Zophimba za UV zogwira ntchito bwino kwambiri zakhala zikugwiritsidwa ntchito popanga pansi, mipando, ndi makabati kwa zaka zambiri. Kwa nthawi yayitali, zophimba za UV zokhazikika komanso zosungunulira 100% zakhala ukadaulo wodziwika bwino pamsika. M'zaka zaposachedwa, ukadaulo wophimba wa UV wopangidwa ndi madzi wakula. Ma resin opangidwa ndi madzi opangidwa ndi UV atsimikizira kukhala chida chothandiza kwa opanga pazifukwa zosiyanasiyana, kuphatikizapo kupititsa banga la KCMA, kuyesa kukana mankhwala, komanso kuchepetsa ma VOC. Kuti ukadaulo uwu upitirire kukula pamsika uno, zinthu zingapo zomwe zadziwika kuti ndi madera ofunikira komwe kusintha kuyenera kupangidwa. Izi zitenga ma resin opangidwa ndi madzi opangidwa ndi UV kupitirira kungokhala ndi "zofunikira" zomwe ma resin ambiri ali nazo. Ayamba kuwonjezera zinthu zamtengo wapatali ku zophimbazo, kubweretsa phindu pa malo aliwonse motsatira unyolo wamtengo wapatali kuyambira pa chopangira utoto mpaka chogwiritsira ntchito fakitale mpaka chokhazikitsa, ndipo pamapeto pake, kwa mwiniwake.
Opanga, makamaka masiku ano, amafuna chophimba chomwe chingachite zambiri osati kungotsatira zomwe zanenedwa. Palinso zinthu zina zomwe zimapereka ubwino popanga, kulongedza, ndi kukhazikitsa. Chinthu chimodzi chomwe chikufunidwa ndikusintha magwiridwe antchito a zomera. Pa chophimba chochokera m'madzi izi zikutanthauza kutulutsa madzi mwachangu komanso kukana kutsekeka mwachangu. Chinthu china chomwe chikufunidwa ndikuwongolera kukhazikika kwa utomoni kuti ugwire/ugwiritsenso ntchito chophimbacho, komanso kuyang'anira zinthu zawo. Kwa wogwiritsa ntchito komanso wokhazikitsa, zinthu zomwe zimafunidwa ndi kukana bwino kuwotcha komanso kusakhala ndi chizindikiro chachitsulo panthawi yoyika.
Nkhaniyi ikambirana za zatsopano za ma polyurethanes opangidwa ndi madzi omwe amachiritsidwa ndi UV omwe amapereka kukhazikika kwa utoto wa 50 °C bwino kwambiri mu utoto wowonekera bwino, komanso utoto wopaka utoto. Ikufotokozanso momwe ma resin awa amagwirira ntchito zomwe wogwiritsa ntchito amafunikira pakuwonjezera liwiro la mzere kudzera mu kutulutsa madzi mwachangu, kukana bwino kwa ma block, komanso kukana kwa zosungunulira kuchokera pamzere, zomwe zimathandizira liwiro la ntchito zoyika ndi kulongedza. Izi zithandizanso kuwonongeka kwakunja kwa mzere komwe kumachitika nthawi zina. Nkhaniyi ikufotokozanso za kusintha komwe kukuwonetsedwa mu kukana kwa utoto ndi mankhwala komwe ndikofunikira kwa okhazikitsa ndi eni ake.
Chiyambi
Maonekedwe a makampani opanga zophimba akusintha nthawi zonse. "Zofunika kukhala nazo" zongopereka zomwe zafotokozedwa pamtengo wabwino pa mil imodzi yogwiritsidwa ntchito sizokwanira. Maonekedwe a zophimba zomwe zagwiritsidwa ntchito m'mafakitale ku makabati, malo olumikizira, pansi, ndi mipando akusintha mwachangu. Opanga omwe amapereka zophimba ku mafakitale akupemphedwa kuti apange zophimba kukhala zotetezeka kuti antchito azipaka, kuchotsa zinthu zomwe zimadetsa nkhawa kwambiri, kusintha ma VOC ndi madzi, komanso kugwiritsa ntchito kaboni wochepa wamafuta ndi kaboni wambiri wa bio. Zoona zake n'zakuti nthawi yonseyi, kasitomala aliyense akupempha zophimba kuti achite zambiri osati kungokwaniritsa zomwe zafotokozedwazo.
