Suspension buffer dust cover and preparation method thereof
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A technology of dust cover and suspension, which is applied in the direction of suspension, cantilever installed on the pivot, transportation and packaging, etc. Low heat resistance, poor ozone resistance and other problems, to achieve good heat aging performance, good elasticity, and small permanent deformation
Inactive Publication Date: 2015-07-08
ANHUI ZHONGDING SEALING PARTS
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Problems solved by technology
When this type of product was made of natural rubber, the dust cover part was prone to failure due to low heat resistance and ozone resistance; when it was made of EPDM rubber, the shock absorption performance and fatigue durability of the spring pad part The performance fails to meet the requirements and fails
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Embodiment 1
[0040] Embodiment 1: The suspension buffer dustproof cover of this embodiment comprises the following components in parts by weight:
[0041]
[0042]
[0043] The preparation method of the suspension buffer dustproof cover of the present embodiment comprises the following steps:
[0044] (1) By weight, 100 parts of natural rubber, 50 parts of carbon black N330, 2 parts of paraffin wax B-10, 8 parts of fatty acid, 5 parts of indirect method zinc oxide, 1 part of stearic acid, 2 parts of anti-aging agent RD, anti-aging 2.5 parts of agent 4020, 1 part of accelerator DTDM, 1 part of accelerator CZ, 0.5 parts of insoluble sulfur IS-60, 5 parts of rhine plastic, 0.5 parts of anti-scorch agent CTP, and 0.8 parts of anti-sulfurizing reducing agent SR534D. Mixing, mixing 30min, obtained natural rubber masterbatch;
[0045] 100 parts of EPDM rubber, 50 parts of carbon black N330, 2 parts of paraffin wax B-10, 8 parts of fatty acid, 5 parts of indirect zinc oxide, 1 part of stear...
Embodiment 2
[0049] Embodiment 2: The suspension buffer dustproof cover of this embodiment comprises the following components in parts by weight:
[0050]
[0051] In this embodiment, the preparation method of the suspension buffer dustproof cover is the same as that in Embodiment 1.
Embodiment 3
[0052] Embodiment 3: The suspension buffer dustproof cover of this embodiment comprises the following components in parts by weight:
[0053]
[0054]
[0055] In this embodiment, the preparation method of the suspension buffer dustproof cover is the same as that in Embodiment 1.
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Abstract
The invention provides a suspension buffer dust cover and a preparation method thereof. The suspension buffer dust cover comprises, by weight, the natural rubber 20 parts of, 80 parts of ethylene propylene terpolymer, 50-90 parts of carbon black, 2-10 parts of a lubricant, 2-10 parts of fatty acid, 4.5-8.5 parts of a surfactant, 0.6-1 part of peroxide, 0.5-1 part of sulfur, 2-4 parts of a promoter and 3-7 parts of an antioxidant. The suspension buffer dust cover of the invention has the advantages of good elasticity, good mechanical strength, small permanent deformation, wear resistance and excellent heat resistance. A preparation method is as below: respectively mixing natural rubber and ethylene propylene terpolymer, and blending the two, so as to achieve co-vulcanization of rubber compound with a composite vulcanization system containing sulfur, peroxide and promoter. The dust cover parts of the prepared suspension buffer dust cover have good heat resistance and ozone resistance, and a buffer spring pad part also has good shock absorption performance and anti-fatigue performance, and solves the defects of integrated structure of the spring pad and the dust cover.
Description
technical field [0001] The invention relates to the technical field of automobile chassis suspension systems, in particular to a suspension buffer dustproof cover and a preparation method thereof. Background technique [0002] The chassis suspension system of a car is one of the key components that affect the comfort of the car. Its function is to transmit the force and moment of the frame and the axle; ease the impact load transmitted to the frame from the road surface, and attenuate the vibration of the load system caused by it , to ensure the ride comfort of the car; to ensure that the wheels have ideal motion characteristics when the road surface is uneven and the load changes, and to ensure the handling stability of the car; the suspension buffer dust cover is used for the chassis suspension system, when the car turns, the bump In the process of road conditions and other sports, it mainly plays the role of support, positioning, cushioning, vibration absorption and noise...
Claims
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