The constructing technique of the160? Meter diameter welding ball junction double-deck net shell steel structure roofing of which is in the leading position in China.
160米直径焊接球结点双层网壳钢结构屋面施工技术在国内处于领先地位。
Possessing two methods of arc extinguishing and function of ball cutting after welding, suitable for different high performance welding procedures of semi-automation, automation and robot.
拥有两种收弧模式和焊后削小球功能，适合半自动、自动焊、机器人等不同的高性能焊接工艺需求。
The welding of hollow aluminium ball has more particularities, it adopts the vacuum electronic beam welding that is more favorable than laser welding.
空心铝球的焊接更有特殊性，采用真空电子束焊接比激光焊接更为有利。
The observation results of SEM and MS2000 indicate that cold welding, fragmentation and work harden occurred during high energy ball milling.
SEM和MS2000分析结果表明，高能球磨中存在冷焊、断裂和加工硬化现象。
If the ball within the cylinder sediment, and welding slags sundry total volume in not more than 5 litre, pigging qualified.
若收球筒内泥沙、焊渣等杂物总体积不超过5升，清管合格。
Ball screw system adopted to realize the horizontal movement of machine head; using step belt with steel wire core to realize the vertical movement of the machine head; high welding accuracy.
采用滚珠丝杠传动实现机头水平运动，及钢丝芯同步带传动实现机头垂直运动，焊接尺寸精度高；
Full welding of the ball valve body can be directly buried in the ground, so that in case the valve from erosion, the maximum service life of up to 30 years, oil, natural gas pipeline valve ideal.
全焊接阀体的球阀，可以直埋于地下，使阀门内件不受侵蚀，最高使用寿命可达30年，是石油、天然气管线最理想的阀门。
This text deals with ultrasonic detection of welding seams on ball and tube of space frame.
指出对空间钢网架球管焊缝进行超声波探伤，检测结果表明；
The results show that the system is stable and the data gained by this system are accurate, which can meet the measuring demand of the large diameter full welding of the ball-valve.
结果表明，该系统稳定可靠，所测量出来的数据准确，可以满足大直径全焊接阀体球阀焊接过程的检测要求。
The results show that the original crack is brought by high welding heat, which can cause the broken of ball valve.
结果表明，焊接时输入热量过高产生的原始裂纹是球阀断裂的主要原因。
Welding can be easily shattered the tin-oxide layer, contact stability, which does not damage solder ball;
能轻松刺破焊接锡球的氧化，接触稳定，而又不会损坏锡球。
Ball Valves Threaded, Socket-Welding, Solder Joint, Grooved and Flared Ends.
球阀线程，插焊，焊点，槽和扩口端。
The 3d finite element numerical dynamic simulation of welding between hollow ball and pipe was carried out based on ANSYS.
利用大型有限元分析软件ANSYS，对空心球与钢管焊接件的温度场和应力应变场进行了三维数值动态模拟。
The 3d finite element numerical dynamic simulation of welding between hollow ball and pipe was carried out based on ANSYS.
利用大型有限元分析软件ANSYS，对空心球与钢管焊接件的温度场和应力应变场进行了三维数值动态模拟。
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