Polyurethane Powder Coating
Mau Oyamba:
Zovala zaufa zopangidwa ndi utomoni wa hydroxyl polyester, wokhala ndi mankhwala abwino kwambiri, komanso kukongoletsa kwabwino kwambiri, kusanja, kukana mankhwala, kukana nyengo komanso kukana mafuta mwamphamvu. Ndikoyenera kupaka zitsulo zowoneka ngati njinga, galimoto, njinga yamoto, makina opangira mafuta ndi makina aulimi omwe ali ndi zofunika kwambiri za kukana mankhwala ndi kukana mafuta.
Mndandanda wazinthu:
kupereka zowunikira (80% pamwambapa), zowunikira pang'ono (50-80%), magalasi osawoneka bwino (20-50%) komanso osawala (20% pansipa) kapena pazofunikira
Katundu Wathupi:
Kukoka kwapadera (g/cm3, 25 ℃): 1.4-1.7
Kugawa kwa tinthu ting'onoting'ono: 100% zosakwana 100 micron (Itha kusinthidwa malinga ndi zofunikira za ❖ kuyanika)
Zomangamanga:
Prepreatment: machiritso osiyanasiyana a magawo osiyanasiyana (mankhwala a phosphating, kupopera mankhwala phokoso, chithandizo chokodzera)
Njira yochiritsira: Kupanga kwamfuti kwamanja kapena kokhazikika
Kuchiritsa zinthu: 200 ℃ (workpiece kutentha), mphindi 10
Kuchita kwa zokutira:
| Chinthu choyesera | Kuyendera muyezo kapena njira | Zizindikiro zoyesa |
| kukana mphamvu | Mtengo wa ISO 6272 | 50kg.cm |
| test test | ISO 1520 | 8 mm |
| zomatira mphamvu (njira ya mzere lattice) | ISO 2409 | 0 mlingo |
| kupinda | ISO 1519 | 2 mm |
| kulimba kwa pensulo | Chithunzi cha ASTM D3363 | 1H-2H |
| mayeso opopera mchere | Mtengo wa ISO 7253 | > 500 maola |
| kuyesa kotentha ndi chinyezi | ISO 6270 | > 1000 maola |
| kukana kutentha | 150 ℃/24 maola (woyera) | kwambiri kuwala posungira, kusiyana mtundu≤0.3-0.4 |
Ndemanga:
1.Mayeso omwe ali pamwambawa adagwiritsa ntchito mbale zachitsulo zoziziritsa kuzizira za 0.8mm zokhala ndi makulidwe a 50-70 microns.
2.Chiwonetsero cha ntchito cha zokutira pamwambapa chikhoza kusintha ndi kusintha kwa mtundu ndi gloss.
Kufalikira kwapakati:
9-11 sq.m./kg; filimu makulidwe 60 microns (owerengeka ndi 100% ❖ kuyanika magwiritsidwe ntchito mlingo)
Kupakira ndi mayendedwe:
makatoni ali ndi matumba a polyethylene, kulemera kwa ukonde ndi 20kg; Zida zosakhala zoopsa zimatha kunyamulidwa m'njira zosiyanasiyana, koma kupeŵa kuwala kwa dzuwa, chinyezi ndi kutentha, komanso kupewa kukhudzana ndi mankhwala.
Zofunika Posungira:
Ukhondo, wowuma, mpweya wokwanira, kutali ndi kuwala, kutentha kwa chipinda pansi pa 30 ℃, ndipo iyenera kutetezedwa ku gwero lamoto, kutali ndi kutentha. Pewani kusanjikiza magawo opitilira 4.
Ndemanga:
Ufa wonse umakwiyitsa dongosolo la kupuma, choncho pewani kutulutsa ufa ndi nthunzi kuti musachiritse. Yesetsani kupewa kukhudzana mwachindunji pakati pa khungu ndi kupaka ufa. Sambani khungu ndi madzi ndi sopo pamene kukhudzana kuli kofunikira. Ngati muyang'ana m'maso, sambani khungu nthawi yomweyo ndi madzi aukhondo ndipo pitani kuchipatala mwamsanga. Fumbi wosanjikiza ndi ufa tinthu mafunsidwe ayenera kupewa padziko ndi akufa ngodya. Tizilombo tating'onoting'ono timene timatulutsa timayaka ndi kuyambitsa kuphulika kwa magetsi osasunthika. Zida zonse ziyenera kukhala pansi, ndipo ogwira ntchito yomanga ayenera kuvala nsapato zoletsa static kuti pansi kuti ateteze magetsi osasunthika.
