Lvy Lee

Spiral pipe(SSAW steel pipe) is a kind of steel pipe that is often used in our daily life. It has good anti-corrosion performance. Spiral pipes have relatively high environmental requirements when...

For decades, research on oil casing pipe damage has never stopped, and oil fields in various countries have invested huge manpower and material resources in research. People have studied the form...

The mechanical properties of steel is an important index to ensure the final use performance (mechanical properties) of the steel, and it depends on the chemical composition of the steel and the heat...

Because the multi-wire submerged arc welding of longitudinally welded pipes has the characteristics of large undercooling and fast welding speed, the equilibrium state is basically eliminated. If the...

a) The following phenomena occur when the boiler tube is damagedThe water level of the boiler drops rapidly, the steam pressure and the feed water pressure decrease, and there is a noticeable noise...

Seamless steel pipe (smls pipe) is a non-combustible building material, which has the characteristics of earthquake resistance and bending resistance. In practical applications, seamless steel pipes...

What is precision hydraulic seamless steel pipe? ——Refers to cold-drawn or cold-rolled precision seamless steel pipes with precise inner diameters for the manufacture of hydraulic and pneumatic...

The quality assessment process of ERW steel pipe consists of online non-destructive testing, metallographic inspection, flattening and flaring destructive tests, and hydraulic tests. Evaluation...

There are many ways to inspect the quality of LSAW steel pipes, among which physical methods are also the most commonly used inspection methods. Physical inspection is a method of measuring or...

Quality requirements of seamless steel pipes in production:1. Chemical compositionThe chemical composition of steel is one of the most important factors affecting the performance of seamless steel...

In the manufacturing process of ERW steel pipes, how to meet the technical requirements while ensuring product quality standards and customer needs? Analysis of factors affecting product quality...

In order to obtain the best heat treatment process for upgrading 27CrMo steel grade to P110 steel grade petroleum casing, the influence of heat treatment process on the structure and hardness of...

The fatigue strength of seamless steel pipe materials is extremely sensitive to various external and internal factors. External factors include the shape and size of the parts, surface finish and...

The submerged arc welding process(SAW) is suitable for the requirements of heavy industrial applications such as pipelines, pressure vessels and tanks, locomotive manufacturing, heavy construction...

Pickling passivation is a chemical reaction. First, the oxide scale and rust on the surface of the steel can be removed by the pickling solution, and the passivation process can be completed at the...