US1761186A - Process of treating ferrous metal articles - Google Patents
Process of treating ferrous metal articles Download PDFInfo
- Publication number
- US1761186A US1761186A US289613A US28961328A US1761186A US 1761186 A US1761186 A US 1761186A US 289613 A US289613 A US 289613A US 28961328 A US28961328 A US 28961328A US 1761186 A US1761186 A US 1761186A
- Authority
- US
- United States
- Prior art keywords
- articles
- ferrous metal
- solution
- treating
- metal articles
- 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 - Lifetime
Links
- 238000000034 method Methods 0.000 title description 15
- 229910052751 metal Inorganic materials 0.000 title description 10
- 239000002184 metal Substances 0.000 title description 10
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 title description 9
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 8
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 7
- 239000011248 coating agent Substances 0.000 description 7
- 238000000576 coating method Methods 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 6
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 4
- 239000002253 acid Substances 0.000 description 3
- 238000011282 treatment Methods 0.000 description 3
- 238000005554 pickling Methods 0.000 description 2
- 241001125831 Istiophoridae Species 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 230000001464 adherent effect Effects 0.000 description 1
- NEHMKBQYUWJMIP-UHFFFAOYSA-N chloromethane Chemical compound ClC NEHMKBQYUWJMIP-UHFFFAOYSA-N 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 229910000398 iron phosphate Inorganic materials 0.000 description 1
- WBJZTOZJJYAKHQ-UHFFFAOYSA-K iron(3+) phosphate Chemical compound [Fe+3].[O-]P([O-])([O-])=O WBJZTOZJJYAKHQ-UHFFFAOYSA-K 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 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
- 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
- C23C22/73—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 characterised by the process
- C23C22/74—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 characterised by the process for obtaining burned-in conversion coatings
-
- 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
- C23C22/73—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 characterised by the process
Definitions
- the present invention relates to the treat- '5 reference to increasing the rust resisting qualities of said articles.
- the ferrous metal articles are provided with a rust proofing chemically adherent coating.
- Another object is a process of rust proofing such articles in which the rust proofing coating is provided in a greatly reduced time of treatment.
- this period may be reatly shortened by the modlfication herelnafter described and in fact, the time is decreased to approximately one third or less of the time required with t e Coslett process.
- the articles are first suitably cleaned byany conventional method, but preferably by pickling, and then thoroughly removing the pickling solution, unless phosphoric acid has been used, in which case thorough removal is not essential.
- the articles are then heated to a temperature nothigher than about 500 to 550 F., preferably, about 500 F., and while at this temperature, plunged into a bath of dilutedortho-phosphoric acid, allowed to remain a short time, say about a minute or two, and then taken out and transferred to a drying oven where they are then again heated to about 325to 450 F.
- the strength of acid that seems to give the'best results is about 33 per cent acid by weight to the balance water, though considerable variation from these proportions may be made. Repetition of the steps of treating, dipping and baking may be made if found desirable.
- phosphatic rust proofing solutions may be used with the preheating step to great advantage.
- phosphate solutions as those containing manganese or zinc or. iron phosphate or a mixture of these are contemplated by the above statement.
Landscapes
- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Treatment Of Metals (AREA)
Description
Patented June 3, 1930 UNITED STATES PATENT oFF cr:
MARLIN 0. Julian AND WILBERT A. nmomn,
OF DETROIT, 'IICHIGAN, ASS IGNORE,
.BY MESNE ASSIGNMENTS, TO PARKER RUST PROOF COMPANY, OF DETROIT, MICHI- GAR, A CORPORATION OF MICHIGAN 'IROCESS OF TREATING FERROUS METAL ARTICLES No Drawing.
The present invention relates to the treat- '5 reference to increasing the rust resisting qualities of said articles.
Among the objects of the invention is a process in whichthe ferrous metal articles are provided with a rust proofing chemically adherent coating.
Another object is a process of rust proofing such articles in which the rust proofing coating is provided in a greatly reduced time of treatment.
Other objects will readily occur to those skilled in the art upon reference to the following description.
In the Patent No.- 870,937, issued to Coslett, Nov. 12, 1907, there is described a process in which phosphoric acid is used to treat the surface of ferrous metal artic es in order to provide on such articles a coating of phosphatic materialf, which coating adheres strongly to the sur ace and is apparently chemically united therewith. This phosphatic coating is highly resistant to rust and protects the metal from oxidation.
In the practicing of the Coslett process and of various modifications which have since been made, it has been found necessary to treat the articles in these solutions and to leave them under such treatment for considerable time so that rust proofing by these various processes requires a period of several hours.
It has been found that this period may be reatly shortened by the modlfication herelnafter described and in fact, the time is decreased to approximately one third or less of the time required with t e Coslett process.
It has been found that by heating the suitably cleaned articles to within a rather narrow temperature range and immersing them, while still heated, in a solution prepared according to the Coslett process and retaining them in the solution for only a very short period, after which they are removed and baked at about the same temperature, as or slightly higher than that of the preheating step, that a protective coat will be formed on the arti- Appllcation filed June 30, 1928. Serial No. 289,818.
cles, which coating compares very favorably with thecoatings produced by the more coinplicated and extended processes.
In carrying out the process, the articles are first suitably cleaned byany conventional method, but preferably by pickling, and then thoroughly removing the pickling solution, unless phosphoric acid has been used, in which case thorough removal is not essential. The articles are then heated to a temperature nothigher than about 500 to 550 F., preferably, about 500 F., and while at this temperature, plunged into a bath of dilutedortho-phosphoric acid, allowed to remain a short time, say about a minute or two, and then taken out and transferred to a drying oven where they are then again heated to about 325to 450 F. The strength of acid that seems to give the'best results is about 33 per cent acid by weight to the balance water, though considerable variation from these proportions may be made. Repetition of the steps of treating, dipping and baking may be made if found desirable.
