Natural rubber threaded expansion joint

The threaded rubber soft joint is connected by the two ends of the rubber body with metal fasteners, installed at the pipeline connection, which can play the purpose of displacement compensation and noise reduction, balancing the centrifugal force, reciprocating inertia force, moment of inertia and other disturbances of mechanical equipment. The main role is to use the flexibility of the rubber spheres of bendable rubber joints to compensate for pipeline settlement caused by long-distance ground settlement problems, poorly sealed pipes and axial concentricity offset problems, especially in cold regions and areas with large temperature differences using bendable rubber joints, if you want to understand what natural rubber can do? It is necessary to understand the characteristics of natural rubber first.
Natural rubber has excellent overall physical and mechanical properties Natural rubber has good elasticity at room temperature. Natural rubber is unsaturated rubber, easy to vulcanization reaction with vulcanizing agent, bromine oxidation and cracking reaction with oxygen and ozone, chlorination and chemical reaction with halogen, chemical reaction under the action of catalyst and acid, etc. The medium refers to oil, liquid chemical substances, etc. Natural rubber is not resistant to the medium of cyclohexane, gasoline, benzene, etc., insoluble in polar acetone, ethanol, etc., insoluble in water, resistant to 10% hydrofluoric acid, 20% hydrochloric acid, 30% sulfuric acid, 50% sodium hydroxide, etc. It is not resistant to concentrated strong acid and oxidizing potassium permanganate, heavy acid potassium, etc.
The characteristics of natural rubber. High elasticity rubber high resilience rubber is configured to maintain a high raw rubber content and full vulcanization. The techniques for preparing and selecting vulcanizing agents are: ① use the right amount of soft carbon black, MT and FT is better; ② appropriate amount of sulfur. Heat-resistant rubber heat-resistant rubber configuration essentials is to use sulfur-free vulcanizing agent or effective sulfur system for vulcanization, and the selection of compounding agent vulcanizing agent skills are: ① instead of sulfur; ② appropriate increase in zinc oxide; ③ the use of heat-resistant fillers, such as asbestos powder, black lead powder, etc.