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.
Applicazioni di tubo di acciaio rivestito
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.
Standard:
DIN 30670: rivestimenti di tubi di polietilene adn raccordi in acciaio.
DIN 30678: Polythylene coatiing of steel pipes and fittings.
SY/T0413-2002: Technical standard of polythelene coating for buried steel pipeline.
Tipi di rivestimento anticorrosivo
tipi tubo corrosione sono suddivisi in corrosione esterna e corrosione interna.
1. FBE anticorrosive epoxy powder
FBE struttura polvere epossidica conservante: spruzzatura elettrostatica
verniciatura a polvere epossidica sulla superficie del tubo, una pellicola. il rivestimento
ha un'operazione di rivestimento è semplice, pulito, buona resistenza all'urto
e proprietà di flessione del rivestimento, resistenza alla temperatura
vantaggi.
2. 2PE/3PE corrosion
2PE struttura / 3PE corrosione: l'elettrostatica superficie in acciaio spruzzatura
polvere epossidica e polietilene ferita laterale spago laterali
rivestimento, combinata con tre eccellenti prestazioni, in tal modo significativamente
miglioramento della qualità complessiva della corrosione del tubo. Resistente agli agenti chimici
corrosione, strippaggio catodico, resistenza ai danni prestazioni meccaniche.
3. Coal tar epoxy
Carbone struttura epossicatrame: resina epossidica + riempitivo fatta di carbone pece di catrame
rivestimento anticorrosivo sul tessuto superficie vetro acciaio rivestito come rinforzo
formazione dello strato di corrosione, comunemente usato nella parete del tubo corrosione. spessore di 0,5 ~ 1,0 mm.
3PE acciaio Dimensioni dei tubi
| tipo di rivestimento | layer coating | Spessore del rivestimento |
| Tre strati di polietilene | strato interno: epossidica (verde) | 2.0-4.5mm |
| strato di Mid: adhensive (bianco) | ||
| Outsidelayer: polietilene (nero) | ||
| Due strati di polietilene | Strato interno: adhensive | 2.0-4.5mm |
| strato esterno: polietilene | ||
| Epoxy | Epoxy | 200-400um |
| Due strati epossidica | strato interno: expoxy (verde) | 400-800um |
| strato esterno: epossidico intensità (verde salvia) | ||
| Tre strati di polietilene | strato interno: expoxy (verde) | 2.5-3mm |
DIN30670 per tre strati estrusi e uno o più strati sinterizzati rivestimenti a base di polietilene
DIN30671 rivestimento plastico termoindurente Per interrati tubi in acciaio
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
Uno strato / Double Layer FBE anticorrosivo verniciatura a polvere (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.
