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Protective tube for bullet train braking device and preparation method thereof

A braking device and protection tube technology, applied in the field of rubber tubes, can solve the problems of damage of rubber hose and fireproof sheath, worn rubber hose, damage of fireproof sheath, etc., to ensure performance, improve strength, and improve kneading. degree of effect

Inactive Publication Date: 2021-01-15
余姚市振州工贸有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above-mentioned related technologies, the inventor believes that during the braking process of the motor vehicle, due to the influence of environmental factors and the driving route of the motor vehicle, some fine sand and gravel particles will accumulate between the rubber hose and the fireproof sheath, and the sand and gravel will wear out. rubber hose
The train is impacted by the airflow during its operation, resulting in damage to the fire protection sheath
Both the rubber hose and the fireproof sheath will be damaged to varying degrees, which will affect driving safety

Method used

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  • Protective tube for bullet train braking device and preparation method thereof
  • Protective tube for bullet train braking device and preparation method thereof
  • Protective tube for bullet train braking device and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Table 1 is a kind of each raw material and quality of the protection tube that is used for motor car braking device of embodiment 1

[0045]

[0046] A method for preparing a protective tube for a motor vehicle braking device, specifically comprising the following steps:

[0047] S1. Start the internal mixer, preheat it at 40°C for 15 minutes, weigh EPDM rubber and natural rubber according to the formula in Table 1 and put them in the internal mixer to mix evenly. The internal mixing temperature is 120°C. The time is 3 minutes, and then boron oxide, glass powder, flame retardant, lubricant, anti-aging agent, and hydroxyl silicone oil are added to the internal mixer and mixed for 5 minutes;

[0048] S2, then plasticizer and filler are added in the internal mixer, and mixed again for 5min;

[0049] S3, add sulfur and accelerator and knead for 5 minutes, and after thinning for 2 times, stop the lower film and let the glue dry for 10 hours;

[0050] S4. After drying th...

Embodiment 2

[0053] Table 2 is a kind of each raw material and quality of the protection tube that is used for motor car braking device of embodiment 2

[0054]

[0055] A method for preparing a protective tube for a motor vehicle braking device, specifically comprising the following steps:

[0056] S1. Start the internal mixer, preheat it at 40°C for 15 minutes, weigh EPDM rubber and natural rubber according to the formula in Table 2, put them in the internal mixer and mix evenly, the internal mixing temperature is 120°C, and internal mixing The time is 3 minutes, then add boron oxide, glass powder, flame retardant, lubricant, anti-aging agent, hydroxyl silicone oil, and calcium oxide to the internal mixer successively and mix for 5 minutes;

[0057] S2, then plasticizer and filler are added in the internal mixer, and mixed again for 5min;

[0058] S3, add sulfur and accelerator and knead for 5 minutes, and after thinning for 2 times, stop the lower film and let the glue dry for 10 ho...

Embodiment 3

[0062] Table 3 is a kind of each raw material and the quality of the protection tube that is used for motor car braking device of embodiment 3

[0063]

[0064] A method for preparing a protective tube for a motor vehicle braking device, specifically comprising the following steps:

[0065] S1. Start the internal mixer, preheat at 40°C for 15 minutes, weigh EPDM rubber and natural rubber according to the formula in Table 3 and put them in the internal mixer to mix evenly. The internal mixing temperature is 120°C. The time is 3 minutes, then add boron oxide, glass powder, flame retardant, lubricant, anti-aging agent, hydroxyl silicone oil, and sodium oxide to the internal mixer and mix for 5 minutes;

[0066] S2, then plasticizer and filler are added in the internal mixer, and mixed again for 5min;

[0067] S3, add sulfur and accelerator and knead for 5 minutes, after thinning for 3 times, stop the next film and let the glue dry for 15 hours;

[0068] S4, after drying the ...

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Abstract

The invention relates to the field of rubber tubes, and particularly discloses a protective tube for a bullet train braking device and a preparation method and an application of the protective tube. The invention discloses the protective tube for the bullet train brake device. The protective tube comprises the following raw materials in parts by weight: 50-65 parts of ethylene propylene diene monomer, 15-25 parts of natural rubber, 8-12 parts of boron oxide, 4-6 parts of glass powder, 3-5 parts of a plasticizer, 5-10 parts of filler, 2-4 parts of a flame retardant, 2-4 parts of a lubricant, 1-3 parts of an anti-aging agent, 1-2 parts of hydroxyl silicone oil, 0.2-0.8 part of an accelerator and 1-2 part of sulfur. The ethylene propylene diene monomer and natural rubber are adopted as main materials, a plasticizer and a filler are added to improve the mechanical properties of the protective pipe, and in order to further improve the reinforcing effect of the plasticizer and the filler, boron oxide is added to the raw materials to improve the connection strength between the rubber and the plasticizer and between the rubber and the filler, thereby achieving the effect of improving the strength of the protective pipe.

Description

technical field [0001] The present application relates to the field of rubber tubes, and more specifically, it relates to a protective tube for motor vehicle braking devices and a preparation method thereof. Background technique [0002] EMUs refer to vehicles equipped with power units in the rail transit system. The brake device of the EMU is a necessary device to ensure the safe operation of the train, so the high-speed EMU puts forward higher requirements for the brake device. Since the kinetic energy of the EMU is proportional to the square of the speed, and under certain braking conditions, the braking power of the train is a cubic function of the speed, so the braking mode of the EMU is often combined with air braking and regenerative braking. . The protection tube is one of the important components of the train air braking system, and is generally installed at the bottom of the train. Its main function is to transmit the air pressure signal and compressed air during...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/16C08L7/00C08L83/04C08K13/04C08K3/38C08K3/40C08K3/06C08K5/12C08K7/26C08K3/34C08K3/22C08K5/18C08K5/09C08K5/03C08K3/32B29C48/09
CPCC08L23/16B29C48/022B29C48/09C08L2203/18C08L2201/02C08L2201/08C08L2205/035C08K2003/2227C08K2003/2206C08K2003/2224C08K2003/222C08L7/00C08L83/04C08K13/04C08K3/38C08K3/40C08K5/12C08K7/26C08K3/34C08K3/06C08K3/22C08K5/18C08K5/09C08K5/03C08K3/346C08K3/32
Inventor 李元州
Owner 余姚市振州工贸有限公司
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