论文部分内容阅读
我国和德国德马克公司(MDH)为大冶钢厂联合设计、制造的φ170毫米无缝钢管热轧生产线,于1993年7月30日在大冶钢厂全部试轧成功。整个生产线达到了当代世界80年代末的先进水平。 大冶钢厂φ170毫米无缝钢管厂项目,是国家“八五”期间重点工程之一,是我国以生产轴承管为主的唯一的高精度无缝钢管生产基地。设计能力为年产各种规格的高精度无缝钢管10万吨,钢管外径范围φ20～180mm,壁厚范围2.5～50mm,外径偏差小于±0.5％,壁厚偏差小于±5％。 该热轧生产线主要用来生产高精度的滚珠轴承钢管,以及各种碳素钢和合金结构钢管。 锥形穿孔机、阿塞尔轧管机、十二机架二辊式减
China and Germany Demark Company (MDH) for Daye Steel jointly designed and manufactured φ170 mm seamless hot-rolled steel production line in July 30, 1993 at Daye Steel all the successful trial rolling. The whole production line has reached the advanced level of the late 1980s in the world. Daye Steel φ170 mm seamless steel pipe plant project is the country during the “Eighth” one of the key projects in China to produce the only bearing the main high-precision seamless steel pipe production base. The designed capacity is 100,000 tons of high-precision seamless steel tubes with annual output of φ20 ~ 180mm, wall thickness range of 2.5 ~ 50mm, OD deviation of less than ± 0.5% and wall thickness deviation of less than ± 5%. The hot-rolled production line is mainly used to produce high-precision ball bearing steel pipe, and a variety of carbon steel and alloy steel pipe. Cone piercing machine, Assel tube rolling machine, twelve-frame two-roll reduction