US2674553A - Rustproofing - Google Patents

Rustproofing Download PDF

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Publication number
US2674553A
US2674553A US174662A US17466250A US2674553A US 2674553 A US2674553 A US 2674553A US 174662 A US174662 A US 174662A US 17466250 A US17466250 A US 17466250A US 2674553 A US2674553 A US 2674553A
Authority
US
United States
Prior art keywords
blades
acid
rust
cabinet
water vapor
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
US174662A
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English (en)
Inventor
Meyer J Shnitzler
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.)
Gillette Co LLC
Original Assignee
Gillette Co LLC
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
Priority to BE504744D priority Critical patent/BE504744A/xx
Application filed by Gillette Co LLC filed Critical Gillette Co LLC
Priority to US174662A priority patent/US2674553A/en
Priority to CH299721D priority patent/CH299721A/fr
Priority to GB17081/51A priority patent/GB720276A/en
Priority to DEG6585A priority patent/DE877086C/de
Priority to FR1039975D priority patent/FR1039975A/fr
Application granted granted Critical
Publication of US2674553A publication Critical patent/US2674553A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases

Definitions

  • My invention concerns a method of treating ferrous metal objects to prevent or reduce corrosion thereof and has particular reference to the rust-proofing of steel razor blades.
  • I dispense with the oil film entirely or I supplement its action by first treating the blades with a volatile compound capable by reaction with the raw metal surfaces of the blades of pro-viding a rust-inhibiting film thereon.
  • a volatile compound capable by reaction with the raw metal surfaces of the blades of pro-viding a rust-inhibiting film thereon.
  • I may subsequently package the blades, as disclosed in copending application, Serial No. 174,664 led July 19, 1950, in a container incorporating a compound which, in the environment of a typical home medicine cabinet, is capable of continuing gir supplementing the rust-preventing protec-
  • the volatile compound which I prefer for employment in my process is benzoic acid, but salcylic or phthalic acid, for example, may be used In these cases, the film is composed of an iron salt of the acid.
  • the compound in its volatilized form is brought into contact with the blades or other articles in company with water vapor, used as a carrier for the volatilized material.
  • water vapor used as a carrier for the volatilized material.
  • the water vapor has been found to promote the reaction between the compound and the ferrous metal giving the protective film.
  • the numeral I 0 denotes a pressure-tight generator or still of sylindrical cross section having a jacket I2 of insulating material.
  • a screen I4 is suitably supported within the vessel in spaced relation to the bottom thereof, the screen serving as a holder for the volatile compound, preferably benzoic acid as indicated. The supply of acid may be replenished as necessary through the door I6.
  • Heating means shown as an electric heater i8, serves to vaporize the water, supplied as required via line 20. 'Ilhe mixture of water vapor and volatilized acid is conveyed, via insulated line 2t, to a cabinet 26 which is under a lower perssure than that prevailing in the generator.
  • the cabinet is provided with a line 28 extending to an exhaust pump, not shown, and with a door 30, 32 at each end thereof, the doors being respectively inwardly and outwardly swingable.
  • the blades 34 to be rust-proofed are conveyed through the cabinet on a belt 38 traveling between the distributor cone 35 and the collection cone 36, the blades being carried on trays 40.
  • both the trays and the belt may be suitably perforated.
  • Blades 34 are supported on the trays by holders 44, the disposition of the blades being such that contact of the volatilized acid with both of the honed edges is assured. Where the blades are not double-edged they may be fitted in slots in the trays.
  • transport of the mixed vapors to the cabinet may be hastened by means of a gas, as air or nitrogen, introduced below the level of the water in the vessel I0.
  • a gas as air or nitrogen
  • the water bath is dispensed with and a mixture of steam and a diluent gas, as air or nitrogen, is introduced under the screen supporting the acid through the line 20.
  • a diluent gas as air or nitrogen
  • the pressure in the cabinet 26 may be about one inch of water above atmospheric pressure, for example.
  • Method of rust-proofing steel razor blades comprising contacting the same with an acid from the group consisting of benzoic, salicylic and phthalic acids, the acid being brought into contact with the blades as a vapor in company with water vapor.
  • Method of rust-proofing steel razor blades comprising contacting the blades with Vaporized benzoc acid in the presence of Water vapor.
  • Method of rust-proofing ferrous objects comprising contacting the same with an acid from the group consisting of benzoic, salicylic and phthalic acids, the acid being brought into contact With the object as a vapor in company with Water vapor.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
US174662A 1950-07-19 1950-07-19 Rustproofing Expired - Lifetime US2674553A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
BE504744D BE504744A (de) 1950-07-19
US174662A US2674553A (en) 1950-07-19 1950-07-19 Rustproofing
CH299721D CH299721A (fr) 1950-07-19 1951-07-17 Procédé et appareil pour le traitement d'objets en alliage ferreux.
GB17081/51A GB720276A (en) 1950-07-19 1951-07-18 Method for the treatment of ferrous objects
DEG6585A DE877086C (de) 1950-07-19 1951-07-18 Verfahren und Vorrichtung zur Behandlung von Gegenstaenden aus Eisen
FR1039975D FR1039975A (fr) 1950-07-19 1951-07-19 Perfectionnements aux procédés et aux appareils pour le traitement d'objets en alliages ferreux

