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High-performance paper-based friction material and its preparation process

A paper-based friction material, high-performance technology, used in synthetic cellulose/non-cellulose material pulp/paper, paper, papermaking, etc., can solve problems such as poor stability of friction coefficient, and achieve stable friction performance and durability. Excellent effect with little thermal decay

Active Publication Date: 2015-09-23
黄山奔马集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Paper-based friction materials are mainly composed of fibers, binders, friction modifiers, fillers, etc., but the friction coefficient stability of existing paper-based friction materials is not good

Method used

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  • High-performance paper-based friction material and its preparation process
  • High-performance paper-based friction material and its preparation process
  • High-performance paper-based friction material and its preparation process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] 10 parts by weight of carbon fibers with a diameter of 5-8 μm, 20 parts by weight of modified phenolic resin, 7 parts by weight of powdered nitrile rubber, 8 parts by weight of graphite, 8 parts by weight of alumina, 3 parts by weight of iron yellow, and 25 parts by weight of diatoms 3 parts by weight of soil and friction modifier, stirred at a high speed of 1000-1500r / min for 5 minutes to make it evenly mixed, mixed with 19 parts by weight of base paper and stirred with 4200 parts by weight of water in the pulp tank for 30 minutes, and poured into the beater after stirring evenly. Beat the pulp for 30 minutes to form a uniform slurry, and pass the slurry through the automatic papermaking forming drying line at a constant speed to make a uniform and flat dry paper with a thickness of 2mm. Put the bad paper on the mesh support board and immerse it in the glue solution with a concentration of 0.85g / cm 3 Put it in the glue box for 13 minutes, put it into the oven for dryin...

Embodiment 2

[0039] 15 parts by weight of carbon fiber with a diameter of 5-8 μm, 15 parts by weight of modified phenolic resin, 5 parts by weight of powdered nitrile rubber, 10 parts by weight of graphite, 5 parts by weight of alumina, 5 parts by weight of iron yellow, 20 parts by weight of diatom Stir 3 parts by weight of soil and friction modifier at a high speed of 1000-1500r / min for 5 minutes to make it evenly mixed, mix it with 25 parts by weight of base paper and mix it with 4500 parts by weight of water in the slurry tank for 32 minutes, and pour it into the beater for beating after stirring evenly It takes 32 minutes to become a uniform slurry, and the slurry is passed through the automatic papermaking forming drying line at a uniform speed to make a uniform and flat dry paper with a thickness of 2.5mm. Put the bad paper on the mesh pallet, immerse it in the glue box with a glue concentration of 0.9 for 15 minutes, put it in the oven to dry after the glue is completely soaked, and ...

Embodiment 3

[0041] 8 parts by weight of carbon fiber with a diameter of 5-8 μm, 18 parts by weight of modified phenolic resin, 10 parts by weight of powdered nitrile rubber, 5 parts by weight of graphite, 10 parts by weight of alumina, 4 parts by weight of iron yellow, 30 parts by weight of diatom 3 parts by weight of soil and friction modifier, stirred at a high speed of 1000-1500r / min for 5 minutes to mix evenly, mixed with 15 parts by weight of base paper and 5000 parts by weight of water and stirred in the slurry tank for 30-35 minutes, and poured into the beater after stirring evenly , beating for 35 minutes to form a uniform slurry, and pass the slurry through the automatic papermaking forming drying line at a constant speed to make a uniform and flat dry paper with a thickness of 3mm. Put the bad paper on the mesh pallet, immerse it in the glue box with a glue concentration of 0.95 for 15±2min, put it into the oven to dry after the glue is completely soaked, and use an equal high pr...

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Abstract

The invention discloses a high-performance paper-based friction material and a preparation process thereof. The friction material comprises base paper, carbon fiber, modified phenolic resin, powder nitrile rubber, graphite, aluminum oxide, ferrite yellow, diatomite and a friction adjusting agent. Compared with the prior art, as for the friction material, the static friction coefficient achieves 0.18, the dynamic friction coefficient achieves 0.16, the dynamic and the static ratios are close to each other, the heat fading is small after 1000 times of brake running-in, and the difficult problems of low dynamic and static friction coefficients, insufficient transfer torque and easiness in causing heat fading and heat wear of the ordinary paper-based friction material can be well solved.

Description

Technical field: [0001] The invention relates to a friction material and a preparation process thereof, in particular to a high-performance wet paper-based friction material with high dynamic and static friction coefficient, excellent durability and heat resistance, and stable friction performance and a preparation process thereof. Background technique: [0002] Paper-based friction material is a key functional material mainly used in wet clutches and brakes of various vehicles and construction machinery, especially as a friction plate material for wet clutches in automatic transmissions of automobiles, it has broad application prospects. Paper-based friction materials are mainly composed of fibers, binders, friction performance regulators, fillers, etc., but the friction coefficient stability of existing paper-based friction materials is not good. Invention content: [0003] The first technical problem to be solved by the present invention is to provide a high-performance...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21H13/50D21H17/68D21H17/67D21H17/66D21H17/00D21H17/48D21H17/37D21H21/14
Inventor 邵新安华少杰
Owner 黄山奔马集团有限公司