Rubber assembly for booster of automobile brake system and its manufacuturing process

• Main Authors: XIA DINGHU, GUO CHENGXIN, MA XIAOPENG, CAI PEILIANG, YUAN YUHU, LAN ZEJUN
• Format: Patent
• Language: Chinese; English
• Published: 02.07.2008
• Subjects: ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OFVEHICLES; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES; VEHICLES IN GENERAL

The present invention relates to sealing rubber assembly for booster of automobile brake system and its making process. The materials include styrene butadiene rubber, carbon black, dioctyl phthalate, indirectly prepared zinc oxide, stearic acid, antiager, sulfur S-80, vulcanizing agent DTDM and promoter in certain weight proportion. The making process includes mixing the materials and synthesizing the rubber in a Banbury mixer; roll mixing the rubber material in a blending roll to form and vulcanizing in a vulcanizer at the pressure of 120-160 Kgf/sq cm and temperature of 190-200 deg.c for 80-100 sec. The product of the present invention has high tensile strength, great elongation, high tear strength, etc.