① appearance inspection: artificial lighting conditions, standards, experience, rationality, tube rotation. ② non-destructive testing. Ultrasonic te...
Date:2018-03-06 Tags:Steel surface quality inspection
Boiler pickling steps are as follows First, start the pickling, boiler economizer, fill the inner cylinder and soften the water wall. ...
Date:2018-03-06 Tags:Boiler Pickling
Pipe shall not be directly piled on the ground, steel or concrete surface, the first layer of steel pipe from the ground distance of not less than 0.2...
Date:2018-03-06 Tags:Storage of Steel Tube
Pipe bending strength mortar coating test tube diameter, easy bending pipe, smooth and easy. Hour diameter easy to bend. It is considered that the coa...
Date:2018-03-05 Tags:Mortar Lined Steel Pipe
High-pressure steel pipe for the manufacture of steel pressure vessels and pipe quality carbon steel, alloy steel and stainless steel seamless steel p...
Date:2018-03-05 Tags:High Preesure Steel Pipe
Resistance welding is the workpiece through the electrode pressure, the use of current through the resistance thermal contact surface and the adjacent...
Date:2018-03-05 Tags:The advantages and disadvantages of resistance welding
Simple, easy to use, economical and practical, while adding high-performance corrosion inhibitors, corrosion inhibitors to prevent metal corrosion...
Date:2018-03-05 Tags:Passivation
Seamed pipe is the strip or plate bent into a circular, square and other shapes, and then welded into the surface of the connecting pipe. Pipe is the ...
Date:2018-03-05 Tags:What is Seam Pipe
The unqualified mechanical properties of seamless steel pipe mainly in its low elongation, yield point is not obvious, the mechanical properties of th...
Date:2018-03-02 Tags:Disqualification of Seamless Pipe Mechanical Properties
1, metal pipe, rod, wire testing, do not need to contact, do not need the coupling medium. Therefore, test speed, easy to automate the test, especiall...
Date:2018-03-02 Tags:Features of Eddy Current Testing
Welded pipe joints suitable medium: oil, water, gas and other non-corrosive or corrosive media, welding seals require more flexible steel pipe specifi...
Date:2018-03-02 Tags:Pipe Joint Bonding
Seamless steel pipe and longitudinal welded pipe compared to the following: 1, high precision Diameter and wall thickness deviation, straight seam w...
Date:2018-03-02 Tags:SMLS or ERW？
Pipe surface roughness is the machined surface with small spacing and small valley irregularities. The distance between two wave crests or two troughs...
Date:2018-03-02 Tags:Pipe Surface Roughness
Hot-rolled seamless steel billet can be forging blank, billet, slab, billet centrifugal casting. Short or long blank blanks are peeled off in the mach...
Date:2018-03-01 Tags:Hot Extruded Seamless Steel Pipe
Weld and seamless pipe poor Concentricity: Manufacturing Process for Seamless Pipe A hole of stainless steel billets are fired at a temperature of 22...
Date:2018-03-01 Tags:Seam and Seamless Pipe
