JPS6420114A - Manufacture of prop for agriculture and gardening - Google Patents

Manufacture of prop for agriculture and gardening

Info

Publication number
JPS6420114A
JPS6420114A JP62176670A JP17667087A JPS6420114A JP S6420114 A JPS6420114 A JP S6420114A JP 62176670 A JP62176670 A JP 62176670A JP 17667087 A JP17667087 A JP 17667087A JP S6420114 A JPS6420114 A JP S6420114A
Authority
JP
Japan
Prior art keywords
polyvinyl chloride
state
semi
raw materials
hard polyvinyl
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
JP62176670A
Other languages
Japanese (ja)
Inventor
Kunio Yamamoto
Shusaku Shimoda
Ichiro Ito
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.)
Toyo Kagaku Co Ltd
Original Assignee
Toyo Kagaku 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 Toyo Kagaku Co Ltd filed Critical Toyo Kagaku Co Ltd
Priority to JP62176670A priority Critical patent/JPS6420114A/en
Publication of JPS6420114A publication Critical patent/JPS6420114A/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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
    • B29C48/151—Coating hollow articles
    • 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
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels

Landscapes

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

Abstract

PURPOSE:To manufacture a product superior in combining properties by a string and winding properties of a vine, by a method wherein a mixture of soft polyvinyl chloride and hard polyvinyl chloride is applied continuously on the surface of a long- sized metallic pipe by extruding through a crosshead die as raw materials under a state where the soft polyvinyl chloride is melted and the hard polyvinyl chloride is semi-molten. CONSTITUTION:Raw materials comprised of 100pts.wt. powdery soft polyvinyl chloride and 25-400pts.wt. hard polyvinyl chloride formed in a pulverized state through molding beforehand by adding and kneading the latter to the former is loaded into an extruding machine 1. The raw materials are discharged through a crosshead die 2 under a state where the soft polyvinyl chloride is melted completely and hard polyvinyl is semi- molten. A long-sized metallic pipe (a) molded beforehand into a tubular state by a pipe manufacturing machine 4 by sending out through an uncoiler 3 is pierced through the crosshead die 2 so that the same is moved crosswise and synthetic resin jacket (b) is formed on the surface. The pipe is cut in standard lengths by a cutter 5 after cooling and caps are fitted over both end opening parts of them. A minute uneven part (c) which is ascribable to the hard polyvinyl chloride discharged onto the resin jacket (b) under a semi-molten state is formed extending over the whole surface.
JP62176670A 1987-07-15 1987-07-15 Manufacture of prop for agriculture and gardening Pending JPS6420114A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62176670A JPS6420114A (en) 1987-07-15 1987-07-15 Manufacture of prop for agriculture and gardening

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62176670A JPS6420114A (en) 1987-07-15 1987-07-15 Manufacture of prop for agriculture and gardening

Publications (1)

Publication Number Publication Date
JPS6420114A true JPS6420114A (en) 1989-01-24

Family

ID=16017662

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62176670A Pending JPS6420114A (en) 1987-07-15 1987-07-15 Manufacture of prop for agriculture and gardening

Country Status (1)

Country Link
JP (1) JPS6420114A (en)

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