Poona mwayi woti fakitaleyi ipindule kwambiri, gulu lathu linayamba kufufuza pa fakitale mavuto omwe anthuwa ankakumana nawo. Pambuyo pa kuyankhulana kwambiri tinayamba kumva mitu yofanana:
- Kulola zopinga kukulepheretsa zolinga zanga zokulitsa;
- Ndalama zikukwera ndipo bajeti yathu ya ndalama zikuchepa;
- Mitengo ya mphamvu ndi antchito ikukwera;
- Kutayika kwa antchito odziwa zambiri;
- Zolinga zathu za SG&A za kampani, komanso za kasitomala wanga, ziyenera kukwaniritsidwa; ndipo
- Mpikisano wakunja.
Mitu imeneyi inapangitsa kuti pakhale mawu ofunika omwe anayamba kugwirizana ndi ogwiritsa ntchito ma polyurethane opangidwa ndi madzi ochiritsika ndi UV, makamaka pamsika wa zolumikizira ndi makabati monga: "opanga zolumikizira ndi makabati akufuna kusintha magwiridwe antchito a fakitale" ndi "opanga akufuna kuthekera kokulitsa kupanga pamizere yochepa yopanga popanda kuwonongeka kochepa chifukwa cha zokutira zomwe zimakhala ndi mphamvu zotulutsa madzi pang'onopang'ono."
Gome 1 likuwonetsa momwe, kwa wopanga zinthu zopangira zokutira, kusintha kwa zinthu zina zokutira ndi mawonekedwe ake enieni kumathandizira kuti wogwiritsa ntchito azitha kuchita bwino.
GOME 1 | Makhalidwe ndi maubwino.
Mwa kupanga ma PUD ochiritsika ndi UV okhala ndi zinthu zina monga momwe zalembedwera mu Table 1, opanga omwe amagwiritsa ntchito kumapeto azitha kuthana ndi zosowa zawo pakukweza magwiridwe antchito a zomera. Izi zidzawathandiza kukhala opikisana kwambiri, komanso mwina kuwalola kukulitsa kupanga komwe kulipo.
Zotsatira Zoyesera ndi Kukambirana
Mbiri ya Kufalikira kwa Polyurethane Yochiritsidwa ndi UV
Mu zaka za m'ma 1990, kugwiritsa ntchito kwa malonda kwa anionic polyurethane dispersions yokhala ndi magulu a acrylate olumikizidwa ku polima kunayamba kugwiritsidwa ntchito m'mafakitale.1 Ntchito zambirizi zinali mu ma paketi, inki, ndi zokutira zamatabwa. Chithunzi 1 chikuwonetsa kapangidwe kake ka PUD yochiritsika ndi UV, kusonyeza momwe zipangizo zopangira zokutirazi zimapangidwira.
CHITHUNZI 1 | Kufalikira kwa polyurethane kogwira ntchito kwa acrylate.3
Monga momwe zasonyezedwera pa Chithunzi 1, ma polyurethane opangidwa ndi UV-curable dispersions (ma UV-curable PUDs), amapangidwa ndi zinthu zomwe zimagwiritsidwa ntchito popanga ma polyurethane dispersions. Aliphatic diisocyanates amachitidwa ndi ma esters, ma diol, magulu a hydrophilization, ndi ma chain extenders omwe amagwiritsidwa ntchito popanga ma polyurethane dispersions.2 Kusiyana kwake ndi kuwonjezera kwa acrylate functional ester, epoxy, kapena ethers zomwe zimaphatikizidwa mu pre-polymer step popanga dispersion. Kusankha zipangizo zomwe zimagwiritsidwa ntchito ngati zomangira, komanso kapangidwe ka polymer ndi processing, kumalamulira magwiridwe antchito ndi mawonekedwe a kuuma kwa PUD. Kusankha kumeneku mu zinthu zopangira ndi processing kudzatsogolera ku ma PUD ochiritsidwa ndi UV omwe angakhale osapanga filimu, komanso omwe amapanga filimu.3 Mitundu yopanga filimu, kapena youma, ndiyo mutu wa nkhaniyi.
