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1. Corrosion resistance: PE is an inert material
and it is resistant to many chemicals except
very few strong oxidizers, which can guarantee
the sanitary of the whole water supply pipe
system.
2. Such full automatic computer control
system as the ultrasound scanning device,
the meter weight measurement control system,
the inspecting controller of wall thickness
have been set on the production line to guarantee
the quality of each meter of the pipe.
3. Advanced production techniques and technologies
have been adopted. The specific cooling technology
is adopted to control the crystallization
velocity, homogenize the crystallization of
materials and guarantee the long-term stability.
Picture of homogenized crystalline grain
under microscope |
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Butt welding by hot melting is to use a special butt welding machine to plane the two faces of the pipes to be connected or the pipe and the fitting to be connected, to connect them rapidly after heating and melting with a certain pressure (0.05MPa) and to realize the melting and connecting after the cooling. The requirements of the pre-heating time, pre-heating pressure, heating time, heating pressure, cooling time, and cooling pressure are strictly determined in the following table:
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