Nkhani

Colour coated board ndi zomangira zobiriwira komanso zachilengedwe.Momwe mungasankhire moyenera, kuigwiritsa ntchito moyenera, ndikuwongolera moyo wake wautumiki ndi nkhani yomwe ikukhudza kwambiri eni ake ndi omanga mainjiniya.Baosteel, ngati chomera chazitsulo zonse, ali ndi chidziwitso chochuluka pakupanga ndi kugwiritsa ntchito mbale zokutira zamitundu."Scientific Material Selection" gawo la "Scientific Material Selection" limapereka malingaliro achidule ndi mawu oyambira kwa ogwiritsa ntchito posankha ndikugwiritsa ntchito mbale zokutira zamitundu.
Kusankha koyenera kwa mapanelo okutidwa ndi utoto kuyenera kuganizira za chilengedwe, malo ogwiritsira ntchito, moyo wa mapangidwe, ndi mawonekedwe a nyumbayo, kuti asankhe mtundu wachitsulo, mawonekedwe, zokutira, ndi zokutira zomwe zikugwirizana nazo.Omanga, eni mainjiniya, ndi mapurosesa amaganizira momwe chitetezo chimagwirira ntchito (kukana kukhudzidwa, kukana kugwedezeka, kukana moto, kukana kuthamanga kwa mphepo, kukana chipale chofewa), magwiridwe antchito anyumba (osalowerera madzi, kutsekereza mawu, kutsekereza), kulimba (kukana kuipitsidwa, kukhazikika, kusunga mawonekedwe) , ndi chuma (chotsika mtengo, kukonza kosavuta, kukonza kosavuta, ndi kusintha kosavuta) kwa nyumba.Kwa ogulitsa mbale zachitsulo zokhala ndi mtundu, zinthuzi ziyenera kusinthidwa kukhala zida zachitsulo zokhala ndi zitsulo zokhala ndi zitsulo zokhala ndi zitsulo ndikutsimikiziridwa.Zofunikira pakugwirira ntchito kwa mbale zokhala ndi zitsulo zokhala ndi utoto zimaphatikizanso zomwe zimapangidwira (mphamvu yamakina, mphamvu yotulutsa, elongation), magwiridwe antchito (mtundu wokutira, makulidwe a ❖ kuyanika, ndi zomatira zokutira), ndi ntchito zokutira (mtundu wokutira, mtundu, gloss). , durability, processability, etc.).Pakati pawo, kukana kwa mphepo, kukana kwamphamvu, kukana kwa chipale chofewa, kukana zivomezi, ndi zina zonse zimagwirizana ndi makina azinthu, ndipo ndithudi, zimagwirizananso ndi mawonekedwe, makulidwe, kutalika, ndi matayala a mbale zachitsulo zamitundu. .Ngati mbale zokhala ndi zitsulo zamitundu yoyenera zimasankhidwa ndikuphatikizidwa ndi kapangidwe kachitsulo kachitsulo koyenera, sizingangokwaniritsa chitetezo cha nyumba komanso kuchepetsa ndalama zaumisiri.Kukhalitsa, kagwiridwe ka ntchito, ndi kusungidwa kwa zinthu kumatsimikiziridwa makamaka ndi kulimba kwa zokutira ndi zokutira.

Coating zosiyanasiyana

Pakalipano, mitundu ya zokutira zomwe zimagwiritsidwa ntchito popanga zitsulo zokhala ndi utoto zimaphatikizapo zokutira za polyester (PE), zokutira za fluorocarbon (PVDF), zokutira zosinthidwa za silicon (SMP), zokutira zamtundu wapamwamba (HDP), zokutira za acrylic acid, zokutira za polyurethane (PU) , zokutira za pulasitiki (PVC), etc.

Polyester wamba (PE, Polyester)
Kupaka kwa PE kumamatira bwino kuzinthu, ndipo mbale zachitsulo zokutidwa ndi utoto ndizosavuta kukonza ndi kupanga, zotsika mtengo, ndipo zimakhala ndi zinthu zambiri.Pali zosankha zambiri zamtundu ndi gloss.Poyang'aniridwa mwachindunji ndi malo ambiri, moyo wake wodana ndi dzimbiri ukhoza kufika zaka 7-8.Komabe, m'malo ogulitsa mafakitale kapena malo oipitsidwa kwambiri, moyo wake wautumiki udzachepetsedwa.Komabe, zokutira poliyesitala si abwino kwa UV kukana ndi filimu kukana ufa.Chifukwa chake, kugwiritsa ntchito zokutira za PE kuyenerabe kukhala kochepa, ndipo nthawi zambiri zimagwiritsidwa ntchito m'malo omwe ali ndi mpweya woipa kwambiri kapena zinthu zomwe zimafunikira kuumba ndi kukonza kangapo.

Silicone Modified Polyester (SMP)
Chifukwa cha kukhalapo kwa magulu othandizira - OH/- COOH mu polyester, ndikosavuta kuchitapo kanthu ndi ma polima ndi zinthu zina.Pofuna kukonza kukana kwa dzuwa ndi kupukutidwa kwa PE, utomoni wa silikoni wokhala ndi mtundu wabwino kwambiri wosungira komanso kukana kutentha umagwiritsidwa ntchito popanga denaturation.Chiŵerengero cha denaturation ndi PE chikhoza kukhala pakati pa 5% ndi 50%.SMP imapereka kukhazikika kwabwino kwa mbale zachitsulo, zokhala ndi moyo wokana dzimbiri mpaka zaka 10-12.Inde, mtengo wake ndi wapamwamba kuposa wa Pe, Komabe, chifukwa chosakhutiritsa kumamatira ndi processing formability wa Silicone utomoni kuti zipangizo, SMP zitsulo TACHIMATA mbale zitsulo si oyenera zinthu zimene zimafuna njira angapo akamaumba, ndipo makamaka ntchito kumanga madenga ndi makoma akunja.

