| Choose good pushers to produce beautiful standard elbows
The forming process of making 90 ° GB elbow is a process of using special elbow making machine, core die and heating device to make the billet on the mold move forward under the push of the machine, and be heated during the movement, expand diameter and bend forming.The deformation characteristic of hot push elbow is that the diameter of tube billet is determined according to the law that the volume of metal material is unchanged before and after plastic deformation, and the diameter of tube billet is larger than that of elbow. The billet is controlled through the core mold, and the deformation process of the billet makes the inner arc of the compressed metal flow compensated to other parts that are thinned due to diameter expansion.Thus an elbow with uniform wall thickness is obtained.Hot push elbow forming process has the characteristics of beautiful appearance, uniform wall thickness and continuous operation, and is suitable for mass production. Therefore, it has become the main forming method of carbon steel and alloy steel elbow, and is also used in the forming of stainless steel elbow of some specifications.
The heating method of forming process has medium frequency or high frequency induction heating ring, flame heating and reflection heating, which heating method is used to determine the main forming product requirements and energy situation.
The elbow produced by the elbow machine has beautiful appearance, uniform wall thickness and continuous production, which is suitable for mass production.
The elbow machine mainly pushes the carbon steel elbow and alloy steel elbow and other material elbow mechanism elbow making process flow: elbow is suitable for a pipe bend.In the pipeline system used in all pipe fittings, the largest proportion.About 80% usually, for different materials or Bo after the elbow selection of different forming process.Manufacturer commonly used seamless elbow forming process are hot push, from the teeth, extrusion and so on.Hot push elbow forming process is the use of special elbow machine, washing and heating device, so that the blank set on the mold under the push of the elbow machine forward movement, in the movement is heated, expanding and bending forming process.Hot push bend deformation characteristics are based on volume before and after plastic deformation rule of metal materials to determine the diameter of the tube billet, using the tube billet diameter bend diameter, through the core module and control the deformation of the process, is the internal arc compressed metal flow, the compensation to other parts of the thinned by hole diameter, wall thickness uniform Angle is obtained.The above pages are the advantages of the elbow machine.
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