Kupanga filimu, kapena kuumitsa monga momwe kumatchulidwira nthawi zambiri, kumapanga mafilimu osakanikirana omwe amakhala ouma kukhudza UV isanayambe kuuma. Chifukwa chakuti ogwiritsira ntchito amafuna kuchepetsa kuipitsidwa kwa utoto chifukwa cha tinthu tating'onoting'ono, komanso kufunika kwa liwiro pakupanga kwawo, nthawi zambiri amaumitsidwa mu uvuni ngati gawo la njira yopitilira UV isanayambe kuuma. Chithunzi 2 chikuwonetsa njira yowumitsa ndi kuuma ya PUD yochiritsira UV.
CHITHUNZI 2 | Njira yochiritsira PUD yochiritsika ndi UV.
Njira yogwiritsira ntchito nthawi zambiri imakhala yopopera. Komabe, mpeni wopindika pamwamba komanso ngakhale chivundikiro cha madzi chagwiritsidwa ntchito. Chivundikirocho chikagwiritsidwa ntchito, nthawi zambiri chimadutsa mu njira zinayi chisanagwidwenso.
1. Kuwala: Izi zitha kuchitika kutentha kwa chipinda kapena kokwera kwa masekondi angapo mpaka mphindi zingapo.
2. Kuuma mu uvuni: Apa ndi pomwe madzi ndi zinthu zina zosungunulira zimatulutsidwa mu utoto. Gawoli ndi lofunika kwambiri ndipo nthawi zambiri limatenga nthawi yambiri. Gawoli nthawi zambiri limakhala pa >140 °F ndipo limatenga mphindi 8. Ma uvuni owumitsa okhala ndi malo ambiri angagwiritsidwenso ntchito.
- Kuyenda kwa nyali ya IR ndi mpweya: Kuyika nyali za IR ndi mafani oyenda ndi mpweya kudzapangitsa kuti kuwala kwa madzi kuchepe mofulumira kwambiri.
3. Kuchiritsa kwa UV.
4. Kuzizira: Mukachira, chophimbacho chiyenera kuchira kwa nthawi ndithu kuti chikhale cholimba. Gawoli lingatenge mphindi 10 kuti chikhale cholimba chisanafike.
Kuyesera
Kafukufukuyu anayerekeza ma PUD awiri ochiritsika ndi UV (WB UV), omwe amagwiritsidwa ntchito pamsika wa makabati ndi zolumikizira, ndi chitukuko chathu chatsopano, PUD # 65215A. Mu kafukufukuyu tikuyerekeza Standard #1 ndi Standard #2 ndi PUD #65215A pakuuma, kutsekereza, ndi kukana mankhwala. Timayang'ananso kukhazikika kwa pH ndi kukhazikika kwa viscosity, zomwe zingakhale zofunika kwambiri poganizira zogwiritsanso ntchito overspray ndi nthawi yosungira. Zomwe zawonetsedwa pansipa mu Table 2 ndi mawonekedwe enieni a resin iliyonse yomwe yagwiritsidwa ntchito mu kafukufukuyu. Machitidwe onse atatu adapangidwa mofanana ndi mulingo wofanana wa photoinitiator, VOCs, ndi mulingo wa solids. Ma resin onse atatu adapangidwa ndi 3% co-solvent.
TEbulo 2 | Kapangidwe ka utomoni wa PUD.
