Recipe of brake disk material with metal sulfide

A metal sulfide, brake pad technology, applied in friction linings, mechanical equipment, etc., can solve the problem of low-frequency noise not being effectively solved, reduce low-frequency noise, eliminate the probability of low-frequency noise, and improve surface conditions. Effect

Inactive Publication Date: 2007-06-06
信义集团公司
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  • Summary
  • Abstract
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AI Technical Summary

Problems solved by technology

The noise problem has always been a technical difficulty for brake pads. Although after some technical research, the high-frequency noise problem of 1-16KHz has been solved well by using damping pads or slotting or grinding on the brake pads. , but for the low-frequency

Method used

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Examples

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Comparison scheme
Effect test

Embodiment Construction

[0009] According to the above formula design, process samples for testing according to the following production process: mixing materials - hot pressing - heat treatment - grinding - painting - installation accessories - printing labels - packaging

[0010] test results

[0011] FAW-Volkswagen Bora's original matching brake pads are metal-less friction pads produced by Germany's TMD company. During use, the occurrence rate of low-frequency noise is more than 80%. After using the brake pads processed by formula A of the present invention, use them for two months. The mileage is 15,000 kilometers, and the occurrence rate of low-frequency noise is less than 10%.

[0012] FAW-Volkswagen A6 original matching brake pad is a metal-less friction pad produced by TMD Company in Germany, and the occurrence rate of low-frequency noise is more than 80% during use. After using the brake pad processed by formula B of the present invention, use it for two months. The mileage is 20,000...

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Abstract

The present invention is recipe of brake disk material with metal sulfide. The brake disk material consists of adhesive of phenolic resin, butyronitrile modified phenolic resin, silicon modified phenolic resin or their composition 5-10 wt%; reinforcing material of steel wool fiber, aramid fiber pulp or composition of ceramic fiber and aramid fiber pulp 20-30 wt%; grinding material of ferric oxide, magnesia, alumina and friction powder composition 10-20 wt%; lubricant of inorganic lubricant and metal sulfide composition or organic lubricant and metal sulfide composition 15-25 wt%; and stuffing of barium sulfate, calcium carbonate and magnesia composition 30-50 wt%. The brake disk made of the material can form one layer of lubricating film in the friction interface without forming hard point and has greatly reduced low frequency noise.

Description

Technical field: [0001] Process for the production of brake pads in the field of the automotive industry. Background technique: [0002] The main components of friction materials in brake pads are adhesives, reinforcing fibers, abrasives and lubricants. At present, the preparation of brake pads mainly uses graphite and molybdenum disulfide as lubricants. The processing technology is as follows: mixing—— Hot pressing—heat treatment—grinding—painting—installation accessories—printing—packaging. The noise problem has always been a technical difficulty for brake pads. Although after some technical research, the high-frequency noise problem of 1-16KHz has been solved well by using damping pads or slotting or grinding on the brake pads. , but for the low-frequency noise of 50-500Hz, especially for automatic transmission vehicles, the low-frequency noise generated under low-temperature or high-temperature environmental conditions and when starting has not been effectively resolved...

Claims

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Application Information

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IPC IPC(8): C08K5/14F16D69/02
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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