HDPE Butt fusion machines
HDPE BUTT FUSION MACHINES
Butt fusion is a thermofusion process which involves the simultaneous heating of the ends of two pipe/fitting components which are to be joined, until a molten state is attained on each contact surface. The two surfaces are then brought together under controlled pressure for a specific cooling time and a homogenous fusion joint is formed. The resultant joint is fully resistant to end loads and has comparable performance under pressure to the pipe itself.
An electrical heater plate is used to raise the temperature of the pipe ends to the required fusion temperature. Butt-fusion can be used to join both PE80 and PE100 materials for the pipe sizes of 90mm and above of the same SDR.
The butt welding machines used to weld PE pipes have controls to ensure the welding parameters are strictly adhered to. The following parameters are controlled:
- heater plate temperature
- ovality and alignment
- interface pressure
- bead width
- heat soak time
- changeover time
Control of these is necessary to ensure premature failure of the weld does not occur. The field conditions under which PE pipe is welded have a considerable effect on the strength of the joint. In order to achieve an acceptable weld three elements are essential:
- Cleanliness: because contamination will ruin joints
- Technique: Most owners of PE pipe systems require that people performing butt welding of PE pipes are qualified by completing a recognized training course.
- Correctly designed equipment with proper maintenance: Correct welding temperatures, welding procedures and pipe facing tools must be maintained in tolerance and in good condition.
The resulting joint, if it has been properly made, is as strong as the original pipe and can withstand all the loads applied during routine installation and operation.
During the fusion process internal and external ‘weld beads’ are formed. Techniques have been developed to minimize the size of the beads, however as they do not add anything to the overall strength they may be safely removed if required. The removed weld beads can be inspected as part of a quality control programme.
在线联系供应商
Other supplier products
 |
Sheet Bending Welding Machine | SKC series Butt Fusion Welding Machine are suitable for welding thermoplastic sheets made of HDPE, PP, PVC, PVDF. The machine is designed according... |
 |
SWT-NS800D Geomembrane plastic welding machine Plastic Membrane Hot Wedge Welder | Leader Saemin International Corp.,LTD is a professional manufacture which mainly produced plastic welder, plastic welding gun, plastic welding mach... |
 |
SWT-NS800 Plastic geomembrane Welding machine Power 800w for PE PVC EPDM welding | Product Description SWT-NS800 The thickness is 0.2-1.5mm and the welding speed is 0.5-5.0m /min Introduction SWT-NS8... |
 |
Hot Wedge Welder | SWT-NS900 Geomembrane Hot Wedge Welder Climbing Welder Brief Introduction Geomembrane Hot Wedge Welding... |
 |
SWT-PH1500 PVC Plastic Sheet Welding Rolling Machine | SWT seriesbutt fusion welding machineare suitable for welding thermoplastic sheets made of HDPE, PP, PVC, PVDF.The machine is designed according to... |
Same products
 |
Portable Handheld Fiber Laser Welder – Water Cooling for Industrial Use | 卖方: Beijing JCZ Technology Co., Ltd | This portable handheld fiber laser welderis designed for industrial-grade welding operations. It ... |
 |
Nozzle adjustment gauge | 卖方: Weldy China Distributor Co.,LTD | Article127.826Item nameNozzle adjustment gaugeBrandWeldyCountry of originP.R. China |
 |
Guide bar | 卖方: Weldy China Distributor Co.,LTD | Article126.096Item nameGuide barBrandWeldyCountry of originP.R. China |
 |
Heating wedge, stainless steel | 卖方: Weldy China Distributor Co.,LTD | Article156.668Item nameHeating wedge, stainless steelVoltage230 VHot wedge materialStainless stee... |
 |
Heating wedge, aluminum | 卖方: Weldy China Distributor Co.,LTD | Article156.563Item nameHeating wedge, aluminumVoltage230 VHot wedge materialHard ematalised alumi... |
