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Flexible grease-proof paper-based friction plate and manufacturing method thereof

A paper-based friction sheet, flexible technology, applied in friction linings, chemical instruments and methods, mechanical equipment, etc., can solve the problems of poor low temperature resistance, ozone resistance, and poor insulation performance of nitrile rubber, and achieve improved friction and wear performance, improved flexibility, and the effect of a high coefficient of friction

Inactive Publication Date: 2019-08-13
NANTONG WANDA FRICTION MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, nitrile rubber has the disadvantages of poor low temperature resistance, poor ozone resistance, poor insulation performance, and slightly low elasticity, resulting in poor flexibility of the above invention.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A flexible oil-resistant paper-based friction sheet provided by the invention comprises the following materials in mass fractions: compounding agent: 0.8-1.2; sulfur: 2.5-5.5; filler: 44-73; flexible adhesive: 8-12; Adhesive: 10~20; Nitrile rubber: 10~14; Flexible reinforcing fiber: 0.3~1; Carbon fiber: 0.5~2.

[0025] The invention increases the oil resistance of the manufactured friction plate by using nitrile rubber, and at the same time ensures other physical and mechanical properties of the friction plate, has a high friction coefficient and maintains the same friction performance under the condition of oil immersion.

[0026] Optionally, the compounding agent includes the following materials in mass fraction: Accelerator: 0.4-0.6; Anti-aging agent: 0.4-0.6.

[0027] Optionally, the filler includes materials with the following mass fractions: zinc oxide: 1.5-3.5; carbon black: 6-10; graphite: 6-10; chromite powder: 6-10; petroleum coke powder: 3-5 ; Precipitated b...

Embodiment 2

[0034] The present invention also provides a production method of the above-mentioned flexible oil-resistant paper-based friction plate, comprising the steps of:

[0035] Step 1: Put the nitrile rubber into the internal mixer for mastication;

[0036] Step 2: Put the compounding agent, sulfur, filler, flexible adhesive, brittle adhesive, flexible reinforcing fiber, carbon fiber and masticated nitrile rubber into an internal mixer for mixing to form a mixed rubber;

[0037] Step 3: moving the mixed rubber into an open type rubber mixing machine, and making the mixed rubber pass through the roller shaft of the open type rubber mixing machine to form a film;

[0038] Step 4: Wrap a film around the film for isolation.

[0039] The production method in the present invention is aimed at the production method of the above materials, and the produced paper-based friction sheet has high friction coefficient, stable friction performance and certain friction performance under the condit...

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PUM

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Abstract

The invention provides a flexible grease-proof paper-based friction plate and a manufacturing method of the flexible grease-proof paper-based friction plate. The flexible grease-proof paper-based friction plate comprises, by mass, 0.8-1.2 parts of compounding agent; 2.5-5.5 parts of sulfur; 44-73 parts of filler; 8-12 parts of flexible adhesive; 10-20 parts of brittle adhesive; 10-14 parts of nitrile rubber; 0.3-1 part of flexible reinforcing fiber and 0.5-2 parts of carbon fiber. By the adoption of the flexible grease-proof paper-based friction plate and the manufacturing method of the flexible grease-proof paper-based friction plate, the grease resistance of a friction material can be guaranteed, the friction performance existing after oil immersion of the friction plate is identical with that of the friction plate without oil immersion, and a stable friction performance and a high friction coefficient of the paper-based friction plate can be guaranteed; the flexible reinforcing fiber and the carbon fiber with good friction performance are used as reinforcing fiber, the flexible adhesive and the brittle adhesive are used as adhesive, the flexible reinforcing fiber and the carbonfiber are complementary in performance, so that the flexibility of the paper-based friction material is improved, and the friction wear resistance of the paper-based friction material is also improved.

Description

technical field [0001] The invention relates to the technical field of friction plates, in particular to a flexible oil-resistant paper-based friction plate and a preparation method thereof. Background technique [0002] Friction materials are mainly composed of fibers, binders, fillers, and friction modifiers, and are usually produced by papermaking, so they are called paper-based friction materials. Because of its high friction coefficient, stable friction performance, adjustable dynamic and static friction coefficient ratio, good wear resistance, high energy absorption capacity and many other excellent properties, it is widely used in various heavy vehicles and engineering vehicles. Traditional clutch facings are mainly used for dry clutches, not suitable for wet clutches. The publication number is CN104829888A, and the name is the invention patent application of the oil-resistant paper-based friction sheet and its production method. The oil-resistant paper-based frictio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D69/02B29B7/00C09K3/14
CPCB29B7/002C09K3/14F16D69/023F16D69/025F16D2200/0052F16D2200/0056F16D2200/006F16D2200/0082
Inventor 彭鹏张杨
Owner NANTONG WANDA FRICTION MATERIAL
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