JPS568221A - Heat extrusion method for formed article - Google Patents
Heat extrusion method for formed articleInfo
- Publication number
- JPS568221A JPS568221A JP8259679A JP8259679A JPS568221A JP S568221 A JPS568221 A JP S568221A JP 8259679 A JP8259679 A JP 8259679A JP 8259679 A JP8259679 A JP 8259679A JP S568221 A JPS568221 A JP S568221A
- Authority
- JP
- Japan
- Prior art keywords
- mold
- formed article
- extrusion method
- conduit
- rotated
- 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
- Moulding By Coating Moulds (AREA)
- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
PURPOSE: To prevent a formed article from being damaged when the hollow formed article is extruded from a mold by a method wherein the mold is rotated and, being supplied with a heating medium, is heated evenly in the peripheral direction and thus expanded.
CONSTITUTION: A mold 12 is rotated by a driving device 22. After that, a heating medium, such as raw steam, is introduced near to the outer-peripheral surface of the mold 12 through a conduit 38 and applied on to the whole peripheral surface of the mold 12 from many jet orifices provided in the conduit 38. The mold 12 is thus heated evenly in the peripheral direction and the continuous slackening is produced between the mold 12 and a formed article 14, thereby the occurrence of damage on the formed article 14 at extrusion from the mold 12 is prevented.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8259679A JPS568221A (en) | 1979-07-02 | 1979-07-02 | Heat extrusion method for formed article |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8259679A JPS568221A (en) | 1979-07-02 | 1979-07-02 | Heat extrusion method for formed article |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS568221A true JPS568221A (en) | 1981-01-28 |
JPS6261405B2 JPS6261405B2 (en) | 1987-12-21 |
Family
ID=13778860
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8259679A Granted JPS568221A (en) | 1979-07-02 | 1979-07-02 | Heat extrusion method for formed article |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS568221A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62268797A (en) * | 1986-05-16 | 1987-11-21 | Eagle Ind Co Ltd | Lubrication system for stern tube device |
JPH0286900U (en) * | 1988-12-23 | 1990-07-10 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4952528A (en) * | 1972-09-20 | 1974-05-22 | ||
JPS4962528A (en) * | 1972-10-19 | 1974-06-18 |
-
1979
- 1979-07-02 JP JP8259679A patent/JPS568221A/en active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4952528A (en) * | 1972-09-20 | 1974-05-22 | ||
JPS4962528A (en) * | 1972-10-19 | 1974-06-18 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62268797A (en) * | 1986-05-16 | 1987-11-21 | Eagle Ind Co Ltd | Lubrication system for stern tube device |
JPH0286900U (en) * | 1988-12-23 | 1990-07-10 |
Also Published As
Publication number | Publication date |
---|---|
JPS6261405B2 (en) | 1987-12-21 |
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