Method of forming a roll body or roll mantle

Patent metadata

Field	Value
Publication number	US-11766714-B2
Application number	US-202217584721-A
Country	US
Kind code	B2
Filing date	Jan 26, 2022
Priority date	Sep 16, 2019
Publication date	Sep 26, 2023
Grant date	Sep 26, 2023

Abstract

A method for manufacturing a roll mantle or roll body for a roll line of a continuous casting apparatus that has a shaft includes casting a metal to form the roll mantle or roll body such that the roll mantle or roll body includes at least one internal channel. The roll mantle or roll body has a first end region, a second end region and a central region between the first end region and the second end region, the central region extending along at least 50% of a length of the roll mantle or roll body, and the internal channel may be formed in the central region. The internal channel may also include a pattern or projection.

First claim

What is claimed is:

1. A method for manufacturing a roll mantle or roll body for a roll line of a continuous casting apparatus comprising a shaft, the method comprising: casting a metal to form the roll mantle or roll body such that the roll mantle or roll body includes at least one internal channel,
wherein the casting comprises forming the at least one internal channel so that the at least one internal channel comprises at least one feature on at least part of an inner surface of the at least one internal channel.

2. The method according to claim 1 , wherein the at least one feature comprises a pattern.

3. The method according to claim 1 , wherein the at least one feature comprises a projection.

4. The method according to claim 1 , wherein the at least one feature is configured to:
control a flow of fluid flowing through said at least one internal channel;
create turbulence in a fluid flowing through said at least one internal channel;
provide an increased contact surface area to facilitate cooling of a said roll mantle or roll body; and/or
facilitate mounting of equipment that is to be placed in said at least one internal channel.

5. The method of claim 1 , wherein the at least one internal channel has:
a uniform or non-uniform cross-section,
a uniform or non-uniform cross-sectional area,
an extension at a constant or non-constant distance from an outer surface of the roll mantle or roll body,
a circular cross-section,
a rounded or smooth inside surface,
a conical cross-section, and/or
a partition wall.

6. The method according to claim 1 ,
wherein the at least one internal channel has a uniform cross-section.

7. The method according to claim 1 ,
wherein the at least one internal channel has a non-uniform cross-section.

8. The method according to claim 1 ,
wherein the casting comprises casting the roll mantle or roll body in a single piece.

9. A method for manufacturing a roll mantle or roll body for a roll line of a continuous casting apparatus comprising a shaft, the method comprising: casting a metal to form the roll mantle or roll body such that the roll mantle or roll body includes at least one internal channel,
wherein the at least one internal channel has at least one inlet and at least one outlet and a length from the at least one inlet to the at least one outlet, and
wherein the at least one internal channel is formed with a non-uniform cross section along the length.

10. The method according to claim 9 , wherein casting the roll mantle or roll body comprises casting the roll mantle or roll body from a corrosion resistant material.

11. The method according to claim 9 ,
wherein the roll mantle or roll body has a first end region, a second end region and a central region between said first end region and said second end region, the central region extending along at least 50% of a length of the roll mantle or roll body, and
wherein the casting comprises forming the at least one internal channel in the central region.

12. The method according to claim 9 ,
including fluidically connecting the at least one internal channel to a coolant line in the shaft.

13. The method according to claim 9 ,
wherein the casting the roll mantle or roll body comprises casting the roll mantle or roll body in a single piece.

14. The method according to claim 9 ,
wherein the at least one internal channel has an internal surface and a pattern cast in the at least one internal surface.

15. The method according to claim 9 ,
wherein the at least one internal channel has an internal surface and a projection cast in the at least one internal surface.

Assignees

• Skf Ab

Inventors

• Costa Patrik
• Johansson Mats
• Mitchell Erik

Classifications

• B22D15/005

  of rolls, wheels or the like (B22D19/16 takes precedence) · CPC title

• B22D11/128

  for removing · CPC title

• B22D11/1287 Primary

  Rolls; Lubricating, cooling or heating rolls while in use · CPC title

• B22D11/124 Primary

  for cooling · CPC title

• B22C9/28

  for wheels, rolls, or rollers {(B22D15/005 takes precedence)} · CPC title