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 sheet

Info

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
Application number
JP17138580A
Other languages
Japanese (ja)
Inventor
Tadashi Hashimoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Plastics Inc
Original Assignee
Mitsubishi Plastics Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Plastics Inc filed Critical Mitsubishi Plastics Inc
Priority to JP17138580A priority Critical patent/JPS5795407A/en
Publication of JPS5795407A publication Critical patent/JPS5795407A/en
Pending legal-status Critical Current

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
JP17138580A 1980-12-04 1980-12-04 Production of crucible-shaped vessel provided with thick flange from plastic sheet Pending JPS5795407A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5138345A (en) * 1974-09-30 1976-03-31 Mitsubishi Plastics Ind GOSEIJUSHISEIKEIHINNO SEIKEIHOHOOYOBI SOCHI

Patent Citations (1)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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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