US1811298A - Process and product for protecting aluminium, magnesium and their alloys against corrosion - Google Patents

Process and product for protecting aluminium, magnesium and their alloys against corrosion Download PDF

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Publication number
US1811298A
US1811298A US401384A US40138429A US1811298A US 1811298 A US1811298 A US 1811298A US 401384 A US401384 A US 401384A US 40138429 A US40138429 A US 40138429A US 1811298 A US1811298 A US 1811298A
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Prior art keywords
magnesium
protecting
aluminium
against corrosion
product
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US401384A
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Boulanger Charles
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Continentale Parker SA
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/20—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding-up portions connected to a central panel from all sides to form a container body, e.g. of tray-like form
    • B65D5/22—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding-up portions connected to a central panel from all sides to form a container body, e.g. of tray-like form held erect by extensions of one or more sides being doubled-over to enclose extensions of adjacent sides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/20—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding-up portions connected to a central panel from all sides to form a container body, e.g. of tray-like form
    • B65D5/2004—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding-up portions connected to a central panel from all sides to form a container body, e.g. of tray-like form the container body having hollow side-walls
    • B65D5/2009—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding-up portions connected to a central panel from all sides to form a container body, e.g. of tray-like form the container body having hollow side-walls all formed by folding extensions of the side walls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/20—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding-up portions connected to a central panel from all sides to form a container body, e.g. of tray-like form
    • B65D5/2052—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding-up portions connected to a central panel from all sides to form a container body, e.g. of tray-like form characterised by integral closure-flaps
    • B65D5/2057—Inter-engaging self-locking flaps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/42—Details of containers or of foldable or erectable container blanks
    • B65D5/4295—Ventilating arrangements, e.g. openings, space elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/42—Details of containers or of foldable or erectable container blanks
    • B65D5/44—Integral, inserted or attached portions forming internal or external fittings
    • B65D5/441—Reinforcements
    • 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
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers

Definitions

  • the present invention has for itsobject a process of protecting the surface of aluminium, magnesium, or their alloys, against attacks by salt solutions,- such as chloride of sodium, or by moist air loaded with particles of these solutions, for instance sea air capable of causing the alteration or corrosion of the metal.
  • salt solutions such as chloride of sodium
  • moist air loaded with particles of these solutions for instance sea air capable of causing the alteration or corrosion of the metal.
  • The. process is essentially characterized by the fact that, by"means of a salt bath, a protecting deposit is formed at the surface of the metal, and that, to form this deposit, use
  • the metal chosen can I give at least two oxidesthe most oxygenated of which gives an alkalisalt soluble in an alkaline solution. By reduction, the corresponding oxide is brought back to the state of sub-oxide.
  • a manganate corresponding to managanic" acid MnO H O will be brought back to the state of'Mn Q or of Mn O which are stable, do not corrode when inuse, and form at the surface of aluminium, for instance, the. desired protecting layer.
  • this layer can be obtained by immersion of the metal part or member in a bath ofthe chosen salt, at a suitable degree of concentration and at a suitable temperature. 'The bath must be rendered alkaline by the'addition of an alkali'car.
  • bonate, droxide For instance for protecting an article made of aluminium, it can be immersed in a boiling solution of carbonate of sodium at about 1%, and of molybdate of sodium or potassium It has been found that the following ess, derived from the preceding one, .procures special advantages concerning the practical industrial carrying'out of the process.
  • the concentration of the solution in alkali carbonate varies but slightly inuse.
  • the treatment of the article to beprotected is efi'ected at boiling point; the duration of the treatment depends on the thickness of the deposit it is desired to obtain.
  • the protecting layer constitutes an excellent holding surface for any varnish, paint,
  • Claims Process for protecting articles made of aluminium, magnesium, or their alloys, against corrosion, of the said articles in a bath containing carbonate of soda and an alkali salt of the most oxygenated oxide of a metal capable of forming at least two oxides the mostoxygenated' one being soluble .in alkaline solution and the less oxygenated one being insoluble.
  • Process for protecting articles made of 1M comprising the treatment aluminium, magnesium, or their alloys, against corrosion, comprising the treatment of the said articles in a bath containing carbonate of soda and a mixture of alkali sul- 5 pho-molybdate and alkali phospho chromatei 3.
  • uranium, niobium, manganese and chromium are uranium, niobium, manganese and chromium.
  • ath containing carbonate of soda and an alkali salt of, a metal capable of givin atleast two oxides, such as vanadium, moly denum, tungsten, titanium, uranium, niobium, manganese and chromium.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)
  • Chemical Treatment Of Metals (AREA)
  • Prevention Of Electric Corrosion (AREA)

