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由西安重型机械研究所和上海制伞五分厂共同设计,西安煤矿设备厂制造的Φ10～17毫米直缝焊管机组,于1987年4月完成设备安装,并经五个月的试生产后10月20日在上海制伞五分厂进行了竣工验收。到会者一致认为:该机组的总体设计是成功的,机组操作和焊接工艺是过关的。设备经几个月的调试和试生产已经正常生产,该设备采用了双半径孔型设计,并以底线为基准进行调整。采用此法能生产如此质量好的小直径薄壁管,在国内属先进水平。
Xi’an Heavy Machinery Research Institute and the Shanghai umbrella five plants jointly designed, Xi’an Coal Mine Equipment Factory manufactured Φ10 ~ 17 mm longitudinal welded pipe unit, in April 1987 to complete the installation of equipment, and after five months of trial production 10 On January 20, the fifth factory in Shanghai made an acceptance inspection. The participants agreed that: The overall design of the unit is successful, the unit operation and welding process is a clearance. After several months of commissioning and commissioning, the unit is already in production. The unit features a double radius pass design and is adjusted to the baseline. This method can produce such a good quality of small diameter thin-walled tube, is an advanced level in the country.