The manufacture of electric resistance welded pipe

我们接下来检查生产电阻焊接（ERW）管所需的基本步骤。

Coil Feed Ramp

将线圈从储存中取出并放置在进料斜坡上（参见图4.1）。每个线圈被送入未磁性单元。

First Forming Section

The roll transition section receives the product from the first forming section and continues the "rounding-up" process .

Final Forming Pass Section

This section of the forming rolls finishes the rounding process and prepares the edges of the strip for welding .

High-Frequency Welder

自动高频焊机将条带的边缘加热到融合点位置的大约2600f。
Pressure rollers squeeze these heated edges together to form a fusion weld.

In-Process Weld Nondestructive Inspection

Nondestructive Inspection Unit

After welding has been completed, it is inspected by independent nondestructive inspection units.

缝焊归一化

然后将焊接区域经过焊接处理，作为金属物质所需的焊接处理，以除去残留的焊接应力并产生均匀的归一化晶粒结构。

Sizing Mill

管道通过浆磨机以达到铝铝合金的正确外部磨料。

Cutting the Pipe

The pipe is then cut to the correct length.

End Facing And Bevelling

这通常是阶段的，其中管道末端面对并由末端的凹槽粘连。所有这些过程都是连续的自动布置。这些普通的端部管进一步用于根据客户要求进行加工，例如镀锌，螺纹，黑色漆等。