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US174662A US2674553A (en) 1950-07-19 1950-07-19 Rustproofing

Publications (1)

Publication Number Publication Date
US2674553A true US2674553A (en) 1954-04-06

Family

ID=22637023

Family Applications (1)

Application Number Title Priority Date Filing Date
US174662A Expired - Lifetime US2674553A (en) 1950-07-19 1950-07-19 Rustproofing

Country Status (6)

Country Link
US (1) US2674553A (de)
BE (1) BE504744A (de)
CH (1) CH299721A (de)
DE (1) DE877086C (de)
FR (1) FR1039975A (de)
GB (1) GB720276A (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2816051A (en) * 1954-05-07 1957-12-10 Little Inc A Corrosion inhibiting composition for coating metal, coated metal and method of coating
US3072505A (en) * 1960-01-04 1963-01-08 Hokuriku Kako Kabushiki Kaisha Method for the surface oxidation of pulverized iron
US3073690A (en) * 1960-04-07 1963-01-15 Republic Steel Corp Method of grinding diamond-shaped recesses in metal-embossing roll
US3353514A (en) * 1964-12-09 1967-11-21 Emhart Corp Apparatus for applying coatings to articles of glassware
US3657120A (en) * 1970-03-23 1972-04-18 Feuerloschgeratewerk Neuruppin Method of stabilizing bromine-containing fire extinguishing halogenated hydrocarbon composition

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1090490B (de) * 1955-08-13 1960-10-06 Daubert Chemical Co Dampfphasen-Korrosionsschutzmittel zur Verhinderung von Metallkorrosionen und seine Anwendung
US2901821A (en) * 1955-11-18 1959-09-01 Detrex Chem Ind Aluminum coated with aluminum benzoate, and method and composition for making same
CA1081555A (en) * 1975-12-29 1980-07-15 Grover W. Rye Vapor treatment of metal tire cord
DE19834226C1 (de) 1998-07-29 2000-02-10 Excor Korrosionsforschung Gmbh Dampfphasen-Korrosionsinhibitoren, Verfahren zu deren Herstellung und deren Verwendung

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US135578A (en) * 1873-02-04 Improvement in treating tin scraps and obtaining useful products
US311294A (en) * 1885-01-27 Process of surface-coating iron
US773368A (en) * 1904-02-23 1904-10-25 George Bower Substitute for lithographic stones and method of making same.
US881221A (en) * 1908-01-28 1908-03-10 Augusto Bontempi Rust-proofing iron, steel, &c.
US949500A (en) * 1909-06-02 1910-02-15 William A Skinkle Process of bluing iron or steel articles.
US1012285A (en) * 1909-03-18 1911-12-19 Lawrence M Smith Apparatus for treating type.
US1141770A (en) * 1914-01-02 1915-06-01 John E Carnahan Method of bluing steel or iron sheets.
US2158278A (en) * 1934-12-10 1939-05-16 Cooper & Cooper Inc Process for treating metal
GB596160A (en) * 1945-07-23 1947-12-30 Edward George Stroud Improvements in or relating to packaging

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US135578A (en) * 1873-02-04 Improvement in treating tin scraps and obtaining useful products
US311294A (en) * 1885-01-27 Process of surface-coating iron
US773368A (en) * 1904-02-23 1904-10-25 George Bower Substitute for lithographic stones and method of making same.
US881221A (en) * 1908-01-28 1908-03-10 Augusto Bontempi Rust-proofing iron, steel, &c.
US1012285A (en) * 1909-03-18 1911-12-19 Lawrence M Smith Apparatus for treating type.
US949500A (en) * 1909-06-02 1910-02-15 William A Skinkle Process of bluing iron or steel articles.
US1141770A (en) * 1914-01-02 1915-06-01 John E Carnahan Method of bluing steel or iron sheets.
US2158278A (en) * 1934-12-10 1939-05-16 Cooper & Cooper Inc Process for treating metal
GB596160A (en) * 1945-07-23 1947-12-30 Edward George Stroud Improvements in or relating to packaging

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2816051A (en) * 1954-05-07 1957-12-10 Little Inc A Corrosion inhibiting composition for coating metal, coated metal and method of coating
US3072505A (en) * 1960-01-04 1963-01-08 Hokuriku Kako Kabushiki Kaisha Method for the surface oxidation of pulverized iron
US3073690A (en) * 1960-04-07 1963-01-15 Republic Steel Corp Method of grinding diamond-shaped recesses in metal-embossing roll
US3353514A (en) * 1964-12-09 1967-11-21 Emhart Corp Apparatus for applying coatings to articles of glassware
US3657120A (en) * 1970-03-23 1972-04-18 Feuerloschgeratewerk Neuruppin Method of stabilizing bromine-containing fire extinguishing halogenated hydrocarbon composition

Also Published As

Publication number Publication date
DE877086C (de) 1953-05-21
CH299721A (fr) 1954-06-30
FR1039975A (fr) 1953-10-12
GB720276A (en) 1954-12-15
BE504744A (de)

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