Seamless steel pipe production process|The seamless steel pipe is mainly achieved through tension reduction, and the tension reducing process is a continuous rolling process in which the hollow base metal does not have a mandrel. On the premise of guaranteeing the quality of the welding of the mother tube, the tension reducing process of the welded pipe is to heat the whole of the welded pipe to 950 degrees Celsius or more, and then to a variety of outer diameters and walls by a tension reducer (a total of 24 passes of the stretch reducer). The thick finished tube, the hot rolled steel tube produced by this process and the ordinary high-frequency welded pipe are essentially different. After heating in the heating furnace, the metallographic structure and mechanical properties of the weld and the parent metal can be completely consistent. The secondary tension reducer rolling and automatic control make the pipe's dimensional accuracy (especially the pipe roundness and wall thickness accuracy) better than the similar seamless pipe. Fluid tubes and boiler tubes produced in developed countries in the world have adopted a large number of welded tube seamless processes. With the development of society, the domestic hot-rolled welded tubes have gradually replaced the seamless tubes.
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Holland Mesh Fence
* Using high quality iron rod as raw material, the welded panel or rolled fence, after Galvanization, PVC Powders dipped coating; it can resist the corrosive and ultraviolet radiation very strongly.
Selection of high-quality wire welded together, the PVC or PE, PP powder after curing the surface of the coating, with strong adhesion, corrosion resistance, bright color and so on.
Manufacturing process: steel wire after the plastic coating, but also a separate plating, hot-dip and plastic coating.
* Mushroom special Tubes (48*1.5mm) is designed refined and scientific, with plastic caps on the top of the post.
The finished surface usually is Galvanized and Powder coating, or alternatively. It usually uses installation method of burying additional 50 cm pass panels height into the earth. Special sizes can be provided as the client`s request.
* Euro fence has good anti-corrosion properties, anti-aging, elegant appearance. Easy to install Can be widely used in industrial, agricultural, municipal, transportation and other industries fence, decoration, protection and other facilities. With good filtering accuracy, high load strength, low cost.
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