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
 |
Thermofusion Welder | Quick Details Brand Name:MM-TECH Model Number:SWT-V450 Input Voltage: 380v Power: 7500w Dimensions: 200 to 450mm Usage: butt welding of plast... |
 |
SWT-NS610C New Item Cheap Price Hand Plastic Extrusion Welder Extruder Welding Gun for PP HDPE | Company Profile Hebei Mingmai Technology Co.,LTD(MM-Tech) is one of comprehensive manufacturer of hand extrusion welder for pvc sheet pipes with ... |
 |
Weldy Hot Air Gun HG 330-B, 230V/1600W, Universal Kit | Weldy’s HG 330-B is a high-performance heat gun with two, fast temperature switching intervals to select from, between 350 °C / 662 °... |
 |
pipe welding machine | Detailed Product DescriptionPPR pipe welder1.The bonding tool at random:20-63mm2.all the moulds are covered with Coating Teflon3. CE &ROHS CERT... |
 |
children bicycle kids bike russia bikes | russia bikes,12"16"inch,coaster brake,1.2mm thickness of frame,good tire with white line,butyl tube,CP carrier and handlebar ,stem,mudguard,best qu... |
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... |