Mu kuyankhulana kwathu tinauzidwa kuti zophimba zambiri za WB-UV zomwe zimapezeka m'masitolo ojambulira ndi makabati zimauma pamzere wopanga, zomwe zimatenga pakati pa mphindi 5-8 UV isanaume. Mosiyana ndi zimenezi, mzere wa UV (SB-UV) wopangidwa ndi zosungunulira umauma pakatha mphindi 3-5. Kuphatikiza apo, pamsika uwu, zophimba nthawi zambiri zimayikidwa pamadzi onyowa 4-5 mils. Vuto lalikulu la zophimba za UV zomwe zimachiritsidwa ndi madzi poyerekeza ndi njira zina zosungunulira zomwe zimapangidwa ndi zosungunulira za UV ndi nthawi yomwe imatenga kuti madzi atuluke pamzere wopanga.4 Zolakwika mufilimu monga kuyera kwa malo zimachitika ngati madzi sanatuluke bwino kuchokera muzophimbazo UV isanaume. Izi zitha kuchitikanso ngati makulidwe a filimu yonyowa ndi okwera kwambiri. Madontho oyera awa amapangidwa madzi akamangika mkati mwa filimuyo panthawi ya UV.5
Pa kafukufukuyu tinasankha ndondomeko yoyeretsera yofanana ndi yomwe ingagwiritsidwe ntchito pa mzere woyeretsera womwe umatha kuchiritsidwa ndi UV. Chithunzi 3 chikuwonetsa ndondomeko yathu yogwiritsira ntchito, kuumitsa, kuyeretsa, ndi kulongedza yomwe timagwiritsa ntchito pa kafukufuku wathu. Ndondomeko yoyeretsera iyi ikuyimira pakati pa 50% mpaka 60% pa liwiro lonse la mzere kuposa muyezo wamakono pamsika wogwiritsira ntchito zolumikizira ndi makabati.
CHITHUNZI 3 | Kugwiritsa ntchito, kuumitsa, kuyeretsa, ndi nthawi yopangira.
Pansipa pali njira zogwiritsira ntchito ndi kuchiritsa zomwe tidagwiritsa ntchito pa kafukufuku wathu:
●Pakani utoto wakuda pa maple veneer.
●Kuwala kwa kutentha kwa chipinda kwa masekondi 30.
●140 °F yowumitsa uvuni kwa mphindi 2.5 (convection oven).
●Kuchiritsa kwa UV - mphamvu ya pafupifupi 800 mJ/cm2.
- Zophimba zoyera zinatsukidwa pogwiritsa ntchito nyali ya Hg.
- Zophimba zokhala ndi utoto zinakonzedwa pogwiritsa ntchito nyali ya Hg/Ga yosakanikirana.
●Ziziritsani kwa mphindi imodzi musanayambe kuyika zinthu pamodzi.
Pa kafukufuku wathu tinapoperanso makulidwe atatu osiyanasiyana a filimu yonyowa kuti tiwone ngati zabwino zina monga ma coat ochepa zingachitikenso. Kunyowa kwa 4 mils ndi komwe kumachitika pa WB UV. Pa kafukufukuyu tinaphatikizanso kugwiritsa ntchito ma coat onyowa a 6 ndi 8 mils.
Zotsatira Zochiritsa
Standard #1, chophimba chowala kwambiri, zotsatira zake zikuwonetsedwa mu Chithunzi 4. Chophimba chowala cha WB UV chinagwiritsidwa ntchito pa fiberboard yapakatikati (MDF) yomwe kale inali yokutidwa ndi basecoat yakuda ndipo chinakonzedwa motsatira ndondomeko yomwe yawonetsedwa mu Chithunzi 3. Pa 4 mils chinyowetsa chophimbacho. Komabe, pa 6 ndi 8 mils chinyowetsa chophimbacho, ndipo 8 mils chinachotsedwa mosavuta chifukwa cha kutulutsidwa kwa madzi pang'ono UV isanaume.
CHITHUNZI 4 | Muyezo #1.
Zotsatira zofananazi zikuwonekeranso mu Standard #2, yomwe yawonetsedwa pa Chithunzi 5.
CHITHUNZI 5 | Muyezo #2.
Monga momwe zasonyezedwera mu Chithunzi 6, pogwiritsa ntchito ndondomeko yofanana yophikira monga momwe zilili mu Chithunzi 3, PUD #65215A yawonetsa kusintha kwakukulu pakutulutsa/kuuma kwa madzi. Pa makulidwe a filimu yonyowa a 8 mils, kusweka pang'ono kunawonedwa m'mphepete mwa chitsanzocho.
