实验表明，直径缩小量随减径量和模角的增大而增大；
The experiment shows that the magnitude of dia. sinking is increased with the increase of reduction and die entry angle;
文章介绍了炉辊的轴向膨胀量、相对间隙、轴径实际温度及高温氧化减径量。
The paper introduces the axial inflation volume, relative space, temperature of axle neck and high temperature oxidized sizing reduction of rollers.
钢管在减径过程中，减径量一定时，影响其增壁量的主要因素是钢管的轧制温度和张力系数等。
During the process of reducing, in case of constant diameter reduction, the major elements responsible for tube wall increase are the rolling temperature and the stretch factor, etc.
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