Higher percentage of slag inclusion
does not necessarily guarantee greater strength increase, as generally perceived and assumed in soil solidification.
Subsequent radiography confirmed the presence of this defect, which is believed to be a slag inclusion
(Marron and Kosnik, 2008).
You will learn about: Alloy and Treatment Process Optimization for quality ductile iron production; controlling slag inclusion
; opportunities for heat recovery in the cupola furnace plant; effective slag control in a coreless furnace; refractory and repair reline of channel furnaces and slag sampling and testing
Figure 1 shows a liquid slag inclusion
where sand grains have been embedded in the slag material, creating a liquid sand-slag agglomerate.
Discontinuities in iron castings include microshrinkage porosity, gas porosity, oxide films, slag inclusions
, coarse graphite particles, nodule clustering, degenerate graphite, flake graphite at the cast surface, and other issues.
Additionally, impurities like slag inclusions
collect at the inside bore of the pipe which is usually machined.
occur when the slag gets trapped inside of the weld metal, which could weaken weld components and reduce serviceability.
Second, since the ESR process has a considerable capability for the removal of large refractory or slag inclusions
, the use of complex filters and tundish arrangements in the VIM can be minimised.
They cover component casting, cast house processes, casting hydrodynamics, heat transport during component casting and cast house processes, structure and structure formation in cast materials, microsegregation in alloys, heat treatment and plastic forming, precipitation of pores and slag inclusions
during the casting process, solidification and cooling shrinkage of metals and alloys, and macrosegregation in alloys.
And what happens is that we don't have any type of slag inclusions
, which keeps the welds really clean."
Puddled iron -- the material used byBartholdi and Eiffel -- is relatively soft and contains a high proportion of slag inclusions
, silica fragments and other impurities.
However, the action of the magnetic field at induction of more than 0.2 T leads to the noticeable deterioration in the quality of a lateral surface of the ingot and appearance of slag inclusions
at the ingot periphery (Figure 3).