What is an O-type hydraulic seal?“tensile stress”? First of all, we must clear that hydraulic seals (Hydraulicseal) are commonly used sealing rings in chemical plants and industrial production industries. Stress at definite elongation refers to the load on the cross-section of the enterprise that needs to be released by the tensile stress of the plastic product test piece, which is the material index value of the rubber product commodity (standard new item). 1. In the natural environment of the engineering project, the hazards of hydraulic seals“tensile stress”What are the elements? 1. The larger the relative molecular mass of the vulcanized rubber, the greater the tensile stress; 2. The interaction force between the molecular structures of the vulcanized rubber is large, and the tensile stress is high; 3. The blending of rubber and plastic products can improve the tensile stress and strength; 4. Relatively When the molecular weight is narrow, the tensile stress and strength decrease; 5. The tensile stress and strength decrease with the increase of the amount of softener; 6. The tensile stress and strength increase with the increase of the crosslinking density. The traditional vulcanized rubber management system can obtain higher tensile stress and strength. 7. The tensile stress and strength increase with the decrease of filler particle size, increase with the increase of structure degree and surface activity, and increase with the increase of filler usage. It is not difficult to see that the general tensile stress is 100%, 200%, 300%, and 500% tensile stress. In order to double the length of the specimen with a section of 1 square centimeter, a load of 490N (50kg force) is required, and its 100% constant elongation stress is 490Pa (50kg force/c㎡). Second, what are the elements of tensile strength that endanger the specifications and types of hydraulic seals? 1. The tensile strength of vulcanized rubber with small relative molecular mass increases with the increase of relative molecular mass; 2. The tensile strength of vulcanized rubber with a narrow relative molecular mass is higher; 3. The tensile strength of vulcanized rubber increases with the increase of grain size of vulcanized rubber ; 4. In the case of optical activity on the carbon chain, the tensile strength increases with the increase of the interaction force between the molecular structures; 5. After the molecular structure chain of vulcanized rubber tends to increase, the tensile strength in the parallel plane direction increases, and the tensile strength in the vertical direction increases. 6. The tensile strength decreases with the increase of the chemical cross-linking bond energy, and the highest value appears with the increase of the cross-linking density; 7. The surface layer of the hydraulic seal material contains many functional groups with oxygen content, and its tensile strength, tear resistance High compressive strength and elongation; 8. The filler particles are small, the area is large, and the surface activity is large, so the reinforcement effect is very good, and the tensile strength can also be improved according to the blending of materials; 9. When the amount of softener exceeds 5 parts, It will reduce the tensile strength of the vulcanized rubber seals
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