Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
WIND TURBINE MAIN SHAFT HAVING PROTECTIVE LAYER AND PROCESS FOR COATING PROTECTIVE LAYER THEREOF
Document Type and Number:
WIPO Patent Application WO/2019/109263
Kind Code:
A1
Abstract:
A wind turbine main shaft having a protective layer. A Teflon layer (13) is coated on a surface of the wind turbine main shaft. A reinforcement layer is provided at a middle portion of the wind turbine main shaft. The reinforcement layer is made from carbon fibers (9) or a carbon fiber film. In addition, a process for coating a protective layer is also disclosed. The process comprises: removing all grease from a surface of a workpiece to be coated, wherein an organic solvent is used to dissolve the grease, and the organic solvent and the grease are heated to completely volatilize the same; using a sand blasting process to clean the workpiece and to make the surface thereof rough; spraying powder, wherein compressed air is used to blow powder-like Teflon particles out of a collector, such that the powder-like particles are attracted and adhered to the workpiece; heating the workpiece to a temperature higher than a melting temperature of the powder material, such that the powder-like particles are deposited thereon and melted in a spraying process; performing drying and sintering, wherein the workpiece is heated in a heating furnace until an irreversible reaction occurs, and the coating material is melted, and forms a network structure together with a bonding additive; and removing the workpiece from the heating furnace, and naturally cooling the workpiece to room temperature.

Inventors:
LIU, Shengxiang (Xu Jiandong, NO.888 Furong Avenue Huashi Town, Jiangyin Cit, Wuxi Jiangsu 0, 214400, CN)
SHEN, Jiyu (Xu Jiandong, NO.888 Furong Avenue Huashi Town, Jiangyin Cit, Wuxi Jiangsu 0, 214400, CN)
LAN, Ju (Xu Jiandong, NO.888 Furong Avenue Huashi Town, Jiangyin Cit, Wuxi Jiangsu 0, 214400, CN)
QI, Zhenhua (Xu Jiandong, NO.888 Furong Avenue Huashi Town, Jiangyin Cit, Wuxi Jiangsu 0, 214400, CN)
Application Number:
CN2017/114767
Publication Date:
June 13, 2019
Filing Date:
December 06, 2017
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
JIANGYIN ZENKUNG FORGING CO., LTD (XU Jiandong, NO.888 Furong Avenue Huashi Town, Jiangyin Cit, Wuxi Jiangsu 0, 214400, CN)
International Classes:
F16C3/02; B23P15/14
Domestic Patent References:
WO2016057333A12016-04-14
Foreign References:
CN102969863A2013-03-13
CN107989885A2018-05-04
CN101557139A2009-10-14
CN103090300A2013-05-08
US7074010B22006-07-11
US20160099663A12016-04-07
Attorney, Agent or Firm:
JIANGYIN YIHAI INTELLECTUAL PROPERTY FIRM (GENERAL PARTNERSHIP) (Cao Yanling, No. 18 Xinhua 2nd Village Jiangyin Cit, Wuxi Jiangsu 0, 214400, CN)
Download PDF: