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        Seamless elbow
        Seamless elbow
        • PRODUCT NAME:

          Seamless elbow

        • DESCRIPTION:
          A seamless elbow is a kind of pipe that is used for pipe turning. In pipeline systems use all the more pieces, accounts for a bigger proportion of about 80%...

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        DESCRIPTION

        A seamless elbow is a kind of pipe that is used for pipe turning. In pipeline systems use all the more pieces, accounts for a bigger proportion of about 80%. In general, different forming processes are selected for the elbow of different materials. At present. The seamless elbow forming process used by the manufacturer is hot, pressing, extrusion, etc.

        Seamless elbow, seamless seamless steel elbow English name here or seamless pipe here, seamless elbow pipe fittings for its manufacturing process is different, is divided into hot rolling (extrusion) seamless elbow pipe and cold drawing (rolling) seamless elbow pipe fittings. Cold drawing tube is divided into two types: round tube and heteroid pipe.

        The raw material of the seamless elbow pipe is a round tube billet, which needs to be cut and processed by the cutting machine for about a meter of billet, and is sent to the furnace for heating. The billets are heated in a furnace and the temperature is about 1,200 degrees Celsius. Fuel is hydrogen or acetylene. Temperature control in furnace is a key problem. After the round tube billet is out, it will go through the pressure perforator to wear the blank. Generally more common piercer is conical roller piercer, which has high production efficiency, good quality and perforation diameter, which can wear many kinds of fittings. After perforation, the round tube billet has been rolled, rolled or squeezed by three rolls. After extruding, take out the diameter of the pipe. The sizing machine is used to form the pipe fitting through the high speed of the taper drill.

        Seamless elbow forming method

        1. Forging and pressing: use a type forging machine to push the end of the tube or part to reduce the outer diameter

        The commonly used forging machine has rotary type, connecting rod type and roller type.

        2. Roll rolling: generally not using the core shaft, suitable for the inner circle of thick wall tube. Place the core inside the pipe, and the outer circumference is pushed by roller, used for round edge processing.

        3. Pressing method: to extend the tube end to the required size and shape in the punch.

        4. Forming method: there are three kinds of methods are commonly used, a method called stretching method, another method called stamping method, and the third roller method, there are three or four roller, roller, an adjusting roller, two fixed adjusting fixed roller distance, finished pipe is bent.

        5. Bloating method: one is to place the rubber in the tube, and the upper part is compressed with the punch to make the tube bulge out. The other method is the hydraulic bulge forming, filling the middle of the tube into the liquid, the liquid pressure to drum the tube into the desired shape, and the production of the bellows is mostly used in this way.

        Seamless elbow making process

        Seamless elbow does not produce corrosion, pitting, rust or wear. Stainless steel is one of the most powerful materials in the building materials. Since the stainless steel has good corrosion resistance, it can keep the structural components for a long time to maintain the integrity of the engineering design. The raw material of the seamless elbow pipe is a round tube billet, which needs to be cut and processed by the cutting machine for about a meter of billet, and is sent to the furnace for heating. The billets are heated in a furnace and the temperature is about 1,200 degrees Celsius. Temperature control in furnace is a key problem. After the round tube billet is out, it will go through the pressure perforator to wear the blank. Fuel is hydrogen or acetylene.

        Generally more common piercer is conical roller piercer, which has high production efficiency, good quality and perforation diameter, which can wear many kinds of fittings. After perforation, the round tube billet has been rolled by three rolls, rolled or squeezed. After extruding, take out the diameter of the pipe. The sizing machine is used to form the pipe fitting through the high speed of the taper drill.



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