GB905490A - Method for manufacturing hollow articles and articles produced thereby - Google Patents

Method for manufacturing hollow articles and articles produced thereby

Info

Publication number
GB905490A
GB905490A GB740459A GB740459A GB905490A GB 905490 A GB905490 A GB 905490A GB 740459 A GB740459 A GB 740459A GB 740459 A GB740459 A GB 740459A GB 905490 A GB905490 A GB 905490A
Authority
GB
United Kingdom
Prior art keywords
sheets
minutes
water
rinsing
bath
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
GB740459A
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.)
Reynolds Metals Co
Original Assignee
Reynolds Metals 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 Reynolds Metals Co filed Critical Reynolds Metals Co
Publication of GB905490A publication Critical patent/GB905490A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00—Making other particular articles
    • B21D53/02—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers
    • B21D53/04—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers of sheet metal
    • B21D53/045—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers of sheet metal by inflating partially united plates

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)

Abstract

Aluminium sheets are cleaned in a soapy etchant alkaline cleaner including tetrasodium pyrophosphate, sodium carbonate and trisodium phosphate with or without inhibitors such as sodium metasilicate or sodium disilicate, and a wetting agent. Cleaning is effected at 120 DEG F. for five minutes using an aqueous solution having a concentration of about 4 to 6 ozs. of the alkaline preparation per gallon of water. This is followed by a rinse in cool, clean water for one minute at 70 DEG F. In a further cleaning step the sheets are subjected to a highly alkaline etch cleaner containing sodium hydroxide or sodium carbonate and a wetting agent at a bath temperature of 140 DEG F. to 150 DEG F. followed by rinsing at 70 DEG F. The sheets are next immersed in a chromic-sulphuric salt bath for about 3 to 5 minutes for deoxidizing using a bath temperature of 70 DEG F. and a concentration of acid salt of about 14 to 16 ozs. per gallon of water. After rinsing at 70 DEG F. for one minute, the sheets are transferred to a hot de-ionized water rinsing bath maintained at a temperature between 180 DEG F. and 212 DEG F. and then dried in air for about 5 minutes.
GB740459A 1958-03-06 1959-03-03 Method for manufacturing hollow articles and articles produced thereby Expired GB905490A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US71968858A 1958-03-06 1958-03-06

Publications (1)

Publication Number Publication Date
GB905490A true GB905490A (en) 1962-09-12

Family

ID=24890982

Family Applications (1)

Application Number Title Priority Date Filing Date
GB740459A Expired GB905490A (en) 1958-03-06 1959-03-03 Method for manufacturing hollow articles and articles produced thereby

Country Status (4)

Country Link
BE (1) BE576404A (en)
CH (1) CH372262A (en)
ES (1) ES247683A1 (en)
GB (1) GB905490A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4002200A (en) * 1972-12-07 1977-01-11 Dean Products, Inc. Extended fin heat exchanger panel
EP1178268A2 (en) * 2000-08-04 2002-02-06 C.G.A. COMPAGNIA GENERALE ALLUMINIO S.p.A. High-efficiency improved evaporator for refrigerators and deep-freezers
WO2009053496A2 (en) * 2007-10-25 2009-04-30 Baumüller Nürnberg GmbH Cooling jacket, especially for electrical machines and method for the manufacture thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4002200A (en) * 1972-12-07 1977-01-11 Dean Products, Inc. Extended fin heat exchanger panel
EP1178268A2 (en) * 2000-08-04 2002-02-06 C.G.A. COMPAGNIA GENERALE ALLUMINIO S.p.A. High-efficiency improved evaporator for refrigerators and deep-freezers
EP1178268A3 (en) * 2000-08-04 2002-10-02 C.G.A. COMPAGNIA GENERALE ALLUMINIO S.p.A. High-efficiency improved evaporator for refrigerators and deep-freezers
WO2009053496A2 (en) * 2007-10-25 2009-04-30 Baumüller Nürnberg GmbH Cooling jacket, especially for electrical machines and method for the manufacture thereof
WO2009053496A3 (en) * 2007-10-25 2009-07-30 Baumueller Nuernberg Gmbh Cooling jacket, especially for electrical machines and method for the manufacture thereof

Also Published As

Publication number Publication date
CH372262A (en) 1963-10-15
BE576404A (en) 1959-07-01
ES247683A1 (en) 1959-09-01

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