Home > categories > Rubber & Plastics > Composite Pipes > Construction technology of internal and external double hot melt joint of PSP steel plastic composite pipe
Question:

Construction technology of internal and external double hot melt joint of PSP steel plastic composite pipe

Construction technology of internal and external double hot melt joint of PSP steel plastic composite pipe

Answer:

If the welding temperature is up to 210 + 10, the double fusion welding tool can be used for welding operation. Dn32 and Dn32 the following specifications pipe and pipe welding, the whole round after the first pipe weld to 30% - 50% mark depth, and then fitting into hot melt appropriative welding die heating, and achieve the identified depth; pipe and pipe fittings fused Dn40 and Dn40 above ground when should the pipe and insert special hot melt transition joint welding die heating, and achieve the identified depth.
The process parameters of double hot melt connection are strictly referenced to table 1. When a molten material overflow from the die head part (or outer weld depth marking) overflow, which reached the heating time and effect, immediately put the pipes and fittings from the die off quickly, without rotating along the axial direction of the socket to the identified depth (conversion time shall not exceed 1 of the maximum conversion table the time required), maintain a certain pressure, and the connection part fixed compression cooling, hot melt welding forming uniform, welding socket is strictly prohibited during the rotation.
Mark the outer weld depth with the marking plate and marker pen at the end of the pipe according to the requirement of the technological parameter table.
The whole circle of treatment on Dn32 and below Dn32 specifications of the pipe end to be connected to the pipe end; Dn40 and Dn40 and above if not round, it should be cut off at the end of.
Use special breaker to cut tubing (cut end must be perpendicular to the pipe axis), while deburring.

Share to: