| Introduces the process of elbow production by cold push elbow machine
An elbow is a pipe fitting used at the bend of a pipe.In all the pipe fittings used by the pipeline system, it accounts for the largest proportion, about 80%.Usually, the choice of different materials or wall thickness of the elbow other forming process.Now manufacturers commonly used seamless elbow forming process are hot push, stamping, extrusion and so on.Divided into hot push elbow machine and cold push elbow machine.
Now we accept the cold extrusion elbow forming method.The forming process of the cold extrusion elbow is to use the special elbow forming machine to put the tube billet into the outer die. After the upper and lower die is closed, the tube billet moves along the reserved gap between the inner die and the outer die under the push rod to complete the forming process.The principle of cold extrusion elbow is very simple. The forming process of cold extrusion elbow is to use the special elbow forming machine to put the tube billet into the outer die. After the upper and lower die is closed, the tube billet moves along the reserved gap between the inner die and the outer die to complete the forming process under the push of the push rod.It is made of a horn mandrel head or mandrel into the mold, the pipe fittings into the mold, the mold should have two semicircle arcs, up and down one each, in the push process is a process along the mandrel bending.There is a support behind the cutting pipe section into the mandrel, behind a arch frame will be solid mandrel.There is a hydraulic rod jacking device in the center, which pushes forward through the hydraulic transmission top column.Push the pipe along the semicircle groove of the mold along the mandrel, until the top column reaches the end of the position, the limit switch locks away, and then push the pipe down, and the machining is done.After the shaping of the outer diameter to reach the size of the product requirements.The wall thickness is controlled by the wall thickness of the incoming material.In the process of pushing, the wall thickness should not change under the normal environment, but if it is due to the reasons of things, some places will produce signs of wall reduction, so as to usually lift material, wall thickness should be added some margin, to prevent the pushing due to local thickness reduction and out of tolerance.Elbow outside diameter, wall thickness size to meet the requirements.The following is a finishing process, at the end of the shot peening disposal penalty, the elbow inside and outside the surface of the oxide iron removal, the two ends of the beveling treatment in order to facilitate welding.Then at the end of the inspection, playing steel word, spraying paint, packaging and other processes, you can be stored, and then leave the factory.
The elbow made by the cold extrusion process of the inner and outer die has elegant shape, uniform wall thickness and small size faults. Therefore, the stainless steel elbow is particularly thin wall stainless steel elbow forming and more than accept this process.The precision of the inner and outer die used by this process is high.The requirements for the wall thickness of the billet are also strict.
Cold push elbow machine mainly produces stainless steel elbow
Cold push elbow machine is characterized by;High speed, do not touch the internal structure of steel.The disadvantage of cold push elbow machine is that it is not suitable for carbon steel elbow.Suitable for stainless steel and partial alloy steel.Aocheng Mechanical Pipe Fitting Equipment Co., Ltd. produces two kinds of cold push elbow machine and hot push elbow machine, hot push elbow machine is suitable for alloy steel and carbon steel elbow.Also produce three - way machine, expanding machine, press, beveling machine, pipe rolling machine, mold and so on.
Cold push elbow machine is also known as stainless steel elbow machine, is to meet the market stainless steel, alloy steel elbow production needs, research and development, also can meet the special requirements of the production of carbon steel elbow.At the same time, compared with cold elbow pushing machine and hot elbow pushing machine, it does not need intermediate frequency coil heating and saves energy.Before the cold push elbow machine pushes the elbow, the pipe billet needs to be cut off. The shape of the pipe billet is trapezoid, while the pipe billet of the hot push elbow machine is rectangular.
2006-2007.
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