Continuous stream - inclined trough treatment of ductile iron

Details Continuous stream - inclined trough treatment of ductile iron Continuous stream - inclined trough treatment of ductile iron

1975-04-17

1977-06-07

Satterfield, Walter R.

Specialized metallurgical processes, compositions for use therei

Processes

Free metal or alloy reductant contains magnesium

75130A, 75130BB, 148 35, 75123CB, C22C 3308, C22C 3300

Patent

active

040280993

ABSTRACT:
A method and apparatus for producing modified grey iron, and particularly nodular cast iron, is disclosed. The apparatus comprises refractory elements including an inclined flow course for continuous reception of molten grey iron, a V-shaped inclined receptacle interposed in said course into which a predetermined supply of modifying agent, such as magnesium, is injected to react with said iron, and means for controlling the egress of iron from the receptacle in order to sequentially stage the build-up and dissipation of a pool of iron in said receptacle facilitating chemical reactions and thorough mixing for attaining and improving the homogeneity of the modified iron elements. The product and compositon uniquely is characterized by about 3.5 carbon, by weight, 2.5% silicon, 0.2-0.9% Mn sulfur no greater than 0.015%, the remainder being essentially iron; the composition is devoid of carbide and dross or slag and has a graphite nodule count of at least 400 per square millimeter in a 1/2 inch section.

REFERENCES:
patent: 2677609 (1954-05-01), Moore et al.
patent: 2867555 (1959-01-01), Curry
patent: 3193383 (1965-07-01), Butler
patent: 3545960 (1970-12-01), McClellan et al.

Affiliated with

Also associated with

Rating

Continuous stream - inclined trough treatment of ductile iron does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Continuous stream - inclined trough treatment of ductile iron, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Continuous stream - inclined trough treatment of ductile iron will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1234923