<input id="68khf"></input>
<li id="68khf"><s id="68khf"><strong id="68khf"></strong></s></li>
<li id="68khf"></li>
  • <li id="68khf"><ins id="68khf"></ins></li>
    推广 热搜:   ipc  电镀厂  彩涂  电镀  防腐  镀镍  化学镀  研讨会  封闭 

    190304-镍钛合金血管支架的电化学抛光

       作者:严凤洁,李志永,等    单位:山东理工大学机械工程学院    日期:2019-02-26     浏览:290    评论:0    
    提示:中文核心期刊,中国科技核心期刊!DOI: 10.19289/j.1004-227x.2019.03.004镍钛合金血管支架的电化学抛光严凤洁,李志永*,颜红娟
     

    中文核心期刊,中国科技核心期刊!    



    DOI: 10.19289/j.1004-227x.2019.03.004

    镍钛合金血管支架的电化学抛光

    严凤洁,李志永*,颜红娟,黄朝霞,赵鑫(山东理工大学机械工程学院,山东 淄博 255049)

    摘要:以激光加工后的镍钛合金血管支架为试验材料,分别采用不同配比的甲醇−高氯酸和冰醋酸−高氯酸,在温度15 °C、电流密度0.7 A/cm2、极间距15 mm 的条件下进行电化学抛光20 s(甲醇−高氯酸)或90 s(冰醋酸−高氯酸)。结果表明:冰醋酸−高氯酸更适用于镍钛合金血管支架的电化学抛光。当冰醋酸与高氯酸的体积比为18∶1 时,抛光后的血管支架表面无凸起、热影响区和重铸层,表面粗糙度为0.48 μm。

    关键词:镍钛合金;血管支架;电化学抛光;高氯酸;甲醇;冰醋酸;表面粗糙度

    中图分类号:TG175.3; TQ153.5 

    文献标志码:A 

    文章编号:1004 – 227X (2019) 03 – 0109 – 05

    Electrochemical polishing of nickel–titanium alloy intravascular stent // YAN Feng-jie, LI Zhi-yong*, YAN Hong-juan, HUANG Zhao-xia, ZHAO Xin

    Abstract: Electrochemical polishing of laser-processed nitinol (Ni–Ti alloy) intravascular stent was conducted in methanol–perchloric acid and glacial acetic acid–perchloric acid respectively with different ratios at temperature 15 °C,current density 0.7 A/dm2, and anode–cathode spacing 15 mm for 20 s (in methanol–perchloric acid) or 90 s (in glacial acetic acid–perchloric acid). The results showed that glacial acetic acid–perchloric acid is more suitable for electrochemical polishing of nitinol intravascular stent. The surface roughness of intravascular stent was 0.48 μm after electrochemical polishing with the mixture of glacial acetic acid and perchloric acid at a volume ratio of 18:1, and the bumps, heat-affected zone, and recast layer previously existing at the surface were removed completely.

    Keywords: nickel–titanium alloy; intravascular stent; electrochemical polishing; perchloric acid; methanol; glacial acetic acid; surface roughness

    First-author’s address: School of Mechanical Engineering, Shandong University of Technology, Zibo 255049, China

    PDF全文下载,请点击“此处”

     
    打赏
     
    更多>同类镀涂课堂
    0相关评论

    推荐图文
    推荐镀涂课堂
    点击排行
     
    安徽快三1000期
    <input id="68khf"></input>
    <li id="68khf"><s id="68khf"><strong id="68khf"></strong></s></li>
    <li id="68khf"></li>
  • <li id="68khf"><ins id="68khf"></ins></li>
    <input id="68khf"></input>
    <li id="68khf"><s id="68khf"><strong id="68khf"></strong></s></li>
    <li id="68khf"></li>
  • <li id="68khf"><ins id="68khf"></ins></li>