$ÐLùî#Studyonelectrochemicalpolishingof316LstainlesssteelstentJI Shi-wei, H UAN G Nan* , WAN Guo-j iang, WAN G Kai( Key Laboratory of Advanced Technology of Materials, Ministry Education,Southwest Jiaotong University, Chengdu 610031, China)ABSTRACT This research focuses on DC-electrochemical polishing of 316L stainless steel stent materials. Functions ofthe components in electrochemical polishing solutions were studied. T he effect of operating conditions on polishing qualitywas investigated. High smooth surface can be obtained quickly.KEYWORDS 316L stainless steel; Stent; Electrochemical polishing316LÑÓ5¦OÈÄÐ ;ý\ùî季士委,黄 楠* ,万国江,王 凯( 2YvÐ5É/â×ÄLi,¹+îû 610031)[K 1] ¨°@ÈÄÐ ;/,ùî316LÑÓ5¦OÈÄÐ ;AÏòîs¥T¨# THq ;É¥Y bYVªÄ,¨L¤¥ý\ ? y¤;Ü¥ ;Vë b[1oM] 316LÑ;¦O;ÈÄÐ ;[Ïms Ë|] TH142 [ÓDSM] A [ÓcI|] 1672-8475(2006)03-0217-04[Á[ "]SE1 SÐÁÏ-ÖT[ "( 30318006) ;¹+8S=T[ "( 05HH0023) b[Teº]1V¾( 1982- ) , 3,~?û ¦,«V bE- mail: Zdjsw @163. com[YßT]Û, 2YvÐ5É/â×ÄLi,610031 bE-mail: nhuang@ 263. net[là ° ù] 2005-12-15 [©í ° ù] 2006-02-270 ý -,3îhMXÜ^¯} ¦ Ë3 ¥ô'¥ðyB[ 1] bÛ"º ÆÍ/¥?Z,Ó5 =Á¦O¥ùÅEs ¦ô " b Ï316LÑT¹Ó5¦O¥¨Xܵ É åN bÁ¦O¥ÁÓX$£L^¦O± ƪYh ¦ B¯¥×1yÍ bùîsVü,Y¦OÐÓAM ¸¥yÍ , ö1y͹VëY¡ bVëY¡ v,] ÓAÏ¥ë v, `Ó¥ V ? v[ 2] b®¿Ó5¦O²¯ ajl, ¨; Mé©ZTîYFýª, VëÚ¨¦ý ;X V ?[ 3] bÈÄÐ ;[ 1&ªÄ$ª5 In¨¿¦O¥VëÚ[ 4] b'Ó¨°@ÈÄÐ ;¥ZE,316LÑÓ5¦OÉVëÚý\ùî bìBÕ¨¿D¨Ñ± Æ ¥L¨ aÚr¥VëÚý\, ^í Â316LÅ ¦ýÓ5¦O¥VëÈÄÐ ; bm1 LÂUim1 LZE1. 1L Âm1îU,¾L®ȳ¢ aF £Â aÑ9 a| (Ñ) aó a°@È÷# ÏÄLFî bÈ÷¥ ¤$ ;k"( ) bó )¿Aë ð/Z bȳARþ , ?#217#ÏSº Æ^ÐÍÐ2006 M»3 »3 ù Chin J Interv Imaging Ther, 2006, Vol 3, No 3öÀ" Ö' V,"µù¿ ¥¨ æd b W [3~ 5 cm¹D b1. 