) | JPS5629673A (ja) |
| AT (1) | ATE3065T1 (ja) |
| CA (1) | CA1153675A (ja) |
| DE (1) | DE3062709D1 (ja) |
| FR (1) | FR2457315A1 (ja) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2578271A1 (fr) * | 1985-03-04 | 1986-09-05 | Solvay | Bains et procede pour le polissage chimique de surfaces en acier. |
| US5135610A (en) * | 1986-12-15 | 1992-08-04 | Solvay & Cie | Baths and process for chemical polishing of stainless steel surfaces |
| FR2608173B1 (fr) * | 1986-12-15 | 1993-07-16 | Solvay | Bains et procede pour le polissage chimique de surfaces en acier inoxydable |
| BE1003579A3 (fr) * | 1989-10-26 | 1992-04-28 | Solvay | Bains et procede pour le polissage chimique de surfaces en acier inxoydable. |
| BE1003670A3 (fr) * | 1990-02-23 | 1992-05-19 | Solvay | Bains et procede pour le polissage chimique de surfaces en acier inoxydable. |
| BE1004452A3 (fr) * | 1990-06-19 | 1992-11-24 | Solvay | Bains et procede pour le polissage chimique de surfaces en acier inoxydable. |
| FR2717829B1 (fr) * | 1994-03-28 | 1996-05-24 | Solvay | Bains et procédé pour le polissage chimique de surfaces en acier inoxydable. |
| CN102703937A (zh) * | 2012-05-24 | 2012-10-03 | 北京工业大学 | 一种涂层导体用不锈钢基带的抛光工艺 |
| CN104131301B (zh) * | 2014-07-01 | 2015-10-28 | 安徽宏发节能设备有限公司 | 一种添加杀菌防腐剂的适用于钢铁的抛光液及其制备方法 |
| CN104131293B (zh) * | 2014-07-01 | 2015-09-23 | 安徽拓普森电池有限责任公司 | 一种用于金属表面抛光的抛光液及其制备方法 |
| CN105970231B (zh) * | 2016-07-28 | 2018-04-13 | 北京动力机械研究所 | 不锈钢工件的抛光溶液 |
| JP7188746B2 (ja) * | 2018-12-04 | 2022-12-13 | 日本表面化学株式会社 | 化学研磨処理組成物及び金属材料の製造方法 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2662814A (en) * | 1949-08-27 | 1953-12-15 | Diversey Corp | Method and composition for chemically polishing metals |
| LU38281A1 (ja) * | 1959-03-09 | |||
| US3457107A (en) * | 1965-07-20 | 1969-07-22 | Diversey Corp | Method and composition for chemically polishing metals |
| US3839112A (en) * | 1973-04-16 | 1974-10-01 | Texas Instruments Inc | Temperature stable compositions and processes for brightening metals and alloys |
-
1979
- 1979-05-25 FR FR7913556A patent/FR2457315A1/fr active Granted
-
1980
- 1980-05-14 AT AT80200451T patent/ATE3065T1/de not_active IP Right Cessation
- 1980-05-14 DE DE8080200451T patent/DE3062709D1/de not_active Expired
- 1980-05-14 EP EP80200451A patent/EP0019964B1/fr not_active Expired
- 1980-05-21 JP JP6766780A patent/JPS5629673A/ja active Granted
- 1980-05-23 CA CA000352610A patent/CA1153675A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE3062709D1 (en) | 1983-05-19 |
| FR2457315A1 (fr) | 1980-12-19 |
| CA1153675A (fr) | 1983-09-13 |
| EP0019964A1 (fr) | 1980-12-10 |
| ATE3065T1 (de) | 1983-04-15 |
| JPS6315350B2 (ja) | 1988-04-04 |
| JPS5629673A (en) | 1981-03-25 |
| FR2457315B1 (ja) | 1983-03-25 |
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