Title:
接続スリーブを有する二重壁熱可塑性チューブを製造する方法及び装置
Document Type and Number:
Japanese Patent JP3854228
Kind Code:
B2
Abstract:
In at least one method for manufacturing a double-walled, thermoplastic tube with a connecting sleeve, which enables precise and complete moulding of the connecting sleeve by simple means, it is provided that a) a first tube (1) is extruded into a mould tunnel (4) comprising at least one row of moulds (5) guided on a path, b) the first tube (1) is given a corrugated shape in at least one first section and expanded into a connecting sleeve in at least one second section, c) a second tube (6) is extruded into the first tube and pressed against the corrugation troughs (8) of the first tube (1), d) while the first tube (1) is being given a corrugated shape and the second tube (6) extruded into the first, the space (A) between the two tubes (1, 6) is subjected to a pressure p1 that is above atmospheric pressure, e) the space (A) between the two tubes (1, 6) is subjected, at a specified time before or after expansion of the first tube (1) into a connecting sleeve, to an essentially constant pressure p2≰p1 above atmospheric pressure, or to a variable, but not continuously declining pressure p2, f) during extrusion of the second tube (6) into the first tube (1), which has already been expanded into a connecting sleeve, the second tube (6) is internally subjected to a pressure p3 above atmospheric pressure and pressed against the first tube (1), and g) pressure p1 is subsequently again applied to space (A) between the two tubes.
Inventors:
Rupke, Manfred A. A.
Rupke, Stefan A.
Rupke, Stefan A.
Application Number:
JP2002569387A
Publication Date:
December 06, 2006
Filing Date:
July 25, 2001
Export Citation:
Assignee:
Rupke, Manfred A., A.
Rupke, Stefan, A.
Rupke, Stefan, A.
International Classes:
B29C48/30; B29C48/32; B29C48/335; B29C48/92; B29C49/78; B29D23/18; B29D24/00; B29C48/09; B29C48/13; B29C49/00; B29C49/04; B29C57/00
Domestic Patent References:
| JP2000127220A | ||||
| JP60079936A | ||||
| JP9503455A | ||||
| JP63004931A | ||||
| JP46009674A | ||||
| JP61261020A | ||||
| JP61125420U | ||||
| JP4128826U |
Attorney, Agent or Firm:
Masao Okabe
Nobuaki Kato
Kazuo
Shinichi Usui
Ikuo Fujino
Takao Ochi
Teruhisa Motomiya
Norimichi Takanashi
Asahi Shinmitsu
Seiichiro Takahashi
Koji Yoshizawa
Nobuaki Kato
Kazuo
Shinichi Usui
Ikuo Fujino
Takao Ochi
Teruhisa Motomiya
Norimichi Takanashi
Asahi Shinmitsu
Seiichiro Takahashi
Koji Yoshizawa