Title:
METHOD FOR MEASURING WET STATE OF BRAZING MATERIAL, BASE MATERIAL, AND DEVICE FOR MEASURING WET STATE OF BRAZING MATERIAL
Document Type and Number:
WIPO Patent Application WO/2019/146548
Kind Code:
A1
Abstract:
Provided is a method for measuring a wet state of a brazing material, with which it is possible to measure the wet state of a brazing material being evaluated, in a state in which the brazing material is covered with flux.
Using a metal base material 1 which has a recessed portion 10 open on a vertically upper side and closed on a lower side, the cross section of the recessed portion 10 including contacting surfaces 11 which are inclined with respect to the vertical direction, in a direction in which a gap therebetween on the vertically lower side is narrower than on the vertically upper side, and in which an angle between the opposing contacting surfaces 11 is less than 180°, the recessed portion 10 is filled with flux to be evaluated, and a brazing material to be evaluated, such as solder, and after having been heated to a temperature exceeding the melting point of the solder, a contact angle θa between the solidified solder and the contacting surface 11 is measured.
Inventors:
FUJIMOTO KOZO (JP)
FUKUMOTO SHINJI (JP)
MIZOKAMI YOSUKE (JP)
UESHIMA MINORU (JP)
ICHIKAWA RYO (JP)
FUKUMOTO SHINJI (JP)
MIZOKAMI YOSUKE (JP)
UESHIMA MINORU (JP)
ICHIKAWA RYO (JP)
Application Number:
PCT/JP2019/001676
Publication Date:
August 01, 2019
Filing Date:
January 21, 2019
Export Citation:
Assignee:
UNIV OSAKA (JP)
SENJU METAL INDUSTRY CO (JP)
SENJU METAL INDUSTRY CO (JP)
International Classes:
G01N13/00; B23K1/00
Foreign References:
| US5792941A | 1998-08-11 | |||
| JP2003203704A | 2003-07-18 | |||
| JPH03192615A | 1991-08-22 | |||
| CN105388090A | 2016-03-09 | |||
| US6581438B1 | 2003-06-24 | |||
| JPH07174686A | 1995-07-14 |
Other References:
OHMORI, AKIRA ET AL.: "Estimation of Wetting", JOURNAL OF THE JAPAN WELDING SOCIETY, vol. 47, no. 4, 5 April 1978 (1978-04-05), pages 192 - 198, XP055628694
NAKAMURA, HARUO: "Control of Fatigue Crack Growth Rates by Infiltrating Solder between Crack Surfaces", TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS SERIES A, vol. 62, no. 594, 25 February 1996 (1996-02-25), pages 363 - 369
NAKAMURA, HARUO: "Control of Fatigue Crack Growth Rates by Infiltrating Solder between Crack Surfaces", TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS SERIES A, vol. 62, no. 594, 25 February 1996 (1996-02-25), pages 363 - 369
Attorney, Agent or Firm:
YAMAGUCHI INTERNATIONAL PATENT FIRM (JP)
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