| The characteristics and application of elbow machine
Bend machine series of hot pushing elbow outer arc tensile plastic deformation is larger, the normal temperature, high temperature yield strength and tensile strength increases, plasticity and significantly lower back and toughness, so should make more reasonable production process, strict control of bend hole enlargement ratio, reducing elbow outer arc tensile plastic deformation, in order to obtain comprehensive mechanical properties.
The inner arc wall thickness of hot pushed elbow made by elbow machine does not increase, and the inner arc is exactly the high stress area of elbow. In order to ensure that the inner arc wall thickness of elbow meets the standard requirements of the product, the tube billet with appropriately thickened wall thickness should be selected for pushing.
During the forming process of hot push elbow, axial bending deformation and radial expansion are generated. Therefore, special attention should be paid to check whether cracks, microcracks and intergranular cracks occur on the inner and outer walls of elbow.
Hot elbow push system according to the wall thickness is not thinned theory, combined with the system of medium frequency induction heating on the technological characteristics and difficulties of small and medium-sized specifications stainless steel seamless elbow, with the appropriate design of the hollow core mold and core die inner hole is cooled to keep core mold wall in low temperature area, solve the drive system of medium frequency induction heating molding core in the process of heat intensity
Butt welding elbow is widely used in petroleum, chemical, textile and electrical and other modern industrial pipelines. The forming methods mainly include extrusion, extrusion, extrusion, extrusion and hot forming. Among them, extrusion, extrusion and extrusion are all formed at room temperature, which are commonly used in pipeline parts factory at present, but each has its own characteristics.
Our company not only produces medium frequency elbow machine, cold push elbow machine, elbow push machine and other elbow machine pipe fittings machinery, and sold them overseas, domestic and foreign customers to my factory gave a high evaluation, and very looking forward to cooperation
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