Product deep processing characteristics of Carbon steel Carbon steel seamless pipe
The total surface area of the Carbon steel seamless pipe after air drawing is increased, while the area of the inner surface layer is reduced. Therefore, a neutralized layer will appear between the inner and outer surface layers, and the outer surface layer, the neutralized layer and all the layers in the middle will be improved. Area, but the outer surface layer is greatly improved. The inner surface layer and the neutralized layer, the inner surface layer is greatly reduced.
The transition characteristics of the area of each layer of the seamless tube during empty drawing affect the unevenness of the deformation of the metal material. One of its characteristics is that the widening of each layer along the wall thickness is of course not the same. Of course, the widening takes the outer surface layer of the Carbon steel seamless pipe as the least, and the inner surface layer of the Carbon steel seamless pipe is larger. Of course, the widening of each layer in the middle is from the outer surface layer. The inner surface layer slowly rises. The second feature is that because of the comprehensive relationship, each layer of the Carbon steel seamless pipe cannot be widened differently during deformation. Therefore, each layer must restrict each other.
Because of course the width of the metal material on the surface layer is smaller than that of the metal material on the inner layer, the surface layer must suffer from the restriction effect of the inner layer when deformed. The specific width ratio is of course widened, and the thickness is reduced because of the increase and widening. Conversely, the widening of the inner layer is blocked by the surface layer, and the specific widening ratio is of course smaller than that of widening, but the thickness is increased.
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