COATING FILM REMOVAL DEVICE, COATING FILM REMOVAL METHOD, JOINING DEVICE, AND JOINING METHOD

WIPO Patent Application WO/2020/245913

A1

A coating film removal device (60) according to the present invention is provided with: pairs of brush rolls (61A, 61B) each for removing surface coating films formed on the obverse and reverse of a corresponding one of steel sheets S which are joining targets; and pairs of pressure application rolls (62A, 62B) each for holding the steel sheet S having the surface coating films removed by a corresponding one of the pairs of brush rolls (61A, 61B) from the obverse and reverse and for applying pressure to the joining target while moving with respect to the joining target. The coating film removal device (60) according to the present invention, when removing the surface coating films, applies pressure to each of the steel sheets S from the obverse and reverse by using a corresponding one of the pairs of pressure application rolls (62A, 62B). Therefore, even if each of the steel sheets S undergoes deformation such as undulation, deformation is reduced in a pressure application portion during pressure application.

MITSUZUMI TATSUKI (JP)
MITSUOKA RYOSUKE (JP)
NAKAYA TAKAFUMI (JP)
ONOSE MITSURU (JP)
HIROHATA KENJI (JP)
WATANABE YUJIRO (JP)
TAGATA HIROTOSHI (JP)

PCT/JP2019/022167

December 10, 2020

June 04, 2019

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PRIMETALS TECH JAPAN LTD (JP)

B24B29/06; B23K11/06; B23K11/34; B24B7/12

WO2019087386A1

2019-05-09

JPH07328903A	1995-12-19
JPH0288161A	1990-03-28
JPH10118773A	1998-05-12
JPH0253355U	1990-04-17
KR20180118341A	2018-10-31
JPS58191945U	1983-12-20
JPS52121790U	1977-09-16
JPS57131244U	1982-08-16
JPH04115863A	1992-04-16

OBA, Mitsuru et al. (JP)

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