Cast involving manner and cast involving item

摘要

PROBLEM TO BE SOLVED: To metallurgically join an inserting material and a casting material in good condition with a simple method by inserting the inserting material with the casting material as cast-in after disposing Ni-Si-B base self-fluxing alloy containing a specific quantity of B in a part of the surface of the inserting material.;SOLUTION: The round bar-like Ni-Si-B base self-fluxing alloy 1 containing 2.0-4.0 wt.% B, e.g. having the composition of 0.08% C, 2.8% Si, 2.6% B, 3.5% Fe, 2.6% Cr and the balance Ni, and 5 mm diameter and 100 mm length, is preliminarily fixed on one side surface of a stainless steel (SUS 410 HP) 2 having 100 mm width, 250 mm length and 3 mm thickness with a spot welding. Successively, molten metal corresponding to a cast steel (SC 450) is poured into a cavity 5 and a feeder head 6 through a runner 4 with a bottom pouring method. Then, the portion of the runner 4 and the feeder head 6 is cut off and removed to obtain the insert product inserting the stainless steel sheet 2 with the cast steel having 100 mm width, 250 mm length and 52 mm thickness.;COPYRIGHT: (C)2001,JPO