Contact problems of the theory of roller squeezing of leather

The article deals with the main contact problems of the theory of roller squeezing of leather. Mathematical models of the shape of the roll contact curves, of friction stresses and the regularities of the distribution of contact stresses along the roll contact curves have been developed. A formula was derived that describes the model of friction stresses. It was revealed that the shapes of the roll contact curves of the two-roll module do not depend on the change in the moisture content of hides in the contact zone of the rollers. It was established that the model of friction stresses in a two-roll module for pressing leather does not depend on the inclination of the material layer fed to the center line.

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