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Ceramic-based friction material and method for preparing same

A friction material and ceramic-based technology, applied in the field of ceramic-based friction materials and their preparation, can solve the problems of unstable friction performance, easy scratching of friction pairs, poor braking flexibility, etc., and achieve moderate friction coefficient and braking noise. Low, smooth braking effect

Active Publication Date: 2010-09-15
YUTIAN COUNTY JUNDA AUTOMOBILE PARTS MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0017] 1 Friction performance is unstable
[0018] 2 short service life
[0019] 3 Noisy
[0020] 4 It is easy to scratch the frictional couple and cause accidents
[0021] 5 Braking flat flexibility is poor

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] 1. Preheat and disperse the potassium titanate whiskers until the potassium titanate whiskers have a diameter of 1.5um and a length of 100um.

[0053] Mix the raw materials according to the following proportions, and the particle size of the ingredients is mostly above 200 mesh:

[0054] Thermoplastic phenolic resin or its modified products 6kg; potassium titanate whiskers 8kg; attapulgite 5kg; expanded vermiculite 4kg; nitrile rubber powder 4kg; chromite powder 5kg; ceramic fiber 12kg; coke powder 4kg; barium sulfate 14kg ; Artificial graphite 6kg; flake graphite 9kg; organic friction powder 8kg; sericite 3kg; alumina 1kg; copper fiber 3kg; colorant 4kg; organic fiber 0.5kg.

[0055] The organic friction powder is cashew nut oil friction powder; the colorant is iron yellow, iron red or iron black; and the organic fiber is aramid fiber.

[0056] 2. Cold press forming: the pressure is 180kg / cm 2 .

[0057] 3. Hot pressing molding: temperature is 155°C, pressure is 230...

Embodiment 2

[0062] 1. Preheat and disperse the potassium titanate whiskers until the potassium titanate whiskers have a diameter of 0.2um and a length of 10um.

[0063] Mix the raw materials according to the following proportions, and the particle size of the ingredients is mostly above 200 mesh:

[0064] 8kg of modified thermoplastic phenolic resin; 7kg of potassium titanate whiskers; 6kg of attapulgite; 3kg of expanded vermiculite; 5kg of nitrile rubber powder; 4kg of chromite powder; 13kg of ceramic fiber; Graphite 5kg; flake graphite 10kg; organic friction powder 7kg; sericite 4kg; alumina 0.5kg; copper fiber 4kg; colorant 3kg; organic fiber 1kg.

[0065] The organic friction powder is cashew nut oil friction powder; the colorant is iron yellow, iron red or iron black; and the organic fiber is aramid fiber.

[0066] 2. Cold press forming: the pressure is 200kg / cm 2 .

[0067] 3. Hot pressing: temperature is 160℃, pressure is 250kg / cm 2 , the pressing speed is 1 mm / min.

[0068] 4...

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Abstract

The invention discloses a ceramic-based friction material and a method for preparing the same. The ceramic-based friction material consists of the following raw materials in part by weight: 6 to 8 parts of thermal plasticity phenolic resin or modifier thereof, 7 to 8 parts of potassium titanate whisker, 5 to 6 parts of attapulgite clay, 3 to 4 parts of expanded vermiculite, 4 to 5 parts of butyronitrile rubber powder, 4 to 5 parts of chromite powder, 12 to 13 parts of ceramic fiber, 3 to 4 parts of powdered coke, 14 to 15 parts of barium sulfate, 5 to 6 parts of artificial graphite, 9 to 10 parts of scale graphite, 7 to 8 parts of organic rubbing powder, 3 to 4 parts of sericite, 0.5 to 1 part of aluminum oxide, 3 to 4 parts of copper fiber, 3 to 4 parts of coloring agent and 0.5 to 1 part of organic fiber. The preparation method comprises the following steps of: material blending, cold press moulding, hot press moulding, polishing and curing treatment. The ceramic-based friction material has the advantages of high and stable frictional property, suitable frictional coefficient, low wear rate, low hardness, no damage to friction coupling materials, low braking noise, and extremelylow environmental pollution; and in use, the ceramic-based friction material has the advantages of smooth braking, gentleness, comfortability, safety and reliability.

Description

technical field [0001] The invention relates to a ceramic-based friction material and a preparation method thereof. Background technique [0002] Friction material is a component material used in power machinery that relies on friction to perform braking and transmission functions. [0003] Any mechanical equipment and various moving vehicles must have braking or transmission devices. Friction material is a critical component on this braking or transmission. Its main function is to absorb or transmit power through friction. For example, the clutch plate transmits power, and the brake plate absorbs kinetic energy. They enable mechanical equipment and various motor vehicles to work safely and reliably. So the friction material is a widely used and crucial material. [0004] The friction material is a polymer ternary composite material, which is a physical and chemical complex. It is composed of polymer binder (resin and rubber), reinforcing fiber and friction performance...

Claims

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Application Information

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IPC IPC(8): C09K3/14C04B35/515F16D69/02
Inventor 齐景丰
Owner YUTIAN COUNTY JUNDA AUTOMOBILE PARTS MFG CO LTD
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