JPS5749515A - Manufacture of pellet - Google Patents

Manufacture of pellet

Info

Publication number
JPS5749515A
JPS5749515A JP55124812A JP12481280A JPS5749515A JP S5749515 A JPS5749515 A JP S5749515A JP 55124812 A JP55124812 A JP 55124812A JP 12481280 A JP12481280 A JP 12481280A JP S5749515 A JPS5749515 A JP S5749515A
Authority
JP
Japan
Prior art keywords
strands
cutting
reheating
extruder
temperature
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
JP55124812A
Other languages
Japanese (ja)
Inventor
Toru Maeda
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 Rayon Co Ltd
Original Assignee
Mitsubishi Rayon Co Ltd
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 Rayon Co Ltd filed Critical Mitsubishi Rayon Co Ltd
Priority to JP55124812A priority Critical patent/JPS5749515A/en
Publication of JPS5749515A publication Critical patent/JPS5749515A/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
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B9/00—Making granules
    • B29B9/02—Making granules by dividing preformed material
    • B29B9/06—Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
    • 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
    • B29C2793/00—Shaping techniques involving a cutting or machining operation
    • B29C2793/0027—Cutting off
    • 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
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0022—Combinations of extrusion moulding with other shaping operations combined with cutting
    • 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
    • B29C48/04—Particle-shaped
    • 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
    • B29C48/05—Filamentary, e.g. strands
    • 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
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/919—Thermal treatment of the stream of extruded material, e.g. cooling using a bath, e.g. extruding into an open bath to coagulate or cool the material

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

PURPOSE:To eliminate unevenness of the length due to cutting difect and improve the yield of the product by guiding the thermoplastic resin strands extruded from an extruder into the cooling water medium, and reheating and cutting them. CONSTITUTION:Thermoplastic resin to be pelletized which is fed from the resin raw material hopper 3 is molten and softened by the screw of the extruder 1 and volatile components are removed from the vent hole 4. Then, molten strands are guided from the die head 2 to the cooling bath 6, cooled, and cooled strands 5 are guided through the guide rolls 7 to the heater 8, reheated and cut by the cutting roll 10 of the pelletizer 9 and obtained as the pellet product 11. The temperature of said reheating is suitalbe to be about 20 deg.C higher than the heat deformation temperature of resin composing the strands are about 10 deg.C lower than the flow temperature.
JP55124812A 1980-09-09 1980-09-09 Manufacture of pellet Pending JPS5749515A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55124812A JPS5749515A (en) 1980-09-09 1980-09-09 Manufacture of pellet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55124812A JPS5749515A (en) 1980-09-09 1980-09-09 Manufacture of pellet

Publications (1)

Publication Number Publication Date
JPS5749515A true JPS5749515A (en) 1982-03-23

Family

ID=14894723

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55124812A Pending JPS5749515A (en) 1980-09-09 1980-09-09 Manufacture of pellet

Country Status (1)

Country Link
JP (1) JPS5749515A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS633021A (en) * 1986-06-23 1988-01-08 Mitsubishi Chem Ind Ltd Polycarbonate molding material
DE4118466A1 (en) * 1990-06-11 1991-12-12 Murata Manufacturing Co TEMPERATURE SENSOR
US5242225A (en) * 1990-06-11 1993-09-07 Murata Manufacturing Co., Ltd. Temperature sensor
WO1996014195A1 (en) * 1994-11-07 1996-05-17 C.F. Scheer & Cie Gmbh & Co. Device for granulating plastic strands

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS633021A (en) * 1986-06-23 1988-01-08 Mitsubishi Chem Ind Ltd Polycarbonate molding material
JPH0618890B2 (en) * 1986-06-23 1994-03-16 三菱化成株式会社 Polycarbonate molding material
DE4118466A1 (en) * 1990-06-11 1991-12-12 Murata Manufacturing Co TEMPERATURE SENSOR
US5199791A (en) * 1990-06-11 1993-04-06 Murata Manufacturing Co., Ltd. Temperature sensor
US5242225A (en) * 1990-06-11 1993-09-07 Murata Manufacturing Co., Ltd. Temperature sensor
WO1996014195A1 (en) * 1994-11-07 1996-05-17 C.F. Scheer & Cie Gmbh & Co. Device for granulating plastic strands
US6039905A (en) * 1994-11-07 2000-03-21 C.F.Scheer & Cie Gmbh & Co. Apparatus and method for granulating plastic strands

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