Drum-type friction plate prepared from double-layer friction material, and preparation method thereof

A technology of friction materials and friction plates, which is applied in the direction of friction linings, chemical instruments and methods, mechanical equipment, etc., can solve problems such as waste of resources, achieve the effects of reducing formula costs, ensuring bonding strength, and good wear resistance

Active Publication Date: 2016-03-02
HUBEI FEILONG FRICTION & SEALING MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This will result in a certain degree of waste of resources

Method used

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  • Drum-type friction plate prepared from double-layer friction material, and preparation method thereof
  • Drum-type friction plate prepared from double-layer friction material, and preparation method thereof
  • Drum-type friction plate prepared from double-layer friction material, and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0034] Such as figure 1 and figure 2 As shown, a drum friction plate made of double-layer friction material 220 includes a bottom layer 100 made of primer 120 and a friction layer 200 made of friction material 220, and the friction layer 200 is fixed on the outside of the bottom layer 100 . The friction layer 200 and the bottom layer 100 adopt two different formulations of the friction material 220 and the primer 120 respectively. The friction material 220 uses the internationally leading non-asbestos formula system to ensure that the product has excellent friction and wear characteristics. The formulation of the primer 120 is used The formula system mainly uses the dust and drilling chips produced during the grinding of drum friction discs to make it have excellent mechanical properties. The friction material 220 can meet the friction performance, and the base material 120 can meet the mechanical properties. Since the base material 120 is not used in use, there is no requi...

Embodiment 1

[0051] Formula of friction material 220:

[0052] 8 parts of phenolic resin, 5 parts of glass fiber, 2 parts of nitrile rubber powder, 1 part of carbon fiber, 10 parts of mineral fiber, 20 parts of barium sulfate, 10 parts of calcium carbonate, 1 part of alumina, 2 parts of zircon powder, 2 parts of kaolin, 1 part of vermiculite, 2 parts of flake graphite, 3 parts of synthetic graphite, 3 parts of coke powder, 5 parts of calcium hydroxide.

[0053] The composition of base material 120

[0054] 3 parts of phenolic resin, 30 parts of ground dust granulation, 10 parts of mineral fiber, 10 parts of barium sulfate, 3 parts of glass fiber, and 5 parts of calcium carbonate.

[0055] Grinder granulated ingredients in primer 120

[0056] 3 parts of liquid NBR, 3 parts of liquid phenolic resin, 0.25 parts of vulcanization system, and 80 parts of collected dust.

[0057] The temperature of the forming mold 310 during the preparation of the drum friction plate prefabricated block descr...

Embodiment 2

[0059] Formula of friction material 220:

[0060] 11 parts of phenolic resin, 7.5 parts of glass fiber, 2.5 parts of nitrile rubber powder, 1.5 parts of carbon fiber, 15 parts of mineral fiber, 27.5 parts of barium sulfate, 15 parts of calcium carbonate, 2 parts of alumina, 3 parts of zircon powder, 3.5 parts of kaolin , 2.5 parts of vermiculite, 3.5 parts of flake graphite, 4 parts of synthetic graphite, 4 parts of coke powder, and 7.5 parts of calcium hydroxide.

[0061] The composition of base material 120

[0062] 4 parts of phenolic resin, 40 parts of ground dust granulation, 12.5 parts of mineral fiber, 15 parts of barium sulfate, 4 parts of glass fiber, and 7.5 parts of calcium carbonate.

[0063] Grinder granulated ingredients in primer 120

[0064] 5 parts of liquid NBR, 5 parts of liquid phenolic resin, 0.375 parts of vulcanization system, and 85 parts of collected grinding dust.

[0065] The temperature of the forming mold 310 during the preparation of the drum-t...

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Abstract

The invention discloses a drum-type friction plate prepared from a double-layer friction material, and a preparation method thereof. The drum-type friction plate comprises a base layer prepared from a base material, and a friction layer prepared from a friction material; the friction layer and the base layer are combined via hot press molding. The preparation method comprises following steps successively: prefabricated block preparation, hot press molding, heat treatment, and grinding and drilling. Beneficial effects are that: the friction layer possesses stable friction coefficient and excellent wear resistance; the base layer possesses high impact strength, compressive strength, and internal-shearing strength; welding spot effect of abrasive dust particle in the base material is achieved in premixed material hot press molding process so as to ensure bonding strength of the base material with a surface material; no requirement on the friction performance of the base material is proposed so as to reduce cost; waste dust and drilling cuttings generated in product production process are recycled effectively so as to reduce cost and improve the environment.

Description

technical field [0001] The invention relates to the technical field of friction materials, in particular to a drum type friction plate produced by a double-layer material formula system. Background technique [0002] At present, the production process of the drum friction plate will produce a large amount of dust and drill cuttings, which usually account for 6%-10% of the mass ratio of a finished product, and will bring environmental pollution and high waste disposal costs. [0003] The drum type friction plate is usually connected with the brake shoe by riveting. In normal use, when the thickness of the friction plate is worn to the position close to the rivet, the friction plate must be replaced, so the general friction plate will have a wear limit regulation ( 4-8mm). The formula of a friction lining commonly used at home and abroad is the same, and there is no distinction between the upper wear limit and the lower wear limit. This will cause a certain degree of waste o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K3/14F16D69/02
Inventor 罗金中张学芬
Owner HUBEI FEILONG FRICTION & SEALING MATERIALS
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