FR2018697A1 - Roller and wedge die compression of laminated plastic - film followed by cold forming - Google Patents

Roller and wedge die compression of laminated plastic - film followed by cold forming

Info

Publication number
FR2018697A1
FR2018697A1 FR6932451A FR6932451A FR2018697A1 FR 2018697 A1 FR2018697 A1 FR 2018697A1 FR 6932451 A FR6932451 A FR 6932451A FR 6932451 A FR6932451 A FR 6932451A FR 2018697 A1 FR2018697 A1 FR 2018697A1
Authority
FR
France
Prior art keywords
mould
sheet
pref
blank
cold forming
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.)
Withdrawn
Application number
FR6932451A
Other languages
French (fr)
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.)
Uniroyal Inc
Original Assignee
Uniroyal 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 Uniroyal Inc filed Critical Uniroyal Inc
Publication of FR2018697A1 publication Critical patent/FR2018697A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
    • B29C67/0029—Cold deforming of thermoplastics material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/08—Deep drawing or matched-mould forming, i.e. using mechanical means only
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
    • B29C55/02—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
    • B29C55/18—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets by squeezing between surfaces, e.g. rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
    • B29C55/30—Drawing through a die

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Abstract

Cold forming sheet or sheets of thermoplastic material at temperatures below its softening point, pref. at ambient temp. by compressing the slab to a thickness suitable for driving into a convergent wedge-shaped cavity which pref. diverges in width sufficiently to accommodate the material displaced by further compression. Subsequently the sheet material may be supported over a mould cavity with the peripheral sheet covered by a plunger guide block separated from the mould level by spacers at least as thick as the blank sheet. A plunger passing through the guide block deforms the centre of the blank into the mould cavity, drawing additional material as necessary from between the mould and guide blocks. Suitable for forming laminate sheet materials with biaxial, multiaxial or pref. uniaxial overlay pattern, esp. where the blank was initially roller compressed (by about 50%) in one direction and subsequently forced into the mould normal to the rolling direction. The mouldings can be rapidly formed and immediately ejected and usually have improved stress crack and impact resistance compared with hot moulded components.
FR6932451A 1968-09-23 1969-09-23 Roller and wedge die compression of laminated plastic - film followed by cold forming Withdrawn FR2018697A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US76156568A 1968-09-23 1968-09-23
US85763569A 1969-09-09 1969-09-09

Publications (1)

Publication Number Publication Date
FR2018697A1 true FR2018697A1 (en) 1970-06-26

Family

ID=27117008

Family Applications (1)

Application Number Title Priority Date Filing Date
FR6932451A Withdrawn FR2018697A1 (en) 1968-09-23 1969-09-23 Roller and wedge die compression of laminated plastic - film followed by cold forming

Country Status (6)

Country Link
BE (1) BE739184A (en)
CH (1) CH515105A (en)
DE (1) DE1947903A1 (en)
FR (1) FR2018697A1 (en)
LU (1) LU59481A1 (en)
NL (1) NL6914379A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010070027A1 (en) * 2008-12-18 2010-06-24 Dsm Ip Assets B.V. Three-dimensionally shaped articles and process for producing the same

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3133897A1 (en) * 1981-08-27 1983-03-10 Deutsche Solvay-Werke Gmbh, 5650 Solingen "METHOD AND DEVICE FOR THE PRODUCTION OF PLASTIC PANELS, FILMS, COATINGS, STRIPS, RODS, MOLDED PARTS, OBJECTS OR PROFILES OF HIGH MECHANICAL STRENGTH FROM THERMOPLASTICS"
EP0238076B1 (en) * 1986-03-18 1992-10-21 Asahi Kasei Kogyo Kabushiki Kaisha A shaped article of an oriented tetrafluoroethylene polymer
EP0287667A4 (en) * 1986-09-30 1989-06-21 Nippon Steel Corp Stretch-reinforced polymer material sheet and method of producing the same.
US20090263585A1 (en) * 2006-05-02 2009-10-22 Basf Se Cold-forming of polymers comprising styrene
DE102010053636A1 (en) * 2010-12-07 2012-06-14 CGB Carbon Großbauteile GmbH Processing of a fiber composite semifinished product

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010070027A1 (en) * 2008-12-18 2010-06-24 Dsm Ip Assets B.V. Three-dimensionally shaped articles and process for producing the same
US9669568B2 (en) 2008-12-18 2017-06-06 Dsm Ip Assets B.V. Three-dimensionally shaped articles and process for producing the same

Also Published As

Publication number Publication date
CH515105A (en) 1971-11-15
BE739184A (en) 1970-03-23
LU59481A1 (en) 1970-09-23
DE1947903A1 (en) 1970-04-02
NL6914379A (en) 1970-03-25

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Legal Events

Date Code Title Description
ST Notification of lapse