Device and method for the production of a metallic strip

Patent metadata

Field	Value
Publication number	US-10584397-B2
Application number	US-201715591604-A
Country	US
Kind code	B2
Filing date	May 10, 2017
Priority date	Jul 14, 2010
Publication date	Mar 10, 2020
Grant date	Mar 10, 2020

Abstract

A device for the production of a metallic strip using a rapid solidification technology is specified, which device includes a movable heat sink with an external surface onto which a melt is poured and on which the melt solidifies to produce the strip, and which device includes a rolling device which can be pressed against the external surface of the movable heat sink while the heat sink is in motion.

First claim

The invention claimed is:

1. A method for production of a metallic strip using a rapid solidification technology, comprising:
providing a melt,
providing a heat sink with an external surface,
pouring the melt onto the external surface of the heat sink while the heat sink is moving, the melt solidifying on the external surface to form a strip, and
pressing a rolling device against the external surface of the heat sink while the heat sink is moving, wherein the rolling device is a rotatable burnishing roller, the rotatable burnishing roller continuously contacting the external surface of the heat sink while the melt is poured onto the external surface, which smooths by burnishing the external surface of the heat sink.

2. The method according to claim 1 , wherein the pressing of the rolling device against the external surface of the heat sink is continuous while the melt is poured onto the external surface of the heat sink.

3. The method according to claim 1 , wherein the pressing of the rolling device against the external surface of the heat sink continuously reduces a roughness of the external surface of the heat sink while the melt is poured onto the external surface of the heat sink.

4. The method according to claim 1 , wherein the pressing of the rolling device against the external surface of the heat sink also occurs before the melt is poured onto the external surface of the heat sink.

5. The method according to claim 1 , wherein the rotatable burnishing roller is pressed against the external surface of the heat sink with a pressure sufficient to work the external surface of the heat sink while the heat sink is moving.

6. The method according to claim 1 , wherein the rotatable roller is driven in a first direction of rotation and the heat sink is driven in a second direction of rotation while moving, the first direction of rotation being opposed to the second direction of rotation.

7. The method according to claim 1 , further comprising moving the rolling device across the external surface of the heat sink parallel to the axis of rotation of the heat sink, so that the external surface of the heat sink is contacted spirally.

8. The method according to claim 1 , wherein the strip is solidified and further comprising taking up the solidified strip continuously on a reel.

9. The method according to claim 1 wherein the melt comprises:
T a M b , wherein 70 atomic %≤a≤85 atomic % and 15 atomic %≤b≤30 atomic %, T being one or more of the elements Fe, Co, Ni, Mn, Cu, Nb, Mo, Cr, Zn, Sn and Zr, and M being one or more of the elements B, Si, C and P, or from
Fe a Cu b M c M′ d M″ e Si f B g ,

M being one or more of the elements from the group of the IVa, Va, VIa elements or the transition metals,
M′ being one or more of the elements Mn, Al, Ge and the platinum elements, and
M″ being Co and/or Ni, wherein
a+b+c+d+e+f+g=100 atomic % and
0.01≤b≤8,
0.01≤c≤10,
0≤d≤10,
0≤e≤20,
10≤f≤25,
3≤g≤12 and
17≤f+g≤30.

Assignees

• Vacuumschmelze Gmbh & Co Kg

Inventors

• Schulz Robert

Classifications

• C22C2200/04

  Nanocrystalline · CPC title

• B22D11/112

  by accelerated cooling · CPC title

• C21D9/52 Primary

  for wires; for strips {; for rods of unlimited length} · CPC title

• B22D11/0682

  by cooling the casting wheel · CPC title

• Y10T428/24355

  Continuous and nonuniform or irregular surface on layer or component [e.g., roofing, etc.] · CPC title