Description

Patented June 23, 1931 UNITED STATES PATENT OFFICE cILARLEs OULANGERQOF CLICHY, FRANCE, ASSIGNOR T0 soomrn con'rm'nm'nnn PARKER, 01 CLICHY, FRANCE PROCESS .AN'DIPRODUGT FOR PROTECTING ALU MINIUM, MAGNESIUM AND THEIR. Ad)- I LOYS AGAINST CORROSION No Drawing. Application filed October 21, 1929, Serial No. 401,384, and in Fra'nce November 10, 1928.
The present inventionhas for itsobject a process of protecting the surface of aluminium, magnesium, or their alloys, against attacks by salt solutions,- such as chloride of sodium, or by moist air loaded with particles of these solutions, for instance sea air capable of causing the alteration or corrosion of the metal. p The. process is essentially characterized by the fact that, by"means of a salt bath, a protecting deposit is formed at the surface of the metal, and that, to form this deposit, use
as chromates, vanadates, molybda-tes, tungstates, ititanates, uranates, niobates, manganates, etc., either alone, or mixed together.
' It is necessary that the metal chosen can I give at least two oxidesthe most oxygenated of which gives an alkalisalt soluble in an alkaline solution. By reduction, the corresponding oxide is brought back to the state of sub-oxide. Thus, a manganate corresponding to managanic" acid MnO H O, will be brought back to the state of'Mn Q or of Mn O which are stable, do not corrode when inuse, and form at the surface of aluminium, for instance, the. desired protecting layer.
The formation of this layer can be obtained by immersion of the metal part or member in a bath ofthe chosen salt, at a suitable degree of concentration and at a suitable temperature. 'The bath must be rendered alkaline by the'addition of an alkali'car.
bonate, droxide. For instance for protecting an article made of aluminium, it can be immersed in a boiling solution of carbonate of sodium at about 1%, and of molybdate of sodium or potassium It has been found that the following ess, derived from the preceding one, .procures special advantages concerning the practical industrial carrying'out of the process.
better preservation of-these salts in presence of moisture can be obtained by addition of a small quantity of a salt, such as borate' of soda, which is without action on the deposited oxide film be protected. 1
is made of solutions of alkali metal salts such-1 or oi? the corresponding alkali hyand on the metal to A mixture of these two salts gives, in
sti'tute an example, since use can be made of sulphoitun state instead of sulpho-molybdate, or o sulpho-uranate, with phosphovanadate or phospho-manganate, either alone or mixed together.
' By way of example, the following proportions can be indicated for protecting aluminium:
Mixture of'phospho-chromate and of sulpho-molybdate of potash0.5% of the bath.
Carbonate of Solvay soda: 1% of the solution. 1
The concentration of the solution in alkali carbonate varies but slightly inuse. The
loss of salt caused by deposition, will be compensated by the introduction of a; further quantity of salt in become weaker.
The above mentioned proportion as the bath will salts are stable, they do not alter under the action of air and moisture, they are extremely soluble. The mixing of these salts with carbonate of soda pro cures the same qualities of unalterableness and of solubility.
The treatment of the article to beprotected is efi'ected at boiling point; the duration of the treatment depends on the thickness of the deposit it is desired to obtain.
.' The protecting layer constitutes an excellent holding surface for any varnish, paint,
"fatty bodies, enamels, etc.
Claims 1. Process for protecting articles made of aluminium, magnesium, or their alloys, against corrosion, of the said articles in a bath containing carbonate of soda and an alkali salt of the most oxygenated oxide of a metal capable of forming at least two oxides the mostoxygenated' one being soluble .in alkaline solution and the less oxygenated one being insoluble.
2. Process for protecting articles made of 1M comprising the treatment aluminium, magnesium, or their alloys, against corrosion, comprising the treatment of the said articles in a bath containing carbonate of soda and a mixture of alkali sul- 5 pho-molybdate and alkali phospho chromatei 3. Process for protecting articles "made of aluminium, magnesium, or their alloys, against corrosion, comprising the treatment 0 the said'articles in a bath containing carbonate of soda and a mixture composed of 1 part of alkali sulpho-molybdate and 5 parts of alkali phospho-chromate. r 4. Product servin to reduce a protecting layer on articles 111 e o aluminium, magnesium or their alloys, comprising a carbonate of alkali metal and a salt formed by an alkali metal and by one of the following metals; I vanadium, molybdenum, tungsten, titanium,
uranium, niobium, manganese and chromium.
5. .Process for protecting articles made of aluminium, magnesium, or their alloys, comprising the treatmentof the said articles in. a
. ,ath, containing carbonate of soda and an alkali salt of, a metal capable of givin atleast two oxides, such as vanadium, moly denum, tungsten, titanium, uranium, niobium, manganese and chromium.
In testimony whereof I have hereunto so aflixed my signature.
CHARLES BOULANGER.
US401384A 1928-11-10 1929-10-21 Process and product for protecting aluminium, magnesium and their alloys against corrosion Expired - Lifetime US1811298A (en)

