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Disc brake pad with low braking torque fluctuation and preparation method thereof

A disc braking and braking torque technology, applied in the field of auto parts, can solve the problems of large braking torque fluctuation, low braking torque fluctuation, unfriendly brake disc, etc. Improved fit, improved stability

Active Publication Date: 2018-10-19
SHANDONG GOLD PHOENIX
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the shortcomings of the prior art described above, the purpose of the present invention is to provide a disc brake pad with low braking torque fluctuation and its preparation method, which overcomes the large fluctuation of braking torque and compression Poor characteristics, unfriendly to brake discs, etc.

Method used

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  • Disc brake pad with low braking torque fluctuation and preparation method thereof
  • Disc brake pad with low braking torque fluctuation and preparation method thereof
  • Disc brake pad with low braking torque fluctuation and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Raw material composition and mass percentage of disc brake pads:

[0046] 14% phenolic resin, 8% aramid pulp, 6% mineral fiber, 2% brass fiber, 7% friction powder, 2% aluminum oxide, 4% synthetic graphite, 7% granular coke, 4% ferrous sulfide, vulcanized Antimony 2%, potassium titanate 7%, barite 30%, nitrile rubber 7%, wherein, nitrile rubber includes micro-crosslinked nitrile rubber, semi-crosslinked nitrile rubber, fully cross-linked nitrile rubber; Crosslinked nitrile rubber accounts for 25% of the total amount of nitrile rubber, semi-crosslinked nitrile rubber accounts for 40% of the total amount of nitrile rubber, and fully crosslinked nitrile rubber accounts for 35% of the total amount of nitrile rubber.

[0047] The disc brake pad preparation method comprises the following steps:

[0048] (1) Three-step mixing: the first step of mixing: first put aramid pulp, alumina and barite in the high-speed mixer, and stir for 5 minutes; the second step of mixing: then put...

Embodiment 2

[0070] Raw material composition and mass percentage of disc brake pads:

[0071] 7% phenolic resin, 11% aramid pulp, 5% mineral fiber, 2.5% brass fiber, 3% friction powder, 3% aluminum oxide, 4.5% synthetic graphite, 4% granular coke, 7% ferrous sulfide, Antimony sulfide 5%, potassium titanate 5%, barite 32%, nitrile rubber 11%, wherein, nitrile rubber includes micro-crosslinked nitrile rubber, semi-crosslinked nitrile rubber, fully cross-linked nitrile rubber, Slightly crosslinked nitrile rubber accounts for 50% of the total amount of nitrile rubber, semi-crosslinked nitrile rubber accounts for 15% of the total amount of nitrile rubber, and fully crosslinked nitrile rubber accounts for 35% of the total amount of nitrile rubber.

[0072] The disc brake pad preparation method comprises the following steps:

[0073] (1) Three-step mixing: the first step of mixing: first put aramid pulp, alumina and barite in the high-speed mixer, and stir for 6 minutes; the second step of mixin...

Embodiment 3

[0095] Raw material composition and mass percentage of disc brake pads:

[0096]5% phenolic resin, 10.5% aramid pulp, 5.5% mineral fiber, 3% brass fiber, 5% friction powder, 3% aluminum oxide, 5% synthetic graphite, 10% granular coke, 6% ferrous sulfide, vulcanized Antimony 3%, potassium titanate 10%, barite 31%, nitrile rubber 3%, wherein, nitrile rubber includes micro-crosslinked nitrile rubber, semi-crosslinked nitrile rubber, fully cross-linked nitrile rubber; Crosslinked nitrile rubber accounts for 30% of the total amount of nitrile rubber, semi-crosslinked nitrile rubber accounts for 30% of the total amount of nitrile rubber, and fully crosslinked nitrile rubber accounts for 40% of the total amount of nitrile rubber.

[0097] The processing method of the disc brake pad with low braking torque fluctuation comprises the following steps:

[0098] (1) Three-step mixing: the first step of mixing: first put aramid pulp, alumina and barite in the high-speed mixer, and stir for...

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Abstract

The invention discloses a disc-type brake pad with low brake moment fluctuation and a preparation method thereof, and belongs to the technical field of auto parts. The disc-type brake pad comprises the following raw materials in percent by mass: 5%-14% of phenolic resin, 8%-11% of aramid fiber pulp, 5%-6% of mineral fiber, 2%-3% of brass fiber, 3%-7% of friction powder, 2%-3% of alumina, 4%-5% of synthetic graphite, 4%-10% of coke particles, 4%-7% of ferrous sulfide, 2%-5% of antimony sulfide, 5%-10% of potassium titanate, 30%-36% of barite and 3%-11% of nitrile rubber, wherein the nitrile rubber contains micro crosslinked nitrile rubber, semi crosslinked nitrile rubber and fully crosslinked nitrile rubber. According to the invention, the synergistic effect of nitrile rubber powder with different crosslinking degrees is utilized, and the brake moment fluctuation of the brake pad is stabilized effectively, thereby reducing the possibility of brake jitter caused by the brake pad and reducing the incidence of brake noise.

Description

technical field [0001] The invention relates to the technical field of auto parts, in particular to a disc brake pad with low braking torque fluctuation and a preparation method thereof. Background technique [0002] Disc brake pads for automobiles refer to the disc brakes installed on the wheels of automobiles. They are the most critical safety parts in the automobile braking system. The brake pads play a decisive role in the braking effect of automobiles. [0003] The root cause of the shaking of the steering wheel caused by braking when the car is braking is that the fluctuation of the braking torque is too large during braking. In order to control the excitation source, it is necessary to reduce the fluctuation of the braking torque. In addition, considering the compression characteristics of disc brake pads, in the existing systems of multiple disc brake pads, the method of increasing the compression ratio is often used to improve the jitter phenomenon. [0004] At pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K3/14F16D69/02
CPCC09K3/149F16D69/023
Inventor 甄明晖刘毅仇溢种详远
Owner SHANDONG GOLD PHOENIX