火焰噴塗陶瓷是一種在金屬基體表面進行的新型材料表面改性技術。
簡介,用途,性能,技術參數,
簡介
在金屬基體表面進行火焰噴塗陶瓷是一種新型材料表面改性技術，但所噴塗的陶瓷塗層中容易產生塗層的“剝落”和“龜裂”以及孔隙率偏高等缺陷 [4,5]。本試驗以氧-乙炔焰為熱源，對45鋼進行Al2O3陶瓷火焰噴塗，通過制定和改善其噴塗工藝，以解決上述火焰噴塗陶瓷塗層所產生的缺陷的問題。採用火焰噴塗技術對基體金屬表面噴塗Al2O3陶瓷。通常該陶瓷塗層易出現“剝落”、“龜裂”、孔隙率偏高等缺陷，這些缺陷的產生嚴重影響塗層的性能。本文通過制定和改善其噴塗工藝，有效地解決了其產生上述缺陷的問題。
Flame spraying technique was employed to spay Al2O3 ceramic coating on metallic surface. Normally, the defects, such as "peeling off", "cracking", or high porosity, appear easily in the sprayed Al2O3 ceramic coating, and willseriouslyinfluence the properties of the coating. As the process of flame spraying is improved, it will solve effectively the problems of producing the defects on Al2O3 ceramic coating .
Flame spraying technique was employed to spay Al2O3 ceramic coating on metallic surface. Normally, the defects, such as "peeling off", "cracking", or high porosity, appear easily in the sprayed Al2O3 ceramic coating, and willseriouslyinfluence the properties of the coating. As the process of flame spraying is improved, it will solve effectively the problems of producing the defects on Al2O3 ceramic coating .
用途
對在各種惡劣環境下工作的普通材質各類形狀部件表面進行強化處理,處長金屬材料壽命。
性能
1、耐磨、防腐、耐高溫；
2、外觀緻密，粗糙度低、無裂紋、有鏡面效果。
2、外觀緻密，粗糙度低、無裂紋、有鏡面效果。
技術參數
孔隙率：（%）≤1.087
拉伸強度：（/MPa）≥42.8
維氏硬度：（/HV0.2）≥70
拉伸強度：（/MPa）≥42.8
維氏硬度：（/HV0.2）≥70
