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.
코팅 강철 파이프의 응용
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.
표준:
DIN 30670 : 철강 파이프 ADN 피팅의 폴리에틸렌 코팅.
DIN 30678: Polythylene coatiing of steel pipes and fittings.
SY/T0413-2002: Technical standard of polythelene coating for buried steel pipeline.
부식 방지 코팅의 종류
파이프 부식 유형은 외부 및 내부 부식 부식으로 분할된다.
1. FBE anticorrosive epoxy powder
FBE 에폭시 분말 방부제 구조 : 정전 분무
파이프 표면 필름에 에폭시 분체 도료. 코팅
코팅 작업이 깨끗하고 간단 가지고, 좋은 충격 저항
및 코팅의 굴곡 특성, 내열성
장점.
2. 2PE/3PE corrosion
2PE / 3PE 부식 구조 : 강판 표면의 정전 분무
에폭시 분말 및 바인더 횡 감기 횡 권취 폴리에틸렌
대폭 세 우수한 성능과 결합 코팅
배관의 부식의 전반적인 품질을 향상시킬 수있다. 화학 물질에 대한 내성
부식, 음극 박리, 기계적 손상 성능 저항.
3. Coal tar epoxy
콜타르 에폭시 구조 : 에폭시 수지 + 필러 콜타르 피치 이루어지는
보강 강판 표면 코팅 된 유리 섬유의 방식 도료
일반적으로 파이프 벽의 부식에 사용되는 부식 층 형성. 0.5 ~ 1.0mm 인 두께.
3PE 강관 크기
| 코팅 유형 | 코팅층 | 코팅 두께 |
| 삼층 폴리에틸렌 | 내부 레이어 : 에폭시 (녹색) | 2.0-4.5mm |
| 중간 계층 : adhensive (화이트) | ||
| Outsidelayer : 폴리에틸렌 (블랙) | ||
| 두 층 폴리에틸렌 | 레이어 내부 : adhensive | 2.0-4.5mm |
| 외부 레이어 : 폴리에틸렌 | ||
| 에폭시 | 에폭시 | 200-400um |
| 두 레이어 에폭시 | 내부 레이어 : expoxy (녹색) | 400-800um |
| 외부 층 : 강도 에폭시 (세이 녹색) | ||
| 삼층 폴리에틸렌 | 내부 레이어 : expoxy (녹색) | 2.5-3mm |
소결 폴리에틸렌 계 코팅 삼층 압출 단면 또는 다층 용 DIN30670
매립 스틸 파이프 용 DIN30671 열경화성 플라스틱 코팅
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
한 레이어 / 더블 레이어 FBE 방청 코팅 분말 (200 ㎛ ~ 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.
