Ngati chikwama cha chikopa cha pu chapachikidwa mwangozi mukachigwiritsa ntchito, ndichosavuta kuchikanda.Panthawiyi, zidzakhala zachisoni ngati thumba silinagwiritsidwe ntchito kwa nthawi yaitali.Tiyenera kuphunzira
Adzakhala ndi luso lokonza matumba ophwanyika.
1. Ngati thumba lachikopa la PU likung'onongeka pang'ono, mungagwiritse ntchito kansalu kakang'ono ka thonje kuti munyowetse dzira loyera, sungani mosamala malo owonongeka kuti mukhale ophwanyika, ndipo makamaka adzakhala osawoneka pambuyo poyanika;
2. Ngati thumba lachikopa la PU ndi mtundu wowala kwambiri, tikhoza kusakaniza ufa wa nsapato wachikuda ndi dzira loyera ndikulikonza molingana ndi njira yoyamba.Mukhozanso kugwiritsa ntchito misomali;
3. Ngati thumba lachikopa la PU lili ndi malo aakulu owonongeka kapena malo owonongeka akuwonekera komanso ovuta kukonzanso, mungagwiritse ntchito mitundu ina ya zokongoletsera zazing'ono kuti muphimbe malo owonongeka.
Kodi chikwama chachikopa cha pu ndi cholimba?
Matumba achikopa a PU amakhala olimba kwambiri, osamalidwa bwino, komanso amakhala ndi moyo wautali.
PU ndi polyurethane, ndipo PU khungu ndi khungu la polyurethane.PU ndi chidule cha English ploy urethane, mankhwala Chinese dzina polyurethane, khalidwe lake ndi zabwino kapena zoipa, ambiri
Matumba achikopa akuluakulu nthawi zambiri amagwiritsa ntchito zikopa za PU zochokera kunja;Chikopa chofananira ndi PU nthawi zambiri chimakhala chikopa chachiwiri chomwe mbali yake yakumbuyo ndi chikopa cha ng'ombe.Pamwambapo ndi wokutidwa ndi wosanjikiza PU utomoni, choncho amatchedwanso film chikopa cha ng'ombe.Mtengo wake ndi wochuluka
Mtengo wotsika mtengo komanso wapamwamba wogwiritsa ntchito.Amapangidwanso kukhala mitundu yosiyanasiyana yamagiredi ndikusintha kwaukadaulo, monga zikopa za ng'ombe zosanjikiza ziwiri, chifukwa chaukadaulo wake wapadera, mtundu wokhazikika, mitundu yamabuku, ndi zina zambiri.
Chikopa chapamwamba chisanachitike, mtengo ndi kalasi sizocheperapo kusiyana ndi chikopa choyamba.Kutengera chilengedwe, chikopa cha PU sichingokhala ndi mawonekedwe achikopa chenicheni, komanso chimakhala cholimba kwambiri.M'mayiko akunja, chifukwa cha chitetezo cha nyama
Chikoka cha gulu lachitetezo, limodzi ndi chitukuko chaukadaulo, magwiridwe antchito ndi kugwiritsa ntchito zikopa za PU zaposa zikopa zachilengedwe.
Makhalidwe a matumba a chikopa cha pu
1. Mphamvu zapamwamba, zoonda ndi zotanuka, zofewa ndi zosalala, mpweya wabwino wodutsa komanso madzi.
2. Imakhalabe ndi mphamvu zabwino zamakokedwe ndi mphamvu zosunthika pa kutentha kochepa, kukana kukalamba kowala bwino komanso kukhazikika kwa hydrolysis.
3. Zosinthika komanso zosagwirizana, maonekedwe ndi machitidwe ali pafupi ndi zikopa zachilengedwe, zosavuta kutsuka ndi zowonongeka, zosavuta kusoka.
4. Pamwamba pake ndi yosalala komanso yaying'ono, ndipo ingagwiritsidwe ntchito pa mankhwala osiyanasiyana a pamwamba ndi utoto, ndi mitundu yosiyanasiyana.
Momwe mungayeretsere zikwama zachikopa za pu
1. Nthawi zambiri, matumba ambiri otsuka amayamba kugwiritsa ntchito maburashi oyeretsera kapena nsalu za thonje zoyera zoyenera kupangira zinthu zosiyanasiyana kuchotsa fumbi ndi dothi.
2. Ngati matumba achikopa apukutidwa ndi chotsukira chikopa, nsalu yoyeretsera magalasi ya magalasi nthawi zambiri imakhala yotchipa komanso yosavuta kugwiritsa ntchito.Sichidzakwapula chikwama chanu chokondedwa, ingochiyikani mofanana.
Itha kubwezeretsa gloss ya thumba.
3. Chofufutira cha pensulo ndi chofufutira chokhala ndi imvi ndi choyera mbali zonse ziwiri, zitha kugwiritsidwa ntchito ngati chida choyeretsera zikwama zachikopa za PU, ngati zili zodetsedwa pang'ono, mutha kugwiritsa ntchito chofufutira choyera kuti mufufute pensulo mopepuka.
Pukutani mofatsa kuchotsa;dothi lalikulu litha kuchotsedwa popaka chofufutira cha imvi kumapeto kwa cholembera cha mpira.Chifukwa chake ndikuti kukangana ndi kolimba, koma dzanja liyenera kukhala lopepuka kuti lisawonongeke thumba.
Nthawi yotumiza: Sep-27-2020