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    • 1. 发明授权
    • Blast-furnace tuyere
    • 高炉风口
    • US4189130A
    • 1980-02-19
    • US952930
    • 1978-10-19
    • Hideto WatanabeShigeo ShojiAkimune SatoTakashi Oka
    • Hideto WatanabeShigeo ShojiAkimune SatoTakashi Oka
    • C21B7/16C23C4/02C23C4/10
    • C23C4/02C21B7/16C23C4/11Y10S428/926Y10T428/1291
    • A blast-furnace tuyere having excellent thermal shock resistance and high durability consists of a tuyere substrate composed of copper or copper alloy, a self-fluxing alloy metallized layer sprayed on the substrate, a cermet coating sprayed on the alloy metallized layer, and a ceramic coating sprayed on the cermet coating. The cermet coating is made from a mixture of an alloy material consisting essentially of 5 to 60 wt% of Co, 5 to 50 wt% of Ni, 5 to 25 wt% of Cr, 5 to 40 wt% of Mo, 5 to 40 wt% of W, 3 to 40 wt% of Si and inevitable impurities, and a ceramic eutectic material consisting essentially of 95 to 65 wt% of Al.sub.2 O.sub.3, 5 to 30 wt% of ZrO.sub.2, 2 to 20 wt% of TiO.sub.2, 3 to 30 wt% of SiO.sub.2 and inevitable impurities. The ceramic coating is made from the same ceramic material as used in the formation of the cermet coating.
    • 具有优异的耐热冲击性和高耐久性的高炉风口包括由铜或铜合金构成的风口基板,喷涂在基板上的自熔合金金属化层,喷涂在合金金属化层上的金属陶瓷涂层和陶瓷 喷涂在金属陶瓷涂层上。 金属陶瓷涂层由基本上由Co组成的5〜60重量%的Co,5〜50重量%的Ni,5〜25重量%的Cr,5〜40重量%的Mo,5〜40 W为3〜40重量%,不可避免的杂质为3〜40重量%,Al 2 O 3为95〜65重量%,ZrO 5〜30重量%,TiO 2为2〜20重量%,TiO 2为3〜 30重量%的SiO 2和不可避免的杂质。 陶瓷涂层由与形成金属陶瓷涂层相同的陶瓷材料制成。