JPS5782025A - Fiber reinforced, low ratio foaming, thick plate manufactured by extrusion molding - Google Patents

Fiber reinforced, low ratio foaming, thick plate manufactured by extrusion molding

Info

Publication number
JPS5782025A
JPS5782025A JP55158962A JP15896280A JPS5782025A JP S5782025 A JPS5782025 A JP S5782025A JP 55158962 A JP55158962 A JP 55158962A JP 15896280 A JP15896280 A JP 15896280A JP S5782025 A JPS5782025 A JP S5782025A
Authority
JP
Japan
Prior art keywords
glass fiber
thick plate
low ratio
foaming
fiber reinforced
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
JP55158962A
Other languages
Japanese (ja)
Inventor
Yoshinobu Yoshikawa
Kohei Deguchi
Mitsuo Matsumoto
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.)
FUJIMOTO MASAZO
FUJIMOTO MASAZOU
Kobunshi Giken KK
Original Assignee
FUJIMOTO MASAZO
FUJIMOTO MASAZOU
Kobunshi Giken KK
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 FUJIMOTO MASAZO, FUJIMOTO MASAZOU, Kobunshi Giken KK filed Critical FUJIMOTO MASAZO
Priority to JP55158962A priority Critical patent/JPS5782025A/en
Publication of JPS5782025A publication Critical patent/JPS5782025A/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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/36—Feeding the material to be shaped
    • B29C44/46—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length
    • B29C44/50—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length using pressure difference, e.g. by extrusion or by spraying
    • B29C44/505—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length using pressure difference, e.g. by extrusion or by spraying extruding the compound through a flat die
    • 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
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/475—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using pistons, accumulators or press rams
    • 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
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
    • B29K2105/12—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of short lengths, e.g. chopped filaments, staple fibres or bristles

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Moulding By Coating Moulds (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Molding Of Porous Articles (AREA)

Abstract

PURPOSE:To obtain the low ratio foaming, thick plate characterized by increased mechanical strength and excellent working property by extruding thermoplastic synthetic resin powder or particles including glass fiber and foaming agent by an extruding mechanism having small shearing stress and pressing the material. CONSTITUTION:The glass fiber is obtained by cutting the bundled body of the glass fiber or single fiber filament into the length of 12mu or less. Said glass fiber is mixed with the thermoplastic synthetic resin in the state of powder, fine particles, or pellets, the foaming agent, and stabilizing agent if necessary. The mixture is evenly dispersed and put into an extruder cylinder 1. Then it is heated and injected into a sizing die 4 through a nozzle 3. The extruding mechanism has the small shearing stress in order to prevent collapse and pulverization of the glass fiber. The diameter of the nozzle 3 is made large in order to reduce the resistance to the glass fiber. The extruded molded body 5 is cooled and pressed by a thickness adjusting press mechanism 6, and the fiber reinforced, thermoplastic, thick plate having a constant thickness and a constant specific gravity is obtained.
JP55158962A 1980-11-11 1980-11-11 Fiber reinforced, low ratio foaming, thick plate manufactured by extrusion molding Pending JPS5782025A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55158962A JPS5782025A (en) 1980-11-11 1980-11-11 Fiber reinforced, low ratio foaming, thick plate manufactured by extrusion molding

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55158962A JPS5782025A (en) 1980-11-11 1980-11-11 Fiber reinforced, low ratio foaming, thick plate manufactured by extrusion molding

Publications (1)

Publication Number Publication Date
JPS5782025A true JPS5782025A (en) 1982-05-22

Family

ID=15683155

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55158962A Pending JPS5782025A (en) 1980-11-11 1980-11-11 Fiber reinforced, low ratio foaming, thick plate manufactured by extrusion molding

Country Status (1)

Country Link
JP (1) JPS5782025A (en)

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