Production method of wind tower flange deformed ring forging

Abstract

The invention discloses a production method of a wind tower flange deformed ring forging. The wind tower flange deformed ring forging is made of billet by the steps of blanking, blank forging and ring rolling, heating treatment and finish turning. The step of blank forging and ring rolling comprises the steps of: firstly rolling the billet into a ring by a plain barreled roll, wherein the inner wall of the ring is a smooth circumferential surface; and then heating in a furnace; rolling the ring into a workpiece with an annular concave cavity in the middle of the inner wall by a deformed core roll, wherein the deformed core roll is provided with a core roll boss, the core roll boss is twice wider than the connecting face of a tower cylinder of the wind tower flange deformed ring forging, and the height of the core roll boss is equal to the width of a flange connecting boss of the wind tower flange deformed ring forging; and sawing the workpiece from the middle of the side to separate the workpiece into tow parts symmetrically and equally to obtain tow blanks of the wind tower flange deformed ring forging. The invention is a production method of the wind tower flange deformed ring forging, which can improve product quality and has high production efficiency.

Description

technical field The invention relates to a wind power generator equipment MW-level wind turbine tower body flange, and in particular to a method for manufacturing a special-shaped ring forging of the wind tower flange. Background technique The currently used wind tower flanges generally use billet steel as the raw material for processing, and after blanking, forging billet ring rolling, heat treatment, finishing machining and other steps, ring forgings that meet the requirements are made. As shown in FIG. 2 , the inner wall of the wind tower flange special-shaped ring forging includes a flange connection boss 1 and a tower tube connection surface 2 . The traditional manufacturing method of special-shaped ring forgings for wind tower flanges is generally to forge billet steel rings into rectangular cross-sections, and then process them into wind tower flanges of the required shape according to the drawings. This manufacturing method adopts a single-piece rolling manufacturing...

AI Technical Summary

Problems solved by technology

The traditional manufacturing method of special-shaped ring forgings for wind tower flanges is generally to forge billet steel rings into rectangular cross-sections, and then process them into wind tower flanges of the required shape according to the drawings. This manufacturing method adopts a single-piece rolling manufacturing process during production , the rolling is not smooth, not only affects the product quality, but also reduces the production efficiency

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