Polyester yolimba kwambiri (HDP, polyester yolimba kwambiri)
Ponena za zofooka za PE ndi SMP, kampani yaku Britain ya HYDRA (yomwe tsopano idapezedwa ndi BASF) ndi kampani yaku Sweden BECKER idapanga zokutira za poliyesitala za HDP koyambirira kwa 2000 zomwe zimatha kukwaniritsa 60-80% kukana kwanyengo kwa zokutira za PVDF, ndipo zimaposa zokutira wamba za silicon zosinthidwa poliyesitala. .Kukana kwawo kwakunja kwanyengo kumafika zaka 15.Utoto wa polyester wosagwirizana ndi nyengo umapangidwa pogwiritsa ntchito ma monomer okhala ndi mawonekedwe a cyclohexane kuti akwaniritse bwino pakati pa kusinthasintha, kukana nyengo, ndi mtengo.Ma polyols onunkhira aulere ndi ma acid amagwiritsidwa ntchito kuchepetsa kuyamwa kwa kuwala kwa UV ndi utomoni, kukwaniritsa kukana kwanyengo kwa zokutira.Kuonjezera kwa ultraviolet absorbers ndi steric hindrance amines (HALS) mu njira yokutira kumapangitsa kuti filimu ya penti isagwirizane ndi nyengo.Chophimba chapamwamba cha polyester chosagwirizana ndi nyengo chadziwika ndi msika wakunja, ndipo kukwera mtengo kwake ndikopambana kwambiri.
PVC Plastisol
PVC utomoni ali wabwino kukana madzi ndi kukana mankhwala, ndipo zambiri yokutidwa ndi okhutira mkulu olimba, ndi ❖ kuyanika makulidwe a 100-300 μ Pakati m, akhoza kupereka yosalala PVC ❖ kuyanika kapena kuwala embossing mankhwala monga embossing ❖ kuyanika;Chifukwa choti zokutira za PVC ndi utomoni wa thermoplastic wokhala ndi makulidwe apamwamba a filimu, zimatha kupereka chitetezo chabwino pama mbale achitsulo.Koma PVC ili ndi mphamvu yofooka ya kutentha.M'masiku oyambirira, ankagwiritsidwa ntchito kwambiri ku Ulaya, koma chifukwa cha malo ake osowa zachilengedwe, akugwiritsidwa ntchito mochepa.

PVDF fluorocarbon
Chifukwa cha mphamvu zomangirira zolimba pakati pa zomangira zamakemikolo a PVDF, zokutira zimakhala ndi kukana kwa dzimbiri komanso kusunga utoto.Ndilo chinthu chotsogola kwambiri pamakampani omanga chopaka zitsulo zokhala ndi chitsulo chokulirapo, chokhala ndi kulemera kwakukulu kwa mamolekyu ndi chomangira chowongoka.Choncho, kuwonjezera pa kukana mankhwala, makina katundu, UV kukana, ndi kutentha kukana ndi zofunikanso

Pakusankha koyambira, pali zinthu ziwiri zofunika kwambiri.Imodzi ndikulingalira kumamatira pakati pa primer ndi topcoat, komanso gawo lapansi.China ndi chakuti choyambira chimapereka zambiri za kukana kwa dzimbiri kwa zokutira.Kuchokera pamalingaliro awa, epoxy resin ndiye chisankho chabwino kwambiri.Ngati mukuganizira kusinthasintha ndi kukana kwa UV, polyurethane primer imathanso kusankhidwa.
Kwa zokutira kumbuyo, kusankha kolondola kwambiri ndikusankha mawonekedwe awiri osanjikiza, omwe ndi gawo limodzi la zoyambira zam'mbuyo ndi nsonga imodzi ya topcoat yakumbuyo, ngati mbale yachitsulo yophimbidwa ndi gulu limodzi.Zoyambira ndi kutsogolo ndizosiyana, ndipo chovala chapamwamba chiyenera kukhala chowala (monga choyera) polyester.Ngati mbale yokutidwa ndi chitsulo chopangidwa ndi chitsulo chophatikizika kapena sangweji, ndikwanira kuyika utomoni wa epoxy wokhala ndi zomatira komanso kukana dzimbiri kumbuyo.
Pakali pano, pali zinchito mitundu TACHIMATA mbale zitsulo, monga antibacterial mtundu ❖ kuyanika, odana ndi malo amodzi ❖ kuyanika mtundu, matenthedwe kutchinjiriza mtundu ❖ kuyanika, kudziyeretsa kudziyeretsa mtundu ❖ kuyanika, etc. Kukula kwa zinthuzi cholinga chake ndi kukwaniritsa zosowa zapadera. ogwiritsa ntchito, koma nthawi zina sikutheka kulinganiza magwiridwe antchito ena azinthu zopaka utoto.Chifukwa chake, ogwiritsa ntchito akasankha mbale zogwirira ntchito zachitsulo zokhala ndi utoto, ziyenera kumveka bwino pazosowa zawo zenizeni.