Carbon fiber composite for pantograph pan slider and preparation method thereof
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A technology of pantograph slides and composite materials, applied in current collectors, electric vehicles, power collectors, etc., can solve problems such as interlayer cracking, poor wear resistance and stability, and complicated preparation processes, and achieve uniform wear and shedding, The effect of low cost and simple preparation process
Inactive Publication Date: 2018-08-21
QINGDAO UNIV
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[0009] Aiming at the problems of interlayer cracking, poor wear resistance and stability, and complicated preparation process of the existing carbon fiber composite pantograph slide, the present invention provides a carbon fiber composite material for pantograph slide and a preparation method thereof
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Embodiment 1
[0033] A carbon fiber composite material for a pantograph slide, comprising the following components in parts by weight: 20 parts of carbon fiber cloth, 40 parts of polyimide modified phenolic resin, 20 parts of graphite powder, 10 parts of chopped carbon fiber, copper Fiber 10 parts, KH550 coupling agent 5 parts, nitrile rubber 15 parts.
[0034] The carbon fiber cloth is a plain weave fabric made of 6K continuous carbon fibers, the length of the chopped carbon fibers is 4mm, and the length of the copper fibers is 1cm.
Embodiment 2
[0036]A carbon fiber composite material for a pantograph slide plate, comprising the following components in parts by weight: 35 parts of carbon fiber cloth, 55 parts of epoxy modified phenolic resin, 30 parts of graphite powder, 15 parts of chopped carbon fiber, and 12 parts of copper fiber parts, 7 parts of KH550 coupling agent, 22 parts of nitrile rubber.
[0037] The carbon fiber cloth is a plain weave fabric made of 12K continuous carbon fibers, the length of the chopped carbon fibers is 17mm, and the length of the copper fibers is 1.5cm.
Embodiment 3
[0039] A carbon fiber composite material for a pantograph slide plate, comprising the following components in parts by weight: 50 parts of carbon fiber cloth, 70 parts of xylene modified phenolic resin, 40 parts of graphite powder, 20 parts of chopped carbon fiber, and 15 parts of copper fiber parts, 10 parts of KH550 coupling agent, 30 parts of nitrile rubber.
[0040] The carbon fiber cloth is a plain weave fabric made of 12K continuous carbon fibers, the length of the chopped carbon fibers is 30mm, and the length of the copper fibers is 2cm.
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Abstract
The invention discloses a carbon fiber composite for a pantograph pan slider and a preparation method thereof. The carbon fiber composite is prepared from carbon fiber cloth, thermosetting modified phenolic resin, graphite powder, chopped carbon fiber, copper fiber, a KH550 coupling agent and nitrile rubber. The preparation method comprises the steps of immersing, mixing, mould pressing, dipping and curing. The carbon fiber composite has the beneficial effects that with the carbon fiber cloth, phenolic resin, nitrile rubber and graphite powder as a continuous phase, and with the chopped carbonfiber and copper fiber as an reinforcement phase, the composite is free of a copper wire mesh, interlayer structures in the composite are reduced, and the probability of interlayer cracking is lowered when the pantograph slider is subjected to friction; with the KH550 coupling agent, organic matter and carbon fibers in a system can be coupled to form a physical structure, so that the strength andthe stability in friction of the carbon fiber composite are enhanced; the composite is made from few components, the preparation process is simple, the cost is low, and thus the composite is applicable to industrial production.
Description
technical field [0001] The invention relates to the field of carbon fiber composite materials, in particular to a carbon fiber composite material for a pantograph sliding plate and a preparation method thereof. Background technique [0002] Electric locomotive is a modern railway transportation tool. Compared with the railway transportation tools pulled by internal combustion engines and steam locomotives, it has the advantages of economy, high speed and heavy load, energy saving and no pollution. Nowadays, the speed of high-speed trains can reach 390km / h. In order to ensure the stable operation of the train, the pantograph slide plate of the electric locomotive should be a combination of high strength, high toughness, high electrical and thermal conductivity, low resistance, wear resistance and self-lubricating properties. Sliding electrical contact material. The pantograph slide plate and wire constitute a pair of special friction pairs with mechanical and electrical coup...
Claims
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