While the particular solution of diluted acid has been described as the preferred process, other phosphatic rust proofing solutions may be used with the preheating step to great advantage. Such phosphate solutions as those containing manganese or zinc or. iron phosphate or a mixture of these are contemplated by the above statement.
It is also contemplated that such a preheating step will be found advantageous in those treatments which provide the metal with a coating of ferroso-ferric oxid, as it seems that the preliminary heating puts the ferrous articles in a more receptive condition for action by such solutions. When, therefore, the expression rustproofing solution is used in the claims, it is intended to cover any of these active rust proofing solutions.
Now having described the invention and the preferred forms of embodiment thereof, it is We claim:
1. The process of treating articles having surfaces of ferrous metal, which comprises heating said articles to a temperature of about 500 to 550 F., immersing the heated articles in a rust-proofing solution, then removing said articles from said solution and baking at a. temperature of about 325 to 450 F.
2. The process of treating articles having surfaces of ferrous metal, which comprises heating said articles to a temperature of about 500 to 550 F., and immersing the heated articles in a phosphatic rust-proofing solution.
3. The process of treating articles having surfaces of ferrous metal, which comprises heating said articles to a temperature of about 500 to 550 F., immersing the heated articles in a phosphatic rustproofing solution, and removing said articles from said solution and baking at a temperature of about 325 to 450 F.
4. The process of treating articles having surfaces of ferrous metal, which comprises heating said articles to a temperature of about 500 to 550 F., and treating the heated articles with a solution of diluted phosphoric acid solution.
MARLIN G. BAKER. WILBERT A. DINGMAN.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US289613A US1761186A (en) | 1928-06-30 | 1928-06-30 | Process of treating ferrous metal articles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US289613A US1761186A (en) | 1928-06-30 | 1928-06-30 | Process of treating ferrous metal articles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1761186A true US1761186A (en) | 1930-06-03 |
Family
ID=23112289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US289613A Expired - Lifetime US1761186A (en) | 1928-06-30 | 1928-06-30 | Process of treating ferrous metal articles |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US1761186A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2501846A (en) * | 1945-10-03 | 1950-03-28 | Armco Steel Corp | Production of silicon steel sheet stock having the property of high surface resistivity |
| US2813813A (en) * | 1952-12-17 | 1957-11-19 | Parker Rust Proof Co | Process for forming protective phosphate coatings on metallic surfaces |
| US2845376A (en) * | 1953-06-09 | 1958-07-29 | Neilson Chemical Company | Method of coating metal surfaces with phosphate |
| US2984592A (en) * | 1958-03-19 | 1961-05-16 | Chem Metals Inc | Protective coatings for galvanized members |
| US3397092A (en) * | 1964-02-27 | 1968-08-13 | Hooker Chemical Corp | Corrosion-resistant coatings |
| US3520738A (en) * | 1966-01-18 | 1970-07-14 | Nippon Kokan Kk | Prevention of rusting of steel |
| US4231812A (en) * | 1978-03-14 | 1980-11-04 | Centre De Recherches Metallurgiques-Centrum Voor Research In De Metallurgie | Surface treatment of metal strip |
| US6333072B1 (en) | 1999-12-23 | 2001-12-25 | The United States Of America As Represented By The Department Of Energy | Method of producing adherent metal oxide coatings on metallic surfaces |
| US6569263B2 (en) * | 2001-05-29 | 2003-05-27 | The Regents Of The University Of California | Corrosion protection |
| EP2964805A4 (en) * | 2013-03-06 | 2016-10-12 | Quaker Chem Corp | High temperature conversion coating on steel and iron substrates |
-
1928
- 1928-06-30 US US289613A patent/US1761186A/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2501846A (en) * | 1945-10-03 | 1950-03-28 | Armco Steel Corp | Production of silicon steel sheet stock having the property of high surface resistivity |
| US2813813A (en) * | 1952-12-17 | 1957-11-19 | Parker Rust Proof Co | Process for forming protective phosphate coatings on metallic surfaces |
| US2845376A (en) * | 1953-06-09 | 1958-07-29 | Neilson Chemical Company | Method of coating metal surfaces with phosphate |
| US2984592A (en) * | 1958-03-19 | 1961-05-16 | Chem Metals Inc | Protective coatings for galvanized members |
| US3397092A (en) * | 1964-02-27 | 1968-08-13 | Hooker Chemical Corp | Corrosion-resistant coatings |
| US3520738A (en) * | 1966-01-18 | 1970-07-14 | Nippon Kokan Kk | Prevention of rusting of steel |
| US4231812A (en) * | 1978-03-14 | 1980-11-04 | Centre De Recherches Metallurgiques-Centrum Voor Research In De Metallurgie | Surface treatment of metal strip |
| US6333072B1 (en) | 1999-12-23 | 2001-12-25 | The United States Of America As Represented By The Department Of Energy | Method of producing adherent metal oxide coatings on metallic surfaces |
| US6569263B2 (en) * | 2001-05-29 | 2003-05-27 | The Regents Of The University Of California | Corrosion protection |
| EP2964805A4 (en) * | 2013-03-06 | 2016-10-12 | Quaker Chem Corp | High temperature conversion coating on steel and iron substrates |
| US9926628B2 (en) | 2013-03-06 | 2018-03-27 | Quaker Chemical Corporation | High temperature conversion coating on steel and iron substrates |
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