Nayiloni Powder Electrostatic Spray Coating Njira

Njira yopopera ya electrostatic imagwiritsa ntchito mphamvu yamagetsi yamagetsi amphamvu kwambiri kapena kuthamangitsidwa kwa friction kuti ipangitse milandu yosiyana pamagetsi. unga wa nayiloni ndi chinthu chokutidwa, motero. Chophimba cha ufa chomwe chimayikidwa chimakopeka ndi chinthu chophimbidwa chosiyana, ndipo chitatha kusungunuka ndi kusanja, zokutira nayiloni wapezedwa. Ngati ❖ kuyanika makulidwe chofunika si upambana 200 microns ndi gawo lapansi ndi sanali kuponyera chitsulo kapena porous, Kutentha si chofunika kupopera mbewu mankhwalawa ozizira. Pa zokutira za ufa zokhala ndi makulidwe opitilira ma microns 200 kapena magawo okhala ndi chitsulo chonyezimira kapena porous, gawo lapansi liyenera kutenthedwa mpaka 250 ° C musanapope, komwe kumatchedwa kupopera mbewu mankhwalawa otentha.

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.

The electrostatic kupopera ndondomeko ali osiyanasiyana options posankha makulidwe workpiece, makamaka workpieces ndi makulidwe osiyanasiyana, kuonetsetsa makulidwe ofanana. Pamene workpiece si yokutidwa kwathunthu kapena ali ndi mawonekedwe ovuta kuti sangathe kumizidwa mu a fluidized bed, njira yopopera mankhwala ya electrostatic ili ndi ubwino. Tepi yomatira yotentha kwambiri, yosamva kuvala ingagwiritsidwe ntchito kuteteza kwakanthawi mbali zosatsekedwa. Nthawi zambiri, kupopera mbewu mankhwalawa kumatha kukhala ndi zokutira zocheperako, monga pakati pa 150 microns ndi 250 microns. Kuonjezera apo, ❖ kuyanika nayiloni opezedwa ndi electrostatic ozizira kupopera mbewu mankhwalawa ali ndi kutentha otsika kusungunuka, amangozungulira 210-230 ° C kwa mphindi 5-10, kulimba bwino, ndi otsika matenthedwe kuwonongeka. Kumamatira kwachitsulo ndikwabwino kuposa njira zina.