US1654716A - Rust-proofing process - Google Patents

Rust-proofing process Download PDF

Info

Publication number
US1654716A
US1654716A US107384A US10738426A US1654716A US 1654716 A US1654716 A US 1654716A US 107384 A US107384 A US 107384A US 10738426 A US10738426 A US 10738426A US 1654716 A US1654716 A US 1654716A
Authority
US
United States
Prior art keywords
articles
rust
iron
proofing
proofing process
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
US107384A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to US107384A priority Critical patent/US1654716A/en
Application granted granted Critical
Publication of US1654716A publication Critical patent/US1654716A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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

Definitions

  • the present invention relates to the treatment of ferrous metals to protect them against rusting and relates specifically to improvements in rust proofing processes such to Coslett 870,937 of Nov. 12, 1907.
  • the invention consists in preventing pro ofing' composition and in means for carrying out such an operation.
  • FIG. 40 one form of an apparatus by means of which the operation is carried out.
  • 1 indicates a tank or vat in which the solution of water phosphoric acid and iron filings is first boiled.
  • Indicated at 2 are metal sheets to be coated with the phosphate. These may be placed in suitable racks or cages (not shown) and are preferably evenly spacedas indicated.
  • a frame 3 Above the tank 1 and adapted to be raised 59 and lowered is a frame 3 carrying a series of rods 4 carrying at their lower ends padsplaced in a boiling bath or rolls 5 of material unafiected by the sol tion. These pads 5 will be long enough to extend the full width of the sheets 2 and large enough to rub lightly the adjacent surfaces of two sheets.
  • pads or rolls are preferably of cotton cloth or covered with this material but it is obvious other materials 'may be used. It is also obvious that other means than the specific apparatus shown may be used for the operation which consists in slowly and lightly rubbing the surface of the article during the rust proofing treatfment. v 'L .
  • the solution is first heated to boiling and the plates placed therein. Then while the heating is continued, the frame 3 is slowlymoved up and down until the coating has progressed to a suitable degree. The plates are thenremoved and dried.
  • I claim 1 The process which consists in treating iron or steel articles with a rust proofing solution adapted to form an iron compound upon the surface of said articles and at the same timesubjecting said articles to a treatment to prevent crystal growth upon the said surfaces.

