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.
Aplikasi pipa baja lapis
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.
Standar:
DIN 30.670: pelapis Polyethylene pipa baja adn fitting.
DIN 30678: Polythylene coatiing of steel pipes and fittings.
SY/T0413-2002: Technical standard of polythelene coating for buried steel pipeline.
Jenis lapisan anti-korosi
jenis korosi pipa dibagi menjadi korosi eksternal dan korosi internal.
1. FBE anticorrosive epoxy powder
FBE struktur epoxy bubuk pengawet: penyemprotan elektrostatik
epoxy powder coating pada permukaan pipa, sebuah film. lapisan
memiliki operasi lapisan sederhana, bersih, resistensi dampak yang baik
dan sifat lentur lapisan, tahan suhu
keuntungan.
2. 2PE/3PE corrosion
2PE struktur / 3PE korosi: elektrostatik permukaan baja penyemprotan
bubuk epoxy dan pengikat benang lateral yang polyethylene luka lateral yang
coating, dikombinasikan dengan tiga kinerja yang sangat baik, sehingga secara signifikan
meningkatkan kualitas keseluruhan dari korosi pipa. Tahan terhadap kimia
korosi, pengupasan katodik, ketahanan terhadap kinerja kerusakan mekanis.
3. Coal tar epoxy
Batubara struktur tar epoxy: epoxy resin + filler terbuat dari tar lapangan batubara
lapisan anti korosi pada kain kaca permukaan baja dilapisi sebagai penguat
pembentukan lapisan korosi, yang biasa digunakan dalam korosi dinding pipa. ketebalan 0,5 ~ 1.0mm.
3PE Steel Pipe Ukuran
| Coating Type | Coating lapisan | Coating Tebal |
| Tiga lapisan polyethylene | Lapisan dalam: epoxy (Green) | 2.0-4.5mm |
| Lapisan Mid: adhensive (Putih) | ||
| Outsidelayer: polyethylene (Black) | ||
| Dua lapisan polyethylene | Di dalam lapisan: adhensive | 2.0-4.5mm |
| Lapisan luar: plastik | ||
| epoxy | epoxy | 200-400um |
| Dua lapis epoxy | Lapisan dalam: expoxy (Green) | 400-800um |
| Lapisan luar: intensitas epoxy (sage green) | ||
| Tiga lapisan polyethylene | Lapisan dalam: expoxy (Green) | 2.5-3mm |
DIN30670 selama tiga lapis diekstrusi dan satu atau multi-layered disinter pelapis berbasis polietilen
DIN30671 lapisan termoset plastik Untuk pipa baja dimakamkan
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
Satu Lapisan / Double Layer FBE anti-korosif powder coating (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.
