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What is the cause of the surface of the electrofusion tube that is not smooth?

Ningbo Lianda Plastic Pipe Co.,Ltd | Updated: Jan 21, 2019

Due to the influence of the environment, some defects such as coarse or grooved surfaces may be formed on the surface of the electrofusion tube.

If the critical surface of the fused fuse is rough, it may be because the head temperature is too high or too low, resulting in a rough surface. The low temperature of the mandrel and the low temperature of the fuselage will cause the inner surface to be rough. The cooling water temperature is too high and the surface is rough. Reduce the cooling water temperature, PP-R cooling water temperature is 20 to 30 degrees Celsius.

Manufacturers of electrofusion fittings should check the waterway for blockages and water pressure, check the heating ring for damage, check the performance of the raw materials, consult the raw material supplier, and if the mold temperature is high, clean the core temperature of the mold. The temperature of the mold part, if there are impurities, turn on the temperature adjustment and installation, check and clean the mold.

When there are grooves on the surface of the electrofusion tube, the water curtain of the water curtain with the diameter should be inspected and adjusted, the pressure should be balanced, the angle of the nozzle should be adjusted, the pipeline should be cooled evenly, and any debris and burrs should be checked.