2ý\@ñ ÈÑÄÐ"² ¹ b! ¹ Ä Ã ¹b! ¹ÈÄÐ ; ¹ b! ¹Ï ¹ b! ¹Ä ¹ b! ¹Ä2 i b1. 2. 1k"Å! ¨È½L MéE|316LÑÅî°å¹12 mm¥Ë, 100#Y é¼u ª, GQ 280# a400# a600# a800#¥£ é¼ Y¡Ra 0. 16~ 0. 08 Lm b¨; YK316LÑõ5, ªÖÏ ,Ñ2o b!,Ü M ",'¤L¨Ó5¦O b1. 2. 2ÄÐ"² ¥ZÖ ) 20 g/ L_ Ä ) 15 g/ LÖ ) 20 g/ LÄÄ4(OP-10) 10 ml/LÑ ÈÑHW 10 min1. 2. 3 Ä Ã10%;Ö 10 min1. 2. 4ÏA5%Ö _ ) ·A 2~ 3 min1. 2. 5ÄA×ðÖK 18 g/ L_ Ä ) 3 g/LpH´ 6. 5~ 7. 5HW 5~ 10 min1. 3_ZE1. 3. 1A±ä4³ ;ª A±ä/4³,Vüíà aíM aíZ_, Ü; b1. 3. 2 0ªK £SZahner³IM6ÈÄÐýT_É,¨îÈÊE©ÈÄÐ ;ª¥Vë(E) Hanks ·AÏ¥ Ä wL,]H© ;Ñ(M)¥ Ä wLÉ1 b1. 4 ;A ¥Z a THq#ÿiY[1. 4. 1 ;A ¥Z# THqÖ(85%) 650 ml/L;Ö(98%) 250 ml/LØ Äð 80 g/ L@F4 10 g/ LÑ 70~ 80eÈâ 18 VHW 2 min| ë 4B1| Ñ1. 4. 2ÿiY[ æ ¥Â ;AVñÏÿiòîs¥F ƨ½,¥î ·A¥ Ø Äð5F ÆÖÏ,ó ( ªF;Ö, Ï ª F@F4 b çSBç¥Lª, ;Aö>r,s÷ ÷Ð b2 ²TÐ)2. 1ÈÄÐ ;AÏòîs¥T¨#Y2. 1. 1Ö Ö^ ;A¥ö1îs, ;VñÏ,; ? ·³T¨,» ? ÑVëîÖ÷ ¹ ,E¸ÑVë?3VªK[ 5] bÖc Ê®,;A1×l,*l, Ö0 ÛÎF y,Á ·³F y, æ¿r Ü ;rT;ÖcVÚ,5î'VÚ, O ;¤ bL²TVü,Öc 650 ml/ LH, ;rTrKz b²TnV1 bV1 Öc ;É¥YÖ( ml/ L) ;Vë 560k"Vë ܵ,;µ590k"Vë ÜBî,;µ620k"Vë Ü,;Bî650k"Vë Ü,;680k"Vë Ü,;2. 1. 2;Ö ;Ö^ ;AFî¥Bs b ;ý\ÏÀµÿP¨;Ö¥ f ,ðy^ÿ¨;ÖH,¥ ·³v¥;Ö÷Ö8|E¸ ;ÉB¥É[ 5] b;Öµù¿4Ú ;A¥Èq,4Ús Û ? ï È@rq bF Æa¥;Öµù¿Å ÖVë Ü,4ÚVë;,;ÖcV®,Å Ö4[ Ü;;ÖcVÚ,ö®Vë;±,ê È;A¥P¨p bL²TVü,;Öc¹250 ml/ LH,8rTKD b²TnV2 bV2 ;Öc ;É¥Y;Ö( ml/ L) ;Vë 190k"Vë ܵ,;µ210k"Vë ÜBî,; µ230k"Vë Ü,;Bî250k" Ü,;270k" Ü,;2. 1. 3 Ø Äð CrO3^ÿ¨ Sȳ ;#218#ÏSº Æ^ÐÍÐ2006 M»3 »3 ù Chin J Interv Imaging T her, 2006, Vol 3, No 34¥,ÈÈ^F ðîsÏP¨,  ;Ö aÖÏFBtCrO3 ¥î ; ·A bȳAÏF ÆCrO3[ª V[¤z¥ ;rT bÄÕcCrO3¥È³A,1¤z¥ ;²T,ûA¶»ûBç¥Cr2 O7 2+。