GB502278A - Improvements in methods of treating the surfaces of ice trays of aluminium or aluminium alloy - Google Patents

Improvements in methods of treating the surfaces of ice trays of aluminium or aluminium alloy

Info

Publication number
GB502278A
GB502278A GB1304/38A GB130438A GB502278A GB 502278 A GB502278 A GB 502278A GB 1304/38 A GB1304/38 A GB 1304/38A GB 130438 A GB130438 A GB 130438A GB 502278 A GB502278 A GB 502278A
Authority
GB
United Kingdom
Prior art keywords
aluminium
wax
ice
jan
treatment
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
Application number
GB1304/38A
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.)
Motors Liquidation Co
Original Assignee
Motors Liquidation Co
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 Motors Liquidation Co filed Critical Motors Liquidation Co
Publication of GB502278A publication Critical patent/GB502278A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C25D11/04—Anodisation of aluminium or alloys based thereon
    • C25D11/18—After-treatment, e.g. pore-sealing

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Cookers (AREA)
  • Table Devices Or Equipment (AREA)

Abstract

502,278. Electrolytic surface treatment of aluminium. GENERAL MOTORS CORPORATION. Jan. 14, 1938, No. 1304. Convention date, Jan. 16, 1937. [Class 41] [Also in Group XIII] Grids or container pans of ice-making trays having a surface of aluminium or aluminium alloy are treated anodically to form a highly activated coating of aluminium oxide and are then immersed in molten wax in order to facilitate the separation of ice therefrom. The waxing treatment is preferably carried out shortly after anodizing without the intervention of a hot-water sealing treatment. A suitable wax consists of 50 per cent paraffin wax and 50 per cent carnauba wax.
GB1304/38A 1937-01-16 1938-01-14 Improvements in methods of treating the surfaces of ice trays of aluminium or aluminium alloy Expired GB502278A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US502278XA 1937-01-16 1937-01-16

Publications (1)

Publication Number Publication Date
GB502278A true GB502278A (en) 1939-03-15

Family

ID=21964064

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1304/38A Expired GB502278A (en) 1937-01-16 1938-01-14 Improvements in methods of treating the surfaces of ice trays of aluminium or aluminium alloy

Country Status (1)

Country Link
GB (1) GB502278A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2683113A (en) * 1951-01-16 1954-07-06 Gen Motors Corp Method of finishing ice trays

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2683113A (en) * 1951-01-16 1954-07-06 Gen Motors Corp Method of finishing ice trays

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