Manufacturing process of ultra-large type wheel belt forge piece

Abstract

The invention discloses a manufacturing process of an ultra-large type wheel belt forge piece. The manufacturing process comprises the following steps of carrying out heat treatment on a plate blank; cutting the plate blank according to a preset size to obtain unit blanks; milling, cleaning and polishing the unit blanks so that the roughness and the cleanliness can reach preset threshold values; stacking the unit blanks on a stacking platform according to a preset sequence to obtain stacked blanks; loading the whole stacking blanks into a vacuum chamber to be subjected to vacuum electron beam seal welding to obtain a seal welding blank; performing forging and cogging on the seal welding blank; and rolling and forming the seal welding blank by radial-axial rolling to manufacture the ultra-large type wheel belt forge piece. According to the method, the process forming method for reducing the consumption of raw materials and improving the surface quality of the blank is provided, and the ultra-large wheel belt forged piece which is small in composition segregation, uniform in structure, complete in streamline and low in comprehensive cost can be manufactured.

Description

Technical field [0001] The present invention belongs to the field of super-large forgings manufacturing, and specific relates to a super large wheelbath forgivement manufacturing process. Background technique [0002] Ultra-large forgings are key components in the fields of nuclear power, thermal power, hydropower, ship, engineering machinery, etc., and ultra-large forgings typically need to use large-sized steel ingots of all kinds of materials. However, there is currently the same problem in the manufacturing process of the traditional oversized size molded steel ingot: (1) Ultra-large mold casting steel ingot production process is complex, usually need to be customized separately; (2) Ultra-large die cast steel ingot during manufacturing If the cooling speed of each part is different, it will prevain segregation, loose, elemental distribution is uneven; (3) Ultra-large die cast steel ingot during manufacturing, low materials, need to remove water, rush, etc. 20% -35% of materi...

AI Technical Summary

Problems solved by technology

However, the current traditional manufacturing process of super-large die-cast steel ingots generally has the following problems: (1) The manufacturing process of super-large die-cast steel ingots is complicated, and usually requires individual customization; (2) The manufacturing process of super-large die-cast steel ingots is difficult Due to the different cooling rates of various parts, problems such as segregation, porosity, and uneven distribution of elements generally occur; (3) The material utilization rate of super-sized die-casting steel ingots is low during the manufacturing process, and it is necessary to remove the nozzles, risers, etc. 20%-35% material

The following problems generally exist in the manufacture of tire forgings using the traditional free forging process: (1) Limited by equipment factors such as the opening size of the hydraulic press, the diameter of the forgings using the free forging process is generally ≤7500mm; (2) The free forging process has many forging fires, The homogenization of the internal structure of the forging is poor; (3) the surface quality of the forging is poor, and more machining allowance needs to be reserved, resulting in low machining efficiency; (4) the free forging process has a long manufacturing cycle and high overall production costs

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