US1077480A - Process for the treatment of the surfaces of articles of aluminum. - Google Patents

Process for the treatment of the surfaces of articles of aluminum. Download PDF

Info

Publication number
US1077480A
US1077480A US35610907A US1907356109A US1077480A US 1077480 A US1077480 A US 1077480A US 35610907 A US35610907 A US 35610907A US 1907356109 A US1907356109 A US 1907356109A US 1077480 A US1077480 A US 1077480A
Authority
US
United States
Prior art keywords
aluminum
articles
treatment
coating
layer
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
US35610907A
Inventor
Albert Lang
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 US35610907A priority Critical patent/US1077480A/en
Application granted granted Critical
Publication of US1077480A publication Critical patent/US1077480A/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
    • C23C22/60—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 alkaline aqueous solutions with pH greater than 8
    • C23C22/66—Treatment of aluminium or alloys based thereon

Definitions

  • an oxidized coating or layer on'the aluminum, this la or having good fire-resisting pro erties whi e it is permanent and can if esired be colored or enameled; the layer of color does not rest loosely on the material but becomes permanently bound with the oxidized layer
  • Theoxidized layer may be produced either on the finished article or on the raw material.
  • the oxidation of the surface may be effected b the use of alkali, hydrochloric acid, or meta lic chlorids in solution which latter to the present invention it is at the same time produce a colored deposit.
  • Such metallic chloride may for instance be any of the chloride of ironor copper.
  • the aluminum object or sheet is dipped in the solution of alkali, hydrochloric acid .or the like, or is brushed over with this solution, and the article is subsequently heated to red heat or incandescence, whereupon, if hydrochloric acid ora chlorid has been used, the chlorin is driven old leaving a hydrate of aluminum, which latter is reduced to the oxid, (alumina), on further heating.
  • Anilin compounds may be used as coloring agents which become colored by oxidation, or anilin colors may be used which will form compounds of alumina "with the oxid layer.
  • the herein described method of treating the surface of aluminum which consists in coating the surface with an oxidizing agent and then subjecting the coated aluminum surface to the action of heat.

Description

' normed UNITED srnrus rn'rnnr onerou ALBERT LANG, OE KABLSRUHE, GERMANY.
PROCESS FOR THE TREATMENT OF TIE-IE SURFACES 01? ARTICLES 01: ALUMINUM.
No Drawing.
- Specification of Letters. Latent.
, Applicationfiled February 6, 1907. Serial No. 35$,109.
Patented Nov. 4, 1913.
To all whom it may concern:
Be it known that I, ALBERT Lane, a subject of the Grand Duke oi. Baden, Germany, residing at Karlsruhe, in'Ba-den, Germany, have invented a certain new and useful Process for the Treatment of the Surfaces of Articles of Aluminum, of which the following is a specification,
The employment of aluminum for cooking vessels, cart-ridge cases and for many other useful articles has been found to possess many disadvanta es on account of the low melting point of t e metal and the fact that it is not hard enough for various purposes, while, however," the low specific gravity wouldhave been of great value, Again the formation on the metal or" a layer or coating of oxid for example which would not be easily attacked has been considered impracticable hitherto. on account of the weak aflinity of aluminum for acids and alkalies; consequently manufacturers have satisfied themselves with the use of a coating of lacquer or of carbon, or with the application to the aluminum of layers of other metals either as a covering or as intermediateinsertions, but these expedients were not satisfactory for various reasons. It has been prptposed to color the layers of carbon deposit on the aluminum surface with metallic coloring matters, but of course this coloring is only incorporated with the external covering layers, and is not therefore firmly applied to the metal.
According possible to form an oxidized coating or layer on'the aluminum, this la or having good fire-resisting pro erties whi e it is permanent and can if esired be colored or enameled; the layer of color does not rest loosely on the material but becomes permanently bound with the oxidized layer Theoxidized layer may be produced either on the finished article or on the raw material.
The oxidation of the surface may be effected b the use of alkali, hydrochloric acid, or meta lic chlorids in solution which latter to the present invention it is at the same time produce a colored deposit. Such metallic chloride may for instance be any of the chloride of ironor copper. The aluminum object or sheet is dipped in the solution of alkali, hydrochloric acid .or the like, or is brushed over with this solution, and the article is subsequently heated to red heat or incandescence, whereupon, if hydrochloric acid ora chlorid has been used, the chlorin is driven old leaving a hydrate of aluminum, which latter is reduced to the oxid, (alumina), on further heating.
In oxidation as above described, by means of metallic salts, such as the chloride of copper and iron, a colored deposit is produced which-may conveniently form the basis for the coloring of the metal; iron gives a gray coloration, copper a black A coating of enamel may now be applied.
Anilin compounds may be used as coloring agents which become colored by oxidation, or anilin colors may be used which will form compounds of alumina "with the oxid layer.
Having thus described my invention 1 declare what I claim is: a
- 1. The herein described method of treating the surface of aluminum which consists in coating the surface with an oxidizing agent and then subjecting the coated aluminum surface to the action of heat.
v 2. The herein described method of treating the surface of aluminum which consists in coating the surface with a metallic oxidizing salt and then subjecting the coated aluminum surface to the action of heat.
3. The hhrein described method of treating the surface'of aluminum which consists in coating the surface with a metallic chlorid and then subjecting the coated aluminum surface to the-action oi hea in witness whereof I have hereunto set my hand in presence of two witnesses.
. Y 4 ALBERT LANG.
Witnesses:
Srerninn Hansen, M. 'finn'rnm.
US35610907A 1907-02-06 1907-02-06 Process for the treatment of the surfaces of articles of aluminum. Expired - Lifetime US1077480A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US35610907A US1077480A (en) 1907-02-06 1907-02-06 Process for the treatment of the surfaces of articles of aluminum.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US35610907A US1077480A (en) 1907-02-06 1907-02-06 Process for the treatment of the surfaces of articles of aluminum.

