Pantograph sliding plate of assorted fibre reinforced composite material and preparing method thereof

A technology of reinforced composite materials and pantograph slides, applied in circuits, current collectors, electric vehicles, etc., can solve the problems of unsatisfactory requirements, high resistivity, etc., and achieve the effect of excellent lubricating properties

Inactive Publication Date: 2006-01-11
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The Chinese patent with the publication number CN1265429A discloses that a carbon-copper composite material pantograph slide plate is prepared by using long carbon fiber as a reinforcing agent. requirements

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Example 1: 8% carbon fiber, 15% steel fiber, 12% wollastonite fiber, 12% graphite powder, 10% nitrile rubber, 8% copper powder, 5% silicon dioxide, and phenolic resin in the hybrid fiber reinforced composite material 30%, use absolute ethanol to adjust the above-mentioned mixture into a paste, and fully stir it evenly. Then pour it into a stainless steel tray, put it in an oven, and dry it at 100°C for 1 hour. Fill the dried mixture into a special mold for preparing a skateboard. The thickness of the mixture is about 4 mm, and then spread a layer of about 1 mm. Thick copper mesh, with a total of 25 layers distributed alternately. Hot pressing at 160°C for 30 minutes at a pressure of 100 MPa, and post-treatment of the hybrid fiber composite slide plate at 160°C for 30 minutes. The density of the skateboard is 2.08g.cm -3 , resistivity 3.6×10 -6 Ω.m, impact strength 32.3KJ.m -2 , Bending strength 138MPa. It can be seen that the skateboard has the advantages of low de...

Embodiment 2

[0016] Example 2: 15% of carbon fiber, 25% of sepiolite fiber, 10% of graphite powder, 10% of nitrile rubber, 5% of barium sulfate, 5% of silicon dioxide, and 30% of phenolic resin in the hybrid fiber reinforced composite material, mixed uniformly Finally, dry the mixture and fill it in a special mold for preparing skateboards. The thickness of the mixture is about 3 mm, and then a layer of stainless steel mesh with a thickness of about 1 mm is laid, and a total of about 40 layers are distributed alternately. Hot pressing at 100MPa pressure and 160°C for 30 minutes, and the finished carbon fiber composite slide plate was post-treated at 160°C for 30 minutes. The density of the skateboard is 2.18g.cm -3 , resistivity 4.6×10 -6 Ω.m, impact strength 38.6KJ.m -2 , The bending strength is 168MPa. The test shows that the sliding plate has excellent performance indicators and meets the requirements of the pantograph sliding plate for modern railway electric locomotives.

Embodiment 3

[0017] Example 3: 1% carbon fiber, 10% copper fiber, 20% glass fiber, 9% rock wool, 3% graphite powder, 10% copper powder, 2% nitrile rubber, and 5% silicon dioxide in the hybrid fiber reinforced composite material , 40% phenolic resin, after mixing evenly, dry the mixture and fill it in a special mold for preparing skateboards. The thickness of the mixture is about 5 mm, and then spread a layer of aluminum mesh about 2 mm thick, with a total of about 15 layers. Hot pressing at 100MPa pressure and 160°C for 30 minutes, and the finished carbon fiber composite slide plate was post-treated at 160°C for 30 minutes. The density of the skateboard is 2.02g.cm -3 , resistivity 4.2×10 -6 Ω.m, impact strength 31.2KJ.m -2 , The bending strength is 126MPa. The test shows that the slide plate has excellent performance indicators and meets the requirements of the pantograph slide plate used in modern railway electric locomotives.

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Abstract

This invention relates to a hybrid fiber reinforcement compound material pantograph slide plate with lamination used in railway electric locomotives and its preparation method, which takes a metal net and hybrid fiber reinforcement compound material as the backing of said slide plate and makes them distribute in lamination, among which, phenolic resin is taken as the matrix, hybrid fiber as the reinforcement agent, rubber, graphite, copper powder, baritite and at least three kinds in SiO2 as the friction performance modifiers of the compound material to be mixed fully to be hot-pressed with the metal net to form a pantograph slide plate.

Description

technical field [0001] The invention belongs to the field of new materials, and in particular relates to a hybrid fiber-reinforced composite material pantograph slide plate with layered structure characteristics suitable for railway electric locomotive application and a preparation method thereof. Background technique [0002] The current electric locomotive pantograph slides mainly include powder metallurgy slides, ordinary carbon slides and impregnated metal carbon slides. The powder metallurgy slide plate is mainly made of copper powder or iron powder as the base material, and other metal powder and non-metal powder are pressed and sintered. It has the advantages of high mechanical strength and impact resistance, but it wears the copper catenary wire very seriously. , and arcs are prone to occur during use, which not only increases mechanical wear and arc wear, but also interferes with radio signals. Ordinary carbon slides have good lubricating performance, anti-friction...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B1/02H01B5/00B60L5/18C08J5/14
Inventor 王成国朱波刘建军蔡华苏
Owner SHANDONG UNIV
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