Title:
SPINY LINER, METHOD FOR MANUFACTURING SAME, AND METHOD FOR DISCRIMINATING JOINING STRENGTH
Document Type and Number:
WIPO Patent Application WO/2021/255890
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing a spiny liner that can further improve joining strength when integrated with metal on an outer circumferential surface side. The spiny liner having a plurality of protrusions on the surface, including narrowed mid-section protrusions, and capable of solving the problem, wherein the total value of the following (I) and (II) for the protrusions is 1.55 or more, where Pc is the number of the narrowed mid-section protrusions per 100 mm2, h (mm) is the average height of the protrusions, and dw (mm) is the average maximum thickness and dn (mm) is the average minimum thickness of any 20 protrusions from among the narrowed mid-section protrusions. (I) = Pc × [(0.35hπ/12) × (2dw2 - dw × dn - dn2)]; (II) = Pc × {(dn2/4) × π × 0.35h}
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Inventors:
SATO AKIRA (JP)
SATO TAKASHI (JP)
KAWAI KIYOYUKI (JP)
SATO TAKASHI (JP)
KAWAI KIYOYUKI (JP)
Application Number:
PCT/JP2020/023956
Publication Date:
December 23, 2021
Filing Date:
June 18, 2020
Export Citation:
Assignee:
TPR CO LTD (JP)
TPR IND CO LTD (JP)
TPR IND CO LTD (JP)
International Classes:
F02F1/00; F16J10/04
Domestic Patent References:
| WO2019225038A1 | 2019-11-28 | |||
| WO2019097573A1 | 2019-05-23 |
Foreign References:
| JP2003326353A | 2003-11-18 | |||
| JP2011194407A | 2011-10-06 | |||
| JP2007016733A | 2007-01-25 | |||
| JP2005194983A | 2005-07-21 | |||
| JP2009264347A | 2009-11-12 | |||
| JPH0210743B2 | 1990-03-09 |
Other References:
See also references of EP 4170153A4
Attorney, Agent or Firm:
IP FIRM SHUWA (JP)
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