Sizing material formulation of low-temperature resistant automobile constant velocity universal joint seal cover

Abstract

The invention relates to a sizing material formulation for manufacturing an automobile constant velocity universal joint seal cover, which takes chloroprene rubber as the main component and comprises the following component PHR (namely the adding quantity relative to 9,000 grams of the chloroprene rubber): 9,000 grams of the chloroprene rubber (domestic CR322), 1,000 grams of nitrile-butadiene rubber (N220S), 1,000 grams of semi-reinforcing furnace black, 1,000 grams of high abrasion furnace black, 1,000 grams of spray carbon black, 500 grams of titanate powder, 1,000 grams of zinc oxide, 1,000 grams of white carbon black, 1,500 grams of dioctyl sebacate, 500 grams of butyl oleate, 400 grams of magnesium oxide, 200 grams of 4010NI anti-aging agent, 90 grams of NA-22, 50 grams of TMTD, 66 grams of paraffin, 50 grams of stearic acid and 13 grams of sulfur, wherein the total weight is 18,369 grams. The quantity of the formulation can be increased and decreased in proportion. The automobile constant velocity universal joint seal cover prepared according to the sizing material formulation has the advantages of good low temperature resistance, low brittle temperature, good comprehensive performance and long service life.

Description

technical field [0001] The invention relates to a compound formula for a rubber product, in particular to a compound compound formula for manufacturing a sealing cover of a constant velocity universal joint of an automobile. Background technique [0002] The automobile constant velocity universal joint assembly is a mechanical component installed between the differential or the final reduction gear and the wheel to transmit motion and torque at an instantaneous angular velocity ratio equal to 1, and can synchronously change the working angle and perform telescopic sliding. Consists of constant velocity universal joint, intermediate shaft and other parts. The sealing cover is one of the components of the constant velocity universal joint assembly, which is combined with the constant velocity universal joint outer casing and the intermediate shaft, and is used to prevent sundries from entering the constant velocity universal joint cavity and to store grease sealing parts . T...

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Problems solved by technology

[0004] The sealing cover rubber material in the prior art mainly uses neoprene as the main component, and the sealing cover with the domestic neoprene as the main component has the following defects: poor low temperature resistance, high embrittlement temperature, at room temperature, high temperature, immersion 1 No. standard oil and other environments have large changes in the rate of change in tensile strength and elongation at break, and the service life of the seal cover is not long, which objectively reduces the service life of the automotive constant velocity universal joint assembly