摘要
为了实现套管性能与成本的合理匹配,采用新型焊管热机械控制工艺(高频电阻焊+焊管热张力减径+余热在线快速冷却)开发了一种低能耗、轻量化的BSG-65钢级Φ139.7 mm×9.17 mm SEW套管。试验评价了试制套管的理化性能、全尺寸实物性能等多项性能。结果显示,产品的屈服强度和抗拉强度平均值分别达到490 MPa和692 MPa,0℃时1/2尺寸母材和焊缝横向冲击功平均值分别达到42 J和35 J,螺纹连接强度平均值达1 706 kN,抗内压至失效强度平均值达77.6 MPa,抗外压挤毁强度平均值达60.1 MPa,产品的各项性能达到相关技术要求。
In order to achieve the reasonable matching of casing performance and cost, it adopted a new type of welded pipe thermal mechanical control process（thermal stretch-reducing＋waste heat online fast cooling）to develop a low power consumption, light weight BSG-65 steel grade Ф139.7mm×9.17mm SEW casing. The experiment evaluated the physical and chemical properties of the trial-manufactured casing, full size physical performance and so on. The results showed that the average value of yield strength and tensile strength was 490 MPa and 692 MPa respectively ; the average value of transverse absorbed energy for 1/2 size base metal and weld seam at 0 ℃ respectively reached 42 J and 35 J ; the average strength of the threaded connection reached 1 706 kN; the average value of resistance to internal pressure to failure reached 77.6 MPa; the average value of resistance to external pressure to failure reached 60.1 MPa,the various property of product can meet relevant technical requirements.
作者
韦奉
何石磊
李远征
梁航
李敬波
WEI Feng HE Shilei LI Yuanzheng Liang Hang Li Jingbo(Chinese National Engineering Research Center for Petroleum and Natural Gas Tubular Goods, Baoji 721008, Shaanxi, China Baoji Petroleum, Steel Pipe Co., Ltd., Baoji 721008, Shaanxi, China Baoji OCTG Company of Baoji BSG Group, Baoji 721008, Shaanxi, China)
出处
《焊管》
2017年第6期25-29,共5页
Welded Pipe and Tube
关键词
套管
热机械控制工艺
热张力减径电阻焊
BSG-65
casing
thermo mechanical control process
hot stretch-reducing electric welding
BSG-65
