Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1989-01-26
1991-01-08
Wityshyn, Michael G.
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
1563041, 1563046, 219106, 228189, B23K 3102, B65H 6908
Patent
active
049832417
ABSTRACT:
A method of splicing together leading and following webs which are delivered successively. In the splicing method, when the leading and following webs are different in shape or material from each other, there is interposed between the leading and following webs a dummy web for increasing the strength of splicing of the webs. Also, when the leading and following webs are welded and spliced together, the two webs are in part overlapped on each other and the overlapped portions thereof are cut inclined with respect to the width direction of the webs. After waste materials produced from the cutting are removed, the ends of the webs are butted against each other or slightly overlapped on each other and then are welded together. A welded and spliced portion, which includes a fusion portion and a recrystallized portion produced due to heat during welding, is formed such that a difference between the web thickness of the recrystallized portion and the thickness of the adjoining portions of the recrystaliized portion is within .+-.30%.
REFERENCES:
patent: 3654035 (1972-04-01), Takimoto
patent: 3925637 (1975-12-01), Becker
patent: 4144442 (1979-03-01), Augustin et al.
patent: 4540456 (1985-09-01), Kaida et al.
patent: 4765530 (1988-08-01), Dang et al.
patent: 4878986 (1989-11-01), Nishikawa
Kakei Tsutomu
Matsuki Masaya
Sawada Hirokazu
Fuji Photo Film Co. , Ltd.
Wityshyn Michael G.
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