LW2000×20 直缝焊管生产线 

 DIRECT FORMING PROFILE PRODUCTION LINE 

 

 1、 概述 General introduction LW2000×20 直缝冷弯焊管生产线主要用于生产 250×250～500×500mm,壁厚 8.0～ 20.0mm 的方管及相应矩形管。整套机组在生产开口冷弯型钢和方矩形管时采用目前国 际最先进水平的多点予弯组合式。这种成形方式的变形过程使受力更加合理，机组各机 架的材料变形由原始的线接触转化为点接触。 This line is mailnly designed to produce square pipe from 250×250～500×500mm with the thickness of 8.0-20.0mm and responding rectangular pipe from 150*250 to 300*500mm; the advanced multi-point bending, also called direct forming technique, which has more reasonable bending force of the strip in the forming procedure, and the transformation at each roll stand change from line contact to point contact; 经过消化吸收国外先进技术，提升国内设备设计和制造水平，形成了我们独特的设备设 计和制造理念，更好的服务国内外新老客户。在成型技术和设备自动化控制方面，我们 采用更适合于客户的先进孔型设计，机组制造精度保证体系，PLC 全线自动控制系统， 以及全数字调速单元系统，以此来保证设备的先进技术，工作稳定以及方便使用维修， 给客户带来更多的经济效益。 In another aspect, our unique theory of equipment designing and manufacturing is established by digesting and absorbing advanced technique abroad and inhancing domestic designing and manufacturing level to better serve clients home and abroad. In the forming technique and automatic control system, we will take the advanced rolling design what is more suitable to client, the machine precision gurantee system, speed numberal control system, to give this line an advanced technique, stable working and easy maintaining and more economical benefits！ 

 

2、生产线主要技术参数 Main technical parameters 2.1 原材料 Raw material 2.1.1 材料 Material：低碳钢及低合金钢 Low carbon steel and low alloy steel (σb≤580MPa σs≤345MPa) 2.1.2 带钢宽度 Strip width：1000～2000mm 2.1.3 带钢厚度 Strip thickness：8.0～20.0mm 

 

2.2 主要产品规格 Finished product specification 2.2.1 方矩管尺寸 Square & rec. pipe 250×250~500×500mm 200×300～400×600mm， 2.2.2 壁厚 Pipe Thickness：8.0～20.0mm 2.2.3 长度 Pipe length：6-12m 

 

2.3 机组进料方向 Line direction：待定 To be confirmed 

 

2.4 生产速度 Production speed：10～24m/min（管径壁厚速度不能同时达到最大 The pipe size，thickness and speed cannot reach the biggest at the same time;） 

 

2.5 总功率 Line Power Consumption：About 3500KW 

  

 3、生产线工艺流程 Technical procedure 上料→开卷(直头)→夹送矫平→剪切,对焊→裁边→直接成型→导向→高频焊接挤压→去 外毛刺→冷却→定径→矫直→定尺飞锯(切断) →输送辊道→落料、打包→成品入库 

 

Coil loading & Uncoiler （End straightening）→Feeding & leveling→ Shear & welder → Edge trimming →Direct Forming section→ HF squeezing welding→ Outer De-burring→ Cooling→ Sizing section→ Rough Straightening→ Computer cut off saw→Run-out table→ Bench & Packing 

 

4、供货范围及要求 Product Range and Instructions 4.1 供货范围总则 General Rules 本供货范围总则以下列说明为依据。The product range is on the basis of the instructions as follows; 卖方负责提供组成本生产线所有单体设备、零部件和材料（买方自购者除外）。The seller is responsible for providing all single machine, parts and material (Except the ones purchased by the buyer) 位于 T.O.P 交接点处的能源介质截止阀包括在本工程的机内配管范围。The energy connections at T.O.P. are in the machine supply range of the project; 气动控制元件包括带有各种接头的截止阀、电磁阀、消音器、过滤器、减压阀、压力 计、油雾器（给油器）和速度调节阀等。如果在卖方设计范围内安装的，由卖方供货。 Pneumatic control components includes: connection stop valves, magnetic valves, silencer, filter, reducing valves, manometer, oil sprayer, speed governing valve and so on. The seller is responsible for the ones in the design installation range. 

 

4.2供货范围表 Product Supply Form 

 

 

 

4.3交接点（T.O.P）的定义应按以下规定 The explanations of T.O.P.： 设备交接点原则上在供货设备 1 米外，1 米以内所有电气、气动、液压及冷却水系统的 所有管线在供货范围内，供货范围不包括以下项目：The T.O.P. is at the one meter from the machine, and all the piping lines of the electronic, pneumatic, hydraulic and cooling water are in the supply range, but exclude: 4.3.1 安装设备所用的预埋件、安装垫铁、穿线管。The buried parts, iron gaskets and threading tubes for installing; 4.3.2 车间供配电系统及配电柜。Workshop power supply system and electricity cabinets; 4.3.3 车间供配电柜到受电柜、电气控制柜到操作台、操作台到端子箱之间电缆；电气 控制柜至电动机动力电缆。（数据通讯线除外）The electric cable between workshop electricity cabinet and receiving cabinet, electric or pneumatic cabinet and control table, control table and terminal box, electric or pneumatic cabinet and drive motor (Except data link) 4.3.4 浊环水、净环水、气等能源介质的供给。Energy supply of turbid or net ring water and compressed air; 4.3.5 各单机设备所用液压油、润滑油。Hydraulic oil and lubrication oil for all the single machine; 4.3.6 液压站阀台到设备油路分配块之间的连接管路。卖方提供二次配管图。Linking tubing between hydraulic station valve stand and oil distribution block of every single machine (Second tube graphs will be supplied by the seller)