US1287605A - Solution for rust-proofing iron and steel. - Google Patents

Solution for rust-proofing iron and steel. Download PDF

Info

Publication number
US1287605A
US1287605A US10392816A US10392816A US1287605A US 1287605 A US1287605 A US 1287605A US 10392816 A US10392816 A US 10392816A US 10392816 A US10392816 A US 10392816A US 1287605 A US1287605 A US 1287605A
Authority
US
United States
Prior art keywords
solution
steel
iron
rust
proofing
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
Application number
US10392816A
Inventor
William H Allen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
PARKER RUST-PROOF Co OF AMERICA
PARKER RUST PROOF Co OF AMERICA
Original Assignee
PARKER RUST PROOF Co OF AMERICA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by PARKER RUST PROOF Co OF AMERICA filed Critical PARKER RUST PROOF Co OF AMERICA
Priority to US10392816A priority Critical patent/US1287605A/en
Application granted granted Critical
Publication of US1287605A publication Critical patent/US1287605A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • C23C22/05—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
    • C23C22/24—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 hexavalent chromium compounds
    • C23C22/33—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 hexavalent chromium compounds containing also phosphates

Definitions

  • acidic oxid salts possess the dizing ferrous iron in aci solution-into ferric iron, theacidic :oxids beingreduced to basic form and, together with other bases, enterin into combmation with the acid used, osphoric in the present case.
  • the chromate, dichroma/to, man anate or perma anate is mixed with thep osphoric.
  • a stock solution is usually prepared- Patented be... 17, 1918.
  • this solution When this solution is to be used, it is diluted with water until about 100- c. c. neutralize 150 c. c. tenth normal potassium hydrate solution to constitute a bath which is preferably heated to about, 100 (3., into which bath the articles of 'iron and steel to be treated are introduced. The iron and steel articles are attacked by the acid mixture, the action being intense at first, but after about two hours, it practically ceases,
  • the dichromates and permanganates of sodium and potassium are preferred for the' reason that they are easily obtainable in large quantities in the open market, but the chromates, dichromates, mang'anates and permanganates of the other metals can used for thispurpose. a a
  • a bath for rust-proofing iron and steel v consisting of a solution of a phosphoric acid and a chromate ofan alkali metal.
  • a bath for lust-proofing ironand steel consisting of. a solution of ordinary phosphoricia'cid dichroma H. ALLEN.

Description

UNITED STATES PATENT orr on.
WILLIAM H. ALLEN, OF DETROIT, MICHIGAN, ASSIGNOR TO PARKER RUST-PROOF COM v PANY OF AMERICA, OF DETROIT, MICHIGAN, A CORPORATION OF MICHIGAN.
SOLUTION FOR RUST-PROOFING IRON AND STEEL.
No Drawing.
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 oxid salt of an alkali metal (such as the chromate, dichromate, manganate or permanganate of potassium or sodium) or of an alkaline earth metal (such as chromate, dichromate, manganate, or permanganate of calcium, magnesium, barium or strontium) with phosphoric acid, which mixture may be dissolved in water. These various salts 'have much the same action in connection with phosphoric acid in the presence of articles of iron and steel. 'When the solution is raised to substantially the boiling point and artieles'of iron or steel are in-" serted, intense chemical action occurs, in; dicated by the rising of gas'bubbles. When.
available for the present purpose. .These property of oxi-.
acidic oxid salts possess the dizing ferrous iron in aci solution-into ferric iron, theacidic :oxids beingreduced to basic form and, together with other bases, enterin into combmation with the acid used, osphoric in the present case.
used as required. To produce the, solution, the chromate, dichroma/to, man anate or perma anate is mixed with thep osphoric.
acid an water in such ro portions that the one parts of so ution consist of ap-.
Specification of Letters Patent.
A stock solution is usually prepared- Patented be... 17, 1918.
Application filed June 18, 1916, Serial No. 108,928.
proximately .1265 parts of available oxygen, 50 parts of phosphoric acid and the remainder of water. When sodium dichromate is used the amounts are' Sodium dichromate .7 85 pounds Phosphoric acid (75%) 66.6 pounds Water qs. to 100.00 pounds One half pound of potassium permanganate may be substituted for the sodium dichromate in the above formula.
When this solution is to be used, it is diluted with water until about 100- c. c. neutralize 150 c. c. tenth normal potassium hydrate solution to constitute a bath which is preferably heated to about, 100 (3., into which bath the articles of 'iron and steel to be treated are introduced. The iron and steel articles are attacked by the acid mixture, the action being intense at first, but after about two hours, it practically ceases,
"an insoluble basic phosphate of iron being formed at the surface of the articles being treated. The temperature'is maintained at 100" (3., stock. solution being added from to time to keep up the strength of the at Y The articles of iron and steel are then removed from the bath, air dried, and if desired, are oiled, painted or enameled.
The dichromates and permanganates of sodium and potassium are preferred for the' reason that they are easily obtainable in large quantities in the open market, but the chromates, dichromates, mang'anates and permanganates of the other metals can used for thispurpose. a a
The proportions of the available" oxygen and acid can be changedlas desired and the -use of a stock solution omitted, but. the pro- I portions noted will be found to give satisfactory results within about the t1me specified. The complete action will require more time when lower tem eratures and weaker solutions are employe 'I claim:
" 1. A bath for rust-proofing iron and steel v consisting of a solution of a phosphoric acid and a chromate ofan alkali metal.
2.. A bath for lust-proofing ironand steel consisting of. a solution of ordinary phosphoricia'cid dichroma H. ALLEN.
US10392816A 1916-06-16 1916-06-16 Solution for rust-proofing iron and steel. Expired - Lifetime US1287605A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US10392816A US1287605A (en) 1916-06-16 1916-06-16 Solution for rust-proofing iron and steel.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10392816A US1287605A (en) 1916-06-16 1916-06-16 Solution for rust-proofing iron and steel.

