Product News
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Pipe quenching and tempering
Pipe quenching is heated to above the critical temperature, holding time, and then quickly into the hardening agent to a temperature suddenly decreased to a rate greater than the critical cooling rate of rapid cooling, martensite is obtained based not equilibrium microstructure heat treatment met...Read more -
Heat pipe process
The process of the heat pipe: heat pipe is generally a hollow cylindrical tube, which part of the space is filled with an easily evaporating liquid. Always maintain the vacuum state in the tube, while similar among the evaporation of the liquid temperature and ambient temperature. When heat is ab...Read more -
Oil pipeline leak detection technology and application
The leak is the main oil pipeline running failure. Especially in recent years, the pipeline is to punch the Stolen well corrosion perforation resulting in the spill happened quite frequently, seriously interfere with the normal production, causing huge economic losses, only Shengli Oilfield annua...Read more -
Lifetime of spiral steel pipe
The lifetime of spiral steel pipe has relationship with decarburization, if the surface decarburize, surface strength and wear resistance will reduce the direct impact on the life of daily use. In the heat treatment process, it should be to try not to let the inner and outer walls and exposed to ...Read more -
How to prevent and solve the porosity problem of the steel pipe seam
Welded steel pipe is divided into two kinds according to its welding seam shape-straight seam steel pipe and spiral steel pipe. Steel pipe seam porosity affects not only the density of pipe welds, resulting pipeline leak, and will become a point of corrosion-induced, severely reducing weld streng...Read more -
Pipeline corrosion resistance to hydrogen sulfide
Hydrogen sulfide corrosion resistant pipeline steel mainly used to manufacture and transport sour gas pipeline. With the improvement of the delivery pressure and reduce the gas from the viewpoint of the cost of desulfurization, sometimes without desulfurization of the gas pipeline circumstances, ...Read more