Process optimization on horizontal casting for 150mm round billet of drill pipe steels;
水平连铸ф150mm钻杆钢工艺优化
The Ф150mm drill pipe steel was produced by horizontal continuous casting process,although the production was smooth,the casting billets have serious ovality.
采用水平连铸工艺生产ф150mm规格钻杆钢时,结晶器锥度前段铜套按2。
The S135 drill pipe steel was selected as the research object in the paper;the oxygen corrosion and corrosion fatigue be.
本文选用S135钻杆钢作为研究对象,进行钻杆钢的氧腐蚀和腐蚀疲劳行为研究。
Hydrogen permeation coefficient and diffusible hydrogen content in drill pipe steel S135 during cathodic charging with hydrogen were studied by an electrochemical method,and the hydrogen induced cracking(HIC) threshold stress of the steel was investigated using constant load tests.
通过电化学渗氢技术与恒载荷拉伸试验方法,研究了不同充氢电流密度下S135钻杆用钢的氢扩散系数、试样中的可扩散氢浓度及其氢致开裂门槛应力。
5%CH3COOH+saturated H2S water solution) as per Specification NACE TM 0177-2005,standard HIC evaluation test and SSC test are conducted to G105 drill pipe at three different temperatures.
5%CH3COOH+饱和H2S水溶液)对G105钢级钻杆在3种不同温度下进行标准氢致开裂(HIC)评价实验和应力腐蚀(SSC)实验。
Study on Influencing Factors of S135 Drill Pipe Steel Oxygen Corrosion and Corrosion Fatigue;
S135钻杆钢氧腐蚀和腐蚀疲劳影响因素的研究
Hydrogen Permeation and Hydrogen Induced Cracking of Drill Pipe Steel S135
石油用S135钻杆钢氢渗透与氢致滞后开裂行为
The bit was attached to a heavy length of steel suspended by a wire rope.
钻头系在由钢丝绳悬挂起来的加重杆上。
On Substitution of the Butt Welding between 35-steel for the Butt Welding of 16Mn and 35-Steel in the Connection of Drilling Pipe and Flange;
35钢代替16Mn用于钻杆管与法兰盘的对焊
Tribological Properties of Sulfur-nitrade Layer on Drilling Joint Material 35CrMo Steel
钻杆接头材料35CrMo钢硫氮共渗层的摩擦学性能
Investigation on Elements Responsible for Development of External Surface Cracks of Drill Pipe Body in Steel X95
X95钢级钻杆管体外表面裂纹形成原因分析
Research on the mathematical mode of flow stress of grade G105 steel for oil drill pipe
石油钻杆用G105级钢高温塑性流变应力数学模型
Research on H_2S Corrosive Operation Condition for Drill Pipe in G105 Steel
G105钢级钻杆在含有H_2S环境下的腐蚀研究
The high seam drill2000 is stainless steel construction and the cylinder rods of the1 st inner legs of the stinger and drill leg are stainless steel.
此厚煤层钻2000为不锈钢结构，且刺和钻支架的一级内支架所属的活塞杆也是不锈钢的。
great lengths of drill pipe which are rotated by an engine at the top,
钻杆顶部安装的发动机带动钻杆旋转，
FABRICATION TECHNOLOGY OF STEEL GIRDER MANUFACTURE OF NANJING DASHENGGUAN YANGZE RIVER BRIDGE:LAY-OUTING AND DRILLING FOR THE WHOLE NODE AND MEMBER OF THE MAIN ARCH
南京大胜关长江大桥钢梁制作技术——主拱整体节点杆件划线与钻孔工艺
hard banding of tool joint
钻杆接头表面加硬圈
Ingersoll-Rand jumbo column
英格索尔－兰德钻车托杆
stacking capacity of derrick
井架的钻杆立根容量
plain clinometer
钻杆下部装的测斜仪
hard facing of tool joint
钻杆接头表面加硬层
engine ,drill, dental, with swivel arm
牙科钻机,带旋转杆
shoulder dressing tool
钻杆接头端面整形工具