Unlock instant, AI-driven research and patent intelligence for your innovation.

A high-strength friction material reinforced with randomly arranged long fibers and its preparation method

A friction material and long fiber technology, applied in friction linings, chemical instruments and methods, mechanical equipment, etc., can solve the problems of large solvent consumption, low strength, low efficiency, etc., and achieve the effect of avoiding environmental pollution and high strength

Active Publication Date: 2016-09-28
HUBEI FEILONG FRICTION & SEALING MATERIALS
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of short fiber reinforced friction material is difficult to provide high product strength
In wet production, although longer fibers can be used for reinforcement, but the production process requires a large amount of solvent consumption, which is not only inefficient, but also has hazards to human health and the environment during the recycling of solvents, and the fibers obtained by wet production Generally two-dimensional distribution, lower intensity in three-dimensional direction
Patent CN 100520106C proposes a braided friction material with a textile carbon fiber material as the main layer and a sub-layer composed of friction-modified particles deposited on the main layer, but the realization of the multi-layer material obtained in this patent is relatively complicated. There are also problems such as low interlayer peeling strength, and the provided friction materials cannot well meet people's needs for high-strength friction materials.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A high-strength friction material reinforced with randomly arranged long fibers and its preparation method
  • A high-strength friction material reinforced with randomly arranged long fibers and its preparation method
  • A high-strength friction material reinforced with randomly arranged long fibers and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A high-strength friction material reinforced by randomly arranged long fibers, the mass percentage of each component is: basalt fiber filament (length 150mm) 20%, liquid phenolic resin 10%, nitrile latex 2%, calcium carbonate 25% , barium sulfate 30%, graphite 5%, aluminum oxide 2%, zirconium silicate 2%, calcium sulfate 2%, antimony sulfide 2%; Its preparation method comprises the following steps:

[0030] 1) Weighing each component according to the above-mentioned proportion, stirring and mixing the weighed calcium carbonate, barium sulfate, graphite, aluminum oxide, zirconium silicate, calcium sulfate and antimony sulfide to obtain pellets;

[0031] 2) Stir and mix the liquid phenolic resin and nitrile latex evenly to obtain a flexible adhesive;

[0032] 3) Use a settling device (see figure 1 ), the granular material obtained in step 1) is sprayed into the settling chamber 4 by the particle inlet 2, the flexible binder obtained in the step 2) is sprayed into the set...

Embodiment 2

[0039] A high-strength friction material reinforced by randomly arranged long fibers, the mass percentage of each component is: basalt fiber filament (length 450mm) 30%, liquid phenolic resin 15%, nitrile latex 5%, calcium carbonate 10% , barium sulfate 10%, graphite 13%, aluminum oxide 4%, zirconium silicate 4%, calcium sulfate 4%, antimony sulfide 5%; Its preparation method comprises the following steps:

[0040] 1) Weighing each component according to the above-mentioned proportion, stirring and mixing the weighed calcium carbonate, barium sulfate, graphite, aluminum oxide, zirconium silicate, calcium sulfate and antimony sulfide to obtain pellets;

[0041] 2) Stir and mix the liquid phenolic resin and nitrile latex evenly to obtain a flexible adhesive;

[0042] 3) Use a settling device (see the structure diagram figure 1 ), the granular material obtained in step 1) is sprayed into the settling chamber 4 by the particle inlet 2, the flexible binder obtained in the step 2) ...

Embodiment 3

[0049] A high-strength friction material reinforced by randomly arranged long fibers, the mass percentage of each component is: basalt fiber filament (length 300mm) 25%, liquid phenolic resin 12%, nitrile latex 3%, calcium carbonate 20% , barium sulfate 18%, graphite 10%, aluminum oxide 3%, zirconium silicate 3%, calcium sulfate 3%, antimony sulfide 3%; Its preparation method comprises the following steps:

[0050] 1) Weighing each component according to the above-mentioned proportion, stirring and mixing the weighed calcium carbonate, barium sulfate, graphite, aluminum oxide, zirconium silicate, calcium sulfate and antimony sulfide to obtain pellets;

[0051] 2) Stir and mix the liquid phenolic resin and nitrile latex evenly to obtain a flexible adhesive;

[0052] 3) Use a settling device (see the structure diagram figure 1 ), the granular material obtained in step 1) is sprayed into the settling chamber 4 by the particle inlet 2, the flexible binder obtained in the step 2) ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
impact strengthaaaaaaaaaa
shear strengthaaaaaaaaaa
impact strengthaaaaaaaaaa
Login to View More

Abstract

The invention discloses an enhanced high-strength friction material with irregularly arranged long fibers. The enhanced friction material comprises the following components in percentage by mass: 20-30% of basalt fiber filament, 10-15% of liquid phenolic resin, 2-5% of butyronitrile latex, 10-30% of calcium carbonate, 10-30% of barium sulfate, 5-20% of graphite, 2-4% of aluminium oxide, 2-4% of zirconium silicate, 2-4% of calcium sulfate and 2-5% of antimony sulfide, wherein the length of the basalt fiber filament is 100-500 mm. According to the friction material prepared by adopting an air sedimentation method, the components are subjected to free sedimentation in air medium, and uniform solidification can be realized; the friction material can keep the original natural curly form of the basalt fiber filament and obtain the three-dimensional space random distribution long fiber state, thereby achieving the characteristics of being high in strength and strong in thermal shock resistance and vibration resistance. The invention relates to a preparation method which is simple, environment-friendly, and suitable for being popularized and applied.

Description

technical field [0001] The invention relates to a high-strength friction material used in the field of automobile and mechanical transmission and braking, in particular to a high-strength composite friction material reinforced by randomly arranged continuous long fibers and a preparation method thereof. Background technique [0002] Friction materials are widely used in the fields of automobiles and mechanical transmission and braking. In some special fields (such as mining engineering vehicles or other fields with high requirements for friction materials), the fracture and falling off of friction materials will cause instantaneous braking failure of the vehicle and cause serious hazards. Therefore, high friction material strength is required to prevent the friction material from breaking and falling off under the impact of high load, and to ensure the personal and property safety of the vehicle and occupants. [0003] At present, the friction materials used in the market c...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C09K3/14F16D69/02
Inventor 吴耀庆
Owner HUBEI FEILONG FRICTION & SEALING MATERIALS