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.
Aplikasyon ng mga pinahiran bakal pipe
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 30,670: Polyethylene Pintura ng bakal pipe adn fitting.
DIN 30678: Polythylene coatiing of steel pipes and fittings.
SY/T0413-2002: Technical standard of polythelene coating for buried steel pipeline.
Mga uri ng mga anti-kaagnasan patong
uri pipe kaagnasan ay nahahati sa panlabas na kaagnasan at panloob na kaagnasan.
1. FBE anticorrosive epoxy powder
FBE epoxy pulbos pang-imbak istraktura: electrostatic pag-spray
epoxy pulbos patong sa ibabaw ng pipe, isang film. ang patong
ay may coating na operasyon ay simple, malinis, magandang epekto paglaban
at flexural properties ng patong, temperatura pagtutol
kalamangan.
2. 2PE/3PE corrosion
2PE / 3PE kaagnasan istraktura: ang bakal ibabaw electrostatic pag-spray
epoxy powder at tagapagbalat ng aklat magpilipit lateral lateral sugat polyethylene
coating, na sinamahan ng tatlong mahusay na pagganap, at dahil doon makabuluhang
pagpapabuti ng pangkalahatang kalidad ng mga kaagnasan ng pipe. Lumalaban sa kemikal
kaagnasan, cathodic pagtatalop, paglaban sa mekanikal pagganap pinsala.
3. Coal tar epoxy
Alkitran epoxy istraktura: epoxy dagta + tagapuno ginawa ng alkitran pitch
anticorrosive patong sa bakal ibabaw pinahiran glass tela bilang pampalakas
corrosion layer pormasyon, karaniwang ginagamit sa kaagnasan pipe pader. kapal ng 0.5 ~ 1.0mm.
3PE Steel Pipe Sukat
| Uri coating | coating Layer | coating Kapal |
| Tatlong layer polyethylene | Inside layer: epoxy (Green) | 2.0-4.5mm |
| Kalagitnaan ng layer: adhensive (Puti) | ||
| Outsidelayer: polyethylene (Black) | ||
| Dalawang layer polyethylene | Inside layer: adhensive | 2.0-4.5mm |
| Sa labas layer: polythene | ||
| epoxy | epoxy | 200-400um |
| Dalawang layer epoxy | Inside layer: expoxy (Green) | 400-800um |
| Sa labas layer: intensity epoxy (sage berde) | ||
| Tatlong layer polyethylene | Inside layer: expoxy (Green) | 2.5-3mm |
DIN30670 para sa tatlong-layer extruded at isa-o multi-layered sintered polyethylene-based Pintura
DIN30671 thermoset plastic coating Para buried steel pipe
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
Isa Layer / Double Layer FBE anti-kinakaing unti-unti coating powder (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.