Description

w. H. ALLEN RUST PROOFING PROCESS Jan. 3,1928. 1,654,716
Filed May '7. 1926' TOR.
A TTORNEYL V as set out in the patent crystal growth of the phosphate rust Fatented Jan. 3, 1928.
PATENT OFFICE.
warm; 3. summer narnorr, MICHIGAN.
:cnsr-rnoorms rnocnss.
Application filed m s, 1926. serial No. 107,384.
The present invention relates to the treatment of ferrous metals to protect them against rusting and relates specifically to improvements in rust proofing processes such to Coslett 870,937 of Nov. 12, 1907.
lln the practice of the Coslett process iron or steel articles are containing water, phosphoric acid andirfon 19 filings and allowed to remain for a time.
The articles in this treatment acquire coating of phosphate of iron whichmilheres firmly and afiords protection. of the artiole against the oxidizingacti-on ofair'and moisture. p
In carrying out the outlined process on articles which are subsequently to be enameled, it has been found that such a1.- ticles especially metal sheets, frequently 29 have their surfaces so roughened by the coating that, when enameled, they do not present the desirable smooth polished surface. q It is among the objects of the present in- 29 ventio'n therefore to prevent this rough deposit and produce rust proofed articles which are quitesmooth on their surfaces and which. when *bsequently enameled shall present the characteristic smooth polished surface.
7 30 (Another object is means by which such operation may be accomplished.
With these and other objects in view as will readily appear to those skilled in the art the invention consists in preventing pro ofing' composition and in means for carrying out such an operation.
Referring to the drawing, the figure is a more or less diagrammatic representation,
40 one form of an apparatus by means of which the operation is carried out. In the drawing, 1 indicates a tank or vat in which the solution of water phosphoric acid and iron filings is first boiled. Indicated at 2 are metal sheets to be coated with the phosphate. These may be placed in suitable racks or cages (not shown) and are preferably evenly spacedas indicated.
' Above the tank 1 and adapted to be raised 59 and lowered is a frame 3 carrying a series of rods 4 carrying at their lower ends padsplaced in a boiling bath or rolls 5 of material unafiected by the sol tion. These pads 5 will be long enough to extend the full width of the sheets 2 and large enough to rub lightly the adjacent surfaces of two sheets.
These pads or rolls are preferably of cotton cloth or covered with this material but it is obvious other materials 'may be used. It is also obvious that other means than the specific apparatus shown may be used for the operation which consists in slowly and lightly rubbing the surface of the article during the rust proofing treatfment. v 'L .In carrying outthe improved process, the solution is first heated to boiling and the plates placed therein. Then while the heating is continued, the frame 3 is slowlymoved up and down until the coating has progressed to a suitable degree. The plates are thenremoved and dried.
Havingnow described the invention andt-h-e preferred form. of embodiment thereof it is to be understood that the said invention is not to be limitedto the specific details. herein described and shown but only by the scope of the claims which follow.-
I claim 1. The process which consists in treating iron or steel articles with a rust proofing solution adapted to form an iron compound upon the surface of said articles and at the same timesubjecting said articles to a treatment to prevent crystal growth upon the said surfaces.
2. The process which consists in treating iron o1 steel articles with arust proofing solution adapted to form an iron phosphate upon same ment to prevent crystal growth upon the said surfaces. A
3.; The process which consists in treating iron or' steel articles with afrust proofing solution adapted to form an iron compound upon the surface of said articles and at the same time rubbing lightly the surfaces of the articles with pads of material inert to the solution and coating.
wiLnIAM HELLER.
the surface of said articles and at the time subjecting said articles to a treat-
US107384A 1926-05-07 1926-05-07 Rust-proofing process Expired - Lifetime US1654716A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US107384A US1654716A (en) 1926-05-07 1926-05-07 Rust-proofing process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US107384A US1654716A (en) 1926-05-07 1926-05-07 Rust-proofing process

Publications (1)

Publication Number Publication Date
US1654716A true US1654716A (en) 1928-01-03

Family

ID=22316368

Family Applications (1)

Application Number Title Priority Date Filing Date
US107384A Expired - Lifetime US1654716A (en) 1926-05-07 1926-05-07 Rust-proofing process

Country Status (1)

Country Link
US (1) US1654716A (en)

Similar Documents

Publication Publication Date Title
US1334092A (en) Method of preparing metal to be galvanized or coated
US2390007A (en) Apparatus for continuously hot dip coating of tin on coiled strip
US1654716A (en) Rust-proofing process
US2989418A (en) Corrosion protection for zinc-surfaced and aluminum-surfaced articles
USRE17484E (en) Rtrstproofing process
US1946146A (en) Inorganic insulation for electrical sheets
US3632447A (en) Metal-treating process
US1714879A (en) Process for removing enamel
US832288A (en) Method of treating metal pipe.
US2584031A (en) Deenameling process
US1750270A (en) Coated iron and steel articles and method of making the same
US1279101A (en) Method of preparing pickled iron and steel for painting.
US2216376A (en) Art of coating metal articles
US1675134A (en) Metal-coated sheet and method of making the same
US1842162A (en) Treating silicon steel
US1467174A (en) Protection of iron and steel
US54538A (en) Improved method of neutralizing acid on sheet-iron
US2142869A (en) Treatment of nickel-chromium alloys
US3743547A (en) Protection of metallic surfaces
US1525904A (en) Protecting coating and process for producing same
US2798018A (en) Method of removing gaseous segregation from metals
US1440619A (en) Process of cleaning and surfacing sheet steel
US535587A (en) Manufacture of russia iron
US2034425A (en) Method of pack rolling ferrous metals
US1516117A (en) Method of preparing pickled steel sheets