Title:
内面螺旋溝付管の製造方法および製造装置と内面螺旋溝付管
Document Type and Number:
Japanese Patent JP6930825
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a method and a device for manufacturing a pipe with an inner surface spiral groove made of aluminum alloy.SOLUTION: A manufacturing method of a pipe with an inner surface spiral groove includes: a process of causing the pipe with the inner surface groove to pass through a first drawing die, thereby, applying diameter reduction and twisting and forming an intermediate twist pipe by using a revolution flyer which reverses a moving course of pipe material between the first and second drawing dies and revolves around either one side of the first and second drawing dies; and a process of causing the intermediate twist pipe to pass through the second drawing die, applying diameter reduction and twisting, and forming a pipe with an inner surface spiral groove. Therein, in at least one side of the first drawing die and the second drawing die, the die during the drawing is reciprocally moved forward and backward along a movement direction of the pipe material.SELECTED DRAWING: Figure 2
Inventors:
Yusuke Nakaura
Hateruma Yuki
Hateruma Yuki
Application Number:
JP2016176741A
Publication Date:
September 01, 2021
Filing Date:
September 09, 2016
Export Citation:
Assignee:
Mitsubishi Aluminum Co., Ltd.
International Classes:
B21C1/22; B21C1/00; B21C37/26; F28F1/40; F28F21/08
Domestic Patent References:
| JP10153360A |
Attorney, Agent or Firm:
Yasushi Matsunuma
Mitsuo Teramoto
Fumihiro Hosokawa
Kazunori Onami
Mitsuo Teramoto
Fumihiro Hosokawa
Kazunori Onami