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The Function Of Plastic Coated Steel Pipe

6月 6, 2023 /0 コメント/カテゴリ: /作成者:

The buried pipeline adopts the transmission line iron tower of plastic-coated steel pipe, which is composed of towers connected by tower pole devices. The tower is made of section steel. The steel surface of the tower rod and the inner and outer surfaces of the tower rod are hot-dipped with a modified polyethylene plastic layer. Plastic-coated steel pipes are steel pipes coated with red modified epoxy resin powder inside and outside. It is a new type of steel pipe made on the basis of steel pipes through sandblasting chemical pretreatment, preheating, internal and external coating, curing, and post-treatment. Successfully solved the problems of burial, corrosion and scaling of plastic-coated steel […]

How To Make Steel Pipe With Epoxy Powder Anticorrosion

5月 23, 2023 /0 コメント/カテゴリ: /作成者:

Epoxy powder coating is applied by electrostatic spraying process, forming a film at one time. This epoxy powder coating is a kind of thermosetting coating, which is processed by mixing and destroying solid epoxy resin, curing agent and various additives. The steel pipe is preheated by shot blasting and intermediate frequency before painting, and then the epoxy powder coating is sprayed on the surface of the heated steel pipe by electrostatic spraying method, melted and bonded to the surface of the steel pipe, and solidified to form a coating. FBE coating is generally a film-forming structure epoxy powder coating. The production raw materials include: solid epoxy resin with an epoxy […]

Repair Of Damaged Surface Of Anti-corrosion Spiral Steel Pipe

5月 9, 2023 /0 コメント/カテゴリ: /作成者:

After the surface is mechanically damaged, the anti-corrosion spiral steel pipe must be repaired. When the scratches do not cause leakage, the two circular fillet welds between the casing and the steel pipe body do not need to be welded. If it leaks, it needs to be welded. The sleeve is directly subjected to the internal pressure caused by the liquid, therefore, in this case the thickness of the sleeve is usually not less than the wall thickness of the pipe. For surface mechanical damage, it is usually repaired by casing. The sleeve consists of two parts with two longitudinal seams welded from two laths. This has the advantage that […]

Defects Of Galvanized Square Tube Finishing and Its Prevention

4月 23, 2023 /0 コメント/カテゴリ: /作成者:

The quality requirements of galvanized square tubes are very high. However, due to the inevitable corresponding quality defects in each process of steel pipe production, and some steel pipes are in service under some special environmental conditions, in addition to the overall performance of the steel pipe, the accuracy of the outer diameter and wall thickness, and the flat surface In addition to the requirements for straightness, special requirements are also put forward for its surface, end face, anti-corrosion, etc. In order to meet the above requirements, the steel pipe needs to be straightened and defect repaired after cooling; the pipe end must be processed; the steel pipe after passing […]

Introduction To Common Problems Of Anti-corrosion Steel Pipe Coating Materials

3月 28, 2023 /0 コメント/カテゴリ: /作成者:

Common problems can be roughly divided into three types, which are uneven coating, dripping of preservatives, and foaming of preservatives. 1. Uneven coating. The fundamental manifestation of this kind of problem is that the preservative is unevenly distributed on the surface of the steel pipe. Some parts are too thickly coated, while some parts are too thin or not coated with oil at all. Therefore, the thickness of the coating in the place where the coating is too thick exceeds the standard, resulting in waste; and the place where the coating is too thin or not covered will reduce the anti-corrosion ability of the steel pipe, resulting in final corrosion. […]

Galvanized Strip Welded Pipe

3月 15, 2023 /0 コメント/カテゴリ: /作成者:

Galvanized steel strip is processed by ordinary steel strip pickling, galvanizing, packaging and other processes. It is widely used because of its good anti-corrosion performance. It is mainly used to make metal products that are cold-worked and no longer galvanized. For example: metal products such as light steel keels, peach-shaped columns for guardrails, sinks, rolling doors, bridges, etc. General civilian use. Processing household appliances, such as sinks, etc., can strengthen door panels, etc., or strengthen kitchen utensils, etc. achitechive. Light steel keels, roofs, ceilings, walls, water barriers, rain decks, rolling shutter doors, warehouse inner and outer panels, insulation pipe shells, etc. household appliances. Reinforcement and protection in household appliances such […]

Galvanized Steel Pipe Polishing Features

3月 8, 2023 /0 コメント/カテゴリ: /作成者:

In order to prolong the service life of pipelines, pipeline anti-corrosion construction has become an indispensable process in the pipeline production process; with the continuous development and production of manufacturers, various types of anti-corrosion spiral steel pipes have appeared on the market. The more common anti-corrosion types of spiral steel pipes on the market are: epoxy resin anti-corrosion, 3PE anti-corrosion, cement mortar anti-corrosion and epoxy asphalt anti-corrosion; different types of anti-corrosion steel pipes have different uses, and spiral welded steel pipes refer to those with seams on the surface. Steel pipes, which are welded with steel plates or steel plates to form round or square shapes; Spiral steel pipe factory […]

Advantages Of Plastic Coated Composite Pipe

2月 28, 2023 /0 コメント/カテゴリ: /作成者:

The plastic-coated composite pipe is made of welded steel pipe as the base material, and is made by sandblasting chemical double pretreatment, preheating, plastic coating, curing, post-treatment and other processes. It has excellent comprehensive properties, strong mechanical corrosion resistance, good chemical stability and water resistance, and has functions such as corrosion resistance, pressure resistance, and antibacterial. It is generally not restricted by the conveying medium, and the plastic coating has a strong bonding force with the steel. Coating material: Epoxy resin (EP) is suitable for the working environment. The steel pipe coating below 80 °C has high adhesion, high hardness, good impact resistance, and good chemical corrosion resistance. The advantages […]

How To Make 3PE Coating Steel Pipes

2月 22, 2023 /0 コメント/カテゴリ: /作成者:

3PE Coating standard are ANSI/AWWA C104/A21.4 American National Standard for Cement-Mortar Lining for Ductile-Iron Pipe and Fittings for Water, ISO 21809 Petroleum and natural gas industries — External coatings for buried or submerged pipelines used in pipeline transportation systems, DIN 30670 Polyethylen coatings of steel pipes and fittings. The normal bare pipe will be corroded in the severe environment and its lifetime will be reduced, making the construction and maintenance cost very high. But due to every layer of the 3PE coating system has its good performance, the 3PE coated pipe can protect the pipe in the severe environment and extend its lifetime to 30-50 years even longer. it can significantly […]

3PE Anti-corrosion Pipe Manufacturing Process

2月 13, 2023 /0 コメント/カテゴリ: /作成者:

The base material of 3PE anti-corrosion steel pipe includes seamless steel pipe, spiral steel pipe and straight seam steel pipe. The three-layer polyethylene (3PE) anti-corrosion coating has been widely used in the oil pipeline industry due to its good corrosion resistance, water vapor resistance and mechanical properties. The anti-corrosion layer of 3PE anti-corrosion steel pipe is very important to the life of buried pipelines. Some pipelines of the same material will not corrode after being buried underground for decades, and some will leak within a few years. It is because they use different outer anti-corrosion layers. 3PE anti-corrosion generally consists of 3 layers of structure: The first layer of epoxy […]