Coated steel pipe means the pipe that is by the processing after the corrosion, which can effectively prevent or slow the steel pipe occurs in the course of transport and chemical or electrochemical reaction corrosion phenomena. Coated steel pipe can effectively prevent or slow down the corrosion of steel pipes to extend service life and reduce operating costs pipe.
Toepassingen van gecoate stalen buis
coated steel pipe base metal is including spiral, straight seam pipe, seamless steel pipe, etc., which are widely used in pipeline projects in the field of petroleum, chemical, natural gas, heating, sewage treatment, water, bridges, steel structures, piling and other marine water.
Standaard:
DIN 30670: Polyethyleen coatings van stalen buizen adn fittingen.
DIN 30678: Polythylene coatiing of steel pipes and fittings.
SY/T0413-2002: Technical standard of polythelene coating for buried steel pipeline.
Soorten anti-corrosie coating
Pipe corrosie types zijn onderverdeeld in externe corrosie en interne corrosie.
1. FBE anticorrosive epoxy powder
FBE epoxypoeder conserveermiddel structuur: elektrostatisch spuiten
epoxypoederdeklaag op het pijpoppervlak, een film. de coating
een bekledingsbewerking is eenvoudig, schoon, goede slagvastheid
en buigeigenschappen van de bekleding, temperatuurbestendigheid
voordelen.
2. 2PE/3PE corrosion
2PE / 3PE corrosie structuur: het staaloppervlak elektrostatisch spuiten
epoxy en bindmiddel garen laterale laterale wond polyethyleen
coating, in combinatie met drie uitstekende prestaties, waardoor aanzienlijk
het verbeteren van de algehele kwaliteit van corrosie van de buis. Bestand tegen chemische
corrosie, kathodische strippen, weerstand tegen mechanische beschadiging prestaties.
3. Coal tar epoxy
Koolteerepoxy structuur: epoxyhars + vulstof uit koolteerpek
corrosiewerende bekleding op het stalen oppervlak gecoat glasweefsel als versterking
corrosielaag vormen, gewoonlijk in de buiswand corrosie. dikte van 0,5 ~ 1,0 mm.
3PE Steel Pipe Maten
| coating Type | coatinglaag | Bekledingsdikte |
| Drie lagen polyethyleen | Binnen laag: epoxy (Groen) | 2.0-4.5mm |
| Mid laag: garenloos (wit) | ||
| Outsidelayer: polyethyleen (zwart) | ||
| Twee lagen polyethyleen | Binnen laag: garenloos | 2.0-4.5mm |
| Buitenlaag: polyethyleen | ||
| epoxy | epoxy | 200-400um |
| Twee lagen epoxy | Binnen laag: epoxy (Groen) | 400-800um |
| Buitenlaag: intensiteit epoxy (sage green) | ||
| Drie lagen polyethyleen | Binnen laag: epoxy (Groen) | 2.5-3mm |
DIN30670 drie lagen geëxtrudeerd en één- of meerlagig gesinterd polyethyleen gebaseerde coatings
DIN30671 thermohardende kunststof coating voor ondergrondse stalen buizen
DIN30678 polypropylene coatings for steel pipes
CAN/CSA Z245.20/-Z245.21-02 external fusion bond epoxy coating for steel pipe/external polyethylene coating for pipe
SY/T4013-2002 for transport water, gas, oil,piling coating
SY/T0315-97 PE coating for buried steel pipe
Een laag / Double Layer FBE antiroestlaag poeder (200um ~ 800um)
3PP (Polypropylene) Coated Steel Pipe
DIN30678 standard technical specification for polypropylene coating for steel pipe and pipe fittings
3PP Coating Advantages:
The 3PP coated steel pipe refers to steel tubing with three layers of PP(Polypropylene) coating. It offers high electric strength, acid resistance, alkali resistance, salt-tolerance, electric insulation, long service life, thermal endurance and impact resistance. Because of advanced steel pipe coating technology, this type of plastic coated steel pipe features well-bonded coatings.
3PP Coating Applications:
The 3PP coating steel pipe is suitable for transferring special materials, such as high temperature materials, because it offers high electric strength, acid resistance, alkali resistance, salt-tolerance, electric insulation, long service life, thermal endurance and is impact resistant.
FBE Coated Steel Pipe
FBE coating pipe is Fusion Bonded Epoxy coating steel pipe. It is an externally applied heat resin for pipe. With a form of dry powder at thickness 300-600 microns on to the heated surface of pipe. Once the FBE coated on the pipe surface, the FBE film provides an extremely hard surface with great adhesion to the pipe surface. The FBE layer in a even form and have good resistance to the chemical reaction.
Polyurethane Insulation Coating Steel Pipe
The polyurethane direct buried heat preservation pipe is a direct buried preheating heat preservation pipe with good heat preservation performance, safety and reliability, and low engineering cost. The buried thermal insulation pipe not only has the advanced technology and practical performance that is difficult to compare with the traditional trench and overhead laying pipeline, but also has obvious social and economic benefits, and is also a powerful measure for heating and energy saving.
It is characterized by a multi-purpose use to prevent the spread of fire and good fire safety performance. Black jacket insulation pipe includes spiral steel pipe, straight seam steel pipe and seamless steel pipe. The outer layer is made of black polyethylene and is called a black jacket insulation tube.
