Such patent joins are nowadays manufactured in a rangethat covers virtually any WC installation.Pan fixings tips.Moving an existing WC pan isnt always easy.It is best toremove every trace of cement from the floor and, having achieved a dead-levelbase, to secure the WC pan with screws driven into plugs pushed into holesdrilled in the floor. Upstairs…
In the process of the automatic rolling mill
As we all know, in the process of the automatic rolling mill, due to thermal expansion of the mandrel, thin wall appears at the back-end of the steel tube.Because only with oblique mill rolling, compared with the ordinary rolling using plug mill, the seamless steel pipe inner surface is rough with large eccentricity. In recent…
LSAW steel pipe has large diameter and wall thickness
Test:Chemical Component Analysis, Mechanical Properties (Ultimate tensile strength, Yieldstrength, Elongation), Technical Properties (Flattening Test, Bending Test, Blow Test, Impact Test), Exterior Size Inspection, Hydrostatic Test, X-ray Test.Mill Test Certificate:EN 10204/3.. According to the API standard provisions,,LSAW steel pipe is the only designated for tube type when passing through Wholesale Belt Conveyors Manufacturers the cold region,…
When high-frequency currents pass through metal conductors
When high-frequency currents pass through metal conductors, two strange effects occur: skin effect and proximity effect, high-frequency welding is to use these two effects to weld the steel pipe, these two effects are the basis for achieving high-frequency welding of metal.2mm to about 0…Physical seamlessness means that there is a difference between the metallographic structure…
Developments of black steel pipeWhitehouse’s method
Developments of black steel pipeWhitehouse’s method was improved upon in 1911 by John Moon. After cooling, the brick was removed, leaving a hole in the middle. In 1815 he invented a coal burning lamp system and wanted to make it available to all . In 1825 Comelius Whitehouse developed the “butt-weld” process, the basis for…