Main technical way to solve water supply pipeline corrosion problem are:

Thermal barrier coating is an advanced material and generally used in metal surface, such as gas turbines and engine parts, often in the ultra-high temperature environment, whcih can be seen as a waste heat management.

Large diameter LSAW steel pipe suit for conveying sea and land oil and gas, oil and natural gas, coal and ore oar medium pipeline , particularly appropriate Currently being built in our country "west to east gas pipeline project", can also be used for exports and replace imported.

Nearly all pipe making involves the welding process. The techniques in dealing with this procedure in most cases determine the difference between a hack job and good craftsmanship.

Consumption, high efficiency, welded steel pipe consumption process is simple. Types of specifications, equipment investment, but the average strength of less than seamless.

When large diameter spiral welded pipe bursting occurs, blasting mouth generally does not originate in the spiral weld, its safety Longitudinal because of the small weld suffered stress and the resultant stress.

Hot-rolled square tube welding steel used in construction is a major in the domestic steel market in both occupy an important ratio.

In the welding deformation theory, we can know that the large size of the weld will led to the greater deformation, welding the same size, the welding heat input on large, can lead to large deformation, the long seam welding, welding deformation will be small, asymmetrical seam or asymmetrical arrangement of the welding seam deviation will cause more serious to severe deformation.

Steel pipe surface treatment is a key factors to determine pipeline life, it is the ability to securely and steel pipe coating combined premise verified by research institutions, in addition to the life of the coating depends on the type of coating, coating quality and construction environment and other factors, steel pipe coating surface treatment on the life of about 50%, therefore, it should be strictly in accordance with the specification for the steel surface coating requirements, and continuously explore and summarize the continuous improvement of steel surface treatment method.

General Pipe: Average welded steel pipe used to transport low pressure fluid. With Q195A, Q215A, Q235A steel. Easy welding may also be used in other soft steel. Pipe to carry water pressure, bending, flattening and other experiments, there are certain requirements for surface quality, delivery is usually a length of 4-10m, often required length (or double length) delivery.

Method of checking can wipe with soapy water in the annealing furnace gap at each joint to see if run gas; places where gas is most likely to run into the annealing furnace tube and the tube place where seals are particularly vulnerable to wear and tear this place, always check often change.

In the steel manufacturing process, like a important uses for steel products, such as oil well pipes, boiler tubes, etc., are needed most hardened in order to obtain the desired mechanical properties. Cooling as a key link hardened steel heat treated for production efficiency, product quality and economic efficiency ultimately have a significant impact.