US3772162A - Method of galvanically treating metallic sectional bodies - Google Patents

Method of galvanically treating metallic sectional bodies Download PDF

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Publication number
US3772162A
US3772162A US00203577A US3772162DA US3772162A US 3772162 A US3772162 A US 3772162A US 00203577 A US00203577 A US 00203577A US 3772162D A US3772162D A US 3772162DA US 3772162 A US3772162 A US 3772162A
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Prior art keywords
sections
rails
metallic
rail
galvanically
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Expired - Lifetime
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US00203577A
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English (en)
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H Grune
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    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
    • C25D5/02—Electroplating of selected surface areas
    • 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
    • C25D11/02—Anodisation
    • C25D11/022—Anodisation on selected surface areas

Definitions

  • ABSTRACT Multipart sectional bodies of metallic component sections, e.g., hollow sections for window and door frames formed of extruded aluminum sections, are provided with different surface layers, e.g., layers of different color, on the several sections in galvanic treatments by electrically insulating the sections from each other and galvanically treating the body in different baths while connecting only one of the component sections to a source of electric current while immersed in each bath.
  • the present invention relates to a method of galvanically treating sectional bodies formed of metallic part sections. This invention further relates to sectional bodies obtained by this method.
  • the sectional bodies obtained according to this method are characterized by a different surface of the component sections forming the sectional body.
  • FIG. 2 shows a galvanic bath for the treatment of a hollow section according to FIG. 1 in application of the present method
  • FIGS. 3 and 4 show further embodiments of sectional bodies.
  • the surface of the lower component section 101 is under an anodic potential and undergoes anodic oxidation also termed anodization while the surface of the upper component section 100, which is electrically insulated relative to the current source 137, is not influenced. It may thus be ensured without the necessity of masking that, as shown in FIG. 1, only the outside of the lower aluminium component section 101 is provided with a surface layer which possesses a certain colour depending on the type of the galvanic bath 140 used.
  • galvanic oxidation according to FIG. 2 may also be performed for certain purposes by the use of an alternating-current source.
  • the nonmetallic separators 102 and 103 are not attacked by the baths during galvanic treatment if a suitable elastic plastic material is em ployed.
  • the hollow sections must be adequately cleaned after conclusion of each galvanic treatment in order to remove the bath liquid.
  • the aftertreatment of the anodized surface commonly referred to as scaling is of advantage, by way of example by means of steam sealing in a steam atmosphere or by other suitable methods.
  • the present method is naturally applicable not only to hollow sections of the design shown in FIG. 1 but to all sectional bodies formed of metallic component sections and nonmetallic connecting members arranged between them so that no metallic contact is established between these component sections.
  • FIG. 3 An embodiment of a further sectional body of this type is shown in cross-section in FIG. 3.
  • the upper metallic component section 141 is here connected with the lower metallic component section 142 by means of a sectional bar 143 formed of a non-metallic material.
  • Anchoring is effected by the attachment grooves here shown as having a triangular section which are provided on the opposite end faces 144 and 145 of the two component sections 141 and, respectively, 142.
  • the further embodiment of a sectional body shown in cross-section in FIG. 4 possesses an upper and a lower metal plate 146 and 147 with a connecting member 148 extending around the periphery of the two metal plates, here by way of example a plastic strip provided with grooves to accommodate the bent edges of the plates.
  • the space 149 between the metal plates 146 and 147 is filled with a nonmetallic material, by way of example plastic foam, glass foam or the like.
  • Sectional bodies of this type are suitable e.g., as curtain walls for buildings.
  • the present method may naturally be used for such sectional bodies of which the metallic component sections are formed of different metals.
  • it may be of advantage with a hollow section of the design shown in FIG. 1 to form the lower component section 101 of iron or steel while the upper component section 100 consists of aluminium.
  • the component section 100 formed of aluminium may then be anodically oxidized in a second galvanic treatment as described above.
  • the present method is not limited to the anodic oxidation of component sections made of aluminium but enables any desired galvanic treatment to be given to the individual component sections, which are electrically insulated relative to one another, of a hollow section.
  • the nonmetallic connecting members, intermediate layers and materials must be electrical insulators so that no metallic contact is established between the component sections.
  • the rails comprise at least one rail made of ferrous metal and this one rail is treated galvanically.
  • the rails comprise at least one rail made of ferrous metal and this one rail is treated galvanically and provided with a rust-protection surface layer of copper or chromium.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electroplating Methods And Accessories (AREA)
  • Electroplating And Plating Baths Therefor (AREA)
US00203577A 1970-12-09 1971-12-01 Method of galvanically treating metallic sectional bodies Expired - Lifetime US3772162A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1821770A CH542935A (de) 1970-12-09 1970-12-09 Verfahren zur galvanischen Behandlung von metallischen Profilkörpern und Profilkörper, behandelt nach dem Verfahren

Publications (1)

Publication Number Publication Date
US3772162A true US3772162A (en) 1973-11-13

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US00203577A Expired - Lifetime US3772162A (en) 1970-12-09 1971-12-01 Method of galvanically treating metallic sectional bodies

Country Status (8)

Country Link
US (1) US3772162A (de)
AT (1) AT309179B (de)
CA (1) CA954470A (de)
CH (1) CH542935A (de)
DE (1) DE2160961A1 (de)
GB (1) GB1381484A (de)
NL (1) NL7116814A (de)
SE (1) SE370416B (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3431636A3 (de) * 2017-07-21 2019-03-06 United Technologies Corporation Anodisierung einer gebondeten anordnung
DE102016208184B4 (de) 2015-05-14 2023-04-27 Lacks Enterprises, Inc. Verfahren zum Erzeugen eines Teils mit mehreren dekorativen Oberflächen
US11639552B2 (en) 2015-05-14 2023-05-02 Lacks Enterprises, Inc. Method for creating multiple electrical current pathways on a work piece
WO2024094402A1 (en) * 2022-11-04 2024-05-10 Ams-Osram International Gmbh Plating method and device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL2004669C2 (nl) * 2010-05-04 2011-11-08 R A Wuts Beheer B V Werkwijze voor het anodiseren en kleuren van een object, alsmede object zodanig geanodiseerd.

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3324015A (en) * 1963-12-03 1967-06-06 Hughes Aircraft Co Electroplating process for semiconductor devices

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3324015A (en) * 1963-12-03 1967-06-06 Hughes Aircraft Co Electroplating process for semiconductor devices

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016208184B4 (de) 2015-05-14 2023-04-27 Lacks Enterprises, Inc. Verfahren zum Erzeugen eines Teils mit mehreren dekorativen Oberflächen
US11639552B2 (en) 2015-05-14 2023-05-02 Lacks Enterprises, Inc. Method for creating multiple electrical current pathways on a work piece
EP3431636A3 (de) * 2017-07-21 2019-03-06 United Technologies Corporation Anodisierung einer gebondeten anordnung
US10458035B2 (en) 2017-07-21 2019-10-29 United Technologies Corporation Anodization of bonded assembly
WO2024094402A1 (en) * 2022-11-04 2024-05-10 Ams-Osram International Gmbh Plating method and device

Also Published As

Publication number Publication date
CH542935A (de) 1973-10-15
CA954470A (en) 1974-09-10
DE2160961A1 (de) 1972-06-15
NL7116814A (de) 1972-06-13
GB1381484A (en) 1975-01-22
SE370416B (de) 1974-10-14
AT309179B (de) 1973-08-10

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