JPS54150351A - Manufacture of wide metallic clad plate - Google Patents

Abstract

PURPOSE: To restrict the generation of the defective alloy layer, and to inexpensively manufacture the explosively clad plate, by initiating the explosion from the point, offset from the weld line, at approximate middle of the clad metal, so as to make the weld line of the clad metal to be approximately parallel to the direction of the explosive cladding of the clad metal onto the parent metal.

CONSTITUTION: The explosion initiating point 3, in case of use of the clad metal 1 including the weld line 2 longer than 1500mm, is 5W20mm offset from the middle point of the weld line 2 toward the wider area side of the unwelded portion; and the explosion is initiated from this point 3. Even if the explosion is initiated from the point other than above stated explosion initiating point 3, the explosive cladding is possible, however, the point 3 is favorable, and the initiation of explosion at a point on the weld line 2 ought to be avoided. In the method of this invention, the weld line longer than 1500mm in the clad metal is approximately parallel to the direction of detonation of explosives, and the explosion must be initiated from the unwelded zone, a little offsetting from the weld line; hereupon, about 5W20mm offset is favorable. When the string type explosives is not used, the distance between weld lines longer than 1500mm is limited under approximate 500mm, preferably under 300mm.

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