News and Information

Company News

Industry Trends

Industry Trends

What principle is used in anti-corrosion steel pipes?

What principle is used in anti-corrosion steel pipes?

2022-01-04

Coating-based corrosion protection involves forming a uniformly dense coating on the surface of metal pipes after rust removal, which can isolate the pipe from various corrosive media. Increasingly, anticorrosive coatings for steel pipes are made using composite materials or composite structures. These materials and structures must exhibit excellent dielectric properties, physical performance, stable chemical behavior, and a wide operating temperature range.

View details
What factors affect the quality of anti-corrosion steel pipes?

What factors affect the quality of anti-corrosion steel pipes?

2021-12-27

Anti-corrosion steel pipe is a widely used, property-controlled steel primarily employed for transporting fluid substances. It is also extensively utilized as a mechanical component and is an exceptionally well-suited controlled steel. Due to its outstanding performance, it plays an irreplaceable role in social production and daily life. Therefore, for steel pipes, their quality directly determines their value. So, what factors influence the quality of anti-corrosion steel pipes? Here’s a detailed introduction from our editor.

View details
Do you know these maintenance methods for large-diameter anti-corrosion steel pipes?

Do you know these maintenance methods for large-diameter anti-corrosion steel pipes?

2021-12-21

In modern enterprises, large-diameter anti-corrosion steel pipes with plastic-coated threads offer excellent features and benefits. First, in terms of product characteristics and performance, these pipes exhibit good insulation, flexibility, and corrosion resistance, enabling them to perform even better in new power construction and renovation projects under various environmental conditions.

View details
Anti-corrosion methods for large-diameter anti-corrosion steel pipes

Anti-corrosion methods for large-diameter anti-corrosion steel pipes

2021-12-14

Coating-based corrosion protection is generally the primary method used for large-diameter anti-corrosion steel pipes. If you'd like to learn more about anti-corrosion coatings for large-diameter steel pipes, don't miss the following information. Coating-based corrosion protection for large-diameter steel pipes involves evenly applying a layer of paint onto the surface of rusted metal pipes, thereby isolating them from various corrosive media. This is one of the fundamental methods for steel pipe corrosion prevention. With advancements in technology, an increasing number of large-diameter anti-corrosion steel pipe materials and composite structures are being used as corrosion-resistant coatings, as these materials and structures offer superior dielectric properties, physical performance, stable chemical characteristics, and broad temperature adaptability compared to conventional materials. To prevent corrosion inside pipelines, reduce frictional resistance, and increase production efficiency, a thin film is applied to the inner wall of the pipeline. Typically, amine-cured epoxy resins and polyamide epoxy resins are used as anti-corrosion materials, with coating thicknesses ranging from 0.038 to 0.2 millimeters. The inner wall of the pipe must undergo surface treatment to ensure that the coating adheres firmly to the pipe wall. Since the 1970s, interior and exterior wall coatings have often used the same materials, allowing them to be applied simultaneously. To minimize heat loss from small-diameter crude oil or fuel oil pipelines made of large-diameter anti-corrosion steel pipes into the surrounding soil, an insulating and anti-corrosion composite layer is typically added externally to the pipeline as a thermal insulation layer. Rigid polyurethane foam, which is soft in texture and suitable for temperatures ranging from -185 to 95 degrees Celsius, is commonly used as the standard thermal insulation material. Additionally, to enhance its strength, a high-density polyethylene layer is usually added on top of the insulation layer, forming a composite structure that effectively prevents groundwater from seeping into the insulation layer. If the outer protective casing of a large-diameter anti-corrosion steel pipe is made of polyethylene, no additional anti-corrosion treatment is generally required. Polyethylene is odorless and non-toxic, feels waxy to the touch, and boasts excellent low-temperature resistance (operating temperatures can range down to -70 to 100 degrees Celsius). It has good chemical stability, resisting corrosion by most acids and bases (anti-oxidation), is insoluble in common solvents at room temperature, and exhibits low water absorption. However, since it is a linear molecule, it can slowly dissolve in certain organic solvents without swelling, and it also possesses outstanding electrical insulation properties.

View details
Factors Affecting the Quality of Large-Diameter Anti-Corrosion Steel Pipes

Factors Affecting the Quality of Large-Diameter Anti-Corrosion Steel Pipes

2021-12-02

Large-diameter anti-corrosion steel pipe is a widely used, property-controlled steel primarily employed for transporting fluid substances. It is also extensively utilized as a component in mechanical parts and is an exceptionally suitable control steel. Thanks to its outstanding performance, it plays an irreplaceable and vital role in social production and daily life. Therefore, for steel pipes, their quality directly determines their value and significance. So, what factors influence the quality of large-diameter anti-corrosion steel pipes?

View details
What should be noted during the construction of coated composite pipes?

What should be noted during the construction of coated composite pipes?

2021-11-30

What precautions should be taken when using coated composite steel pipes? As we all know, coated composite pipes are widely used due to their outstanding performance characteristics—especially their excellent corrosion resistance, which is highly favored by users. When connecting coated composite steel pipes, certain tools are required, and these tools are frequently employed in pipeline construction.

View details
What are the environmental requirements for coated composite pipes?

What are the environmental requirements for coated composite pipes?

2021-11-26

Plastic-coated composite pipes feature excellent compressive strength and thermal insulation. First, they serve to protect electrical wires, making electric leakage impossible. Moreover, the walls of these plastic-coated composite pipes are relatively smooth and free of any burrs.

View details
Plastic-coated composite pipes can be used in multiple fields!

Plastic-coated composite pipes can be used in multiple fields!

2021-11-24

Plastic-coated composite pipes are cost-effective products within the steel-plastic composite pipe family, with a wide range of applications—including water supply and drainage systems, fire sprinkler systems, dedicated pipeline networks for gas and oil transmission, cable conduit protection systems, and more. They have now fully permeated all aspects of social production and daily life. Let’s invite our expert from the plastic-coated composite pipe manufacturer to introduce you to their applications in these fields.

View details
How is the water resistance of coated composite pipes?

How is the water resistance of coated composite pipes?

2021-11-18

Polymer anti-corrosion powder coating for coated composite pipes: Coated composite pipes are steel-plastic composite pipes made from welded steel pipes as the base material. They undergo a process that includes sandblasting, chemical double pretreatment, preheating, internal and external coating, curing, and post-processing. These pipes exhibit excellent overall performance, strong corrosion resistance and mechanical properties, good chemical stability and water resistance, and also feature drag-reducing, anti-corrosion, compression-resistant, and antibacterial capabilities.

View details
What preparations are needed when using coated composite pipes?

What preparations are needed when using coated composite pipes?

2021-11-12

Before installing the coated composite piping, the following conditions must be met: all relevant technical documents, such as construction drawings, must be complete; technical briefing must have been conducted; the appearance of the coated pipes and accessories required for installation must be inspected; and the product certificates, specifications, models, types, and quantities must be verified.

View details
< 1...345...10 > proceed page