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A kind of rail damping backing plate and preparation method thereof
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A technology of shock absorbing pads and rails, which is applied in the field of rail shock absorbing pads and its preparation, can solve problems such as poor mechanical properties, and achieve the effects of good mechanical properties and excellent oil resistance
Active Publication Date: 2017-01-11
DONGGUAN XIONGLIN NEW MATERIAL TECH +1
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But, because the main body rubber that this invention adopts is silicon rubber, mechanical property is relatively poor
Method used
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Embodiment 1
[0027] A rail damping pad, which is mainly prepared from the following raw materials in parts by weight:
[0047] The raw materials also include an active agent, which is zinc stearate or / and magnesium stearate.
[0048] The raw materials also include pottery clay, the content of which is 3 parts by weight.
[0049] The preparation method of rail shock-absorbing backing plate as described above, described method comprises the steps:
[0050] After the components are uniformly mixed, they are extruded through an extruder to obtain a rail shock-absorbing backing plate.
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Abstract
The invention provides a shock absorption backing plate for a rail and a preparation method thereof. The shock absorption backing plate for the rail is mainly prepared from the following raw materials in parts by weight: 40-60 parts of TPU (ThermoplasticPolyurethane) particle, 10-29 parts of silicone rubber, 20-40 parts of butadiene styrene rubber, 20-30 parts of white carbon black, 1-5 parts of a coupling agent, 2-3 parts of a cross-linking agent and 1-3 parts of an initiator. According to the shock absorption backing plate and the preparation method provided by the invention, by using the synergistic effect of phenolic resin, the silicone rubber and the butadiene styrene rubber according to the weight parts, the obtained shock absorption backing plate for the rail has the advantages of good mechanical properties and shock absorption and buffering effects, excellent oil resistance, weather resistance and insulating performance.
Description
technical field [0001] The invention relates to a rail damping backing plate and a preparation method thereof. Background technique [0002] my country is carrying out large-scale construction of passenger dedicated lines and high-speed railways. By 2020, more than 10,000 kilometers of passenger dedicated lines will be built, forming the skeleton of "four horizontal and four vertical" passenger dedicated lines. More than 2,000 kilometers of high-speed railway. With the continuous improvement of people's requirements for the speed of trains, how to solve the vibration and impact caused by the running of vehicles has become a very critical issue. [0003] In order to reduce vibration and noise, the new fastenersystem designs an elastic backing plate under the iron backing plate, which is a key elastic component in the high-speed railway fastenersystem and plays a decisive role in the stiffness, fatigue performance and comprehensive performance of the entire fastenersystem ...
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Application Information
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