In order to ensure the demand for renewable energy growth, the use of large wind turbine blades is particularly important at present. However, the dramatic increase in the dynamic stress caused by the gravity loading of the blade on the blade will greatly increase the market's demand for materials, and at the same time require better quality blades to undertake the work. From February 21st to 23rd at the Composites Exhibition in Las Vegas, Dr. Usama Younes, Chief Expert of Bayer, gave a speech on the development of the Baydur® polyurethane system, which combines the polyurethane resin system with the epoxy resin. The vinyl ester resin system was compared with the performance test. Tests include vacuum infusion experiments and more. The purpose is to demonstrate that the polyurethane material has a 48% increase in fracture resistance compared to the performance of multi-walled carbon nanotubes. He said that in addition to carbon nanotubes, polyurethane composites are also a viable option for increasing the strength of wind turbine blades.
Weld-neck flange is a kind of flange that butt welds the pipe with the neck.
Production Size:1/2"-96"
Pressure range:PN16,PN25,PN40,PN64,PN100,PN250
Production Standard:BS,JIS,GOST,ANSI,DIN,GB
Main Material of parts:
A105,A350-LF2,A182-F5,A182-F11,A182-F304,A182-F304L,A182-F316,A182-F316L,A234-WPB,A420-WPL6,A234-WP12,A234-WP11,A234-WP5,A403-WP304,A430-WP304L,A403-WP316,A403-WP316L
The shape of Weld-neck flange isn`t easy to change,The sealing performance of Weld-neck flange is very good.It is wildly applied. Weld-neck flange is suitable for pressure or temperature fluctuations of the pipeline or high temperature and high pressure and low temperature pipeline,generally used for connecting pipes and valves of above 2.5MPa; Weld-neck flange is also used in the pipeline which transport expensive, flammable and explosive medium.
Weld-Neck Flange Long Welding Neck Flange,Flange Datas,Forged Flange Technical,Welded Neck Flange CANGZHOU HENGJIA PIPELINE CO.,LTD , http://www.czhjpipe.com
At present, the fan blade material on the market cannot withstand the needs of large-scale blade work. Bayer MaterialScience developed Baydur® polyurethane system materials to enhance the weather resistance, tensile fatigue, interlaminar fracture toughness and fatigue crack growth performance of composite materials. It has become an ideal material for vacuum infusion of large-scale parts and has obtained technical funds from the Ministry of Energy. reward. 