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为了提高钢管质量,并相应增强轧管机组的能力,以适应生产质量要求较高的石油管材的需要,我厂216车间于1981年安装了一台由西德曼内斯曼—米尔公司制造的八机架三辊式定径机。这是一种与传统的定、减径机和张力减径机不同的新型定径机。由于采用直流分组传动,因此可以在一定范围内调整轧辊转速,实现微张力定径工艺。这是钢管精轧设备的一项新发展,国外已开始采用。如日本新日铁八幡厂最近投产的16英寸自动式轧管机组中就采用了这种类型的定径机。为了消化引进
In order to improve the quality of the steel pipe and correspondingly enhance the capability of the pipe rolling unit to meet the needs of the petroleum pipe with higher production quality requirements, our factory workshop 216 installed in 1981 a plant made by Sidley Manznez-Mierle Eight-rack three-roll sizing machine. This is a new type of sizing machine that is different from the traditional setting, reducing and tension reducing machines. As a result of DC packet transmission, so you can adjust the roll speed within a certain range, to achieve micro-tension sizing process. This is a new development of steel tube finishing equipment, has begun to adopt abroad. Such as Japan’s Nippon Steel Yawata plant recently put into operation 16-inch automatic mill units on the use of this type of sizing machine. In order to digest the introduction