316L不锈钢冠脉支架光亮热处理的研究-中国烟草学报.PDF

316L 77 316L A Study of Bright H eat T reatment for 316L Stainless Steel Coronary Stent 1, 2 1, 2 1 1 , , , ( 1 , 130033; 2 , 1000 9) 1, 2 1, 2 1 1 WANG Jia-ling , CHEN Zhuo , LI Yu-tian , XIE J-i jiang ( 1 Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China; 2 Graduate School of Chinese Academy of Sciences, Beijing 1000 9, China) : 316L , ; , 3@ 10- 3 ~ 5 @ 10- 3 Pa; 10mL/ min; 1020 ~ 10 0e ; 150V; 15A, 30s; , , : 316L ; ; : TH 122 : A : 1001- 381( 2009) 10-0077-0 Abstract: For carrying out the bright heat treatment of the 316L stainless steel coronary stent, a set of high vacuum heat treatment facilities w as established. Optimized high vacauum heat treatment process - 3 - 3 and determined the processing parameters that are dynamic vacuum 3 @ 10 -5@ 10 Pa, argon shield, velocity of flow 10 mL/ min, heat treatment temperature 1020- 10 0 e , heating voltage 150V, heating current 15A, holding time 30s. Discuss the influences contribution to coronary structure property af- fected by heating temperature and holding time. In the presence of subsidiary gas quick cooling stain- less and metallic netw ork, stainless steel avoided getting into sensitization and had been brighten heat treatment. Key words: 316L stainless steel; coronary stent; bright heat treatment , ,