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Hot push elbow machine process

Hot push elbow machine process

Problems in hot pushing elbow of medium frequency elbow machine (especially for short radius elbow)

The elbow machine pushes the semi-finished product, and the pipe mouth of the elbow end presents the shape of horseshoe mouth. After testing, the diameter and ellipticity of the pipe mouth are out of tolerance, and the end face of the pipe mouth is uneven.The inner wall of the tube end is thin, and the thinning rate of the wall thickness is extremely poor.In the marking + cutting process, one end needs to cut off 30-50mm material, material utilization rate is low;In the process of production must be equipped with special equipment (sawing machine, press, shaping tire) and cutting workers.

To improve the manufacturing process of hot push elbow machine

3. Integrate "hot pushing and marking + cutting" into "pushing + cutting".

The improved elbow mechanism manufacturing process has the following advantages and characteristics: 1. Adoption of the whole material length push system, improve the material utilization rate and work efficiency 2. Integrate the hot push system and marking + cutting for push system + cutting to ensure the quality of the elbow and improve 3.

Problems in hot pushing elbow of medium frequency elbow machine (especially for short radius elbow)

The elbow machine pushes the semi-finished product, and the pipe mouth of the elbow end presents the shape of horseshoe mouth. After testing, the diameter and ellipticity of the pipe mouth are out of tolerance, and the end face of the pipe mouth is uneven.The inner wall of the tube end is thin, and the thinning rate of the wall thickness is extremely poor.In the marking + cutting process, one end needs to cut off 30-50mm material, material utilization rate is low;In the process of production must be equipped with special equipment (sawing machine, press, shaping tire) and cutting workers.

The elbow welding machine is a resistance welding machine that the welding parts are assembled into lap or butt joints and placed between two roller electrodes. The roller electrode pressurizes the welding parts and rotates. The continuous or intermittent pulse power is sent to form a continuous welding seam.It can also be said that seam welding machine is an evolution of spot welding.Stitch welding is used widely and sometimes in the manufacture of joints that require tightness

The thickness of the metal material to be welded is usually 0.1 ~ 2.5mm.

Working principle seam welding joint formation process (discontinuous) During seam welding, each solder joint also has to go through three stages: prepressing, electric heating and cooling crystallization.However, due to the rapid change of the relative position between the roller electrode and the weldment during seam welding, the three stages are not as obvious as those in spot welding.It can be considered as follows: 1) Under the direct pressing of the roller electrode

A metal heated by electricity is in the "electric heating stage".2) The adjacent metal that is about to enter the lower part of the roller electrode is subjected to certain preheating and part of the pressure of the roller electrode, and is in the "prepressing stage".3) The adjacent metal just coming out from under the roller electrode starts to cool on the one hand, and is still under the effect of partial pressure of the roller electrode.

1647-1643.