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Dry-type asbestos-free friction sheet

A non-asbestos, friction plate technology, applied in the direction of friction lining, adhesive type, mechanical equipment, etc., can solve the problems of high noise, unstable friction performance, low utilization rate of friction materials, etc., to achieve excellent performance and simple process , the effect of excellent wear resistance and mechanical properties

Inactive Publication Date: 2010-07-07
杭州汉乐科新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a method for preparing a friction brake pad, which improves the friction material formula to solve the technical problems of low friction material forming strength, low friction material utilization rate, unstable friction performance, and high noise in the prior art.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] Embodiment 1, dry-type non-asbestos friction sheet, made of metal skeleton, friction material, described metal skeleton is to use aluminum alloy casting molding, its friction material formula is made up of the following components by weight percentage: Butyronitrile modified nano-phenolic 26% resin; copper fiber: 6%; graphite 8%; polytetrafluoroethylene: 5%; carbon fiber 5%; sodium fluoride 10% acrylic pulp fiber 15%; mineral 20; curing agent 5%.

[0012] The production method is as follows: mix the raw materials evenly according to the proportion and dry them; put them into the mold under the pressure of 20Mpa, and pass the self-made adhesive through the hot press at 170°C. The main components of the self-made adhesive are phenolic resin, nitrile rubber and curing agent. The metal skeleton and the friction material are compacted and sintered at 200°C for 8 hours.

Embodiment 2

[0013] Embodiment 2, dry-type non-asbestos friction plate, is made of metal skeleton, friction material, and described metal skeleton is to use aluminum alloy casting molding, and its friction material formula is made up of following component by weight percentage: Butyronitrile modified nano-phenolic aldehyde 15% resin; copper fiber: 4%; graphite 5%; polytetrafluoroethylene: 6%; carbon fiber 10%; sodium fluoride 10% acrylic pulp fiber 20%; mineral 25%; curing agent 5%.

[0014] The production method is as follows: mix the raw materials evenly in proportion and dry them; put them into the mold at a pressure of 35Mpa, and pass the self-made adhesive through a hot press at 160°C. The main components of the self-made adhesive are phenolic resin, nitrile rubber and curing agent. The metal skeleton and the friction material are compacted and formed, and then sintered at 180°C to 200°C for 8 hours.

Embodiment 3

[0015] Embodiment 3, dry-type non-asbestos friction plate, is made of metal skeleton, friction material, and described metal skeleton is to use aluminum alloy casting molding, and its friction material formula is made up of the following components by weight percentage: Butyronitrile modified nano-phenolic aldehyde Resin 10%; copper fiber: 6%; graphite 10%; polytetrafluoroethylene: 5%; carbon fiber 15%; sodium fluoride 5% ~ 10% acrylic pulp fiber 14%; minerals 25%; composition.

[0016] The production method is as follows: mix the raw materials evenly in proportion and dry them; put them into the mold at a pressure of 20-35Mpa, and pass a self-made adhesive through a hot press at a temperature of 160-170 °C. The main components of the self-made adhesive are phenolic resin and nitrile rubber. And curing agent, the metal skeleton and the friction material are compacted and molded, and sintered at 180°C to 200°C for 8 hours.

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PUM

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Abstract

The invention relates to a dry-type asbestos-free friction sheet which is made of a metal framework and a friction material, wherein the metal framework is cast and molded by aluminum alloy. The dry-type asbestos-free friction sheet is characterized in that: the friction material comprises the following components in percentage by weight: 5 to 26 percent of butyronitrile modified nano phenolic resin, 4 to 6 percent of copper fiber, 2 to 10 percent of graphite, 5 to 8 percent of polytetrafluoroethylene, 5 to 15 percent of carbon fiber, 5 to 10 percent of sodium fluoride, 10 to 20 percent of acrylic pulp fiber, 5 to 30 percent of mineral substances and 4 to 6 percent of curing agent. The dry-type asbestos-free friction sheet has simple process; and the friction material has excellent abrasion resistance and mechanical property and is an elevator braking friction material with excellent performance.

Description

technical field [0001] The invention relates to a friction component for construction machinery braking, in particular to a dry non-asbestos friction plate. Background technique [0002] Elevator friction brake pad technology is an elevator braking technology with simple structure, wide applicability, and convenient installation and maintenance. At present, an important factor restricting its popularization and application is the lack of cost-effective braking friction materials. The requirements of elevators for friction materials Very high, it needs to have stable friction, wear performance and certain high temperature resistance, low noise, and can meet more than 10,000 continuous opening operations, and the performance remains stable. At the same time, the material is also required to meet the EU ROHS environmental protection and related restrictions. The requirements of the Substance Directive do not contain asbestos, lead, cadmium, mercury, hexavalent chromium and othe...

Claims

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Application Information

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IPC IPC(8): F16D69/02B29C43/18B29C43/58C08L61/14C08K13/04C08J5/14C09J161/06
Inventor 徐南汉
Owner 杭州汉乐科新材料科技有限公司