Preparation method for carbon slider used for assembling pantograph of electric locomotive

A technology for electric locomotives and carbon sliding plates is applied in the field of preparation of carbon sliding plates to achieve the effects of simple operation of the preparation process, good wear resistance and full utilization of resources

Active Publication Date: 2013-01-30
安徽锦美碳材科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, there is a gap in the research of various ente

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  • Preparation method for carbon slider used for assembling pantograph of electric locomotive

Examples

Experimental program
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Effect test

Example Embodiment

[0019] Example 1

[0020] Product preparation method:

[0021] Mix 625kg of calcined pitch coke particles with a particle size of 1-0mm, 100kg of artificial graphite particles with a particle size of 0.5-0mm, and 30kg of N330 carbon black with 240kg of molten pitch, add 5kg of stearic acid, and then use an extruder under a pressure of 11MPa Extruded into a 30×60×880mm square bar, roasted at 850°C for 300 hours, and then impregnated with 400kg of molten copper liquid for 2 hours, the weight of the copper-impregnated carbon slide is 1350kg. Product physical and chemical indicators:

[0022] Standard sizes 30×60×880mm Bulk density 2.57g / cm3 Resistivity 7.52μΩm

[0023] Flexural strength 87MPa Compressive strength 170MPa Impact toughness Not broken Shore hardness 82 wear height 4.7

Example Embodiment

[0024] Example 2

[0025] Product preparation method:

[0026] Mix 630kg of calcined pitch coke particles with a particle size of 1-0mm, 85kg of artificial graphite particles with a particle size of 0.5-0mm, and 40kg of N330 carbon black with 235kg of molten pitch, add 10kg of stearic acid, and then use an extruder under a pressure of 9MPa Extruded into 30×60×1000mm square bars, roasted at 850°C for 320 hours, each cut into 3 sections, and then impregnated with 400kg of molten copper liquid for 2 hours, the weight of the copper-impregnated carbon slide is 1300kg. Product physical and chemical indicators:

[0027] Standard sizes 30×60×305mm Bulk density 2.51g / cm3 Resistivity 8.52μΩm Flexural strength 92MPa Compressive strength 183 MPa Impact toughness Not broken Shore hardness 85 wear height 4.3

Example Embodiment

[0028] Example 3

[0029] Product preparation method:

[0030] Mix 630kg of calcined pitch coke particles with a particle size of 1-0mm, 90kg of artificial graphite particles with a particle size of 0.5-0mm, and 35kg of N330 carbon black with 235kg of molten pitch, add 10kg of stearic acid, and then use an extruder under a pressure of 14MPa Extruded into 24×30×650mm square bars, roasted at 850°C for 280 hours, and then impregnated with 400kg of molten copper liquid for 2 hours, the weight of the copper-impregnated carbon slide is 1360kg. Product physical and chemical indicators:

[0031] Standard sizes 24×30×600mm Bulk density 2.35g / cm3 Resistivity 7.82μΩm Flexural strength 87MPa Compressive strength 210MPa

[0032] Impact toughness Not broken Shore hardness 85 wear height 4.3

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Abstract

The invention relates to a preparation method for a carbon slider used for assembling the pantograph of an electric locomotive. The preparation method is characterized by comprising the following steps: crushing and batching calcined pitch coke and artificial graphite powder; adding 3 to 5% of N330 carbon black, 0.5 to 2% of stearic acid and 20 to 35% of molten asphalt and then carrying out kneading; carrying out extrusion molding on an obtained mixture according to a certain cross section shape by using an extruder; carrying out roasting at a temperature of 830 to 900 DEG C for 260 and 320 h; after rough machining, carrying out dipping with 30 to 50% of molten copper; and carrying out polishing so as to obtain a product. The preparation method provided by the invention has the advantages of simple operation, high yield, full utilization of resources, conservation of cost, capacity of allowing high mechanical strength and wear resistance to be maintained and strong practicality.

Description

technical field [0001] The invention relates to a method for preparing a carbon sliding plate used for assembling a pantograph of an electric locomotive. Background technique [0002] The electric locomotive obtains electric energy from the road network conductor through the pantograph slide plate, and drives the traction motor to drive the train to run. During high-speed driving of an electric locomotive, it is necessary to overcome the frictional resistance between the wheels and the track, as well as the air resistance, so it must have a powerful power source. This powerful power source is the high-voltage power provided by the road network wires, which is realized by the sliding contact between the pantograph slide plate installed on the top of the locomotive and the contact wires of the transmission network. Reliable contact between the pantograph slide and the road network conductor is an important condition to ensure high-speed current collection. During the current...

Claims

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Application Information

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IPC IPC(8): C04B35/622C04B35/52C04B41/88
Inventor 臧文平张勇赵旭岳奎张绍辉
Owner 安徽锦美碳材科技发展有限公司
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