Wind tower flange ring forging part for wind power equipment and manufacture method thereof

Abstract

The invention discloses a wind tower flange ring forging part for wind power equipment which has stable and reliable quality and can meet the use requirement under bad environments. The wind tower flange ring forging part comprises chemical elements with following weight: C is 0.14-0.17%, Si is 0.15-0.35%, Mn is 1.35-0.80%, P is less than and equal to 0.020%, S is less than and equal to 0.015%, Cr is less than and equal to 0.10%, Ti is less than and equal to 0.15%, Cu is less than and equal to 0.20%, V is 0.05-0.10%, (O) is less than and equal to 20ppm, (H) is less than and equal to 2.0ppm, and Fe in balance amount. A manufacture method of the wind tower flange ring forging part comprises the steps of: taking a billet steel which is made by the components as raw material; discharging; forging, sheet stamping and ring rolling; heat treating; and metal working to obtain the wind tower flange ring forging part. The method is characterized in that a work piece which is obtained by forging, sheet stamping and ring rolling is rough machined and is heat treated, wherein the step of heat treating comprises heat treating and normalizing. The product can meet the requirement of large-scale wind power equipment.

Description

technical field [0001] The invention relates to a body flange of a wind power tower of a MW class wind power unit for wind power generator equipment, and in particular to a forging of the wind tower flange ring and a preparation method thereof. Background technique [0002] Wind energy is a clean and renewable resource with huge reserves, which has been paid more and more attention by people. Wind power is just using this resource, and it is rising as a new industry. Used for wind turbine equipment MW-level wind turbine tower body flange is the load-bearing part of wind power equipment, which needs to meet the specific use requirements such as load bearing under strong wind energy and +40~-40℃ ambient temperature; requirements Under relatively bad weather conditions, quality problems cannot occur within 20 years. The currently used wind tower flanges generally use the billet steel made of Q345E material in the standard HDJS-B2008-002 as the starting raw material for proces...

AI Technical Summary

Problems solved by technology

The disadvantages of traditional wind tower flange ring forgings are: due to the large range of material composition and physical and chemical indicators, the forging and heat treatment process is simple and rough, resulting in unstable product quality, and it is still difficult to meet strong wind energy, +40~-40 Under the ambient temperature of ℃, specific requirements such as safe and stable load bearing

Images