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Rubber for intermediate support of transmission shaft and preparation method of rubber

A technology of intermediate support and transmission shaft, applied in the field of rubber for intermediate support of transmission shaft and its preparation, can solve the problems of poor stability in use and short service life, and achieve the effects of improved durability and cold resistance, and good regularity

Active Publication Date: 2017-02-01
NINGBO YONGXIN AUTO COMPONENTS MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] There is low-temperature dynamic durability in the prior art transmission shaft middle support rubber which can only achieve 300,000 times (see image 3 ), the dynamic durability after high temperature aging can only reach 350,000 times (see figure 1 ), so there are problems of short service life and poor stability

Method used

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  • Rubber for intermediate support of transmission shaft and preparation method of rubber
  • Rubber for intermediate support of transmission shaft and preparation method of rubber
  • Rubber for intermediate support of transmission shaft and preparation method of rubber

Examples

Experimental program
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Effect test

Embodiment 1

[0028] A preparation method of rubber for transmission shaft intermediate support, which comprises the following steps: 1) Rubber mixing: first weigh each component according to the following mass percentages: raw rubber is 56%, filler is 30%, plasticizer is 2.5%, the accelerator is 3.5%, the anti-aging agent ODA is 4.0%, the anti-aging agent MB is 0.9%, the antioxidant-1178 is 3.1%, and the raw rubber is neoprene DCR36; then park the raw rubber for 48 hours; followed by mixing with other components except accelerators; after mixing, stop for 48 hours and add accelerators for mixing; 2) vulcanization: vulcanization temperature is 170 ° C, vulcanization time is 10 minutes, clamping pressure is 15 MPa.

Embodiment 2

[0030] A preparation method of rubber for transmission shaft intermediate support, which comprises the following steps: 1) Rubber mixing: first weigh each component according to the following mass percentages: raw rubber is 50%, filler is 40%, plasticizer is 1.5%, the accelerator is 2.5%, the anti-aging agent ODA is 3.0%, the anti-aging agent MB is 0.9%, the antioxidant-1178 is 2.1%, and the raw rubber is neoprene DCR36; then the raw rubber is masticated and parked for 22 hours; followed by mixing with other components except accelerators; after mixing, stop for 23 hours and add accelerators for mixing; 2) vulcanization: vulcanization temperature is 160 ° C, vulcanization time is 16 minutes, clamping pressure is 25 MPa.

Embodiment 3

[0032] A preparation method of rubber for transmission shaft intermediate support, which comprises the following steps: 1) Rubber mixing: first weigh each component according to the following mass percentages: raw rubber is 53%, filler is 33%, plasticizer is 2.5%, 3.0% accelerator, 4.0% antioxidant ODA, 0.8% antioxidant MB, 3.7% antioxidant-1178, the raw rubber is neoprene DCR36; hours; followed by mixing with other components except accelerators; after mixing, stop for 24 hours and add accelerators for mixing; 2) vulcanization: vulcanization temperature is 165 ° C, vulcanization time is 13 minutes, clamping pressure is 20 MPa.

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Abstract

Rubber for an intermediate support of a transmission shaft is prepared from, by mass, 50%-65% of raw rubber, 30%-40% of filling agent, 1.5%-2.5% of plasticizer, 2.5%-3.5% of accelerant, 1.0%-4.0% of anti-aging agent ODA, 0.5%-0.9% of anti-aging agent MB and 1.5%-4.0% of antioxidant-1178. The raw rubber is chloroprene rubber DCR36. A preparation method of the rubber for the intermediate support of the transmission shaft comprises the following steps of 1, rubber refining, wherein all the components are weighed according to the following mass percent, then still standing is carried out for 22-48 hours after raw rubber plastifying, then the mixture and other components except for the accelerant are mixed, still standing is carried out for 22-48 hours after mixing, and then the accelerant is added for mixing; 2, vulcanizing, wherein the vulcanization temperature ranges from 160 DEG C to 170 DEG C, the vulcanization time ranges from 10 min to 16 min, and the mode locking pressure ranges from 15 MPa to 25 MPa. Compared with the prior art, the rubber has the advantages of being long in service life and good in use stability.

Description

technical field [0001] The invention belongs to the technical field of rubber preparation, in particular to a rubber for intermediate support of a transmission shaft and a preparation method thereof. Background technique [0002] There is low-temperature dynamic durability in the prior art transmission shaft middle support rubber which can only achieve 300,000 times (see image 3 ), the dynamic durability after high temperature aging can only reach 350,000 times (see figure 1 ), so there are problems of short service life and poor stability in use. Contents of the invention [0003] Aiming at the above problems, the present invention provides a rubber for intermediate support of a transmission shaft with a long service life and good stability in use. [0004] The technical solution used by the present invention to solve the above problems is to provide a rubber for transmission shaft intermediate support, which includes the following components in mass percentage: [00...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L11/00C08K5/378C08K5/18C08K5/526
CPCC08K5/18C08K5/378C08K5/526C08L2201/08C08L11/00
Inventor 刘守宇
Owner NINGBO YONGXIN AUTO COMPONENTS MFG