Abstract An apparatus for the manufacture of strands of molten metal, in particular nonalloyed and alloyed steels, by continuous casting, comprising a mold for continuously casting a strand and means for simultaneously withdrawing the cast strand from the mold. The cast strand which exits from the mold is in a partially solidified state and has a molten core. The withdrawing means comprise a pair of spaced grooved rollers which define a box-pass therebetween. The bottom of the groove of each roller includes a convexedly curved portion, the camber of convexity of which amounts to 10-25 percent of the height of the box-pass. Pressure producing means are operatively connected to the pair of grooved rollers. This pressure producing means being selectively variable in applying pressure at ratios ranging from 1:4 to 1:8.
The apparatus as set forth in claim 1, wherein said pressure application means have a degree of variability ranging from 1:4 to 1:8.
Claim 2
Dependent Claim
15 words
The apparatus as set forth in claim 2, wherein said projecting portion is substantially curved.
Claim 3
Dependent Claim
15 words
The apparatus as set forth in claim 2, wherein said projecting portion is substantially flat.
Claim 4
Dependent Claim
28 words
The apparatus as set forth in claim 2, including at least one second pair of oppositely mounted rollers which is mounted downstream from said first pair of rollers.
Claim 5
Dependent Claim
29 words
The apparatus as set forth in claim 5, wherein the axes of the rollers of said first pair and of said second are perpendicular with respect to each other.
Claim 6
Dependent Claim
35 words
The apparatus as set forth in claim 6, wherein said second pair of rollers define a second box-pass therebetween, the bottom of each roller of said second pair being substantially flat over its entire surface.