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 bersalut paip keluli
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: lapisan polietilena paip keluli adn kelengkapan.
DIN 30678: Polythylene coatiing of steel pipes and fittings.
SY/T0413-2002: Technical standard of polythelene coating for buried steel pipeline.
Jenis salutan anti-karat
jenis kakisan paip dibahagikan kepada kakisan luaran dan kakisan dalaman.
1. FBE anticorrosive epoxy powder
FBE epoksi serbuk pengawet struktur: menyembur elektrostatik
epoksi salutan serbuk pada permukaan paip, filem. lapisan
mempunyai operasi salutan adalah mudah, bersih, rintangan hentaman yang baik
dan sifat-sifat lenturan lapisan, rintangan suhu
kelebihan.
2. 2PE/3PE corrosion
2PE struktur / 3PE karat: elektrostatik permukaan keluli semburan
serbuk epoksi dan pengikat membelit sisi sisi luka polietilena
lapisan, digabungkan dengan tiga prestasi yang sangat baik, dengan itu dengan ketara
meningkatkan kualiti keseluruhan kakisan paip. Tahan kepada bahan kimia
kakisan, pelucutan katod, rintangan kepada prestasi kerosakan mekanikal.
3. Coal tar epoxy
Arang batu tar epoksi struktur: epoxy resin + pengisi diperbuat daripada arang batu tar padang
salutan anticorrosive pada kain kaca permukaan keluli bersalut sebagai tetulang
pembentukan lapisan kakisan, biasanya digunakan dalam kakisan paip dinding. ketebalan 0.5 ~ 1.0 mm.
3PE Steel Pipe saiz
| Jenis Coating | lapisan salutan | Coating Ketebalan |
| Tiga lapisan polietilena | Di dalam lapisan: epoksi (hijau) | 2.0-4.5mm |
| lapisan pertengahan: adhensive (White) | ||
| Outsidelayer: polietilena (hitam) | ||
| Dua lapisan polietilena | Di dalam lapisan: adhensive | 2.0-4.5mm |
| lapisan luar: politena | ||
| epoksi | epoksi | 200-400um |
| Dua lapisan epoksi | Di dalam lapisan: expoxy (hijau) | 400-800um |
| lapisan luar: intensiti epoksi (bijaksana hijau) | ||
| Tiga lapisan polietilena | Di dalam lapisan: expoxy (hijau) | 2.5-3mm |
DIN30670 untuk tiga lapisan extruded dan satu atau berlapis-lapis tersinter salutan berasaskan polietilena
DIN30671 salutan termoset plastik Untuk dikebumikan paip keluli
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 Layer / Double Layer FBE anti menghakis serbuk salutan (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.
