Formula of material for disk type brake sheets

A technology of disc brake pads and formulations, which is applied in the field of material formulation of disc brake pads, to achieve the effect of eliminating rust problems and solving noise problems

Inactive Publication Date: 2007-05-09
信义集团公司
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention finds out the causes of noise, ash falling and rusted hubs after comprehensively analyzing the technical characteristics and application effects of the existing friction materials, and proposes a new formula system developed by using new materials and technologies, that is, disc brake pads. The material formula solves the problems existing in the existing formula, so that the ash fall level can reach level 4 or above

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0009] test results:

[0010] The B5 automobile brake pads were compared with the original matching metal-less brake pads produced by Germany’s TMD company. The test results of this ceramic formula in this model showed that the ash fall level was 4, and the ash fall of TMD’s metal-less brake pads The levels are both level 2. The ceramic formula and the matching metal-less formula brake pads have no high-frequency noise, but TMD’s metal-less brake pads have a low-frequency noise occurrence rate of more than 90% on these two models, and ceramic formula brakes 4% chance of occurrence of low-frequency noise on this model

[0011] Shanghai Volkswagen POLO car brake pads were compared with the original matching metal-less brake pads produced by Germany's TMD company. The ash falling level of the brake pads is both level 2. The ceramic formula and the two supporting metal-less formula brake pads have no high-frequency noise, but TMD's metal-less brake pads have a low-frequenc...

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PUM

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Abstract

This invention relates to the formulation of a disk-type brake material, which is composed of: adhesive 5-10 wt.%, reinforcing material 20-30 wt.%, grinding agent 30-50 wt.%, lubricating agent 10-20 wt.%, and filler 20-30 wt.%. The adhesive is one or two of phenol formaldehyde resin, nitrile-modified phenol formaldehyde resin and Si-modified phenol formaldehyde resin. The reinforcing material is a composition of steel cotton fibers and aramid pulp or a composition of ceramic fibers and aramid pulp. The grinding agent is a composition of Fe2O3, MgO, and Al2O3 and friction powder. The lubricating agent is a composition of inorganic lubricating agent and metal sulfide or a composition of organic lubricating agent and metal sulfide. The filler is a composition of BaSO4, CaCO3 and MgO. The brake can form a layer of lubricating film on the friction interface, thus can eliminate hard particles on the surface and occurring probability of low-frequency noise and decrease low-frequency noise to below 10%.

Description

Technical field: [0001] A method for preparing a brake pad in the field of the automobile industry, especially a material formulation of a disc brake pad for a passenger car. Background technique: [0002] material name weight percentage semi metal less metal resin 5-10 5-10 steel wool fiber, iron powder 40-60 15-30 abrasive 10-20 15-25 lubricant 15-25 15-25 other materials 15-30 25-40 [0003] serious more serious medium slight no dust 1 2 3 4 5 Invention content: [0004] The present invention finds out the causes of noise, ash falling and rusted hubs after comprehensively analyzing the technical characteristics and application effects of the existing friction materials, and proposes a new formula system developed by using new materials and technologies, that is, disc brake...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J5/14F16D69/02C08L61/14C08K7/02C08K3/00
Inventor 杜东升朱太庚李怀定白克江张永朋
Owner 信义集团公司
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