Butt-welded cans and process for manufacturing the same

Receptacles – Outlet or junction box type – Sectional receptacle

Patent

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Details

228118, 228151, 228214, 413 77, 29 33D, 219 64, 428 358, 220454, 220456, 220DIG29, B23K 2618

Patent

active

048057959

ABSTRACT:
There is here provided butt-welded cans made of steel plates having a carbon concentration of 0.02 to 0.09% by weight, the aforesaid butt-welded cans being characterized in that a coating film for preventing the adhesion of melted metal particles is applied to at least the inner surface of the weld portion and its vicinity of each can, and a carbon concentration index I of the weld portion satisfies the formula (1)

REFERENCES:
patent: 4471883 (1984-09-01), Kitamura et al.
patent: 4662558 (1987-05-01), Hamanaka
patent: 4735835 (1988-04-01), Taira et al.

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