Publications (1)

Publication Number Publication Date
US1287605A true US1287605A (en) 1918-12-17

Family

ID=3355172

Family Applications (1)

Application Number Title Priority Date Filing Date
US10392816A Expired - Lifetime US1287605A (en) 1916-06-16 1916-06-16 Solution for rust-proofing iron and steel.

Country Status (1)

Country Link
US (1) US1287605A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2601336A (en) * 1949-02-17 1952-06-24 Gen Electric Process of adhering silicone rubber to copper
US3720547A (en) * 1971-02-16 1973-03-13 Stauffer Chemical Co Permanganate final rinse for metal coatings

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2601336A (en) * 1949-02-17 1952-06-24 Gen Electric Process of adhering silicone rubber to copper
US3720547A (en) * 1971-02-16 1973-03-13 Stauffer Chemical Co Permanganate final rinse for metal coatings

Similar Documents

Publication Publication Date Title
US4168983A (en) Phosphate coating composition
US3597283A (en) Phosphating solutions for use on ferrous metal and zinc surfaces
EP0187917B1 (en) Process for improving the protection against corrosion of resin layers autophoretically deposited on metal surfaces
GB2098242A (en) Processes for phosphate coating metal surfaces
RU2428518C2 (en) Solution of phosphatisation with hydrogen peroxide and chelate forming carbonic acids
JP2005526902A (en) Non-chromic passivation methods for zinc and zinc alloys.
US2329065A (en) Corrosion resistant coating for metal surfaces
GB517049A (en) Improvements in or relating to improving the resistance of metals to corrosion
US2540314A (en) Process and compositions for applying phosphate coatings
US2067007A (en) Method of coating metal
US1287605A (en) Solution for rust-proofing iron and steel.
CN103451645A (en) Magnesium alloy coating agent
US4153479A (en) Acidic zinc phosphate solution and method
US2813812A (en) Method for coating iron or zinc with phosphate composition and aqueous solution therefor
WO2009017535A2 (en) High manganese cobalt-modified zinc phosphate conversion coating
US1947122A (en) Surface treatment of magnesium and magnesium base alloys
US2273234A (en) Method of and solution for producing a coated iron article
GB1591039A (en) Processes and compositions for coating metal surfaces
US3767476A (en) Method and composition for phosphatizing steel under pressure
US2351605A (en) Metal treatment
US1291352A (en) Solution for rust-proofing articles of iron and steel.
US3372064A (en) Method for producing black coatings on metal surfaces
US2045499A (en) Method of and material for coating metal surfaces
ES2912174T3 (en) Surface Treatment Agent, Surface Treatment Method, and Surface Treatment Metal Material
US3090710A (en) Method and solution for producing chromate coatings on zinc and zinc alloys