B - Operations – Transporting – 23 – K
Patent
B - Operations, Transporting
23
K
148/62.3
B23K 35/362 (2006.01) B23K 35/36 (2006.01)
Patent
CA 1198657
BASIC BONDED FLUXES FOR SUBMERGED ARC WELDING HAVING AN EXCELLENT REMOVABILITY OF SLAG AT A NARROW GROOVE Abstract of the Disclosure Basic bonded fluxes for submerged arc welding consisting of a mixture of a slag forming composition, a gas forming composition and metal powders, in which a volume contraction of the weld slag is remarkable in the cooling process after the solidification of the weld slag and the removal of slag in the groove is easy, contain 5 to 20% by weight of BaO, not more than 10% by weight of CaO, 20 to 50% by weight of MgO, 6 to 25% by weight of SiO2, 3 to 15% by weight of Al2O3 and 7 to 18% by weight of CaF2 as the slag forming composition, a value of basicity shown by a ratio of the basic component and the acidic component being 2.3 to 4.5, the above described contents of BaO, CaO and MgO including amounts correspond- ing to the values obtained by calculating an amount of carbonates of these metals which are incorporated as the gas forming composition, as oxides and further contain 10 to 60% by weight of metal carbonates as the gas forming composition.
393494
Hirai Yukio
Tokuhisa Masaaki
Kawasaki Steel Corporation
Smart & Biggar
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