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在厚壁不锈钢管的冷却过程中,由于热传导等因素影响的温度不均主要表现在管材的头尾部,这点可应用同板带相似的方法得到改善,而由于管体在变角度辊道上运动状况的特殊性,冷却过程中,管体上出现了螺旋形温度不均现象,在讨论中我们分别对管体的运动状态及冷却器对钢管冷却过程中流体留下的冷却迹线做了分析,从分析中发现,久久香蕉网国产免费:不锈钢管变角度辊道上钢管的冷却过程中的主要影响因素包括:输送辊辊径,钢管管径,输送辊辊面倾角,辊体旋转角度及辊速以及管体周向冷却能力的分布状况,而造成管体上螺旋形温度不均现象的主要原因是由于钢管周向上冷却能力的不均匀分布,这一影响可以通过改善冷却器,输送辊辊形等设备的设计和布置情况,以及提高出定径机前钢管的炸制精度给与消除。
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xiayipian:meiyoule