CHITHUNZI 6 | PUD #65215A.
Kuyesa kwina kwa PUD# 65215A mu utoto wopepuka pang'ono komanso utoto wopaka utoto pamwamba pa MDF yomweyo yokhala ndi basecoat yakuda kunayesedwa kuti kuone momwe madzi amatulutsira m'njira zina zophikira. Monga momwe zasonyezedwera pa Chithunzi 7, utoto wopepuka pang'ono pa utoto wonyowa wa 5 ndi 7 mils unatulutsa madzi ndikupanga filimu yabwino. Komabe, pa utoto wonyowa wa 10 mils, unali wokhuthala kwambiri kuti utulutse madzi pansi pa nthawi yowuma ndi kuyeretsa mu Chithunzi 3.
CHITHUNZI 7 | PUD Yopepuka #65215A.
Mu fomula yoyera yokhala ndi utoto, PUD #65215A idachita bwino mu ndondomeko yofanana yowumitsa ndi kuchiritsa yomwe yafotokozedwa mu Chithunzi 3, kupatulapo ikagwiritsidwa ntchito pa 8 mils yonyowa. Monga momwe zasonyezedwera mu Chithunzi 8, filimuyi imasweka pa 8 mils chifukwa cha kutulutsidwa kochepa kwa madzi. Ponseponse mu njira zowonekera bwino, zowala pang'ono, komanso zopaka utoto, PUD# 65215A idachita bwino mu mapangidwe a filimu ndi kuuma ikagwiritsidwa ntchito mpaka 7 mils yonyowa ndi kuchiritsidwa mu ndondomeko yofulumira yowumitsa ndi kuchiritsa yomwe yafotokozedwa mu Chithunzi 3.
CHITHUNZI 8 | PUD Yokhala ndi Utoto #65215A.
Zotsatira Zoletsa
Kukana kutsekeka ndi kuthekera kwa chophimba kuti chisamamatire ku chinthu china chophimbidwa chikayikidwa m'magulu. Pakupanga izi nthawi zambiri zimakhala zovuta ngati zimatenga nthawi kuti chophimba chophimbidwa chikhale cholimba kuti chikhale cholimba. Pa kafukufukuyu, mitundu yopaka utoto ya Standard #1 ndi PUD #65215A idayikidwa pagalasi pa 5 wet mils pogwiritsa ntchito bar yochepetsera. Izi zonse zidachiritsidwa malinga ndi ndondomeko yophikira yomwe ili pa Chithunzi 3. Magulu awiri agalasi ophimbidwa adachiritsidwa nthawi imodzi - mphindi 4 pambuyo pochiritsidwa, maguluwo adalumikizidwa pamodzi, monga momwe zasonyezedwera pa Chithunzi 9. Anakhalabe ogwirizana kutentha kwa chipinda kwa maola 24. Ngati maguluwo adalekanitsidwa mosavuta popanda chizindikiro kapena kuwonongeka kwa magulu ophimbidwa ndiye kuti mayesowo amaonedwa ngati opambana.
Chithunzi 10 chikuwonetsa kulimba kwa kukana kutsekeka kwa PUD# 65215A. Ngakhale kuti Standard #1 ndi PUD #65215A zonse zidachira mokwanira mu mayeso am'mbuyomu, PUD #65215A yokha ndi yomwe idawonetsa kutulutsa ndi kuchira kokwanira kwa madzi kuti ikwaniritse kukana kutsekeka.
CHITHUNZI 9 | Chithunzi choyesera kukana kutsekeka.
CHITHUNZI 10 | Kukana koletsa kwa Standard #1, kutsatiridwa ndi PUD #65215A.
