# US 8,770,004 B2 · Rolling mill roll and rolling mill machine

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 8,770,004 B2
- Document ID: US8770004B2
- Status: Granted
- Kind: B2
- Application number: 12/451,615
- Filed: 2008-05-16
- Published: 2010-07-29
- Granted: 2014-07-08
- Earliest claimed: 2007-05-21
- Assignees: Mitsubishi Materials Corporation
- Applicants: Koichi Yuri; Mitsuhiro Takatsuki; Eiji Ogura
- Inventors: Koichi Yuri; Mitsuhiro Takatsuki; Eiji Ogura
- Web page: https://patentgrep.com/patent/US8770004B2

## CPC

- B21B 27/035: {Rolls for bars, rods, rounds, tubes, wire or the like}
- B21B 27/00: Rolls, {roll alloys or roll fabrication}(shape of working surfaces required by special processes B21B1/00); Lubricating, cooling or heating rolls while in use
- 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

The present invention is to provide a rolling mil roll including a rolling mill ring and a metal base in which a tensile stress applied to the rolling mill ring located along the outer circumferential face side is reduced; and then cracks thereon are prevented from occurring. The rolling mill roll 10 includes: the rolling mill roll 11 made of cemented carbide having rolling sections 13 on its outer circumferential face 11a; and the metal base 12 located on the inner circumferential face of the rolling mill roll 11. The circumferential interface 14, where the rolling mill ring 11 and the metal base 12 face each other, is fixed radially around its axis L by a contact pressure derived from a fitting section, and also is bound with an adhesive agent M.

## Claims

### Claim 1

A rolling mill roll comprising:
a rolling mill ring made of cemented carbide having one or more rolling mill sections for milling work piece on its outer circumferential face;
a ring shaped metal base located in an inner circumferential region of the rolling mill ring below the rolling mill ring on a line with the rolling mill ring perpendicular to a rotating axis of the rolling mill ring; and
a tapered sleeve below the ring shaped metal base on said line perpendicular to the rotating axis;
wherein a circumferential interface, where the rolling mill ring and the metal base face each other,
is fixed radially around its axis by a contact pressure derived from a fitting section, and also
is bound with an adhesive agent,
wherein, the circumferential interface is a tapered face which slopes to the axis and is fixed with the contact pressure by wedging the metal base into the rolling mill ring, and
wherein, a taper angle, at which the circumferential interface slops to the axis, is in the range of 0°10′ to 2°00′.

### Claim 2 (depends on 1)

A rolling mill roll according to claim 1, wherein,
the agent is a methacrylate resin type adhesive agent.

### Claim 3

A rolling mill machine comprising:
a rolling mill roll comprising:
a rolling mill ring made of cemented carbide having one or more rolling mill sections for milling work piece on its outer circumferential face;
a ring shaped metal base located in an inner circumferential region of the rolling mill ring below the rolling mill ring on a line with the rolling mill ring perpendicular to a rotating axis of the rolling mill ring; and
a tapered sleeve below the ring shaped metal base on said line perpendicular to the rotating axis;
wherein a circumferential interface, where the rolling mill ring and the metal base face each other,
is fixed radially around its axis by a contact pressure derived from a fitting section, and also is bound with an adhesive agent,
wherein, the circumferential interface is a tapered face which slopes to the axis and is fixed with the contact pressure by wedging the metal base into the rolling mill ring, and
wherein, a taper angle, at which the circumferential interface slops to the axis, is in the range of 0°10′ to 2°00′;
wherein the rolling mill roll is mounted coaxially on the outer circumferential face of the tapered sleeve; and
wherein the rolling mill machine further comprises a tapered shaft section below the tapered sleeve which rotates on its axis,
wherein the tapered sleeve has a tapered inner circumferential face, and
the tapered sleeve is mounted on the tapered shaft section.

### Claim 4 (depends on 3)

A rolling mill machine according to claim 3, wherein
the adhesive agent is a methacrylate resin type adhesive agent.