straight seam submerged-arc welded pipe hydrotester

straight seam submerged-arc welded pipe hydrotester System 1

straight seam submerged-arc welded pipe hydrotester

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The introduction of spiral welded pipe/straight seam submerged arcwelded pipe hydrotester

Spiral welded pipe/straightseam submerged arc welded pipe hydrotester mainly is used to have the pressuretesting to spiral welded pipe or straight seam submerged-arc welded pipe. Ituses polyamine to have the end sealing and inner supporting large gas sealingmethods. It is assisted by oil water balance system. Besides, the computer canrecord, store, print and testing the results. Its advantages include pressuremaintaining stability, high safety and so on

The machine adopts the structure of the symmetrical plate tension rod, the center of force is in the symmetry center of the pull rod when testing pressure; the pull beam width on both sides is greater than the maximum diameter of the pressuretesting steel pipe, to ensure both sides security of the hydraulic press when testing pressure, the structuredesign is simple, the strength and stiffness superior, performance stable, easy to maintain and use;

Advantages

1 Pressurizing ways use high pressure intensifier.

2 The control system uses the system of “industrial computer (touch screen) +PLC", has automatic / manual / maintenance three work ways.

3. PLC selects Siemens S7-300/400 series, operation stable; control simple and flexible, has good scalability

4 The high-pressure water pump adopts frequency conversion control, boost rapid and stable, holding pressure fluctuation is small.

5 The host PC (touch screen) software real-time displays by pictures, curves, texts, and data, simple and intuitive.

6 Pressure-testing parameter setting is convenient and flexible and has storage, later called directly.

7 Has a perfect diagnostic function, the computer will provide real-time fault information, easy to maintain.

Q:What kind of material and what heat treatment are used for pressing roller (molding, feeding, cutting force, heavy load, heavy load) of sheet steel rolling machine?: Use 40Cr or 20Cr, Cr12.Cr12MoV, quenching and tempering treatment, think of hardness, high point, carburizing, nitriding, and consider adding lubrication device to extend its service life

Q:Improvement in rolling forming process: The rolling will produce a hardening layer on the surface of the workpiece. This layer has obvious delamination phenomenon with the internal material, which is easy to cause the surface layer to fall off;

Q:What is the surface rolling forming machine process?: Due to the rolling surface of metal plastic deformation, so that the surface microstructure of cold hardening and grain refinement, forming a dense fibrous, and the formation of residual stress, hardness and strength, so as to improve the surface wear resistance, corrosion resistance and compliance.

Q:Introduction of roll forming process: Not only threaded fasteners industry applications, automobiles, bicycles and other industrial sectors also use rolling forming process, processing complex shapes of parts.

Q:A roll forming machine, rolling out of the length is always not up to a fixed size, not too small, that is, more than that, what is the cause?: Yes, the width of the bearing plate can be a deviation from the length.

Q:Process mould for rolling forming process: A movable wire plate, made of the same fixed wire plate, for relative reciprocating motion. Roll forming is the design of different structures on the plate rolling on the workpiece. Roll out all kinds of thread, convex ring, knurling, end chamfering, groove with different width and thickness as well as other required shapes.

Q:Material and equipment for roll forming process: Rolling molding is usually through upsetting a blank cold heading machine, thread rolling machine rolling after processed. The equipment for thread rolling and rolling forming includes various reciprocating flat rolling machines, planetary wire rolling machines, two cylindrical roller spinning machines and three cylindrical roller spinning machines.

Q:What is rolling forming processing?: A special rolling tool is used to exert certain pressure on the surface of the workpiece so as to make the surface metal flow.

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