JPS5525326A - Manufacturing method and device of vessel - Google Patents
Manufacturing method and device of vesselInfo
- Publication number
- JPS5525326A JPS5525326A JP9740878A JP9740878A JPS5525326A JP S5525326 A JPS5525326 A JP S5525326A JP 9740878 A JP9740878 A JP 9740878A JP 9740878 A JP9740878 A JP 9740878A JP S5525326 A JPS5525326 A JP S5525326A
- Authority
- JP
- Japan
- Prior art keywords
- plug
- sheet
- mold
- temperature
- vessel
- 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.)
- Pending
Links
Landscapes
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
Abstract
PURPOSE: To manufacture a vessel without pin-holes by forming a thin sheet of thermoplastic resin, clamped on the upper edge of a female mold for a vacuum forming device, pushing into the mold with a metallic assistant plug.
CONSTITUTION: A thin sheet 11 of thermoplastic resin, heated to a proper temperature near the melting point thereof, is clamped on the upper edge of a female mold of a vacuum forming device, and is pushed into a female mold 10 to a predetermined position with a metallic assistant plug 13, thereafter, is formed into a vessel by evacuating a space between the mold 10 and the sheet 11 or by imposing a positive pressure on the upper surface of the sheet 11. The surface temperature of the bottom portion for the assistant plug 13 is kept at a temperature within a zone of elastic rubberic state for the sheet 11 by controlling the temperature by means of a electric heater 17 inserted in the central cavity of the plug 13 while the upper and outer portion of the trunk for the plug 13 is covered by a soft heat-insulating member 16.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9740878A JPS5525326A (en) | 1978-08-11 | 1978-08-11 | Manufacturing method and device of vessel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9740878A JPS5525326A (en) | 1978-08-11 | 1978-08-11 | Manufacturing method and device of vessel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5525326A true JPS5525326A (en) | 1980-02-23 |
Family
ID=14191663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9740878A Pending JPS5525326A (en) | 1978-08-11 | 1978-08-11 | Manufacturing method and device of vessel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5525326A (en) |
-
1978
- 1978-08-11 JP JP9740878A patent/JPS5525326A/en active Pending
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