News
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Anti rust coating for oil pipelines
Methods of anti rust coating for oil pipelines (1) pipe rust rust → brush painting asbestos powder material mixing the clay piece of barbed wire wrapped insulation materials → wiping asbestos cement protective shell corrosion paint brush. (2) Pipeline brush rust rust → dressing perlite tile galva...Read more -
Continuous hot dip galvanizing process technology
Continuous hot dip galvanizing process has Sendzimir, modified Sendzimir US Steel Union law three kinds. Sendzimir method and improved Sendzimir process is simple, low cost of the product, but due to direct flame heating, although steel rolling oil can burn the surface, but the impact of the stri...Read more -
HFW steel pipe defects in production
High frequency welded steel pipe if produce control is better, fusion surface of molten metal or oxide will be left. If the cutting of a weld sample polishing, etching, and observed under the optical microscope, the heat-affected zone is shaped like a drum, because the edge of the strip entering ...Read more -
Groove connection
Groove connection is a new method of steel pipe connections, also called clamp connections, which has many advantages. Automatic sprinkler system design specifications proposed pipeline connection system should be used grooved or threaded fittings, flanges; system pipe diameter equal to or greate...Read more -
Exhaust pipe
Exhaust pipe installed in the engine exhaust manifold and muffler, which make the entire exhaust system was flexible coupling, which play a vibration and noise reduction, easy installation and extended exhaust muffler system life role. Exhaust pipes are mainly used for light trucks, mini trucks a...Read more -
ERW Pipe coating
The surface condition of steel pipe is known as the environment that this is through the steel pipe coating with the surrounding soil insulation, pipe surface condition is different from the four weeks the soil. Therefore pipe anti-corrosion layer is an important barrier to prevent soil erosion. ...Read more