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Sealing sleeve for locomotive damper and preparation method thereof

A technology for shock absorbers and sealing sleeves, which is applied in the direction of shock absorbers, springs/shock absorbers, shock absorbers, etc., and can solve the problems of inability to meet service life requirements, low flex resistance, oil resistance, low temperature resistance, and Thermal aging performance and other issues

Inactive Publication Date: 2010-06-02
QINGDAO TKS SEALING IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The existing sealing sleeves used for locomotive shock absorbers have low flex resistance, oil resistance, low temperature resistance, and heat aging resistance; the reason is that the sealing sleeves use materials with hardness, tensile strength, elongation at break The excellent properties of elongation, heat aging resistance, T32 hydraulic oil resistance, flex resistance and low temperature resistance cannot meet the 18-month service life requirements of the product

Method used

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  • Sealing sleeve for locomotive damper and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] A sealing sleeve for a locomotive shock absorber is prepared from the following raw materials in parts by weight:

[0039] 80 parts of hydrogenated nitrile rubber, 4 parts of zinc peroxide,

[0040] 1 part of antioxidant 445, 10 parts of semi-reinforcing carbon black,

[0041] 5 parts of white carbon black, 5 parts of plasticizer TP759,

[0042] Accelerator CZ 0.5 part, 1 part.

[0043] A preparation method for a sealing sleeve of a locomotive shock absorber, comprising the steps of: mixing 80 parts of hydrogenated nitrile rubber, 4 parts of zinc peroxide, 1 part of anti-aging agent 445, and 10 parts of semi-reinforcing carbon black with an internal mixer , 5 parts of white carbon black, 5 parts of plasticizer TP759, 0.5 part of accelerator CZ and 1 part of accelerator TMTD to prepare mixed rubber by the method in the following table;

[0044] operating procedures

It takes time, min

Cumulative time, min

1. The roller distance is set at 4 ...

Embodiment 2

[0048] A sealing sleeve for a locomotive shock absorber is prepared from the following raw materials in parts by weight:

[0049] 120 parts of hydrogenated nitrile rubber, 10 parts of zinc peroxide,

[0050] 4 parts of antioxidant 445, 40 parts of semi-reinforcing carbon black,

[0051] 20 parts of white carbon black, 25 parts of plasticizer TP759,

[0052] 1 part of sulfur, 3 parts of accelerator CZ,

[0053] Accelerator TMTD 4 parts.

[0054] A preparation method for a sealing sleeve of a locomotive shock absorber, comprising the steps of:

[0055] 120 parts of hydrogenated nitrile rubber, 10 parts of zinc peroxide, 4 parts of antioxidant 445, 40 parts of semi-reinforcing carbon black, 20 parts of white carbon black, 25 parts of plasticizer TP759, 1 part of sulfur, 3 parts of 1 part of accelerator CZ and 4 parts of accelerator TMTD prepare compounded rubber by the following table method;

[0056] operating procedures

It takes time, min

Cumulative time, mi...

Embodiment 3

[0061] A sealing sleeve for a locomotive shock absorber is prepared from the following raw materials in parts by weight:

[0062] 100 parts of hydrogenated nitrile rubber, 8 parts of zinc peroxide,

[0063] 1.5 parts of antioxidant 445, 30 parts of semi-reinforcing carbon black,

[0064] 15 parts of white carbon black, 20 parts of plasticizer TP759,

[0065] 0.2 parts of sulfur, 1 part of accelerator CZ,

[0066] Accelerator TMTD 2 parts.

[0067] A preparation method for a sealing sleeve of a locomotive shock absorber, comprising the steps of:

[0068] Mix 100 parts of hydrogenated nitrile rubber, 8 parts of zinc peroxide, 1.5 parts of antioxidant, 30 parts of semi-reinforcing carbon black, 15 parts of white carbon black, 20 parts of plasticizer TP759, 0.2 parts of sulfur, 1 part of Accelerator CZ, 2 parts of accelerator TMTD prepare mixed rubber by the following method;

[0069] operating procedures

It takes time, min

Cumulative time, min

1. Use ...

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Abstract

The invention relates to a sealing sleeve for a locomotive damper, which is prepared from the following raw materials in parts by weight: 80-120 parts of hydrogenated nitrile butadiene rubber, 4-10 parts of zinc peroxide, 1-4 parts of antioxidant 445, 10-40 parts of semi-reinforced carbon black, 5-20 parts of white carbon black, 5-25 parts of plasticizer TP759, 0-1 part of sulfur, 0.5-3 parts of accelerant CZ and 1-4 parts of accelerant TMTD. The sealing sleeve which is produced by adopting the raw materials and processes of the invention and used for the locomotive damper has the advantages of excellent performance, high flex property, T32 hydraulic oil resistance, high temperature aging resistance, and favorable low temperature resistant performance, and the product can keep excellent performance under hostile use environment and greatly meets usage requirements. The invention has simple and reasonable processes as well as unique and novel raw material proportioning.

Description

technical field [0001] The invention relates to a sealing sleeve and a preparation method thereof, in particular to a sealing sleeve used for a locomotive shock absorber and a preparation method thereof. Background technique [0002] The existing sealing sleeves used for locomotive shock absorbers have low flex resistance, oil resistance, low temperature resistance, and heat aging resistance; the reason is that the sealing sleeves use materials with hardness, tensile strength, elongation at break The excellent properties of elongation, heat aging resistance, T32 hydraulic oil resistance, flex resistance and low temperature resistance cannot meet the 18-month service life requirements of the product. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a sealing sleeve for a locomotive shock absorber; the sealing sleeve has improved flex resistance, oil resistance, low temperature resistance, and heat aging resistance....

Claims

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Application Information

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IPC IPC(8): C08L9/02C08K13/02F16F9/32B29D99/00
Inventor 杜喜林
Owner QINGDAO TKS SEALING IND
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