型滚筒熨平机为双级熨压．其压力可由的液压系统控制，可实现连续调整。
Two pressure rollers are adopted and the ironing pressure which is controlled by hydraulic system can be adjusted freely.
据此公式可以计算要获得最小扭矩的最佳熨压次数，这对指导攻丝中切削参数的选择有一定的指导意义。
Accordingly, the formula can calculate the minimum torque to get the best ironing times, which is tapping the cutting parameters to guide the choice of a certain significance.
要领：在熨太阳时，速度愈慢越好，并且双掌要稍用力向内合压。
Main point: when pressing "Tai Yang", more slower more better. And both the roots of palms pressing cooperatively to inside with slightly strength.
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