US1219526A - Process for rust-proofing iron and steel. - Google Patents
Process for rust-proofing iron and steel. Download PDFInfo
- Publication number
- US1219526A US1219526A US12214816A US12214816A US1219526A US 1219526 A US1219526 A US 1219526A US 12214816 A US12214816 A US 12214816A US 12214816 A US12214816 A US 12214816A US 1219526 A US1219526 A US 1219526A
- Authority
- US
- United States
- Prior art keywords
- rust
- iron
- proofing
- articles
- steel
- 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
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title description 29
- 229910052742 iron Inorganic materials 0.000 title description 15
- 229910000831 Steel Inorganic materials 0.000 title description 9
- 239000010959 steel Substances 0.000 title description 9
- 238000000034 method Methods 0.000 title description 8
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 16
- 238000005554 pickling Methods 0.000 description 12
- 239000000243 solution Substances 0.000 description 10
- 229910019142 PO4 Inorganic materials 0.000 description 8
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 8
- 235000021317 phosphate Nutrition 0.000 description 8
- 229960004838 phosphoric acid Drugs 0.000 description 8
- 235000011007 phosphoric acid Nutrition 0.000 description 8
- 239000002253 acid Substances 0.000 description 6
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 6
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 3
- 229910052698 phosphorus Inorganic materials 0.000 description 3
- 239000011574 phosphorus Substances 0.000 description 3
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 230000001464 adherent effect Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 2
- 239000010452 phosphate Substances 0.000 description 2
- KYARBIJYVGJZLB-UHFFFAOYSA-N 7-amino-4-hydroxy-2-naphthalenesulfonic acid Chemical compound OC1=CC(S(O)(=O)=O)=CC2=CC(N)=CC=C21 KYARBIJYVGJZLB-UHFFFAOYSA-N 0.000 description 1
- 150000001447 alkali salts Chemical class 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 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
- C23C22/78—Pretreatment of the material to be coated
Definitions
- This invention relates to the rust-proofing of iron and steel through the .use of a solution of phosphoric acid or of acid ferrlc phosphates, with or without manganic OXid,
- the rust-proofing bath preferably a saturated ferro-ferric I acid phosphate solution, may be prepared in any desirable manner ⁇ those described in the Richards Patent No. 1,069,903, dated August 12, 1913, or in the Allen Patent No. 1,167 966, dated January 11, 1916, being cited as examples.
- the pickling bath is preferably from fifteen to twenty per cent.
- phosphoric acid and is kept at or near the boiling point. When iron or steel articles are placed therein the acid dissolves the iron and loosens the scale and other insoluble oxids.
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)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Description
D sTATns PATEET caries.
WILLIAM H. ALLEN, 015 DETROIT, MICHIGAN, ASSIGNOR To PARKER RUST PRoOE COMPANY OF AMERIOA, OE DETROIT, MICHIGAN, A CORPORATION OF MICHIGAN.
PROCESS FOR RUST-PROOFING IRON AND STEEL.
No Drawing. 9
To all whom it may concern:
Be it known that I, WILLIAM H. ALLEN, a citizen of the United States, and residing at Detroit, in the county of Wayne and State of Michigan, have invented a new and Improved Process for Rust-Proofing Iron and Steel, of which the following is a specification.
This invention relates to the rust-proofing of iron and steel through the .use of a solution of phosphoric acid or of acid ferrlc phosphates, with or without manganic OXid,
and it consists in removing the scale or other oxids from the surfaces to be rustproofed by means of a. strong, preferably hot, solution of phosphoric acid, and then immediately transferring the articles to the rust-proofing bath. The rust-proofing bath, preferably a saturated ferro-ferric I acid phosphate solution, may be prepared in any desirable manner} those described in the Richards Patent No. 1,069,903, dated August 12, 1913, or in the Allen Patent No. 1,167 966, dated January 11, 1916, being cited as examples.
This process of pickling cannot be. properly performed by sulfuric acid for the reason that the removal of all traces of its basic salts of iron is practically impossible, and as these basic sulfates are insoluble in the rust-proofing bath, blotches result which But when the articles are taken from the 4 hot strong phosphoric acid pickling bath and plunged immediately and before the solution can evaporate into the rust-proofing bath which is preferably composed of a sat- Specification of Letters Patent.
Application filed September 25, 1916. Serial No. 122,148.
Patented Mar. 20, 19119.
urated aqueous solution of acid ferrous and ferric phosphates, no such insoluble salts will be formed; the acid clinging to the articles will be taken up by the rust-proofing bath and there will be'formed on the articles being treated the desired black surface of basic phosphates of iron which are practically unaffected by the atmosphere.
The pickling bath is preferably from fifteen to twenty per cent. phosphoric acid and is kept at or near the boiling point. When iron or steel articles are placed therein the acid dissolves the iron and loosens the scale and other insoluble oxids.
1. The process of rust-proofing articles of iron and steel which consists in placing the same in a pickling solution of phosphoric acid to remove the scale and other insoluble oxids and then immediately submerging these. articles in a rust-proofing bath containing compounds of phosphorus before .the adherent pickling solution has time to .evaporate. I
2. The process of rust-proofing articles of iron and steel which consists in placing J them in a hot pickling solution of phos-- phoric acid to remove the scale and other insoluble Oxids, then taking the articles from this solution and before the pickling solu-.
tion hashad time to evaporate submerging the articles in an aqueous solution of acid ferrous and ferric ,phosphates until black basic phosphates of iron are formed on the surfaces of such articles.
3. The process of rust-proofing articles of iron and steel whichconsists in placing the same. in a pickling bath consisting of about five parts "of watei" and one part of phosphoric 'acid to remove the scale and other insoluble oxids and then immediately before the adherent moisture has ,time to evaporate, submerging these articles in a rust-proofing bath containing compounds of phosphorus. 4. The-process of rust-proofing them in a pickling sclutionof phosphoric acid, then taking the articles from thissolution and before the pickling solution has articlesof iron and steel which consists in placing I I 1,219,526 I had time to evaporate submerging-the articles in a bath containing an aqueous solu tion of a phosphate of iron.
5. The process of rust-proofing articlesof 5- iron and steel which consists in placing them in a pickling solutionof phosphoric acid, then takingthe' articles from this solution and before the pickling solution-has had time to evaporate submerging the articles in a bath containing a form of phosphorus 10 until basic phosphates of iron are formed on the surface of such article.
WILLIAM H. ALLEN.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US12214816A US1219526A (en) | 1916-09-25 | 1916-09-25 | Process for rust-proofing iron and steel. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US12214816A US1219526A (en) | 1916-09-25 | 1916-09-25 | Process for rust-proofing iron and steel. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1219526A true US1219526A (en) | 1917-03-20 |
Family
ID=3287403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US12214816A Expired - Lifetime US1219526A (en) | 1916-09-25 | 1916-09-25 | Process for rust-proofing iron and steel. |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US1219526A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2514149A (en) * | 1948-09-04 | 1950-07-04 | Parker Rust Proof Co | Coating of metal surfaces |
| US2552874A (en) * | 1950-05-01 | 1951-05-15 | American Chem Paint Co | Method of phosphatizing ferriferous surfaces |
-
1916
- 1916-09-25 US US12214816A patent/US1219526A/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2514149A (en) * | 1948-09-04 | 1950-07-04 | Parker Rust Proof Co | Coating of metal surfaces |
| US2552874A (en) * | 1950-05-01 | 1951-05-15 | American Chem Paint Co | Method of phosphatizing ferriferous surfaces |
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