Zinthu zisanu zofunika kuziganizira posankha PTFE zokutira mandrel

Kwa zaka zambiri,PTFE zokutirazosankha zakula pamsika wa zida zamankhwala, kuwongolera njira zopangira m'njira zosiyanasiyana.Ndipo ndi zida zambiri ndi zosankha zokutira zomwe zilipo masiku ano, kusankha mandrel oyenera opangira zosowa zanu zapadera kumatha kuwoneka ngati kovuta kwambiri.Choncho, pali zinthu zisanu zomwe muyenera kuziganizira posankha mandrel wokutidwa kuti chisankho chanu chikhale chosavuta.
1. Ganizirani chakumbuyo
Choyamba, lingalirani chomwe cholinga chachikulu chakugwiritsa ntchito komaliza ndi zida.Kaya mukupanga makina otumizira otsogola okhala ndi ma lumens angapo kapena kutulutsa pa mandrel opangidwa ndi ma tapered.Kumvetsetsa momwe mapetowo adzagwiritsire ntchito kudzakuthandizani kuzindikira mikhalidwe yofunika kwambiri ya mandrels okutidwa.
2. Lembani mndandanda
Lembani mitundu yonse ndi kuuma kwa ma polima omwe amafunikira kuti akwaniritse zofunikira zogwirira ntchito za proximal ndi distal shaft, monga kukana kwa kink ndi kuwongolera.Ndikofunikiranso kumvetsetsa momwe kutentha kwa ntchito ya reflow process kumakhudzira polima iliyonse.Mwachitsanzo, enaPTFEzokutira zimatha kupirira kutentha kosalekeza kwa 550 ° F ndipo zimatha kupirira kutentha kwa 700 ° F.
3. Yesani zosankha zanu
Tsopano popeza mwatsimikiza kuchuluka kwa kutentha komwe mungagwiritse ntchito, muyenera kuganizira zomwe mungagwiritse ntchito mandrel.Ngakhale pali ndalama zakuthupi zomwe zimayenera kusungidwa poganizira zakuthupi zina, muyenera kuganizira zakuthupi ndi zabwino zomwe mandrel amapereka popanga.Zingakhale zothandiza kuyang'ana ogulitsa omwe angapereke magawo osiyanasiyana opangidwa ndi arbor monga zitsulo zosapanga dzimbiri, Nitinol, ndi mkuwa wopangidwa ndi siliva.Mutha kuyesa chilichonse cha mandrel kuti muwone chomwe chili chabwino kwambiri pakugwiritsa ntchito kwanu komanso bajeti.Njira yabwino yopangira chisankho ichi ndikuyesa zosankha zanu.
4. Dziwani zofunikira zamafuta
Kuzindikira zofunikira za lubricity kumathandizira kuonetsetsa kuti zokutira zimakwaniritsa moyo wautali wa mandrel panthawi yopanga.Mawaya amakoka ndi mawaya omwe amagwiritsidwa ntchito polowera ayenera kudutsa mosasunthika mkati mwa catheter, kotero zokutira zopaka mafuta apamwamba kwambiri monga.Zithunzi za PTFEziyenera kugwiritsidwa ntchito.mitundu ina ya zokutira za PTFE fluoropolymer, monga PTFE Natural, zitha kupereka phindu lantchito.Mwachitsanzo, coefficient of friction ya 0.05 imatheka kuti muchepetse kuchotsedwa kwa catheter panthawi yowotcherera fuse ndi kuthira.
5. Zofunika zokutira zofunika kuziyang'ana
Pomaliza, kaya mukupanga chingwe chokokera kapena cholumikizira, nthawi zonse yang'anani mandrel okutidwa bwino okhala ndi yunifolomu, yolondola, yosasunthika.
Pamene zovuta zikuchulukirachulukira komanso kukula kwazinthu kumachepa, zokutira zokometsera monga za PTFE zimakhala zofunika kwambiri popanga catheter.Kukhalitsa ndikofunikiranso kuti zitsimikizire chitetezo ndi magwiridwe antchito a gawo lililonse lomwe likuphatikizidwa mu zida zomaliza.