钢管设备工艺中英文对照

直缝钢管生产装备与工艺介绍

中英文对照

1.直缝管生产主要装备技术简介

ERW生产线全线采用PLC自动控制。

开卷机：双锥自动开卷，采用光电对中控制系统，可开卷重20吨；

接板机：自动剪切对焊，前后钢卷头尾对接埋弧自动焊；

储料坑：采用光电检测系统；

成型机：采用目前比较先进的排辊成型方式，接近自然成型，这种成型原理是：当带钢初成型后进入排辊成型，通过大量小直径被动排辊使钢带逐渐形成圆形，这种“自然成型方法”有以下优点：

⑴实际成型过程中，带钢边部纵向平整、无波浪、无皱折；

⑵在圆周上得到精确的几何形状；

⑶三架精成型采用四辊万能机架，便于调整，可得到理想的几何形状；

高频发生器：600KW高频发生器由一个PLC控制，具有焊接温度显示自动控制系统，防止火花短路系统，报警系统，即适用于感应焊，也适用于接触焊。震荡电路有自己的柜体，该柜体积小，便于靠近焊管生产线，使高频发生器输出和感应圈之间的功率损失最小，整机输出功率高；

挤压焊接装置：由四辊挤压和焊接顶辊完成，可方便调整挤压力和V型开口角，既能保证适当的挤压力，又能得到一个稳定的烧化和熔解的过程；

内毛刺去除装置:由液压控制，稳定可靠，内毛刺剩余高度控制在合同规定的范围；

热处理装置：焊缝中频常化热处理机三台（1500KW、美国），加热宽度30mm，加热效率高，保证加热深度渗透

全壁厚；同时具有消除焊接残余应力作用；

定径矫直机：采用四辊万能机架，经减径整圆，达到理想的外径公差、圆度及直度，兼有降低焊缝残余应力作用；

飞切定尺机：采用微机控制的液压加力旋切式（四把园盘切刀）切断方式，无噪音、无铁屑消耗，对焊缝无损伤，定尺精度±3mm；

平头倒坡口机：采用先进的液压仿型装置，微机自动控制升降台架、传输、平头、倒坡口。管端可加工为用户要求的形状，便于用户管端对口接焊。

2.直缝管生产工艺

2.1工艺简述

准备段：主要包括备卷、开卷、直头整平、剪切对焊、递料、储料、拉出整平、对中、板材电磁超声波探伤等工序。

制管段：予成型、排辊成型、精成型、五辊挤压高频焊接、去除内外毛刺、在线超声波探伤、焊缝热处理、定径、矫直飞切定尺。

精整段：平头倒坡口、水压试验、手动超声波复检、最终检验、标识、包装。

2.2 工艺流程图

Steel Pipe Manufacturing Equipments

and Technology Process

1. Line Pipe Main Manufacturing Equipment Technology

(ERW) production line adopt PLC automatic control completely.

Uncoiler:Double-cone uncoiler, adopting light

and

electricity center control system, can uncoil 20MT weight.

Coil butting-welding machine: welding of coil in automatic shears, the former end and the later head is butting- welding by submerged arc welding.

Store material spot:adopting light and electrical inspection system.

Forming machine: adopting the relatively advanced standing forming way of roller at present. It’s close to natural forming. This kind of forming principle is: After skelp pre-formed and enter standing-roller form, arrange roller make skelp form in the round gradually passively through little diameters. There are following merits in this kind of “natural forming method”

⑴In actual forming process ,the transverse edges of coil are smooth without wave ,wrinkly .

⑵In circumference to get the accurate geometry.

⑶There fine-forming adopt four rollers of omnipotence stand. easy to adjust, can get the ideal geometry form .

600KW high frequency generator is controlled by one PLC .There is temperature of welding that shows the automatic control system .It prevents flash short circuit system ,warning system suitable for reaction weld and keeping in touch welding too .Oscillating circuit have own cupboard body with little volume .It’s easy close to welding production line .Making the high frequency generator export the power while enclosing with reaction to lose the minimum .The out put power of the complete machine is high .

Extruded welding equipments:

It’s finished by four rollers and extruded welding, very convenient to adjust extrusion strength and V type opening’s corner ,can guarantee proper extrusion strength ,also get the course of a steady burning and fusion .

The removal equipments of internal flash:

The equipment is controlled by the hydraulic pressure , It’s reliable to be steady .Interior burr reinforcement shall be controlled within the range stipulated in the contract .