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
  • B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
  • B22D11/0637—Accessories therefor
  • B22D11/0648—Casting surfaces
  • B22D11/0651—Casting wheels

Definitions

• the invention relates to a casting wheel with an interchangeable, driven casting ring for a two-roll belt casting machine, as it is for. B. was known in principle from US Pat. No. 2,383,310.
• the performance of a two-roll belt casting machine depends, among other things, on the diameter of the casting wheel. Casting 5 mm thick and 1,000 mm wide strips results in a casting rate of 2 to / min. for example a casting wheel diameter of approximately 2,000 mm. For a greater casting performance of 3 to / min. casting wheels with a diameter of up to 3,000 mm are required. Casting wheels of this size cannot be economically manufactured and used in the designs previously implemented.
• the object of the invention is to provide a casting wheel with a simple and quickly exchangeable casting ring for a two-roll belt casting machine.
• the casting ring is supported on the inside on several, arranged in a fixed roll core, radially adjustable support and bearing elements and a rotatably mounted support and joining roller in the roll core, which is preferably driven and coupled to the casting ring with frictional engagement.
• the casting ring can be replaced quickly. To replace it, it is only necessary to loosen the support and bearing elements on the inside of the casting ring. The casting ring can then be removed from the roll core and replaced with a new casting ring.
• the casting ring can be axially fixed on the roll core in various ways.
• the casting ring has on its inside a running channel in which the support and joining roller and / or at least one support and bearing element engage.
• the support and bearing elements are preferably rollers. However, they can also be designed as hydraulic cushions.
• actuating elements supported on the roller core in particular tensioning and adjusting cylinder piston units, are provided.
• the roller core is arranged in a cooling chamber which can be filled with coolant and which is on both ends by means of the casting ring moving side windows is completed, which are sealed at their periphery with sealing lips against the casting ring delimiting the cooling chamber.
• Fig. 1 is a two-roll belt casting machine in
• Fig. 3 shows a casting wheel of the strip casting machine according to Figure 1 in axial section along line II-II of Figure 1 in a constructive design.
• the two-roll belt casting machine shown in FIGS. 1 and 2 consists of two similar casting wheels 1, 2 arranged horizontally next to one another, which together form a preferably adjustable casting gap 3, the width of which is equal to the thickness of a belt 4 to be cast.
• Molten metal is poured from a casting vessel 5 above the casting gap 3 between the two rollers 1, 2. So that the molten metal does not flow off to the side, stationary sealing elements 6, 7 are provided on both sides.
• Each casting roller 1, 2 has a fixed core 8 with, for example, three support rollers 9, 10, 11 mounted therein, a support and a substantially larger diameter Joining roller 12. While the support rollers 9-11 are freely rotatable, the support and joining roller 12 is rotatably mounted and driven. On the support rollers 9-11 and the support and joining roller 12, a casting ring 13 runs.
• the casting ring 13 on the one hand and connected side plates 14, 15 connected thereto form a cooling chamber for a coolant, in particular cooling water, which is introduced into the cooling chamber via an inlet 16 and is discharged via an outlet 17.
• the cooling water first flows around the upper half of the support and joining roller 12, then flows along the back of the casting ring to the first support roller 11, flows around it and then continues along the casting wheel 13 and the other support rollers 9, 10 until it reaches Support and joining roller 12 arrives, on the lower half of which it flows along the outlet 17.
• the fixed core 8 here embodied in a welded steel construction, contains two lateral bearing plates 16, 17, which are connected to fixed hollow bearing shafts 18, 19, which in turn are held in bearing pieces, not shown.
• a bearing shaft 20 is held in the plates 16, 17, on which the support and joining roller 12 is rotatably mounted.
• the support and joining roller 12 carries on one end face a gear 21 which is in engagement with a driven gear 22 rotatably mounted in the plate 17.
• the support roller 10 and preferably also the support roller 9 or / and 11 are each freely rotatably supported on a bearing shaft 23 which is supported by blocks 24a, 24b and a bridge member 24c in a radially adjustable manner by a cylinder piston unit 25.
• the cylinder-piston unit 25 is held in a bridge member 26 between the plates 16, 17.
• the casting ring 13 has on its inside a trough 13a in which the support and joining roller 12 and the support rollers 9-H engage in a form-fitting manner and in this way fix the casting ring 13 radially and axially.
• the front side disks 14, 15 are freely rotatably mounted on the hollow bearing shafts 18, 19.
• the support rollers 9-11 are radially reset with the cylinder piston units 25, as a result of which the casting ring 13 is released radially so that it can be removed.
• a new pouring ring is fitted and fixed radially and axially by the adjustment of the support rollers 9-11 engaging in the race 13a.
• the cooling chamber is also automatically closed.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Continuous Casting (AREA)
• Rolls And Other Rotary Bodies (AREA)

Priority Applications (2)

Applications Claiming Priority (2)

Publications (2)

Family

ID=6398151

Family Applications (1)

Country Status (4)

Cited By (3)

Families Citing this family (1)

Family Cites Families (6)

• 1990
  • 1990-01-16 DE DE19904001047 patent/DE4001047A1/de active Granted
• 1991
  • 1991-01-15 JP JP91502436A patent/JPH05506187A/ja active Pending
  • 1991-01-15 EP EP19910902135 patent/EP0510047B1/de not_active Expired - Lifetime
  • 1991-01-15 WO PCT/EP1991/000048 patent/WO1991010520A2/de active IP Right Grant

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