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Thermostructural composite roller

A technology of synthetic material and thermal structure, applied in the direction of roller table, roller, roller column, etc., can solve the problems of inability to guarantee the roller and high cost

Inactive Publication Date: 2009-02-04
SNECMA PROPULSION SOLIDE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The cost of this solution is high and it cannot guarantee that the shape of the roller will not be deformed under all temperature conditions

Method used

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  • Thermostructural composite roller
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Examples

Experimental program
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Embodiment Construction

[0029] A particular but not exclusive field of application of the invention is continuous annealing installations or lines in which sheet metal strips are processed. Figure 1 shows a roll 100 constituting a specific embodiment of the invention which can equally well be used for conveying, guiding or shaping strips of metal sheet in an annealing line.

[0030] As an axial support element for the roller 100, the roller 100 comprises a mandrel 110, the ends of which extend through an axle 111 or 112, respectively. In this example, the roll 100 is arranged in a housing 10 of the lehr. Shafts 111 and 112 are supported by bearings 11 and 12 of housing 10, respectively. Either or both of the shafts 111, 112 may also be connected to a rotary drive (not shown).

[0031] The roller 100 also comprises a cylindrical shell 120 forming the outer wall of the roller. The cylindrical housing 120 consists of an axisymmetric part 121 made of thermostructural composite material which has very ...

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PUM

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Abstract

The invention relates to a roller comprising an axial support element (110) made of metal and comprising at least two shafts (111,112), and a cylindrical shell (120) made of thermostructural composite material. In order to compensate for differential expansion between the metal axial support element and the cylindrical shell made of thermostructural composite material, radial clearance is provided with the axial support element and the cylindrical shell.

Description

technical field [0001] The invention relates to the field of rollers for conveying, guiding or shaping industrial products such as paper, steel or chrome. More specifically, the present invention relates to rolls that will be subjected to high temperatures and relatively steep temperature gradients. Background technique [0002] It is common practice in the steel industry or the metal industry to use rolls to form flat products such as steel or aluminum sheets. Rollers used in this type of industry are generally made of high temperature resistant steel material, as they are able to withstand very high thermomechanical loads, as occurs, for example, in chambers for continuous heat treatment (annealing) of metal sheets, Among them, the mechanical force exceeds several tons, and the temperature can reach 850°C to 1000°C. Furthermore, there is a relatively steep temperature gradient between the roller and the metal plate. At the entrance to the chamber, the first rollers are ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16C13/00
CPCB65H2404/1342B65H2404/13171B65H2404/113B65H27/00F16C13/00B21B27/032B21B2003/001B65G39/02B65G13/02B65G39/09
Inventor J-P·莫米
Owner SNECMA PROPULSION SOLIDE