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FR679011T 1928-11-10

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BE (1) BE364507A (en)
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GB (1) GB342256A (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2458073A (en) * 1944-01-06 1949-01-04 Parker Appliance Co Coating magnesium and magnesium alloys
DE910372C (en) * 1948-10-02 1954-05-03 Hoechst Ag Process for the production of surface layers on metals
US2981647A (en) * 1958-09-04 1961-04-25 Bell Telephone Labor Inc Fabrication of electrolytic capacitor
US3272665A (en) * 1963-04-24 1966-09-13 Reynolds Metals Co Molybdate coatings on aluminum and aluminum base alloys
US3380858A (en) * 1964-11-10 1968-04-30 Hooker Chemical Corp Chromate coating composition for aluminum and process
DE1187101B (en) * 1962-09-01 1975-03-13 Metallgesellschaft, Aktiengesellschaft, Frankfurt/M Method and means for applying phosphate layers to metal surfaces
US4711667A (en) * 1986-08-29 1987-12-08 Sanchem, Inc. Corrosion resistant aluminum coating
US4895608A (en) * 1988-04-29 1990-01-23 Sanchem, Inc. Corrosion resistant aluminum coating composition
US5219617A (en) * 1989-09-19 1993-06-15 Michigan Chrome And Chemical Company Corrosion resistant coated articles and process for making same
US5707465A (en) * 1996-10-24 1998-01-13 Sanchem, Inc. Low temperature corrosion resistant aluminum and aluminum coating composition
CN107419257A (en) * 2017-07-04 2017-12-01 安徽腾龙泵阀制造有限公司 A kind of surface passivating treatment technique of galvanized steel plain sheet

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE443063A (en) * 1940-08-03 1941-11-29
US2723952A (en) * 1952-11-03 1955-11-15 Harry A Evangelides Method of electrolytically coating magnesium and electrolyte therefor
US3658662A (en) * 1969-01-21 1972-04-25 Durolith Corp Corrosion resistant metallic plates particularly useful as support members for photo-lithographic plates and the like
GB8710011D0 (en) * 1987-04-28 1987-06-03 Bnf Metals Tech Centre Treatment of condenser tubes
AU2002363057A1 (en) 2001-08-03 2003-05-06 Elisha Holding Llc An electrolytic and electroless process for treating metallic surfaces and products formed thereby

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2458073A (en) * 1944-01-06 1949-01-04 Parker Appliance Co Coating magnesium and magnesium alloys
DE910372C (en) * 1948-10-02 1954-05-03 Hoechst Ag Process for the production of surface layers on metals
US2981647A (en) * 1958-09-04 1961-04-25 Bell Telephone Labor Inc Fabrication of electrolytic capacitor
DE1187101B (en) * 1962-09-01 1975-03-13 Metallgesellschaft, Aktiengesellschaft, Frankfurt/M Method and means for applying phosphate layers to metal surfaces
US3272665A (en) * 1963-04-24 1966-09-13 Reynolds Metals Co Molybdate coatings on aluminum and aluminum base alloys
US3380858A (en) * 1964-11-10 1968-04-30 Hooker Chemical Corp Chromate coating composition for aluminum and process
US4711667A (en) * 1986-08-29 1987-12-08 Sanchem, Inc. Corrosion resistant aluminum coating
US4895608A (en) * 1988-04-29 1990-01-23 Sanchem, Inc. Corrosion resistant aluminum coating composition
US5219617A (en) * 1989-09-19 1993-06-15 Michigan Chrome And Chemical Company Corrosion resistant coated articles and process for making same
US5492766A (en) * 1989-09-19 1996-02-20 Michigan Chrome And Chemical Company Corrosion resistant coated articles and process for making same
US5707465A (en) * 1996-10-24 1998-01-13 Sanchem, Inc. Low temperature corrosion resistant aluminum and aluminum coating composition
CN107419257A (en) * 2017-07-04 2017-12-01 安徽腾龙泵阀制造有限公司 A kind of surface passivating treatment technique of galvanized steel plain sheet

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GB342256A (en) 1931-01-26
FR679011A (en) 1930-04-08
BE364507A (en)

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