# US 2015/0144288 A1 · Continuously operating strip casting and rolling system

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- Number: US 2015/0144288 A1
- Document ID: US20150144288A1
- Status: Published application
- Kind: A1
- Application number: 14/412,604
- Filed: 2013-07-03
- Published: 2015-05-28
- Earliest claimed: 2012-07-03
- Assignees: SMS Siemag Aktiengesellschaft
- Applicants: Sms Siemag AG
- Inventors: Hellfried Eichholz; Karl-Heinz Spitzer; Sven Klawiter; Rune Schmidt-Jürgensen
- Web page: https://patentgrep.com/patent/US20150144288A1

## CPC

- B22D 11/1206: {for plastic shaping of strands (rolling mills B21B1/46)}
- B21B 1/463: {in a continuous process, i.e. the cast not being cut before rolling}
- B22D 11/041: for vertical casting (B22D11/043, B22D11/049 - B22D11/059 take precedence)
- B22D 11/0631: {formed by a travelling straight surface, e.g. through-like moulds, a belt}
- B22D 11/143: {for horizontal casting}
- B22D: CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES (shaping of plastics or substances in a plastic state B29C; metallurgical processing, selection of substances to be added to metal C21, C22)
- B21B: ROLLING OF METAL (auxiliary operations used in connection with metal-working operations covered in B21, see B21C; bending by rolling B21D; manufacture of particular objects, e.g. screws, wheels, rings, barrels, balls, by rolling B21H; pressure welding by means of a rolling mill B23K20/04)

## Abstract

A continuously operating casting and rolling system with a strip tension control includes a casting unit having a melt-containing feed vessel with a horizontal casting channel and a discharge region in the form of a casting nozzle, and a primary cooling zone with two guide rolls and a circulating cooled casting strip and at least one downstream rolling unit having at least two drivable rollers. In order to minimize the tension on the cast strip, the casting unit and the subsequent rolling unit are mechanically decoupled, wherein for the decoupling at least one driver unit having at least two drivable rollers for driving the strip is arranged between the casting belt and the rolling unit.

## Claims

### Claim at position 1

1-11. (canceled)

### Claim 12

A continuously operating strip-casting and rolling system with strip tension control for a strip, comprising
a casting unit having a melt-containing feed vessel with a horizontally disposed casting trough and a discharge area configured as a casting nozzle and a primary cooling zone comprising two guide pulleys and a revolving cooled casting belt, and at least one downstream rolling unit comprising at least two drivable rollers, and
at least one driver unit comprising at least two drivable rollers arranged between the casting belt and the at least one downstream rolling unit for driving the strip, wherein the at least one driver unit mechanically decouples the casting unit and the at least one downstream rolling unit so as to minimize tension applied to the cast strip,
wherein the at least one driver unit is eccentrically mounted for rotation, wherein the at least two drivable rollers are during a casting and rolling process displaceable substantially parallel to a longitudinal axis of the strip in a direction identical to a casting direction or in opposition to the casting direction.

### Claim 13 (depends on 12)

The device of claim 12, wherein the driver units are arranged in a frame and the individual driver units are supported against the frame by way of force measuring devices.

### Claim 14 (depends on 12)

The device according to claim 12, wherein drives that drive the casting belt and drives that drive the driver unit are mechanically coupled.

### Claim 15 (depends on 14)

The device of claim 14, wherein the drives that drive the casting belt and the drives that drive the driver unit are mechanically coupled by way of a superposition gear.

### Claim 16 (depends on 12)

The device of claim 12, further comprising a lifting device interconnected between the at least one driver unit and the at least one downstream rolling unit, said lifting device lifting the strip for decoupling the at least one driver unit and the at least one downstream rolling unit.

### Claim 17 (depends on 16)

The device according to claim 16, wherein the lifting device is constructed as a self-cushioning unit.

### Claim 18 (depends on 7)

The device according to claim 7, wherein the self-cushioning unit is a pneumatic cylinder.

### Claim 19 (depends on 12)

The device of claim 12, wherein the at least two drivable rollers of the rolling unit comprise shock absorbers configured to cushion a touchdown on the strip.

### Claim 20 (depends on 19)

The device of claim 19, wherein the shock absorbers are adjustable hydraulic shock absorbers configured to be switched off.

### Claim 21 (depends on 14)

The device of claim 14, wherein the drives that drive the casting belt and the drives that drive the driver unit comprise direct current motors.