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What are the processes of sawing spiral steel pipes
Do you know how spiral steel pipes are sawed? What are the issues that need attention? After a series of processes such as forming, welding, and cooling, spiral steel pipes still need to be sawed. In this link, the length of the technical spare ruler directly affects the quality and sales of the ...Read more -
Wall thickness accuracy and straightening method of straight seam steel pipe
Controlling the wall thickness of straight seam steel pipe is a difficult point in steel pipe production. At present, the methods of wall thickness accuracy of straight seam steel pipe manufacturers in production generally include: 1. Heating of pipe blank: heating should be uniform, and rapid te...Read more -
Advantages and installation points of the industrial plastic-coated steel pipes
Plastic-coated steel pipes, also known as plastic-coated pipes, steel-plastic composite pipes, and plastic-coated composite steel pipes, are steel-plastic composite steel pipes that use steel pipes as the base, and weld a layer of plastic anti-corrosion layer on the inner surface of the steel pip...Read more -
Correct operation and acceptance method of straight seam steel pipe
At present, there are more and more types of straight seam steel pipes. With the rapid development of strip steel continuous rolling production and the advancement of welding and inspection technology, the welds are constantly improving, the varieties and specifications of welded steel pipes are ...Read more -
Stages and standard parameters of the mechanical expansion process of large-diameter steel pipes
First, the stages of the mechanical expansion process of large-diameter steel pipes: The steel plate is first pressed into a U shape in the forming die, then pressed into an O shape, and then internal and external submerged arc welding is performed. After welding, the diameter is usually expanded...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 equipment investmen...Read more -
The main reasons for the decline in the quality of steel pipe bending pipe
Analysis of the main reasons for the decline in the quality of steel bending pipe and precautions. During pure bending, the outer arm wall of the neutral layer of the steel pipe is thinned by the tensile stress &1 under the action of the external force M, and the inner side is subjected to co...Read more -
Composition and production process of epoxy resin anti-corrosion steel pipe
First, the composition of epoxy resin anti-corrosion steel pipe 1. Steel pipe: seamless steel pipe, straight seam steel pipe, spiral steel pipe and other steel pipes 2. Epoxy resin coating This product is a two-component, high-solid coating with epoxy resin as the main agent. It is divided into p...Read more -
The main uses and characteristics of steel structures in common industrial projects
First, the characteristics of steel structures 1. Steel structures are light in weight and high in bearing capacity: they are lightweight and high-strength materials 2. Steel is close to a homogeneous isotropic body: when steel is divided into tiny pieces, each piece will have roughly the same me...Read more -
How to choose welding methods when welding steel pipes
The commonly used welding methods in steel pipe welding, installation, and construction in the petroleum, chemical, natural gas, shipbuilding, and other industries are mainly the following: ① SMAW, due to its slow welding speed and the welding quality being greatly affected by the operator, its a...Read more -
Precautions for quality inspection of steel pipe welds
Welding quality inspection refers to: using methods such as investigation, inspection, measurement, testing, and detection to compare welding quality with the use requirements of welded steel pipes, prevent continuous production of unqualified steel pipes, and avoid the occurrence of quality acci...Read more -
Why do some stainless steel pipes need degreasing
We all know that stainless steel pipes need to be pickled and passivated before leaving the factory. However, sometimes users ask for re-degreasing of the pipes? For pipes, the more reasonable degreasing should be completed on-site, that is, after all the pipes are installed, the degreasing shoul...Read more