GDCE
MIRROR WELDING
Mirror welding on high-density polyethylene (HDPE) tubes is a technique used to create strong and watertight joints between two HDPE tubes.
MIRROR WELDING: Presentation
Mirror welding on high-density polyethylene (HDPE) tubes is a technique used to create strong and watertight joints between two HDPE tubes.
HDPE is a widely used plastic material in piping systems due to its excellent mechanical and chemical properties, as well as its corrosion resistance.
Mirror welding is also known as butt welding, as it involves melting the ends of the tubes to join them seamlessly and create a continuous connection.
Here are the main steps of mirror welding on HDPE tubes:
PHASE 1: FIXATION OF THE TUBES
PHASE 2: PLANING OF THE TUBES
Both ends of the HDPE tubes to be welded must be carefully prepared to ensure proper fusion. This involves planing the ends perpendicular to the axis of the tube and removing any dirt, dust, grease, or moisture that could affect the quality of the weld.
PHASE 3: HEATING OF THE ENDS
Heating of the Ends: The tube ends are heated using special mirror heating plates that provide uniform and controlled heat. The heating temperature is crucial to achieve proper fusion without overheating or underheating the material.
Pressure and Fusion: Once the tube ends are sufficiently heated, they are pressed against each other to induce material fusion. The applied pressure during cooling ensures a strong and watertight weld.
Cooling: After fusion is achieved, the tubes are held in position for a certain period to allow the material to cool and solidify.
PHASE 4: PRESSURE, FUSION
Pressure, Fusion, Cooling:
Once the tube ends are sufficiently heated, they are pressed against each other to induce material fusion. The applied pressure during cooling ensures a strong and watertight weld.
After fusion is achieved, the tubes are held in position for a certain period to allow the material to cool and solidify.
PHASE 5: COOLING
Cooling:
After fusion is achieved, the tubes are held in position for a certain period to allow the weld to cool and solidify.
AVANTAGES :
Mirror welding offers several advantages, including high mechanical strength of the joint, resistance to chemicals, perfect sealing, and long-term durability. It is commonly used in potable water distribution systems, agricultural irrigation, natural gas, and other applications requiring reliable and efficient HDPE pipes.
It is important to note that mirror welding of HDPE tubes should be carried out by qualified professionals, as improper execution can lead to welding defects, leaks, and a significant reduction in joint strength.