Spraying metal-ceramic gradient thermal barrier coating on the work surface is a valid method to prolong the life of blast furnace (BF) tuyere. 在高爐風口表麪制備一層適宜的金屬-陶瓷梯度熱障塗層，是提高風口壽命的一種有傚的方法。
The feasibility of metal-ceramic gradient coating on the work surface of BF tuyere was proved, and the superiority of HVOF tie coating on the work surface of BF tuyere was confirmed. 証明了在風口上噴塗金屬-陶瓷梯度熱障塗層的可行性以及利用HVOF打底層制備金屬-陶瓷熱障層的優(yōu)勢。