摘要
将自蔓延高温合成技术与离心铸造技术结合 ,开发了陶瓷内衬复合铜管技术 ,可在铜管内表面涂敷耐磨性和耐蚀性优良的陶瓷涂层。为提高陶瓷涂层致密度、韧性和结合强度 ,研究了添加剂的影响。结果表明 ,在铝热剂中加入SiO2 和CrO3可提高致密度 ,加入Na2 B4 O7可提高结合强度 ,加入ZrO2 可提高断裂韧性。陶瓷内衬复合铜管应用于管坯结晶器 ,可提高其使用寿命 ,降低成本。
Self propagating high temperature synthesis (SHS) is a new kind of material synthesis technique, has characteristics with respect to low energy consumption, short synthetizing time, high production quantity, high product purity and no environmental pollution. Ceramic lined compound copper pipe can be produced, by combining SHS with centrifugal casting. The inner sufrace of copper pipe coated with ceramics having good wear and corrosion resistance. In order to increase the densification degree, combining strength and toughness of ceramic layer, the effects of additives are studied. The results showed that the densification degree of ceramic layer can be increased by adding SiO 2 and CrO 3 in thermite, combining strength can be in creased by adding Na 2B 4O 7 in thermite, the toughness of ceramic layer can be in creased by adding ZrO 2 in thermite. Ceramic lined compound copper pipe can be used in tube blank crystallizer, which improves service life and the production cost of tube blank is decreased.
出处
《理化检验（物理分册）》
CAS
2003年第2期66-69,共4页
Physical Testing and Chemical Analysis(Part A:Physical Testing)
