US1069903A - Treatment of iron or steel for preventing oxidation or rusting. - Google Patents

Treatment of iron or steel for preventing oxidation or rusting. Download PDF

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Publication number
US1069903A
US1069903A US71525812A US1912715258A US1069903A US 1069903 A US1069903 A US 1069903A US 71525812 A US71525812 A US 71525812A US 1912715258 A US1912715258 A US 1912715258A US 1069903 A US1069903 A US 1069903A
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Prior art keywords
iron
steel
rusting
treatment
preventing oxidation
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US71525812A
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Frank Rupert Granville Richards
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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
    • C23C22/34—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 fluorides or complex fluorides
    • C23C22/36—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 fluorides or complex fluorides containing also phosphates
    • C23C22/362—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 fluorides or complex fluorides containing also phosphates containing also zinc cations

Definitions

  • the oxidation or rusting'of articles composed of iron or steel or having a surface of iron or steel is prevented by subjecting them to the action of manganese dioxid and phosphoric acid by which action a rust preventing deposit of manganese and iron phosphates is formed thereon.
  • the solution is placed in a suitable bath or other receptacle and its temperature raised to boiling point.
  • the articles to be treated are then while thoroughly clean, immersed therein for from thlrty to ninety minutes as required according to the quality of the steel or iron under treatment. After this treatment the articles may be dried and oiled preparatory to use.
  • the method of preventing the oxidation of iron or steel consisting in forming thereon a rust-preventing deposit of manganese and iron phosphates by subjecting the metal to the action of manganese dioxid and phosphoric acid in substantially the proportions of three pounds of manganese dioxid and one half gallon of phosphoric acid dissolved in substantially one hundred and twenty gallons of water.

Description

UNTTED RTATES PATENT @FRTQE.
rRAn'K RUPERT GRANVILLE RICHARDS, or COVENTRY, ENGLAND.
TREATMENT OF IRON R STEEL FOR PREVENTING OXIDATION 0R RUSTING.
N 0 Drawing.
Specification of Letters Patent.
Patented Aug12,1913.
Application filed August 15, 1912. I Serial No. 715,258.
. Improvements Relating to the Treatment of Iron or Steel for Pr eventing Oxidation or Busting, of which the following is a specification,
In order to prevent oxidation or rusting it has been proposed to treat iron or steel with phosphoric acid and in some cases with a compound consisting of a dilute solution of ordinary phosphoric'acid and iron filings or ferrous phosphate.
According to this invention the oxidation or rusting'of articles composed of iron or steel or having a surface of iron or steel is prevented by subjecting them to the action of manganese dioxid and phosphoric acid by which action a rust preventing deposit of manganese and iron phosphates is formed thereon.
A solution in the following proportions has been found in practice to be satisfactory:
vLiquid concentrated ,phosphoric acid (1:5); 5 gallon Manganese dioxid 3 lbs. Water- 120 gallons.
The solution is placed in a suitable bath or other receptacle and its temperature raised to boiling point. The articles to be treated are then while thoroughly clean, immersed therein for from thlrty to ninety minutes as required according to the quality of the steel or iron under treatment. After this treatment the articles may be dried and oiled preparatory to use.
What I claim and desire to secure by Letters Patent of the United States is 1. The method of preventing the oxidization of iron or steel, consisting in forming thereon a rust-preventing deposit of manganese and iron phosphates by subjecting the metal to the action of manganese dioxid and phosphoric acid.
2. The method of preventing the oxidation of iron or steel, consisting in forming thereon a rust-preventing deposit of manganese and iron phosphates by subjecting the metal to the action of manganese dioxid and phosphoric acid in substantially the proportions of three pounds of manganese dioxid and one half gallon of phosphoric acid dissolved in substantially one hundred and twenty gallons of water.
3. A solution or compound for preventing oxidation 'or rusting of iron or steel, com prising manganese dioxid, phosphoric acid, and water in substantially the proportions of three pounds of the first, one half gallon of the second, and one hundred and twenty gallons of the third.
In testimony whereof I aflix my signature in presence of two witnesses.
FRANK RUPERT GRANVILLE RICHARDS.
US71525812A 1912-08-15 1912-08-15 Treatment of iron or steel for preventing oxidation or rusting. Expired - Lifetime US1069903A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US71525812A US1069903A (en) 1912-08-15 1912-08-15 Treatment of iron or steel for preventing oxidation or rusting.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US71525812A US1069903A (en) 1912-08-15 1912-08-15 Treatment of iron or steel for preventing oxidation or rusting.

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US1069903A true US1069903A (en) 1913-08-12

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US71525812A Expired - Lifetime US1069903A (en) 1912-08-15 1912-08-15 Treatment of iron or steel for preventing oxidation or rusting.

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3248249A (en) * 1963-06-28 1966-04-26 Telefiex Inc Inorganic coating and bonding composition
US4233088A (en) * 1979-03-29 1980-11-11 International Lead Zinc Research Organization, Inc. Phosphatization of steel surfaces and metal-coated surfaces

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3248249A (en) * 1963-06-28 1966-04-26 Telefiex Inc Inorganic coating and bonding composition
US4233088A (en) * 1979-03-29 1980-11-11 International Lead Zinc Research Organization, Inc. Phosphatization of steel surfaces and metal-coated surfaces

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