IT1192406B - Sewing machine for sheet pads prodn. - Google Patents
Sewing machine for sheet pads prodn.Info
- Publication number
- IT1192406B IT1192406B IT09383/82A IT938382A IT1192406B IT 1192406 B IT1192406 B IT 1192406B IT 09383/82 A IT09383/82 A IT 09383/82A IT 938382 A IT938382 A IT 938382A IT 1192406 B IT1192406 B IT 1192406B
- Authority
- IT
- Italy
- Prior art keywords
- pipe
- ptfe
- opening
- prodn
- sewing machine
- Prior art date
Links
- 238000009958 sewing Methods 0.000 title 1
- 239000004810 polytetrafluoroethylene Substances 0.000 abstract 6
- 229920001343 polytetrafluoroethylene Polymers 0.000 abstract 6
Landscapes
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
The method is esp. intended for lining diaphragm valve bodies. A straight PTFE pipe is inserted into the component so that it extends beyond each end of the component. A warm support mandrel is then introduced into the PTFE pipe. The ends of the PTFE pipe (32) are held in press and axially compressed by force of 0.1-6 KN. The PTFE pipe is then drilled at the opening (5) and a drawing mandrel is inserted into the pipe (3). The pipe (3) is heated to 180-400 deg.C in the vicinity of the opening. The drawing mandrel is pulled out through the opening using a drawing tool. Finally the ends (32) of the PTFE pipe (3) are trimmed and/or a pipe extension (4) with PTFE lining is added
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT09383/82A IT1192406B (en) | 1982-04-22 | 1982-04-22 | Sewing machine for sheet pads prodn. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT09383/82A IT1192406B (en) | 1982-04-22 | 1982-04-22 | Sewing machine for sheet pads prodn. |
Publications (2)
Publication Number | Publication Date |
---|---|
IT8209383A0 IT8209383A0 (en) | 1982-04-22 |
IT1192406B true IT1192406B (en) | 1988-04-13 |
Family
ID=11129305
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT09383/82A IT1192406B (en) | 1982-04-22 | 1982-04-22 | Sewing machine for sheet pads prodn. |
Country Status (1)
Country | Link |
---|---|
IT (1) | IT1192406B (en) |
-
1982
- 1982-04-22 IT IT09383/82A patent/IT1192406B/en active
Also Published As
Publication number | Publication date |
---|---|
IT8209383A0 (en) | 1982-04-22 |
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