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Environment-friendly oil-resistant damping shock absorption and flame-retardant gasket material for motor unit train

A cushioning material and environment-friendly technology, which is applied in the fields of flame-retardant cushioning materials and environment-friendly oil-resistant damping and shock absorption, and can solve the problems of cushioning material burning, large deformation, and non-compliance with technical requirements

Inactive Publication Date: 2012-09-19
舟山海山机械密封材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Generally, asbestos rubber sheet material is used as the gasket material of traditional equipment joints, but asbestos is harmful to the human body, has large deformation, and does not have the characteristics of oil resistance, shock absorption, and flame retardancy, so this rubber sheet containing asbestos is made The gasket material applied to the installation joints of equipment such as EMU trains running at relatively high speeds does not meet the technical requirements of its work. There will be a gradual increase in vibration and noise, and some gasket materials will be partially or completely ignited and burned, so that the gasket material will be quickly damaged.
In this way, this liner material needs to be maintained or replaced frequently, which affects the normal operation of the train and increases maintenance costs

Method used

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  • Environment-friendly oil-resistant damping shock absorption and flame-retardant gasket material for motor unit train

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The composition of the gasket material and its weight percentage are as follows:

[0029] Fiber 18%

[0030] Rubber 14%

[0031] Filler 20%

[0032] Flame retardant 40%

[0033] Coupling agent 3%

[0034] Compounding agent 4%

[0035] Activator 1 %

[0036] The steps of the manufacturing process of the above-mentioned embodiment one gasket material are as follows:

[0037] Step 1, fiber pre-opening and mixing. First, aramid pulp fiber and glass fiber are added to the granulator in a weight ratio of 3:2 (ie 60% and 40%) for granulation and opening. After 30 After processing for a period of 1 minute to 1 hour, fluffy open fibers without agglomeration are obtained; then, add the open fibers together with fillers and flame retardants to a mixer and mix thoroughly to form a fiber-filled mixture . The above-mentioned fiber-filled mixture includes kaolin and calcium carbonate and is weighed and dosed in a weight ratio of 4:1.

[0038] Step 2, rubber plastic training p...

Embodiment 2

[0046] The composition of the gasket material and its weight percentage are as follows:

[0047] Fiber 11%

[0048] Rubber 12%

[0049] Filler 19%

[0050] Flame retardant 48%

[0051] Coupling agent 3.5%

[0052] Compounding agent 5%

[0053] Activator 1.5%

[0054] The manufacturing process steps of the gasket material of the above-mentioned embodiment 2 are the same as that of the embodiment 1, but as the content of fiber and rubber decreases relative to the embodiment 1, the transverse tensile strength decreases to nearly 9Mpa, and the processing manufacturability decreases.

Embodiment 3

[0056] The composition of the gasket material and its weight percentage are as follows:

[0057] Fiber 26%

[0058] Rubber 17%

[0059] Filler 15%

[0060] Flame retardant 32%

[0061] Coupling agent 2.2%

[0062] Compounding agent 6%

[0063] Activator 1.8%

[0064] The manufacturing process steps of the gasket material of the above-mentioned embodiment three are the same as those in the first embodiment, but with the increase of the rubber content, the heat resistance of the first embodiment decreases, and the reduction of the flame retardant content reduces the flame retardancy and the coupling agent The reduction of the product makes the compactness of the product insufficient, thus affecting the hardness and processing performance of the product.

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Abstract

The invention discloses an environment-friendly oil-resistant damping shock absorption and flame-retardant gasket material for a motor unit train, which comprises the following components by weight percent: 5-36 percent of fibers, 8-20 percent of rubbers, 15-42 percent of filling agents, 30-70 percent of fire retardant, 0.3-8 percent of coupling agent, 0.8-6 percent of compounding agents and 0.5-2 percent of activating agents. Because asbestos fibers are replaced by aramid pulp fibers, the harm to the human body in the production process and the use process of connection gaskets of equipment such as the motor unit train is eliminated; and gasket materials with good shock absorption and flame-retardant performances, which meet the requirement on installation connection part of the equipment such as the motor unit train are supplied; and meanwhile, the product has good strength, liquid resistance and heat resistance after the product is formed to ensure the flame-retardant shock absorption performance; and therefore, the gasket materials can be used as connection gaskets for installing the motor unit equipment and also can be used as other sealing materials having a requirement on the flame retardance.

Description

technical field [0001] The invention relates to a liner material for connecting equipment, more specifically, it relates to an environment-friendly oil-resistant damping shock-absorbing and flame-retardant liner material used in multiple trains. Background technique [0002] Generally, asbestos rubber sheet material is used as the gasket material of traditional equipment joints, but asbestos is harmful to the human body, has large deformation, and does not have the characteristics of oil resistance, shock absorption, and flame retardancy, so this rubber sheet containing asbestos is made The gasket material applied to the installation joints of equipment such as EMU trains running at relatively high speeds does not meet the technical requirements of its work. There will be a gradual increase in vibration and noise, and some gasket materials will be partially or completely ignited and burned, so that the gasket material will be quickly damaged. In this way, this liner materia...

Claims

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Application Information

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IPC IPC(8): C08L9/02C08L7/00C08L77/10C08K13/04C08K7/14C08K3/34C08K3/26C08K3/22C08K5/54C08K5/10C08J5/04
Inventor 施中堂姚志海
Owner 舟山海山机械密封材料股份有限公司
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