Zotsatira Zosakaniza za Akriliki
Opanga zophimba nthawi zambiri amasakaniza ma resini a WB ochiritsika ndi ma acrylic kuti achepetse mtengo. Pa kafukufuku wathu tinayang'ananso kusakaniza PUD#65215A ndi NeoCryl® XK-12, acrylic yochokera m'madzi, yomwe nthawi zambiri imagwiritsidwa ntchito ngati mnzake wosakaniza ma PUD opangidwa ndi madzi ochiritsika ndi UV pamsika wa zolumikizira ndi makabati. Pa msika uwu, kuyesa utoto wa KCMA kumaonedwa kuti ndi muyezo. Kutengera ndi momwe amagwiritsidwira ntchito kumapeto, mankhwala ena adzakhala ofunikira kwambiri kuposa ena kwa wopanga chinthu chophimbidwa. Kuyesa kwa 5 ndiko kwabwino kwambiri ndipo kuyesedwa kwa 1 ndiko koyipa kwambiri.
Monga momwe zasonyezedwera mu Gome 3, PUD #65215A imagwira ntchito bwino kwambiri poyesa utoto wa KCMA monga utoto wowala kwambiri, wowala pang'ono, komanso utoto wopaka utoto. Ngakhale ikasakanizidwa ndi acrylic mu 1:1, kuyesa utoto wa KCMA sikukhudzidwa kwambiri. Ngakhale ikapaka utoto ndi zinthu monga mpiru, utotowo unabwerera pamlingo woyenera patatha maola 24.
TEbulo 3 | Kukana mankhwala ndi madontho (mlingo wa 5 ndiye wabwino kwambiri).
Kuwonjezera pa kuyesa utoto wa KCMA, opanga adzayesanso kuti awone ngati achiritsidwa nthawi yomweyo UV ikatha. Nthawi zambiri zotsatira za kusakaniza kwa acrylic zidzawonekera nthawi yomweyo kuchokera pa mzere wothira mu mayeso awa. Chiyembekezo ndichakuti palibe kuphulika kwa coating pambuyo pa 20 isopropyl alcohol double rubs (20 IPA dr). Zitsanzo zimayesedwa mphindi imodzi pambuyo pa kuchiritsa kwa UV. Mu mayeso athu tidawona kuti kusakaniza kwa 1:1 kwa PUD# 65215A yokhala ndi acrylic sikunapambane mayeso awa. Komabe, tidawona kuti PUD #65215A ikhoza kusakanizidwa ndi 25% NeoCryl XK-12 acrylic ndikupambanabe mayeso a 20 IPA dr (NeoCryl ndi chizindikiro cholembetsedwa cha gulu la Covestro).
CHITHUNZI 11 | 20 Kupukuta kawiri kwa IPA, mphindi imodzi mutachotsa UV.
Kukhazikika kwa Utomoni
Kukhazikika kwa PUD #65215A kunayesedwanso. Fomula imaonedwa kuti ndi yokhazikika ngati patatha milungu 4 pa 40 °C, pH siitsika pansi pa 7 ndipo kukhuthala kumakhalabe kokhazikika poyerekeza ndi koyamba. Pa mayeso athu tinaganiza zoyika zitsanzozo pamalo ovuta kwambiri mpaka milungu 6 pa 50 °C. Pamikhalidwe imeneyi, Standard #1 ndi #2 sizinali zokhazikika.
Pa mayeso athu tinayang'ana mitundu yowala kwambiri, yowala pang'ono, komanso mitundu yowala pang'ono yomwe imagwiritsidwa ntchito mu kafukufukuyu. Monga momwe zasonyezedwera pa Chithunzi 12, kukhazikika kwa pH kwa mitundu yonse itatu kunakhalabe kokhazikika ndipo kunali pamwamba pa 7.0 pH limited. Chithunzi 13 chikuwonetsa kusintha kochepa kwa viscosity pambuyo pa masabata 6 pa 50 °C.
CHITHUNZI 12 | kukhazikika kwa pH ya PUD yopangidwa #65215A.
CHITHUNZI 13 | Kukhazikika kwa kukhuthala kwa PUD yopangidwa #65215A.
