摘要
介绍某公司Ф100mm三辐连轧管机组的建设情况、产品大纲、工艺方案和主要设备选型:分析认为:该套机组轧制的钢管几何尺寸精度高,可以轧制最薄壁厚3.5 mm的成品钢管;投产两个月生产节奏已经达到35 s/支,接近预期目标;钢管切损率在3%~5%.实际成材率90.0%~90.5%,需要控制钢管中间掉队数量,进一步提高成材率;采用隧道式牌坊的连轧管机.换机架有难度;换覘用时较长.后期需要优化换棍机构降低换辐难度.缩短换辐时间;二期热处理生产线的投产,可以大幅度提高钢管的附加值.
Elaborated here in the article is the construction status of a domestic Ф100mm 3-roll mandrel pipe mill line,involving such aspects as the product mix,the technological schedule and the characteristics of the major equipment units as selected.It is regarded via relevant analysis that the said mill line is capable of producing steel tubes with high geometric dimensional tolerances,and producing finished tubes with minimum wall thickness up to 3.5 mm.After two month continuous operation,the production cycle of the mill line has been up to 35 s/piece,being very close to the expected target.The steel tube cropping loss rate is within 3%~5%,while the actual yield is 90.0%-90.5%,which indicates that the amount of the straggling steel tubes has to be well controlled so as to further enhance the yield.Finally it is pointed out that the existing tunnel-shaped frame of the mill causes rather difficult and time-killing roll-stand change operation of the mill,and accordingly the roll-changeover device has to be optimized to reduce the said difficulty and the roll changing time.
作者
王增海
林震
高峰
高和平
李利斌
白志峰
张瑞林
考然
WANG Zenghai;LIN Zhen;GAO Feng;GAO Heping;LI Libin;BAI Zhifeng;ZHANG Ruilin;KAO Ran(Steel Pipe Co.,Inner Mongolia Baotou Steel Union Co.,Ltd.,Baotou 014010,China)
出处
《钢管》
CAS
2020年第4期22-27,共6页
Steel Pipe
关键词
无缝钢管
连轧管机
小直径
筒形牌坊
seamless steel tube
mandrel pipe mill line
small-sized:tunnel-shaped frame
