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Hollow Forging Process for Main Shaft of Large Wind Turbine Generator
专利权人:
Jiangyin Zenkung Forging Co., Ltd.
发明人:
Qi Zhenhua,Ma Shengyi,Liu Shengxiang,Yan Zhenwei
申请号:
US201715402219
公开号:
US2018057904(A1)
申请日:
2017.01.09
申请国别(地区):
美国
年份:
2018
代理人:
摘要:
A hollow forging process for main shaft of large wind turbine generator, wherein, comprising the following steps as: the first step of cutting off the dead head and the bottom of an ingot; the second step of upsetting and punching a hole; the third step of drawing-out; and the fourth step of local upsetting, drawing-out and shaping-up. In the fourth step, the forged piece is shaped up by local upsetting and drawing-out through a turnplate. The hollow forging process for main shaft created by the invention can save the costs for enterprise to purchase large equipment and makes it possible to forge the main shaft of large wind turbine generator with a free forging oil press with a smaller size.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

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