ES247683A1 - Method for manufacturing hollow articles and articles produced thereby - Google Patents
Method for manufacturing hollow articles and articles produced therebyInfo
- Publication number
- ES247683A1 ES247683A1 ES0247683A ES247683A ES247683A1 ES 247683 A1 ES247683 A1 ES 247683A1 ES 0247683 A ES0247683 A ES 0247683A ES 247683 A ES247683 A ES 247683A ES 247683 A1 ES247683 A1 ES 247683A1
- Authority
- ES
- Spain
- 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
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
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.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US71968858A | 1958-03-06 | 1958-03-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES247683A1 true ES247683A1 (en) | 1959-09-01 |
Family
ID=24890982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES0247683A Expired ES247683A1 (en) | 1958-03-06 | 1959-03-04 | 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) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4002200A (en) * | 1972-12-07 | 1977-01-11 | Dean Products, Inc. | Extended fin heat exchanger panel |
| IT1315116B1 (en) * | 2000-08-04 | 2003-02-03 | C G A Spa | HIGH EFFICIENCY PERFECTED EVAPORATOR FOR REFRIGERATORS AND FREEZERS |
| DE102007055910A1 (en) * | 2007-10-25 | 2009-04-30 | Baumüller Nürnberg GmbH | Cooling jacket, in particular for electrical machines, and production method therefor |
-
1959
- 1959-03-03 GB GB740459A patent/GB905490A/en not_active Expired
- 1959-03-04 ES ES0247683A patent/ES247683A1/en not_active Expired
- 1959-03-06 BE BE576404A patent/BE576404A/en unknown
- 1959-03-06 CH CH7044659A patent/CH372262A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| GB905490A (en) | 1962-09-12 |
| BE576404A (en) | 1959-07-01 |
| CH372262A (en) | 1963-10-15 |
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