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The method of derusting bent pipe and the factors affecting its springback

2019-07-05 16:40:39

Derusting method of elbow pipe:

On the elbow pipe derusting, also pay attention to cleaning, should be used solvent, emulsion cleaning appearance, to achieve the removal of grease, oil, dust, smoothing agent and similar organic compounds; Later, on the elbow pickling, elbow corrosion protection should pay attention to the use of chemical pickling, in this way, can also remove the oxide skin, rust, old coating.

When the elbow is derusting, we should also pay attention to the spray derusting, after high power motor drive the jet blade high-speed torsion, so that steel sand, wire segment, minerals and other abrasive in centrifugal effect on the appearance of the elbow spray disposal.

Factors affecting the spring back of elbow:

In the actual design, it is necessary to pay attention to the bending of the pipe bending equipment, when the metal material deformation, and is bent into an Angle. When the external force is removed, the bent part of the pipe returns to its original condition. The measured bending Angle of the pipe is smaller than the required bending Angle, which is commonly referred to as the rebound of the pipe. Let's talk about the factors that affect the rebound of the extremely large bend.

Different materials, different diameters, different bending radii, different tooling and different process parameters used to adjust the bending machine will affect the rebound of the very large bend. There are many factors affecting springback, but after the adjustment of the machine tool, the process parameters have been determined, and in the case of bending a batch of materials, determine the relationship between bending Angle and springback.

Bend at the time of design, also will pay attention in the processing conditions, to a large extent direct simplifies some of the factors that influence the springback when on the one hand, the actual use of time, it also can make the pipe bender bending the arm Angle with the tube bending Angle as linear relation, so that is can determine the springback of a simple and very practical method.