The Daily Maintenance of the Seamless Welded Steel Pipe

The time of issue:2014-1-9 9:12:49       Author:

The black steel pipe is an important steel pipe that is used in oil and petroleum industries.  Although the black steel pipe is a kind of seamless welded steel pipe, we know not much about the seamless steel pipe, its function, manufacture technique or maintenance. This article will tell you the most important things about the seamless welded steel pipe. The seamless welded steel pipe is a long strip rolled steel that has no seams around and a hollow section. The hollow section of the seamless welded steel pipe makes it act as pipes used for delivering fluid. And the seamless welded steel pipe used in machinery process has lighter weight under the same bending resistant and twisting strength compared with solid steels like round steels. The seamless welded steel pipe is a kind of economical steels that are widely used in producing structural components as well as the machine parts such as transmission shaft of the motor vehicles, oil drilling pipe as well as the steel scaffoldings in building operations.

Well, in the middle of producing the seamless welded steel pipe, the acid pickling process will always be involved. However, what problems should we pay attention to in the course of carrying out acid pickling?

First of all, it is necessary to wear labor protection appliances before carrying out acid pickling. And then check the working environment of the spot carefully. The main inspection is the straps of the steel tubes. Only after carefully acknowledgement can we carry out the working. Second, in the middle of the acid pickling, it is mainly to use hydrochloric acid to proceed with acid pickling. The best hydrochloric acid content is 18% to 20%. The third one is that the operators need to know better the temperature as well as the density and the tonnage of the groove. All these can be measured with the professional measuring equipments. Fourth, for steel pipes that need acid pickling, it is better to control the weight of 2~5 tons, time 5 to 15 minutes. And the time needs to be adjusted according to the weight. The steel pipes should be vibrated frequently in the course of acid pickling. And during descending pipes into the acid groove, it is better to incline the pipes to avoid hurt people.

And the seamless welded steel pipe should be placed in storage that has good drainage with clean environment. In addition, they should be away from the factories that create gas as well as the dust. And the storage should ventilate in sunny days, and pay attention to damp proof in rainy days. And do not put them together with acid fluid which is easy to corrode the black steel pipes or the seamless welded steel pipes.

More Steel Pipe Products, Please Click:

Tinplate Coil

Reducer

Tee

• Prev:The Difference Between the Black Steel Pipe an...
• Next:What Is the Black Steel Pipe?