JPS5678941A - Continuous extrusion molding method of synthetic resin sheet - Google Patents

Continuous extrusion molding method of synthetic resin sheet

Info

Publication number
JPS5678941A
JPS5678941A JP15701079A JP15701079A JPS5678941A JP S5678941 A JPS5678941 A JP S5678941A JP 15701079 A JP15701079 A JP 15701079A JP 15701079 A JP15701079 A JP 15701079A JP S5678941 A JPS5678941 A JP S5678941A
Authority
JP
Japan
Prior art keywords
sheet
synthetic resin
passed
resin sheet
molding method
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
JP15701079A
Other languages
Japanese (ja)
Inventor
Fumiaki Tada
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.)
Hitachi Zosen Corp
Original Assignee
Hitachi Zosen Corp
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 Hitachi Zosen Corp filed Critical Hitachi Zosen Corp
Priority to JP15701079A priority Critical patent/JPS5678941A/en
Publication of JPS5678941A publication Critical patent/JPS5678941A/en
Pending 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
    • B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
    • B29C59/02—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing
    • B29C59/04—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing using rollers or endless belts
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/07—Flat, e.g. panels
    • B29C48/08—Flat, e.g. panels flexible, e.g. films
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0037—Other properties
    • B29K2995/0072—Roughness, e.g. anti-slip

Landscapes

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

Abstract

PURPOSE:To prepare the sheet without undulation and excellent smoothness by a method wherein the sheet obtained by extruding a resin and cooling and solidifying the same by polishing roll to impart a predetermined dimension is heated to a softening point of the resin or more and passed between heated mill rolls. CONSTITUTION:The synthetic resin extruded from a die 12 of an extruder 11 is passed through the polishing rolls 13 and cooled and solidified therebetween to form the sheet 17 imparted with a predetermined dimension. The surface of this sheet 17 is reheated to a temp. of a softening point thereof or more by passing the sheet through a heating apparatus 15 and passed through plural pairs of the mill roll groups 16 to smooth the undulation having a regular frequency and taken by a taking roll 14.
JP15701079A 1979-12-03 1979-12-03 Continuous extrusion molding method of synthetic resin sheet Pending JPS5678941A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15701079A JPS5678941A (en) 1979-12-03 1979-12-03 Continuous extrusion molding method of synthetic resin sheet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15701079A JPS5678941A (en) 1979-12-03 1979-12-03 Continuous extrusion molding method of synthetic resin sheet

Publications (1)

Publication Number Publication Date
JPS5678941A true JPS5678941A (en) 1981-06-29

Family

ID=15640199

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15701079A Pending JPS5678941A (en) 1979-12-03 1979-12-03 Continuous extrusion molding method of synthetic resin sheet

Country Status (1)

Country Link
JP (1) JPS5678941A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04323023A (en) * 1991-04-23 1992-11-12 Nippon Steel Corp Manufacture of transparent polypropylene sheet
WO1994023938A1 (en) * 1993-04-09 1994-10-27 Daikin Industries, Ltd. Fluororesin molded product smoothing method and smoothed molded product
US6146923A (en) * 1993-04-09 2000-11-14 Tadahiro Ohmi Method of smoothing fluorine-containing resin molded article and smoothed molded article

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04323023A (en) * 1991-04-23 1992-11-12 Nippon Steel Corp Manufacture of transparent polypropylene sheet
WO1994023938A1 (en) * 1993-04-09 1994-10-27 Daikin Industries, Ltd. Fluororesin molded product smoothing method and smoothed molded product
US6146923A (en) * 1993-04-09 2000-11-14 Tadahiro Ohmi Method of smoothing fluorine-containing resin molded article and smoothed molded article

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