Unlock instant, AI-driven research and patent intelligence for your innovation.

A wet paper-based friction material for agricultural machinery and a method for making its friction plate

A technology for agricultural machinery and friction materials, applied in the field of friction materials, can solve the problems of unadjustable compression and rebound performance of friction effects, difficult to control pore structure of friction materials, and low friction coefficient, so as to ensure the stability of dynamic and static friction coefficient, Improve physical and mechanical properties, good oil resistance and oil conductivity

Active Publication Date: 2017-01-18
杭州润福春科技有限公司
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Traditional wet friction materials for agricultural machinery mainly use rubber cork-based wet friction plates; its advantage is that powder friction materials and block rubber materials can be fully utilized in the material composition structure, and it can be formed at one time with low production costs; The disadvantage is that the pore structure of the friction material is difficult to control, the compression rebound performance that affects the friction effect cannot be adjusted, the friction coefficient is low, and the ratio of dynamic / static friction varies greatly

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A wet paper-based friction material for agricultural machinery and a method for making its friction plate
  • A wet paper-based friction material for agricultural machinery and a method for making its friction plate

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0039] The preparation method of the polyurethane elastic friction particles is carried out according to the following steps;

[0040] 1) Take various raw materials according to the formula for subsequent use;

[0041] 2) Polyurethane rubber, methyl vinyl silicone rubber, accelerator PZ, anti-aging agent RD, white carbon black, activated magnesium oxide, stearic acid, crosslinking agent DCP, sulfur, alkylphenol modified phenolic resin, fluorescent Stone powder, silicon carbide particles, and magnesium borate whiskers are put into the mixing chamber of the twin-screw continuous mixer and mixed for 16-18 minutes. The temperature in the mixing chamber is set at 120°C-130°C; Injection vulcanization and extrusion molding in the discharge chamber, the injection vulcanization temperature is set at 150°C to 160°C, and the injection pressure is 50MPa to 60MPa;

[0042] 3) Making granules: Put the rubber strip formed by the twin-screw continuous mixer into the crusher and crush it into...

Embodiment 1

[0058] A wet-type paper-based friction material for agricultural machinery, including the following raw materials: 10 parts of polyimide chopped fiber, 20 parts of Yaposi fiber, 12 parts of para-aramid fiber precipitate; 25 parts of ETF wood fiber; 9 parts of algae earth, 4 parts of aramid wear-resistant particles, 10 parts of ceramic hollow micropowder beads, 8 parts of hollow microsphere powder, 6 parts of polyurethane elastic friction particles, 10 parts of modified floating beads, 8 parts of emulsified graphite, 1.5 parts of fluorinated graphite 5 parts, 5 parts of benzoxazine resin, 4 parts of polytetrafluoroethylene emulsion, 7 parts of liquid hydrogenated nitrile latex, 7 parts of benzoxazine resin solution;

[0059] Appropriate amount of polyacrylamide, appropriate amount of polyethylene oxide, appropriate amount of sodium lauryl sulfate, appropriate amount of sodium dodecylbenzenesulfonate.

[0060] The polyimide chopped fiber has a diameter of 15um and a length of 5m...

Embodiment 2

[0072] A wet-type paper-based friction material for agricultural machinery, including the following raw materials: 12 parts of polyimide chopped fiber, 25 parts of Yaposi fiber, 12 parts of para-aramid fiber precipitation; 28 parts of ETF wood fiber; 11 parts of algae earth, 5 parts of aramid wear-resistant particles, 12 parts of ceramic hollow micropowder beads, 9 parts of hollow microsphere powder, 8 parts of polyurethane elastic friction particles, 12 parts of modified floating beads, 9 parts of emulsified graphite, 2 parts of fluorinated graphite 6 parts, 6 parts of benzoxazine resin, 5 parts of polytetrafluoroethylene emulsion, 8 parts of liquid hydrogenated nitrile latex, 7.5 parts of benzoxazine resin solution;

[0073] Appropriate amount of polyacrylamide, appropriate amount of polyethylene oxide, appropriate amount of sodium lauryl sulfate, appropriate amount of sodium dodecylbenzenesulfonate.

[0074] The polyimide chopped fiber has a diameter of 15um and a length of...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
lengthaaaaaaaaaa
diameteraaaaaaaaaa
lengthaaaaaaaaaa
Login to View More

Abstract

The invention relates to a wet paper-based friction material for agricultural machinery and a manufacturing method of a friction plate made of the wet paper-based friction material. The invention aims to provide the wet paper-based friction material with the characteristic of high dynamic and static friction coefficients; and the provided method has the characteristic of simple process. Through the adoption of the technical scheme, the wet paper-based friction material for the agricultural machinery comprises the ingredients, namely a base material, a friction performance regulator and a forming adhesive. The manufacturing method of the wet paper-based friction plate for the agricultural machinery is carried out according to the following steps: firstly, making base paper; and secondly, manufacturing the wet paper-based friction plate for the agricultural machinery, wherein the step of making the base paper comprises the following substeps: firstly, carrying out microfiber oxidation treatment on reinforced fibers; secondly, preprocessing; thirdly, obtaining a mixture; fourthly, forming mixed slurry of which materials are uniformly dispersed; and fifthly, carrying out papermaking of the base paper; and the step of manufacturing the wet paper-based friction plate for the agricultural machinery comprises the following substeps: firstly, impregnating the base paper and then drying; secondly, carrying out hot-pressing curing on the base paper to obtain the wet paper-based friction material for later use; and thirdly, adhering the wet paper-based friction material for the agricultural machinery to a core veneer.

Description

technical field [0001] The invention relates to a friction material, in particular to a production method of a wet paper-based friction material for agricultural machinery and a wet paper-based friction sheet for agricultural machinery; it is suitable for clutches and braking systems in agricultural machinery. Background technique [0002] Traditional wet friction materials for agricultural machinery mainly use rubber cork-based wet friction plates; its advantage is that powder friction materials and block rubber materials can be fully utilized in the material composition structure, and it can be formed at one time with low production costs; The disadvantage is that the pore structure of the friction material is difficult to control, the compression rebound performance that affects the friction effect cannot be adjusted, the friction coefficient is low, and the ratio of dynamic / static friction varies greatly. With the development of modern agricultural machinery in the direc...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): D21H15/12D21H13/26D21H13/00D21H21/54D21H17/68D21H17/53D21H17/35D21H17/34D21H17/00B24D18/00C09K3/14
Inventor 章春华盛剑峰杨攀
Owner 杭州润福春科技有限公司
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com