A process method for vulcanization and bonding of shock absorber upper end cover assembly

Abstract

The invention discloses a process method for vulcanization and bonding of an upper end cover assembly of a shock absorber. The upper end cover assembly of a shock absorber includes an outer shell, a skeleton, an inner shell and rubber. The steps of the process method are as follows: Aged natural rubber The skeleton, inner shell and rubber vulcanization form the rubber body; the outer shell is sandblasted and phosphated, and the inner surface is first coated with Chemlok 205 primer and then coated with 252X top glue ; Press the rubber body into the skeleton, then place it at room temperature for 23 to 25 hours, and then put it in an oven at 150°C for 1.5 to 2.5 hours after 23 to 25 hours; riveting bolts and assembling plastic pad. By adopting the above-mentioned technical scheme, the vulcanization and bonding process of the upper end cover of the shock absorber provided by the present invention greatly improves the vulcanized pressure release force of the rubber body, makes the pressure release force of the product reach more than 5000N, and reduces the pressure of the product during use. The number of jumps that occur in the vehicle, thereby improving the NVH performance of the vehicle.

Description

technical field [0001] The invention relates to a process method for vulcanization and bonding of an upper end cover assembly of a shock absorber. Background technique [0002] The traditional rubber and metal frame bonding process on the upper end cover assembly of the shock absorber is to apply adhesive on the metal frame, and then vulcanize to ensure the bonding strength. However, due to structural limitations of this type of product, the shell cannot be directly put into the mold and vulcanized together with the rubber. At present, many manufacturers in the market have not mastered the bonding technology after vulcanization, and directly press the rubber body into the shell and put it on the market, resulting in rubber The pressure-off force between the body and the shell is less than 500N, which is far from meeting the requirements of more than 5000N required by the customer, so that the product will vibrate during use, resulting in abnormal noise. In severe cases, the ...

AI Technical Summary

Problems solved by technology

However, due to structural limitations of this type of product, the shell cannot be directly put into the mold and vulcanized together with the rubber. At present, many manufacturers in the market have not mastered the bonding technology after vulcanization, and directly press the rubber body into the shell and put it on the market, resulting in rubber The pressure-off force between the body and the shell is less than 500N, which is far from meeting the requirements of more than 5000N required by the customer, so that the product will vibrate during use, resulting in abnormal noise. In severe cases, the rubber body will fall off, and the consequences will directly affect the quality of the car. NVH performance, and there are certain safety hazards