缝焊

The flying sawing machine is one of the key units of the straight welded pipe production line.

飞锯是直缝焊管生产线上的关键设备之一。

It's one of the main machines in the modern pipe mill line and formed section line.

它是现代高频直缝焊管生产线和冷弯型钢生产线的主要设备之一。

The development of the concentrated resistance welding control system is besed on the analysis of operation requirements in the industry.

摘 要 通过对生产实际情况进行分析，说明了集约式电阻点缝焊控制系统研制的必要性。

For enhancement of length-cutting accuracy and consistent operation of the on-line flying sawer, a new PLC-DDC-D control system of flying sawer for the straight-welded pipe production line has been developed on the basis of studies of relevant flying sawer control systems developed both at home and abroad.

为了提高飞锯在线动态定尺锯切精度、保持良好的工作稳定性，在研究了国内外飞锯控制系统的基础上提出了新型的 PLC-DDC-D直缝焊管飞锯控制系统的设计。

The milling and chamfering machine is a key unit in the longitudinally welded pipe production line.

铣头倒棱机是高频直缝焊管生产线上的关键设备之一。

The content of this thesis is followings: Chapter 1 aims to summerize the key problem in the research on pass design of cage-roll forming on the basis of status review of research on ERW cage-roll forming, and to introduce main content, configuration and the motivation of this thesis.

本文的主要研究内容如下：第一章：在综述ERW直缝焊管排辊成型研究现状的基础上，总结了排辊成型孔型研究的关键问题，阐述本文选题依据，并介绍了本文的主要内容、结构安排和创新之处。

A new fashioned special seam welder for welding the stainless steel band on the rail surface was developed successfully.

研制了一种新型的钢轨表面不锈钢带专用缝焊机。

Welded pipe unit: The stainless steel welded pipe unit, the cold bending formation series welded pipe unit, the high frequency welded pipe unit, the pot galvanize unit, cut the butt welding machine, the spiral welded pipe unit and the heavy-caliber straight seam bury the arc-welded pipe unit and so on the complete set of equipment and so on;..

焊管机组：不锈钢焊管机组、冷弯成型系列焊管机组、高频焊管机组、热镀锌机组、剪切对焊机、螺旋焊管机组及大口径直缝埋弧焊管机组等成套设备等；。。

It adopt the advanced power-saving and manufacturing technology, to manufacture the machines with full automatic film threading machine, wave soldering machines and so on.

公司引拥有全自动插片机，波缝焊机及全自动数控车床设备，流水线作业，引进国际最先进的节能技术，采用国际领先的生产工艺，专业生产、研发焊接与切割设备。

Now stamping, cold crowded, seam welding equipment and production lines.

现在冲压、冷挤、缝焊机等设备及生产流水线。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。