Steel pipe welding

When welding steel pipe is firstly liquidation clean welded joints of oil, paint, water, rust, and then based on wall thickness open groove, thick open and thin open smaller (angle grinder), then the gap is the right productcommon, which is the welding rod or wire diameter 1 - 1.5 times, if you groove, be careful not to open a speech appropriately to stay small. Tack welding at least three points, four points incomparable good work.

Teleparty welding of ERW pipe

Teleparty welding of ERW pipe

After midnight should be half and half welded steel pipe welding, the starting point for the best beyond the lowest point one centimeter or so, so good joints from the opposite.

If wall thickness of the pipe should be stratified at least two layers, the first layer of the whole ring of solder until they have finished welding the second layer.

Welding is also known as welding, Rong, is a way of heating, high temperature or high pressure bonding metal or other thermoplastic materials, such as plastic manufacturing processes and technologies.

Weld through the following three ways to achieve joint objectives:

Heating of bonding the workpiece to partial melting into pools, joint after solidification of molten pool and, if necessary, may join the molten filler accessory.

Heating of low melting point solder alone, without having to melt the workpiece itself, and solder the capillary connection parts.

Equal to or lower than the melting point of a workpiece temperatures combined with high pressure and vibration of laminated plastic or mutual penetration between the two workpieces, such as joint
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Depending on the welding process, welding can be subdivided into gas welding, resistance welding, arc welding and other special welding, laser welding, induction welding.Welding source of energy there are many, including a gas flame, an electric arc, laser, electron beam, friction, and ultrasound. In addition to use in the factory, welding can also be carried out in a variety of environments, such as open air, underwater and in space. Regardless of where the welding may pose a risk to the operator, so appropriate protective measures must be taken when welding. Welded to the body can cause injuries, including burns, electric shock, eye injury, inhalation of toxic gases, ultraviolet radiation, such as excessive.

Weled steel pipe specification, Standard and identification

Welded steel pipe (steel pipe manufactured with a weld) is a tubular product made out of flat plates, known as skelp, that are formed, bent and prepared for welding.