Finish rolling forming technique of numerical control ring rolling machine of internal long neck special-shaped wind power flange

A wind power flange and forming process technology, applied in the direction of metal rolling, can solve the problems of high raw material consumption, reduced forging performance, and low production efficiency, and achieve the effects of ensuring mechanical properties, improving efficiency, and improving production efficiency

Inactive Publication Date: 2011-11-02
XUZHOU JIUDING FORGING TECH
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Problems solved by technology

As shown in the figure above, the traditional manufacturing method of inner high-neck flange forgings generally makes the blank into a rectangular cross-section, and then processes the high-neck part according to the shape shown in the part dra

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  • Finish rolling forming technique of numerical control ring rolling machine of internal long neck special-shaped wind power flange
  • Finish rolling forming technique of numerical control ring rolling machine of internal long neck special-shaped wind power flange
  • Finish rolling forming technique of numerical control ring rolling machine of internal long neck special-shaped wind power flange

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[0024] The present invention will be further described below in conjunction with the drawings.

[0025] Such as figure 1 , figure 2 with image 3 As shown, a precision rolling forming process of an inner high-neck special-shaped wind power flange CNC ring rolling machine includes the following process steps:

[0026] Perform finite element forming analysis to determine the best size of the blank, and at the same time make necessary optimizations on the hole pattern of the driving roller 4 and the core roller 3. For example, the hole pattern of the driving roller 4 contains grooves 2.

[0027] a). Select the continuous casting billet for cutting on the sawing machine.

[0028] b) After blanking, the furnace is heated according to the actual capacity of the heating furnace, and then the billet is made on the hydraulic press to make the billet; the initial forging temperature is controlled to 1180℃, the final forging temperature is 850℃, and the heating and holding temperature range is ...

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Abstract

The invention disclosed a finish rolling forming technique of a numerical control ring rolling machine of an internal long neck special-shaped wind power flange, belonging to the field of wind driven generator apparatuses. The technique comprises the following steps of: selecting a continuously cast bloom to feed materials on a sawing machine; heating a matched furnace according to an actual capacity of a heating furnace; then, blanking on an oil press to obtain blank; returning the furnace for heating and thermally preservation; discharging the furnace, carrying out finish-rolling on the numerical control ring rolling machine so as to form a combined forging blank; cooling the combined forge blank by air; after the cooling is finished, sawing from the middle of the side surface of the combined forging blank, to obtain two internal long neck flange ring member blanks; thermally treating the internal long neck flange ring member blank; carrying out rough-turning and finish-turning on the ring member blank after thermal treatment on a vertical numerical control machine; detecting flaw of the ring member after finish turning by ultrasonic waves; next, detecting mechanical performance indexes, granularity and non-metallic inclusion; and realizing identification package of a product. The technique in the invention increases utilization rate and production efficiency of flange forging material as well as performance of a forge piece.

Description

technical field [0001] The invention relates to a precision rolling forming process of a numerically controlled ring rolling machine for an inner high-neck special-shaped wind power flange, belonging to the field of wind power generator equipment. Background technique [0002] The currently used wind power flanges generally use steel billets as raw materials, and after blanking, forging billets, ring rolling, heat treatment, machining and other processes, they are made into ring forgings that meet the requirements. As shown in the figure above, the traditional manufacturing method of inner high-neck flange forgings generally makes the blank into a rectangular cross-section, and then processes the high-neck part according to the shape shown in the part drawing. Moreover, this method is often single-piece rolling in production. The manufacturing process is not smooth, the production efficiency is low, and the consumption of raw materials is large. The key is to reduce the perf...

Claims

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Application Information

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IPC IPC(8): B21H1/06
Inventor 王峰王浩支天柱何涛马欢欢周巧玲
Owner XUZHOU JIUDING FORGING TECH
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