Short-stress-path rolling mill: It is assembled with four screws in series, with short stress path and great rigidity. The upper roller and lower roller can be adjusted symmetrically without changing the rolling center. Center distance adjusting range of two rollers: 0~110mm. By equipping with independent hydraulic station, it is easy and convenient to lift cardan shaft and change roller. Powered by DC motor, it has a wide range of speed regulation. Most of short-stress-path rolling mill lines are H/V type, which can process untwisted rolling in the whole line. Rough rolling and intermediate rolling can meet the requirements on rolling big billets and improving rolling precision, finish rolling is mainly responsible for improving rolling precision and speed (highest: 18m/s).
Pre-stressed path rolling mill: Before rolling, the prestressing force is applied to the rolling mill, which can offset the deformation of a part of the mill during rolling and improve the rigidity of the rolling mill. This type of mill is called a Prestressed Rolling mill. Applying the prestressing force to the rolling mill makes the rolling mill in the stress state before rolling. When rolling, under the action of rolling force, the working frame of rolling mill and the parts on it must produce elastic deformation. Rolling base elastic deformation is mainly composed of the following parts: elastic elongated frame column, beam bending elasticity, compression pressure screw and nut elastic compression, bearing and bearing elastic, elastic bending and roll elastic flattening. Furthermore, the rigidity of the rolling mill is enhanced and the dimensional accuracy of the rolling product is improved.
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