【摘要】：目的研究一種鈦合金化學轉(zhuǎn)化工藝,增強鈦合金表面防護能力及其與涂層的結(jié)合能力。方法通過單因素實驗確定TC1鈦合金氟化物-磷酸鹽轉(zhuǎn)化工藝,采用SEM,EDS,XRD分析膜層的微觀形貌及成分,同時測試轉(zhuǎn)化膜的有關(guān)性能。結(jié)果在Na3PO440 g/L,Na F 15 g/L,酸度調(diào)節(jié)劑A 25 m L/L,p H控制在4.4~4.6之間,溫度30℃條件下,可在TC1鈦合金表面獲得均勻一致的灰色轉(zhuǎn)化膜。轉(zhuǎn)化膜由許多細小的球狀晶粒組成,主要相成分為Na3Ti OF5及Na2Ti F6。轉(zhuǎn)化膜的摩擦系數(shù)僅為0.3~0.5,明顯低于TC1基體。轉(zhuǎn)化膜與TB06-9底漆的干性附著力為0級,浸泡48 h后的濕態(tài)附著力仍可達1級,遠遠好于TC1基體。結(jié)論氟化物-磷酸鹽轉(zhuǎn)化膜可以降低TC1鈦合金的摩擦系數(shù),提高其與有機涂層的附著力。
[Abstract]:Aim to study a chemical transformation process for titanium alloy to enhance its surface protection and its binding ability with coating. Methods the TC1 titanium alloy fluoride-phosphate conversion process was determined by single factor experiment. The microstructure and composition of the film were analyzed by SEM,EDS,XRD, and the properties of the conversion film were tested at the same time. Results under the condition of Na3PO440 g / L Na F 15 g / L, the acidity regulator A 25 mL / L p H was controlled in the range of 4 4 / 4 6 and the temperature was 30 鈩，

本文編號：2258191