Butt-welding PEX-AL-PEX pipe line

*Advantages  
Began from 1994,we studied and researched by ourselves the production technology of butt-welding PEX-AL-PEX composite pipes, and in 1998 we successfully made a top-quality, fully computer-controlling Tig butt-welding PEX-AL-PEX composite pipe production line. it’s a combination of welding and mechanics techniques, a combination of many theories and practices.

It can weld Alu-sheet of thickness from 0.2-2mm,has a high production speed:15M/min, easy to control and handle.  

1. Working flow
   extrusion of inside PEèformingècoolingèdryingècalibratingèinside adhesive extrusionècoolingèdryingècalibratingèhaul-offèAlum-sheet Tig. butt welding
   èeddy current check on weldingèhi-frequency induction heatingèoutside adhesive extrusionèoutside PE extrusionècoolingècalibratingèhaul-offèsynchronous cutting
   èauto reloadingèrolling.

2. Advantages  

   • advanced technology  
     Hi - precision inverse transformation welding power sources are applied, electrical current and   data are indicated digitally, IC tension control, on-line eddy current check on defect welding, I-frequency heating and fully computer control, all these make it advanced in technology at home;  

   • professional computer-controlling is its hi-class mark  
     It’s a combination of lots of lab tests and actual practicing experiences. PII industrial computer (Windows NT) monitoring and program control, free of interference manual and auto-conversions , it's really completely synchronous, to make a easier, more practiced and durable operation. multi-missions vague controlling technology and web/LAN technology are applied, making a easy, reliable and friendly control for the whole line .  

   • fine workmanship, I-quality  
     All key parts and components are made of the best materials at home, those purchased ones are hi-quality imported electronic devices (frequency conversionary, coder etc). précised CAM technology, advanced processing and measuring ways are applied in manufacturing, making dies and tool carriers get very high precissions.ISO9000 system is applied, after assembled, the whole machines perform very well, durable to run,1^st successful running rate is up to 98%.
     Our precision CAM technology make sure that we can have a continuous précised alum-tube forming, as it can avoid alum sheets’ going off course and going winkling, thus a very round and good alum tube can be made stably.  
     Typical and patented Integrated alum-tube tightening technology (national patent) can make a durable adhesion on Polymer and alu sheet.  
     Solid hi-frequency heating is of hi-efficient, water and energy saving, polutionless, there’s no any thermal interiority's easy to control heating temperature, which can be adjusted and controlled by computer precisely and continuously. it's the best heating way for pex-al-pex pipe making, especially for adhesive bonding to polymers and alum-sheet.  
     In order to get a solid welding on the very thin alu sheet, hi-precision inverse transformation welding power sources are applied, which is of light in weight, high  efficient, stable welding current, good welding seam forming.

   • hi-quality welding
     smooth welding seals, welding parts are stronger than their mother materials. this technology has been used to prove to be the best and potential welding way, making the best welding quality, by Germany, Sweden and other developed countries.  

   • wide range of welding
     we studied and made a hi-quality welder for PEX-AL-PEX pipe specially, its major electronic devices are all of foreign famous brand names. welding thickness:0.25-1.5mm,up to 3mm is also not difficult, can weld all big size pipes, and have great advantages against ultrasonic welding when welding big size pipes.  

   •  hi-roundness pipes with even walls made by this machine
     butt welded Alum-tube after being drawn has a roundness below 0.15,much better than overlap welding tube, thus the whole composite pipe is very round, with even wall thickness and strength, without any weak parts.  

   • hi-productivity      15M/min

   • easy to handle
     practiced single layer plastic pipe extruding way is applied to composite pipe’s inner PE pipe making, and inner adhesive extruding, easy to operate, monitor and adjust.

3. PII Computer control systems (Windows NT) and touch control panel are applied, which have the following advantages:

   • it’s composed of 1 main control and 4 sub-controls, reasonable layout;

   • all controlling subjects on the line have special controllers, located at site on line, very easy to handle;

   • site-bus and distribution cablings of international standard Web technology are applied, making a reliable performance and anti-interference properties, especially anti hi-frequency interference.

4. data from main controller can be reliably distributed to all site sub-controllers, at the same time, all working data from sub-controllers can be sent to main controller;

5. computer system can then automatically learn all data, and find the best running curve for the whole line;

6. computer controlling or site manual controlling can be easily converted, very convenient for installing and adjusting;

7. its smart controlling structures giving a easy controlling reconstructing and extending;

8. when a controller failed to work, there's no any interference to others, the main controller and other sub-controllers can work normally.
    

9. In order to get easy, reliable and practiced handle on the complicated whole line, we use the following technologies:

   • many kind of advanced controlling technologies;

   • IC PID close-circuit technology on temperature control;

   • close-circuit technology on extruding speed;

   • accompanying technology of welding machine’s current and speed;

   • technology of 3 haul-offs working synchronously;

   • auto speed converting control technology, no waste giving out when speed converting;

   • power of hi-frequency hearer auto converting to running speed of the line.

10. Pipes can be made its inner layer PEX pipe, welding and outside Pex pipe can completely independently work, thus it can make, besides composite pipes, PEX  pipe, PPR pipe and PB pipes…

11. hi-quality, low price its price is only 1/10 of European machines with the same parts and components.

12. good after-sale service we have welding, controlling, mechanics, plastics and other professional engineers, can supply with you complete and in-time service.  

main parts and components and their technical data

1.      we have 3 models:

a.ADF-32   can make pipes of 14-32mm;

b.ADF-63   can make pipes below 63mm;

c.ADF-110  can make pipes of 75-110mm

2.main technical data   2.       parts and components (standard)