Hollow plastics tubing prodn
    17.
    发明专利

    公开(公告)号:DE1961078A1

    公开(公告)日:1971-06-09

    申请号:DE1961078

    申请日:1969-12-05

    Applicant: BASF AG

    Abstract: A vertical plug core is mounted in an extruder housing, the plug passing through a conical extruder. In operation the thermoplastic is fed to the extruder, and heating elements induce plastification. The extruder forces the material out round the plug core producing a continuous seamless tubing.

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