Nayiloni Powder Electrostatic Spray Coating Njira
Njira yopopera yamagetsi imagwiritsa ntchito mphamvu yoyambitsa mphamvu yamagetsi yamphamvu kwambiri kapena mphamvu yolipirira kukangana kuti ipangitse mphamvu zosiyana pa ufa wa nayiloni ndi chinthu chophimbidwa, motsatana. Chopopera cha ufa chophimbidwa chimakokedwa ndi chinthu chophimbidwa chophimbidwa chotsutsana, ndipo chikasungunuka ndi kulinganizidwa, chophimba cha nayiloni chimapezeka. Ngati kufunika kwa makulidwe a chophimba sikupitirira ma microns 200 ndipo gawo lapansi ndi lopanda chitsulo kapena lopanda pobowola, sipafunikira kutentha kuti mupopere ozizira. Pa zophimba za ufa zomwe zimafunikira makulidwe opitilira ma microns 200 kapena magawo okhala ndi chitsulo chophimbidwa kapena zinthu zopowola, gawo lapansi liyenera kutenthedwa mpaka pafupifupi 250°C musanapopere, komwe kumatchedwa kupopera kotentha.
Kupopera mbewu mankhwalawa mozizira kumafuna tinthu ta ufa wa nayiloni kukhala ndi mainchesi pafupifupi 20-50 microns. Nthawi zina, nkhungu yamadzi imatha kupopera mu ufa kuti iwonjezere mphamvu yake yonyamula katundu ndikuchepetsa zolakwika zomwe zimayambitsidwa ndi kutayika kwa ufa musanaphike. Kupopera mbewu mankhwalawa otentha kumafuna tinthu tating'onoting'ono ta nayiloni tokhala ndi mainchesi mpaka ma microns 100. Tinthu tating'ono ting'onoting'ono titha kupangitsa kuti zokutira zokhuthala, koma tinthu tambirimbiri tomwe titha kulepheretsa ufa kumamatira. Pa kutentha kupopera mbewu mankhwalawa, gawo lapansi kutentha amachepetsa mosalekeza, kupangitsa kukhala kovuta kulamulira makulidwe, koma ❖ kuyanika si kutulutsa ufa imfa chilema.
Njira yopopera pogwiritsa ntchito electrostatic ili ndi njira zambiri zosankhira kukula kwa workpiece, makamaka pa workpiece zokhala ndi makulidwe osiyanasiyana, kuonetsetsa kuti makulidwe ake ndi ofanana. Pamene workpiece siili yokutidwa kwathunthu kapena ili ndi mawonekedwe ovuta omwe sangathe kumizidwa mu bedi losungunuka , njira yopopera pogwiritsa ntchito electrostatic ili ndi ubwino. Tepi yomatira yolimba komanso yosatha imatha kugwiritsidwa ntchito kuteteza kwakanthawi magawo osakutidwa. Kawirikawiri, kupopera pogwiritsa ntchito electrostatic kumatha kukhala ndi kupaka kopyapyala, monga pakati pa ma microns 150 ndi ma microns 250. Kuphatikiza apo, kupaka ndi nayiloni komwe kumapezeka pogwiritsa ntchito electrostatic cold spray kumakhala ndi kutentha kochepa kosungunuka, nthawi zambiri pafupifupi 210-230°C kwa mphindi 5-10, kulimba bwino, komanso kutentha kochepa. Kumamatira ku chitsulo ndikwabwino kuposa njira zina.
moni, muli ndi dip mtundu wa nayiloni ufa, m'malo mwa electrostatic kupopera mbewu mankhwalawa?
Ndimagwirizana ndi malingaliro onse omwe mwapereka mu positi yanu. Iwo ndi okhutiritsadi ndipo adzagwira ntchito. Komabe, zolemba ndi zazifupi kwambiri kwa ongoyamba kumene. Kodi mungawawonjezereko pang'ono kuchokera nthawi ina? Zikomo chifukwa cha positi.