Title:
ELECTRIC-WELDED STEEL TUBE FOR PRODUCING HOLLOW STABILISER, HOLLOW STABILISER, AND PRODUCTION METHODS FOR SAME
Document Type and Number:
WIPO Patent Application WO/2019/188224
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a high-strength hollow stabiliser and an electric-welded steel tube for producing a high-strength hollow stabiliser having excellent anti-fatigue characteristics. An electric-welded steel tube (5) for producing a hollow stabiliser comprises an inner weld bead cut part (30) that has a three-peak shape, the depth (H) of a trough (30a) of the three-peak shape being 0.3mm or less, and the angle (θ) formed between a peripheral-direction centre part of the trough (30a) and the tips of left/right peaks (30b, 30c) positioned on the left/right sides of the trough (30a) being at least 160° and less than 180°.
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Inventors:
ARATANI MASATOSHI (JP)
MATSUI RYOJI (JP)
NAKATA HIROSHI (JP)
KONDO TOMONORI (JP)
HORI HIROMICHI (JP)
MATSUI RYOJI (JP)
NAKATA HIROSHI (JP)
KONDO TOMONORI (JP)
HORI HIROMICHI (JP)
Application Number:
PCT/JP2019/009811
Publication Date:
October 03, 2019
Filing Date:
March 11, 2019
Export Citation:
Assignee:
JFE STEEL CORP (JP)
International Classes:
B21C37/30; B21B17/14; B21C37/08; B21D5/10; B21D53/88; B23K13/00; B23K37/08; B60G21/055; C21D8/10; C21D9/08; C21D9/50; C22C38/00; C22C38/38; C22C38/58
Domestic Patent References:
| WO2013175821A1 | 2013-11-28 | |||
| WO2009123330A1 | 2009-10-08 |
Foreign References:
| JP2007270349A | 2007-10-18 |
Attorney, Agent or Firm:
TANAKA Hidetetsu et al. (JP)
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