▎ 摘　　要

NOVELTY - Rubber sealing ring comprises 50-80 pts. wt. modified rubber, 2-4 pts. wt. vulcanizing machine, 1-3 pts. wt. accelerator, 2-3 pts. wt. zinc oxide, and 1-7 pts. wt. and cross-linking agent. USE - Rubber sealing ring. ADVANTAGE - The rubber sealing ring has good heat insulation and vibration absorption effect, high compression strength, light weight, foaming polystyrene is added to the rubber, which can improve the elasticity of the material. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing rubber sealing ring, which involves weighing the material according to parts by weight for further use, using clean water to clean vulcanizing, repeatedly washing for 3-5 times, then drying for the grinding tool until there is no moisture residue on the grinding tool, standing and cooling to normal temperature, adding the material prepared into the reaction kettle, preheating to120-130degrees Celsius, then stirring at the rotating speed of 60-80r/min, until the mixture has no obvious colour difference, putting the material mixed into the internal mixer, under the condition of the temperature is 110-120degrees Celsius, mixing for 20-30min, then under the condition of the temperature of 120-130degrees Celsius, continuously mixing for 5-7min, then discharging the glue, after refining by the open mill, lower sheet, cooling to obtain the rubber material, putting the metal framework in the mold, then putting the rubber material into the vulcanizing mould, pressing and pressurizing the vulcanizing mould by the hydraulic device, vulcanizing and moulding the rubber material in the vulcanizing mould to obtain the sealing ring rough blank, demoulding and taking out the sealing ring rough blank, and grinding the sealing ring rough blank by the grinding device, trimming the rough edge, removing burr, obtaining the sealing ring finished product.