Large diameter socket type plastic coated steel pipe

Socket-type plastic-coated steel pipes are a new generation of anti-corrosion pipe products that use new anti-corrosion materials, advanced equipment, and hot-dip plastic processes to achieve internal and external anti-corrosion of steel pipes. It is an upgraded product of traditional anti-corrosion pipes and is especially suitable for anti-corrosion and pressure resistance. , the use of protective tubes for crossing and bridge cables with special requirements such as exposure. This product is a breakthrough in new products, new technologies, and new processes. It has significantly improved anti-corrosion capabilities than traditional anti-corrosion pipelines, and its aging resistance, corrosion resistance, mechanical strength, toughness, and processing performance have all been improved.

Socket-type plastic-coated steel pipe has strong aging resistance and corrosion resistance, high mechanical strength, strong pressure-bearing capacity, excellent weather resistance and insulation, smooth internal and external surfaces, small friction coefficient, and low water absorption (less than 0.003 %), adaptable to a wide temperature range (-40℃-80℃) and other advantages. It combines the advantages of pipelines and nano anti-corrosion pipelines and is widely used in the construction of pipeline systems in power, communications, transportation, municipal administration, mining, petroleum, chemical industry, and other areas across the country.

The following construction machines should be used for plastic-coated steel pipes:
(1) Cutting should be done with a metal saw;
(2) A special rolling groove machine should be used for grooving;
(3) The bent pipe should be cold-bent using a pipe bending machine;
(4) Threading should be performed by pipe thread processing;
(5) Files should be used to deburr the ends of plastic-coated steel pipes and process round corners;
(6) Coating strength Inorganic solvent liquid epoxy resin coating should be applied with a small brush or toothbrush.

Plastic-coated steel pipes are products that use PE (modified) for hot-dip plasticizing or internal and external coating and have excellent corrosion resistance. At the same time, the coating itself also has good electrical insulation and will not cause electrical corrosion.

It has low water absorption, high mechanical strength, and a small friction coefficient, which can achieve the purpose of long-term use. It can also effectively prevent damage to plant roots and soil environmental stress.

The production process of plastic-coated straight seam steel pipes is simple, low in production cost, and rapid development. The strength of straight seam welded pipe specifications is generally higher than that of straight seam welded pipes. The straight seam welded pipe specifications can use narrower billets to produce welded pipes with larger diameters. The straight seam welded pipe specifications can also use billets of the same width to produce welded pipes with different diameters. However, compared with spiral steel pipes of the same length, the weld length of spiral welded pipe specifications is increased by 30 to 100, and the production speed of spiral welded pipe specifications is lower. Therefore, smaller-diameter welded pipes mostly adopt straight seam welding, while large-diameter welded pipes mostly adopt straight seam welding specifications.