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Method for applying a friction covering with a screen printing procedure

A friction lining and blank technology, which is applied in the field of friction lining bearing parts, can solve the problems of friction lining defects, material distribution problems, small net weight of materials, etc.

Inactive Publication Date: 2009-03-04
LUK LAMELLEN & KUPPLUNGSBAU BETEILIGUNGS KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] But if only a thin friction lining of a millimeter or less is desired, the net material weight is so low that material distribution problems arise during warm or hot pressing and the applied friction lining is often defective

Method used

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  • Method for applying a friction covering with a screen printing procedure
  • Method for applying a friction covering with a screen printing procedure

Examples

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Embodiment Construction

[0034] Part 1 for a wet clutch used in a motor vehicle is produced by the method according to the invention (see figure 1 ), which includes a metal sheet carrier 2 and includes friction linings 3 on both sides of the sheet carrier 2 . The disk carrier here has a thickness 5 of 2.5 mm, and the friction disk lining has a maximum thickness 4 of 0.75 mm.

[0035] The friction lining 3 has structures 6 through which an oil flow is ensured during operation of the wet clutch, which oil flow also contributes to cooling the clutch.

[0036] In a first step, a highly viscous, thixotropic blank is produced as a friction lining blank. For this purpose, the powdered resin is dissolved in a suitable solvent mixture.

[0037] To ensure controlled drying, the solvent mixture comprises at least one solvent with a low boiling point and one solvent with a high boiling point. This solvent mixture is a mixture of methyl ethyl ketone (MEK, butanone-2) and ethoxypropyl acetate (EPA). This can be...

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Abstract

The invention relates to a method for applying friction plate lining especially used in wet clutch. The method comprises the following steps: dissolving resin in solvent for manufacturing friction plate lining blank material; arranging filling mould on a carrier surface; applying the friction plate lining blank material on the carrier surface by means of the filling mould; removing the filling mould; and drying and hardening the friction plate lining blank material.

Description

technical field [0001] The invention relates to the application of a friction lining, in particular for a clutch, to a friction lining carrier part. Background technique [0002] For clutches, especially wet clutches, disc carriers are used in the prior art, on which the friction linings are applied on one side or on both sides. For this purpose, the friction lining blank is warmly or hotly pressed onto the metallic disk carrier, whereby the friction lining blank remains attached to the disk carrier. Subsequently, the binder present in the friction lining blank is cured in a furnace, whereby the friction lining acquires its desired hardness. [0003] However, if only a thin friction lining of a millimeter or less is desired, the net material weight is so low that material distribution problems arise during warm or hot pressing and the applied friction lining often has defects. [0004] Furthermore, in wet clutches it is desirable that the friction lining surfaces have stru...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J5/14
CPCF16D2250/00F16D13/64
Inventor C·维亚特雷克
Owner LUK LAMELLEN & KUPPLUNGSBAU BETEILIGUNGS KG
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