JPS5686725A - Preparation of cylindrical body - Google Patents
Preparation of cylindrical bodyInfo
- Publication number
- JPS5686725A JPS5686725A JP16424879A JP16424879A JPS5686725A JP S5686725 A JPS5686725 A JP S5686725A JP 16424879 A JP16424879 A JP 16424879A JP 16424879 A JP16424879 A JP 16424879A JP S5686725 A JPS5686725 A JP S5686725A
- Authority
- JP
- Japan
- Prior art keywords
- cylindrical body
- molding die
- resin layer
- gas flow
- diameter
- 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.)
- Granted
Links
Landscapes
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
- Making Paper Articles (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
PURPOSE:To obtain a cylindrical body of a good quality useful for a wave guide, etc. by a method wherein a laminated tape installed with a thermoplastic synthetic resin layer on a plane of a metallic tape is formed into the cylindrical body by using a molding die having a gas flow hole for cooling, and after a protective coating is installed on the cylindrical body, the cylindrical body is cooled. CONSTITUTION:A molding die 46 having both end parts 41, 42 of an outer diameter almost as long as the inner diameter of the cylindrical body to be prepared, an intermediate part 43 having a diameter shorter than the inner diameter of the cylindrical body, and a gas flow hole 44 at the central part of the axial direction is prepared. Next thereto, a laminated tape installed with a thermoplastic synthetic resin layer on a plane of a metallic tape is formed into a cylindrical body so as to enclose the surface of a large diameter 41 part at the front end of the molding die 46, by using a molding device 4. Next thereto, a resin layer of the duplicated part of the laminated tape is heated by means of a welding device 6 to be welded, it is applied with an external pressure at a large diameter part 42 at the rear end of the molding die 46 and it is welded thereto, and further, it is cooled by passing the air into the gas flow hole 44, and along with this, the protective coating is pushed forward and the air is made to flow into the coated cylindrical body inside to prevent the shape of the cylindrical body from being made flat.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16424879A JPS5686725A (en) | 1979-12-17 | 1979-12-17 | Preparation of cylindrical body |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16424879A JPS5686725A (en) | 1979-12-17 | 1979-12-17 | Preparation of cylindrical body |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5686725A true JPS5686725A (en) | 1981-07-14 |
JPS6336935B2 JPS6336935B2 (en) | 1988-07-22 |
Family
ID=15789483
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16424879A Granted JPS5686725A (en) | 1979-12-17 | 1979-12-17 | Preparation of cylindrical body |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5686725A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62135337A (en) * | 1985-12-09 | 1987-06-18 | Hitachi Cable Ltd | Method for molding long sized pipe |
-
1979
- 1979-12-17 JP JP16424879A patent/JPS5686725A/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62135337A (en) * | 1985-12-09 | 1987-06-18 | Hitachi Cable Ltd | Method for molding long sized pipe |
JPH0464294B2 (en) * | 1985-12-09 | 1992-10-14 | Hitachi Cable |
Also Published As
Publication number | Publication date |
---|---|
JPS6336935B2 (en) | 1988-07-22 |
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