Title:
波形管を製造するための方法および装置
Document Type and Number:
Japanese Patent JP6721662
Kind Code:
B2
Abstract:
A method is provided for producing a corrugated tube that has, at least in sections, first outer wall regions with a first external diameter and second outer wall regions with a second external diameter that alternate in a wave-shaped manner. The first external diameter is greater than the second external diameter. The corrugated tube is produced by a plastic vacuum/blow molding process in a plastic vacuum/blow mold with a corrugator (1). One or more openings are made in at least some of the first outer wall regions. The openings are made in at least some of the first outer wall regions of the corrugated tube during the plastic vacuum/blow molding process within the corrugator (1).
Inventors:
Sven Auha
Application Number:
JP2018221013A
Publication Date:
July 15, 2020
Filing Date:
November 27, 2018
Export Citation:
Assignee:
Dr. Ing. h.c. F. Porsche Aktiengesellschaft
International Classes:
B29D23/18; B29C49/30; B29C51/30; F16L11/11
Domestic Patent References:
| JP2012025006A | ||||
| JP53114869A | ||||
| JP53086773A | ||||
| JP4128826U | ||||
| JP2024133A |
Attorney, Agent or Firm:
Nobuyuki Okajima