Publications (1)

Publication Number Publication Date
US1077480A true US1077480A (en) 1913-11-04

Family

ID=3145711

Family Applications (1)

Application Number Title Priority Date Filing Date
US35610907A Expired - Lifetime US1077480A (en) 1907-02-06 1907-02-06 Process for the treatment of the surfaces of articles of aluminum.

Country Status (1)

Country Link
US (1) US1077480A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2893114A (en) * 1953-12-04 1959-07-07 Roy A Halversen Hot working of metals
US3136656A (en) * 1964-06-09 Ferrous metal

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3136656A (en) * 1964-06-09 Ferrous metal
US2893114A (en) * 1953-12-04 1959-07-07 Roy A Halversen Hot working of metals

Similar Documents

Publication Publication Date Title
US1578254A (en) Protection of metals against corrosion
US1802695A (en) Bimetallic protective coating for iron tubes
US3012917A (en) Method of protecting metal surfaces
US1853369A (en) Formation of chromium alloy coatings
FR2219966A2 (en) Resin coating compsns. from metals - contg. metal ions to control coating wt.
US2777785A (en) Composition for and method of treating metals as well as the treated product
JPS6112035B2 (en)
US2559812A (en) Solution and method for coating zinc surfaces
US1077480A (en) Process for the treatment of the surfaces of articles of aluminum.
US2250508A (en) Treating zinc with organic acids
US2318656A (en) Coated metal article and method of making same
US2393665A (en) Corrosion resistant metal
GB458940A (en) Improvements in or relating to the production of coatings of tin or tin alloys on metal articles
US3085034A (en) Coating process
US510318A (en) Trandj
US3472681A (en) Protective coated asbestos cement panels
US3620939A (en) Coating for magnesium and its alloys and method of applying
US1456274A (en) Process of rendering metal nonoxidizable and the metal
US2001753A (en) Coated copper article and method of making the same
US1023291A (en) Coloring metals.
US564217A (en) Hatjs
US708363A (en) Art of enameling metal ware.
US909274A (en) Process of coating with metals.
US3857717A (en) Chemical resistant, temperature resistant lacquer-like inorganic coating composition
US2564661A (en) Steel plating method