Shandong Dorco Heavy Machinery Co., LTD. is a manufacturer of spiral welded pipe machine. The process involves rolling a low carbon or low alloy structural steel strip into a tube blank at a specific spiral angle and then welding the tube seam together.
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On August 10th, the technical team of Shandong Duoleke Heavy Industry Machinery Co., Ltd. went to various places to conduct follow-up visits and exchanges on the operation of the equipment, with the aim of providing technical guidance for the production work of the customer company.
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Forging is a process of changing the mechanical properties and internal structure of metal forgings through plastic deformation, which can improve the bearing and impact resistance of the parts themselves. In the aircraft body and engine structure, the important parts of the load-bearing and force-transmitting structures generally need to be forged. In aero-engines, aeronautical forgings are currently mainly used in the four major components of fans, compressors, turbines, and combustion chambers. They mainly play the roles of containment, connection, support, and sealing, and are very important parts.
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At present, the ring rolling process is widely used at home and abroad, such as train hubs, bearing inner and outer rings, gear rings, bushings, flanges, crane rotating rims and various reinforcing rings. The size and weight range of the processed parts is relatively large: diameter from 40mm-10000mm, height from 10mm-1000mm, weight from 0.2kg-82000kg, with cross-sections of various shapes.
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The ring rolling machine is mainly used to produce ring parts. Compared with forging molding, the ring rolling process has greater economic and technical advantages, which are mainly manifested in:
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Rolling ring forgings refer to forgings that use a hydraulic press to upset and punch the forging blank, and then roll it into a ring with an upper ring rolling machine, and then heat treat and finish the forgings as required. The key link is ring rolling, also known as hole reaming, which is one of the unique forming methods of ring parts. The schematic diagram of the ring rolling machine is as follows. During ring rolling, the motor drives the rolling wheel to rotate through the reduction box. The rolling wheel pulls the blank into the blank through the friction between it and the ring blank and spins continuously. The gap between the ring blank and the core roller The frictional force drives the core roll to rotate, and at the same time, the center distance between the rolling wheel and the core roll gradually decreases until the deformation ends.
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