Product Information
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Thermal deformation and microstructure evolution of thick-walled welded steel pipes
First, thermal deformation and microstructure evolution of thick-walled welded steel pipes: Thick-walled welded steel pipes are a precipitation-strengthened nickel-based high-temperature alloy that is difficult to deform. They are similar in composition to the former Soviet Un...Read more -
Implementation standards and technological progress of straight seam steel pipes
Welded steel pipes, also known as welded pipes, are steel pipes made by welding steel plates or steel strips after curling and forming. The production process of welded steel pipes is simple, the production efficiency is high, the varieties and specifications are many, and the...Read more -
Reasons for sand eyes at the weld of spiral seam submerged arc welded steel pipe
Spiral steel pipe is made by bending the strip steel in a spiral direction through a coiling machine and then welding it through a capacitor double-sided submerged arc. In the process of spiral steel pipe welding production, many galvanized channel steel situations such as lea...Read more -
Quality inspection methods commonly used in spiral steel pipes in industrial projects
The quality inspection methods of spiral steel pipes in industrial projects are as follows: 1 Judging from the surface, that is a visual inspection. The visual inspection of welded joints is a simple procedure with a wide variety of inspection methods. It is an important part ...Read more -
Tips for identifying inferior steel pipes
Fake steel pipes are prone to folding. Folding is a variety of fold lines formed on the surface of the steel pipe, and this defect often runs through the entire longitudinal direction of the product. The reason for the folding is that the inferior manufacturers pursue high eff...Read more -
How to solve the deformation problem of the industrial spiral seam submerged arc welded steel pipe
The spiral seam submerged arc welded steel pipe is rotated and drilled and begins to enter the soft formation. Under the action of the three-cone wheel, the drill bit first produces elastic shear deformation of the formation and then is removed under the pressure of the three-...Read more -
Treatment methods of epoxy resin-coated steel pipes in industrial projects
First, the pretreatment requirements of plastic coated steel pipes Plastic coated composite steel pipes usually refer to double-sided plastic coating, also known as internal and external plastic coated pipes. For composite steel pipes, the early rust removal technology plays a...Read more -
“Pretreatment of the inner surface of steel pipe” in the construction of pipeline anti-corrosion layer
1. Importance of surface pretreatment The purpose of surface pretreatment is to make the surface to be coated reach the rust removal quality and roughness required by the selected coating, and ensure good adhesion between the surface to be coated and the covering layer. The me...Read more -
Q390B steel pipe is a high-strength steel pipe with superior performance and wide application
Q390B steel pipe is a high-strength steel pipe with superior performance and wide application. It has excellent strength and durability, so it has been widely used in various fields. 1. Characteristics of Q390B steel pipe Q390B steel pipe is a kind of high-strength steel pipe,...Read more