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Introduction aux problèmes courants des matériaux de revêtement anticorrosion des tuyaux en acier

Les problèmes courants se répartissent grosso modo en trois types, à savoir l'enrobage inégal, l'égouttement des conservateurs et la formation de mousse sur les conservateurs. 1. Revêtement inégal. La manifestation fondamentale de ce type de problème est que l'agent de conservation est réparti de manière inégale sur la surface du tuyau en acier. Certaines parties sont recouvertes d'une couche trop épaisse, tandis que d'autres sont [...]

Tube soudé en bande galvanisée

Le feuillard d'acier galvanisé est traité par décapage, galvanisation, emballage et autres procédés. Il est largement utilisé en raison de ses bonnes performances anticorrosion. Il est principalement utilisé pour fabriquer des produits métalliques qui sont travaillés à froid et qui ne sont plus galvanisés. Par exemple : des produits métalliques tels que des quilles en acier léger, des colonnes en forme de pêche pour les garde-corps, des éviers, des [...]

Caractéristiques de polissage des tubes en acier galvanisé

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: […]

Avantages du tube composite revêtu de plastique

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 […]

Comment fabriquer des tubes d'acier à revêtement 3PE

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 […]

Processus de fabrication des tuyaux anticorrosion 3PE

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 […]

Température de revenu et propriétés mécaniques des pipelines

According to API5L, GB/T9711.1 pipeline steel pipe performance requirements, according to the different tempering temperature, tempering can be divided into the following: 1. Low temperature tempering (150-250 degrees) The microstructure obtained by low temperature tempering is tempered martensite. The purpose is to reduce the quenching stress and brittleness of the quenched steel on the premise […]

Le matériau de la canalisation

Application: Used for gas, water and oil transportation in petroleum and natural gas industry API SPEC 5L-2011 (Pipeline Specification), developed and published by the American Petroleum Institute, is used worldwide. The main material of the tube is L245, L290, L360, L415, L480, GR.B, X42, X46, X56, X65, X70, X80, X100 and other steel grade.

Classification des tubes galvanisés

Galvanized pipe, also known as galvanized steel pipe, is divided into hot dip galvanized and electric galvanized. Hot dip galvanizing layer thick, uniform coating, strong adhesion, long service life. Electroplating cost is low, the surface is not smooth, corrosion resistance than hot dip galvanized pipe is poor.Galvanized steel tube: hot dip galvanized steel tube steel […]