Mayeso ena osonyeza kukhazikika kwa PUD #65215A anali kuyesanso kukana kwa KCMA kwa mtundu wa utoto womwe wakhala ukusungidwa kwa milungu 6 pa 50 °C, ndikuyerekeza ndi kukana kwake koyamba kwa utoto wa KCMA. Zophimba zomwe sizikuwonetsa kukhazikika bwino zidzawona kuchepa kwa magwiridwe antchito a utoto. Monga momwe zasonyezedwera pa Chithunzi 14, PUD# 65215A idasunga magwiridwe antchito omwewo monga momwe idachitira poyesa koyamba kwa mankhwala/kukana kwa utoto wa utoto womwe wawonetsedwa pa Gome 3.
CHITHUNZI 14 | Mapanelo oyesera mankhwala a PUD yopaka utoto #65215A.
Mapeto
Kwa ogwiritsa ntchito zopaka utoto wopangidwa ndi madzi ochiritsira UV, PUD #65215A idzawathandiza kukwaniritsa miyezo ya magwiridwe antchito yomwe ilipo pamisika yolumikizira, matabwa ndi makabati, komanso kuwonjezera apo, idzathandiza kuti njira yopaka utoto ipitirire patsogolo liwiro la mzere kufika pa 50-60% kuposa zopaka utoto wopangidwa ndi madzi ochiritsira UV. Kwa ogwiritsa ntchito izi zitha kutanthauza:
●Kupanga mwachangu;
●Kukula kwa filimu kumachepetsa kufunika kwa ma coat owonjezera;
●Mizere yofupikitsa yowumitsa;
●Kusunga mphamvu chifukwa cha kuchepa kwa kufunika kouma;
●Zinyalala zochepa chifukwa cha kukana kutsekeka mwachangu;
●Kuchepa kwa zinyalala zophimba chifukwa cha kukhazikika kwa utomoni.
Ndi ma VOC osakwana 100 g/L, opanga amathanso kukwaniritsa zolinga zawo za VOC. Kwa opanga omwe angakhale ndi nkhawa yokulitsa chifukwa cha mavuto a zilolezo, PUD #65215A yotulutsa madzi mwachangu idzawathandiza kukwaniritsa mosavuta maudindo awo olamulira popanda kuwononga magwiridwe antchito.
Kumayambiriro kwa nkhaniyi tinatchula kuchokera mu zokambirana zathu kuti ogwiritsira ntchito zinthu zosungunulira UV zomwe zimachiritsidwa ndi zosungunulira nthawi zambiri amaumitsa ndi kuchiritsa zophimba mkati mwa njira yomwe imatenga pakati pa mphindi 3-5. Tawonetsa mu kafukufukuyu kuti malinga ndi njira yomwe yawonetsedwa pa Chithunzi 3, PUD #65215A imachiritsa makulidwe a filimu yonyowa mpaka 7 mils mu mphindi 4 ndi kutentha kwa uvuni kwa 140 °C. Izi zili bwino mkati mwa zophimba zambiri zosungunulira UV zomwe zimachiritsidwa ndi zosungunulira. PUD #65215A ikhoza kulola ogwiritsira ntchito amagetsi a zinthu zosungunulira UV zomwe zimachiritsidwa ndi zosungunulira kuti asinthe kukhala zinthu zosungunulira UV zomwe zimachiritsidwa ndi madzi popanda kusintha kwambiri mzere wawo wophimba.
Kwa opanga omwe akuganiza zokulitsa kupanga, zokutira zochokera ku PUD #65215A zidzawathandiza:
●Sungani ndalama pogwiritsa ntchito chingwe chachifupi chopaka utoto chopangidwa ndi madzi;
● Khalani ndi mzere wocheperako wa zokutira m'chipindacho;
●Kuchepetsa mphamvu ya chilolezo cha VOC chomwe chilipo;
● Dziwani kuti mphamvu zanu sizingachepe chifukwa cha kuchepa kwa kufunika kouma.
Pomaliza, PUD #65215A ithandiza kukonza bwino kupanga kwa mizere ya zokutira zomwe zimachiritsidwa ndi UV kudzera mu magwiridwe antchito apamwamba komanso kutulutsa madzi mwachangu kwa utomoni ukauma pa 140 °C.
Nthawi yotumizira: Ogasiti-14-2024
