Method of joining nodular cast iron to steel by means of fusion

Details Method of joining nodular cast iron to steel by means of fusion Method of joining nodular cast iron to steel by means of fusion

1987-09-22

1989-04-04

Godici, Nicholas P.

Metal fusion bonding

Process

Plural filler applying

228231, 228232, 22826315, 2191461, 21914624, 420117, B23K 3530, C21D 950

Patent

active

048178594

ABSTRACT:
A component made of nodular cast iron is joined to a component made of steel by means of fusion welding, a Fe alloy containing 2 to 4% by weight of silicon and seeding materials for the purpose of globular carbon precipitation in the welding zone being used as filler. Advantageously, the nodular cast iron component is provided beforehand with a build-up welding with Si-alloyed filler or with an unalloyed filler now alloyed with such a Si-alloyed filler, whereupon the weld joining to the steel component can be carried out with conventional iron electrodes.
Preferred Si-alloyed filler:

REFERENCES:
patent: 3449545 (1969-06-01), Petitt
patent: 4426426 (1984-01-01), Muhlberger
patent: 4436554 (1984-03-01), Omae et al.
Metals Handbook, Ninth Edition, vol. 6, pp. 312-315, 602-604, Copyright 1983.

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