JPS5795407A - Production of crucible-shaped vessel provided with thick flange from plastic sheet - Google Patents
Production of crucible-shaped vessel provided with thick flange from plastic sheetInfo
- Publication number
- JPS5795407A JPS5795407A JP17138580A JP17138580A JPS5795407A JP S5795407 A JPS5795407 A JP S5795407A JP 17138580 A JP17138580 A JP 17138580A JP 17138580 A JP17138580 A JP 17138580A JP S5795407 A JPS5795407 A JP S5795407A
- Authority
- JP
- Japan
- Prior art keywords
- sheet
- opening
- die
- vessel provided
- flange
- 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
- Moulds For Moulding Plastics Or The Like (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
Abstract
PURPOSE: To obtain a vessel provided with a thickened flange while drawing a sheet into a sufficiently thin state inside a forming die, by vacuum or compression-forming the sheet in a female die having the interior expanded larger than its opening.
CONSTITUTION: A plastic sheet 2 is stretched on the opening 11 of a female die 1 having the interior expanded larger than the opening 11, by a clamp or the like. The sheet 2 is heated and softened by a heater 3 or the like, and the sheet 2 at the periphery of the die opening is brought into contact with the die. Thereafter, the cooled sheet is drawn into a sufficiently thin state in the die by vacuum or compressed air. After formed, the sheet is punched by a trimming edge or the like. Thus, a vessel provided with a thick flange is obtained. When the body part of the sheet is expanded 1.5W2 times as much as the diameter of its opening part with use of the female die having a nearly cylindrical shape including the narrowed opening as aforementioned, a material sheet having a thickness 1.5W2 times as much as that of a conventional vessel having the same wall thickness and the same height, can be used. Consequently, the vessel provided with the flange having a larger thickness can be obtained.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17138580A JPS5795407A (en) | 1980-12-04 | 1980-12-04 | Production of crucible-shaped vessel provided with thick flange from plastic sheet |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17138580A JPS5795407A (en) | 1980-12-04 | 1980-12-04 | Production of crucible-shaped vessel provided with thick flange from plastic sheet |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5795407A true JPS5795407A (en) | 1982-06-14 |
Family
ID=15922185
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17138580A Pending JPS5795407A (en) | 1980-12-04 | 1980-12-04 | Production of crucible-shaped vessel provided with thick flange from plastic sheet |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5795407A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5545370A (en) * | 1994-04-11 | 1996-08-13 | Plastofilm Industries, Inc. | Process for producing thermoformed article employing selective cooling |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5138345A (en) * | 1974-09-30 | 1976-03-31 | Mitsubishi Plastics Ind | GOSEIJUSHISEIKEIHINNO SEIKEIHOHOOYOBI SOCHI |
-
1980
- 1980-12-04 JP JP17138580A patent/JPS5795407A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5138345A (en) * | 1974-09-30 | 1976-03-31 | Mitsubishi Plastics Ind | GOSEIJUSHISEIKEIHINNO SEIKEIHOHOOYOBI SOCHI |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5545370A (en) * | 1994-04-11 | 1996-08-13 | Plastofilm Industries, Inc. | Process for producing thermoformed article employing selective cooling |
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