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Brake shoe for hump decelerator and manufacturing method thereof

A manufacturing method and technology of a reducer, applied in chemical instruments and methods, other chemical processes, friction linings, etc., can solve problems such as poor heat resistance, polluted operating environment, loud noise, etc., to improve production safety and improve operation. environment, the effect of improving marshalling efficiency

Inactive Publication Date: 2007-07-04
SHANGHAI RENPHEN COMPOSITE MARERIALS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to its low friction coefficient, it is not only unable to adapt to efficient mechanized and automated hump marshalling stations, and is prone to major quality accidents, but also, the huge noise is unbearable and seriously pollutes the working environment
[0006] However, if the existing synthetic materials are used, due to the low friction coefficient, it is only 0.30-0.45: the heat resistance is poor, and the decomposition temperature is only 312 °C; the strength is low, and the general impact strength is 0.5J / cm 2 Below, the bending strength is less than 80MPa, and there will be serious block falling during use

Method used

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  • Brake shoe for hump decelerator and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Brake shoe body:

[0039] Component Weight percent

[0040] Aramid fiber (Kevlar Pulp979) 2

[0041] carbon fiber 5

[0042] A6 resin 20

[0043] Corundum 5

[0044] Clay 20

[0045] Feldspar 18

[0046] Barite 25

[0047] graphite 5

[0048] Put the raw materials into the rake type mixer in proportion, stir for 5 minutes, and set aside.

[0049] The adhesive silk cloth (thickness 0.5 ~ 3mm, door width 1000mm) is impregnated with A6 resin, the gluing rate is 20% by weight, cut into corresponding size, and pasted on the inner wall of the mold and / or the upper mold. The total thickness of one side is 3-5mm.

[0050] Pour the pressed plastic of the brake shoe body into the mold, control the mold temperature to 170-190°C, the pressure to 15MPa, and the time to 5min.

[0051] The properties of the made material are as follows:

[0052] temperature(℃)

100

...

Embodiment 2

[0059] Brake shoe body:

[0060] Component Weight percent

[0061] Kevlar Pulp979 1

[0062] steel fiber 25

[0063] A6 resin 25

[0064] corundum 4

[0065] Clay 10

[0066] Feldspar 15

[0067] Barite 15

[0068] graphite 5

[0069] Put the raw materials into the plow rake mixer in proportion, stir for 5 minutes, and set aside.

[0070] The continuous long fiber adopts 1.5mm glass fiber cloth.

[0071] The bottom reinforcement material is made of iron plate with a thickness of 4mm, the surface is galvanized, and treated with an adhesive, so that it can be well bonded to the brake shoe body material.

[0072] Manufacturing method is the same as embodiment 1.

[0073] The properties of the prepared material are as follows:

[0074] temperature(℃)

100

150

200

250

300

coefficient of friction

0.50

0.52

0.53

...

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Abstract

The invention relates to a brake shoe for hump speed reducer and the method for preparing the same. Said brake shoe comprises brake shoe body, peripheral reinforcing material, and bottom reinforcing material. Said brake shoe body employs the composite material of mixed fiber reinforcing resin and packing high friction packing material; said peripheral reinforcing material takes fiber reinforcing resin material; and said bottom reinforcing material employs iron plate or fiber reinforcing resin material. The method comprises processes of preparaing raw material, attaching moudle and shaping. The invention is characterized compared with current technology by high friction coefficient, good mechanical property and weather resistance, and low noise.

Description

technical field [0001] The invention relates to a friction material with high friction coefficient and high strength and a manufacturing method thereof, in particular to a brake shoe applied to a hump reducer and a manufacturing method thereof. Background technique [0002] In the marshalling yard, the trucks slide down from the hump and arrive at the route established in the marshalling yard to prepare for new trains in the marshalling yard. The world's first simple hump was built in 1876 at the Speddorf marshalling yard in Germany. Utilizing hump shunting can not only improve working conditions, but also improve shunting efficiency and operating capacity. In 1924, the world's first mechanized hump that uses a reducer to adjust the speed was built in the Gibson marshalling yard in the United States. In 1956, the world's first automated hump, which uses a digital electronic computer to control the speed and route of vehicles, was built in the Gatoway marshalling yard in th...

Claims

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Application Information

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IPC IPC(8): C09K3/14F16D69/02
Inventor 张定权
Owner SHANGHAI RENPHEN COMPOSITE MARERIALS
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