The basic properties of the rubber roller Rice Huller(LIANGGONG) (how much the amount of grain rolling) depends on the physical and mechanical properties of the external rubber compound, the performance is as follows:

(1) Breaking strength: Strength refers to the ability of the material to resist damage under external force. Strength refers to the ratio of the relay force of the rubber test piece to the fracture and the cross-sectional area of ??the initial test piece. The unit is MPa ( Kg/Cm2). For the rubber roller, this is an important mechanical property. The rubber roller has a variety of external forces in the process of milling the rice, and it is used for high-speed and vigorous mechanical movement. Therefore, the rubber must have high strength, otherwise it will Reduce the use value of the rubber roller.

(2) Elasticity: It is one of the most important properties of rubber materials. It refers to the deformation of rubber under the action of external force, and the external force is removed and restored to its original state. There are many indicators for measuring elasticity, such as: constant stress elongation, elongation, tearing permanent deformation and heat generation. For the rubber roller, the elasticity is moderate. Although high elasticity can improve the ability of shelling, reduce the phenomenon of bursting waist and less broken rice, but the elasticity is too high, it is easy to produce large elastic deformation, increase the heat of formation, increase the working temperature of the rubber roller, and reduce other mechanical and physical properties of rubber. For example, the hardness will decrease and cannot be used. The elasticity is too low, the hardness is too high, the wear resistance is poor, and it is easy to cause damage.

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