The Airbus A380 super-large aircraft, which can carry 555 passengers, is being tested, and its first aircraft will be delivered to Singapore for commercial operation by the end of this year. To reduce the weight of the aircraft, 22% of the structural weight of the new A380 is made of advanced carbon fiber reinforced plastic (CFRP). In the assembly phase of the aircraft, it is necessary to drill the overlapping holes of the CFRP and the aluminum and titanium members. The upper deck's slab (made of CFRP) must be connected to the aluminum member supporting it. If the general drill is used, only 90 can be drilled. Holes. To this end, Swiss Extramet Carbide Corporation, Klenk Tools of Germany and CemeCon Coatings have jointly developed a drill bit specifically for processing CFRP coated with CCCDia Fiberspeed diamond coating. In the first trial drill, the life of the drill bit reached 500 holes, the wear of the peripheral part of the drill bit was significantly reduced, and the surface quality and precision of the hole (H8) was improved, and good economic benefits were obtained.
When this diamond coated drill bit was used for the processing of the φ10mm rivet hole of the A400M military transporter, the same effect was obtained. The A400M's wing skin and support spokes are made of CFRP. The skin is riveted to the spokes. The rivet holes are drilled on both materials, requiring no delamination during drilling and achieving H8 accuracy. Only a multi-layer diamond coating can withstand the intense abrasive wear of the CFRP on the tool. In addition, the chemical stability of the diamond coating also avoids bonding of the workpiece material.
 Push Button Hand Shower
The utility model discloses a Kitchen Shower head that is convenient to switch the water outlet mode, has a compact structure, and is easy to use, and a kitchen faucet using the kitchen shower head. , The shower head is provided with a water separator, and the water separator is provided with an annular flow channel and an inner flow channel respectively connected to the spray water outlet body and the V-shaped water outlet body, and the lower end of the outer wall of the water separator is upwardly circular A plurality of water inlet holes connected to the annular flow channel are provided, and a first sealing ring is provided on the lower side of the water inlet hole; the water outlet end of the shower body is connected with a converter, and the converter is provided with a communicating In the water diversion cavity at the water outlet end of the shower body, the lower end of the water diversion device is installed in the water diversion cavity and can move up and down, and the upper end of the inner wall of the water diversion cavity is provided with a convex ring matching the first sealing ring, so The bottom surface of the water diversion cavity is provided with a sealing gasket that can seal the inner flow channel.
Waterfall Shower Head,Overhead Shower Head,Push Button Hand Shower,Brushed Nickel Sink Faucet
Yuyao Zelin Sanitary Ware Co., Ltd , https://www.kitchen-sinkfaucet.com