Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B22—CASTING; POWDER METALLURGY
  • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
  • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
  • B22D11/12—Accessories for subsequent treating or working cast stock in situ
  • B22D11/122—Accessories for subsequent treating or working cast stock in situ using magnetic fields

Definitions

• the object of the invention is, based on the known method of conductive influencing of a metallic casting strand with simple means and low operating costs, to produce a stirring movement in the strand which is particularly advantageous for horizontal continuous casting, with the aid of which the metal, preferably iron and steel and their alloys, can be produced a force is exerted which acts on the solidifying material particles, in particular globolites, in the circumferential direction and segregates them as homogeneously as possible.
• FIG. 1 shows a horizontal continuous casting installation in a schematic side view
• Figure 2 shows the arrangement of the permanent magnets in an enlarged view
• Figure 3 different embodiments for the iron rings to be arranged between the permanent magnets.
• the horizontal continuous casting plant for steel strands shown schematically in FIG. 1 usually consists of a feed container 8 filled with melt, to which the mold 9, in which the strand is formed, adjoins.
• the strand 2 which begins to solidify in the mold from the outside, is passed through a permanent magnet system arrangement 3 while it still has a liquid or pasty inner region. The further movement of the solidified strand 2 takes place with the aid of a conventional drawing machine 10.
• a direct voltage generated in the arrangement 1 is applied to the strand 2 at 4.
• there is a stirring movement which causes the globolites to separate or to equalize the strand by preventing segregation.
• the permanent magnet system consists of the magnets concentrically surrounding the circular strand 2, which are magnetized axially, in such a way that the north pole is located on one and the south pole on the other annular end face of the permanent magnets .
• Two successive magnets of the arrangement are oriented opposite each other.
• iron rings or disks 5 are provided, which, as explained in FIG. 3, are designed by radially extending cross-sectional conditions such that they are caused by the circumferential magnetic field are not magnetically saturated by the current flowing in strand 2.
• the magnetic resistance in the iron rings or disks 5 can also be increased by appropriate air gaps.
• Both the permanent magnets and the iron rings or disks are expediently divided into segments along radially running surfaces.

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• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Continuous Casting (AREA)

Applications Claiming Priority (2)

Publications (1)

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ID=6319634

Family Applications (1)

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Family Cites Families (2)

• 1987
  • 1987-01-23 DE DE19873702381 patent/DE3702381A1/de active Granted
• 1988
  • 1988-01-20 EP EP19880901018 patent/EP0345269A1/de not_active Withdrawn
  • 1988-01-20 JP JP50127988A patent/JPH02501903A/ja active Pending
  • 1988-01-20 WO PCT/DE1988/000031 patent/WO1988005353A1/de not_active Application Discontinuation
  • 1988-01-20 BR BR888807327A patent/BR8807327A/pt unknown
  • 1988-01-22 ES ES8800155A patent/ES2006274A6/es not_active Expired

Non-Patent Citations (1)

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