IT1233132B - Method to manufacture pipes for heat exchangers and equipment to implement said method - Google Patents
Method to manufacture pipes for heat exchangers and equipment to implement said methodInfo
- Publication number
- IT1233132B IT1233132B IT8909309A IT930989A IT1233132B IT 1233132 B IT1233132 B IT 1233132B IT 8909309 A IT8909309 A IT 8909309A IT 930989 A IT930989 A IT 930989A IT 1233132 B IT1233132 B IT 1233132B
- Authority
- IT
- Italy
- Prior art keywords
- finished product
- implement
- equipment
- heat exchangers
- semi
- Prior art date
Links
- 238000000034 method Methods 0.000 title 2
- 238000004519 manufacturing process Methods 0.000 title 1
- 239000011265 semifinished product Substances 0.000 abstract 3
- 239000000047 product Substances 0.000 abstract 1
Landscapes
- Metal Extraction Processes (AREA)
Abstract
The present invention concerns a tubular, semi-finished product that is both thicker and with a longer diameter than the finished product. Said semi-finished product passes through a hammer mill to be thinned, wherein said semi-finished product is hammered on a fix internal plug with helicoidal shape, said shape being provided with helicoidal grooves due to plastic deformation and obtained on the internal side of said tube.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT8909309A IT1233132B (en) | 1989-01-13 | 1989-01-13 | Method to manufacture pipes for heat exchangers and equipment to implement said method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT8909309A IT1233132B (en) | 1989-01-13 | 1989-01-13 | Method to manufacture pipes for heat exchangers and equipment to implement said method |
Publications (2)
Publication Number | Publication Date |
---|---|
IT8909309A0 IT8909309A0 (en) | 1989-01-13 |
IT1233132B true IT1233132B (en) | 1992-03-14 |
Family
ID=11128224
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT8909309A IT1233132B (en) | 1989-01-13 | 1989-01-13 | Method to manufacture pipes for heat exchangers and equipment to implement said method |
Country Status (1)
Country | Link |
---|---|
IT (1) | IT1233132B (en) |
-
1989
- 1989-01-13 IT IT8909309A patent/IT1233132B/en active
Also Published As
Publication number | Publication date |
---|---|
IT8909309A0 (en) | 1989-01-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
TA | Fee payment date (situation as of event date), data collected since 19931001 |
Effective date: 19940128 |