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
 |
Extrusion Welder | SWT-NS610A Hand Welding Extruder Plastic Extruder Handheld plastic extruder Waterproof Roll Hand Held Extruder PP PE... |
 |
SWT-NS600F 110V 220V Powerful Motor Automation Plastic Hand Extruder with 3400W Heat Gun | Company Profile Hebei Mingmai Technology Co.,LTD(MM-Tech) is one of comprehensive manufacturer of hand extrusion welder for pvc sheet pipes with ... |
 |
SWT-V200 CNC Automatic Butt Fusion Welding Machine | Automatic butt fusion machine CNC seriesFeature:1.Preloaded major welding standard (DVS,TSG,D2002-2006 and others),fully record the welding paramet... |
 |
Weldy Hot Air Gun energy HT1600, 230V/1600W | The energy HT1600 heat gun from Weldy is very powerful. It is equipped with a stepless temperature control up to 700 °C / 1292 °F and a rob... |
 |
Weldy roof welder miniwelder roof2, 230V/800W, w/o test channel, EU plug | Lightweight roof welding machineThe 4 kg Weldy miniwelder roof2 is extremely light and easy to operate. It can be used on all pitched roofs and is ... |
Same products
 |
Corona Plasma Treatment Machine | 卖方: Shenzhen Naen Technology Co,. Ltd | Corona surface treatment and Plasma surface treatment equipmentis used to “prime” a s... |
 |
Plasma Etching Cleaner | 卖方: Shenzhen Naen Technology Co,. Ltd | The plasma etch process is the removal of certain material from another substrate surface to leav... |
 |
Rotary Jet Plasma Treater | 卖方: Shenzhen Naen Technology Co,. Ltd | Rotary Jet Plasma Treaterconsists of a control host and a direct-injection spray gun: the host is... |
 |
Micro Plasma Cleaning Machine | 卖方: Shenzhen Naen Technology Co,. Ltd | NE-PE13F is a micro plasma cleaning machine. It is microprocessor controlled benchtop plasma trea... |
 |
Benchtop Plasma Cleaner | 卖方: Shenzhen Naen Technology Co,. Ltd | NE-PE05Benchtop Plasma Cleaneris an entry-level desktop plasma equipment. It is a small one - mob... |
