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Ukuphatha KokuHlanjelwa Kwizixhobo Zokukhupha Ekwenzeni Kwefomu yePolyurethane
Ukuphila kwezinto zefomu epholileyo ze-polyurethane iMIKHIQIZO kuyaphela ngaphezu kokuHlanjelwa kwizixhobo zokukhupha amaphutha wesibayi . Lezi zixhobo ezithile zidolophu elikhulu ekugcineni ukudonsa okulula nokugcina ubunzima bempahla. Ukuziqonda izindlela ezichanekileyo zokuHlanjelwa kwe- PU flexible foam umthwalciso kungaba nobunzima obukhulu ekusakelweni nokulinganisa kwezinhlayiya zokuphela. Leli guida ephambili libona izinto ezibalulekileyo ze-umthwalciso, kusukela ekulungiseni kuze kube ngokulahlela izinkinga.
Ukuziqonda Kweziciwo Ze-PU Flexible Foam Release Agent
Umboniso Wokugcina Kwegesi Kanye Nezinkomba
Umthwalciso we-Pu flexible foam ngokuvamile ungena umkhumbi othuliwe ngempawu wezici ezithile, kanye nezinkomo ezivela emshinini, i-organic solvents, namagunya okusebenza kusindiso. Lezi zici azisebenzisa ngokuhlanganisa ukuvela kwesibhedlelo esincane phakathi kweqonga lefomu kanye ngefothi ephinde. Isakhiwo sechemically sinesizathu sokuthutha kakhulu kodwa sinezimpendulo eziphathelene nechemistry ye-polyurethane.
Ukusebenza kwezinhloso ezifakwa kuzo kubuyisa kakhulu ngaphandle kokuthi kuyisiphi isiphalukethi esiphumayo. Kunciphisa ubumnandi bomgodi, kuncitha ukungena kwefomu, kunciphisa ukuhlanganiswa kwebhokisi yezinto ezenziwa. Izinguqulo ezintsha zihlinzekile izici ezinembula kumgodi, zinzima izikhathi zokucwashelwa kanye nokunakekelwa kwezimali.
Amahlelo amaphi
Izinhloso eziphathelene ne-PUR eziphambili zibonakala ngamathiphu amasha okusebenza. Zafaka izici zokuthola ngokuthi ziqhubekela phakathi kwezikhathi eziningi, ziqinisekisa ukuthuthuka phakathi kwezimo ezahlukene, zinikeza imfazwe enkulu ngezinkinga ezincane. Izinguqulo ezilungile kakhulu zibonakala ngexesha elincane lokusuka kanye zishiyela indawo encane kumgodi kanye nomfanekiso ophelile.
Ukuziqonda lezi zixwayiso zemiphumela kusiza abasebenzisi ukulungisa indlela bayaqashisa ngayo futhi bafakelane emiphumelanweni mihle. Isivinini sangokuhlisa xa siqashiselwa nokuthi kuhlanganisa kanjani nomthamo wahlukene wamakhasimende kubangelisa ngqo impumelelo yokwakha kwamagugu.
Ukubala nokusebenzisa izindlela
Izidingo zokulungiswa kwesayizi
Ngaphambi kokufaka isimboni sokukhupha se-PU esifudume, kubaluleke kakhulu ukulungisa umbhobho wesayizi. Qala ngokucula kabonakala umbhobho wesayizi ukuze ususe ibhodlela esidlalwayo, isimboni sokukhupha esidala, noma izici zonke. Sebenzisa i-solvents ezifanelekileyo yokucula futhi uzisise ukuthi isayizi iyagcwalisa kabonakala. Usuku lwesayizi kufanele kube phakathi kwezilingo ezithunyelwe, ngokuvamile phakathi kwe-20-40°C, ukuze kutholeke isimboni sokukhupha esifanelekile.
Ukuphatha kahle kwimoldi, kufakwe ingcinya yokucula kabanzi nokulunga kwezihlangothi, kunceda ukugcinwa kwezikhathi zokusebenza kwegunya lokukhipha. Nyakela ngokushesha izinkinga noma ububi bezihlangothi ukuze uvikele izinkinga zokusebenzisa futhi unqumele ukufakwa okulinganayo.
Iindlela Nezixhobo Zokusebenzisa
Kunezinhlobo ezahlukene zezindlela zokusebenzisa igunya lokukhipha kwe-PU flexible foam, eyodwa yonke ihambelana nenye indlela yokwakha. Ukusayisha kuyisimo esidebeke kakhulu, sithola inkinga enkulu yokufakwa nokuphatha. Nakuba usebenzisa izikhangala zokusayisha zegolide noma izinhlelo zenzululwazi, ukugcina izinhlobo zokusayisha nezibuko kubalulekile kakhulu ukufaka ngendlela eyalingana.
Kumathuba amathathu emoldi, cinga ukusebenzisa izixhobo zokusebenzisa ezithile noma izivivinyo eziningi zokusayisha ukuze uhlangane konke. Isidingo phakathi kwezivivinyo ezinomoya, izinhlelo ze-HVLP, noma ukusebenzisa ngokwelektrostaThishiya kubangelwa ngamathambo afana nokuvoluma kokwakha, ubukhona bomthombo, neempikiswano zezamandla.
Ukusabalalisa Iziparamitha Zokusebenzisa
Ubukhona Nokusebenzisa Kweziphumo
Ukufinyelela isilinganiso esifanele sokusebenzisa umenyezeli wokuthembeka kwe-PU flexible foam ukusungulwa kuyisisekelo ekuphileni kahle. Ukusebenzisa into encinane kakhulu kuthinta inhlawulo, ngelisho sikhathi ukusebenzisa kabanzi kungathinta inkomba yesayensi futhi kwenze izinto ziphazanyiswa. Izilinganiso ezihlelekile zokufinyelela zihamba phakathi kwe-15-25 g/m², nakuba izidingo ezithile zingahluke ngokwesimo sekhamelo kanye ngezici zomlomo.
Sebenzisa indlela ephathelene nokubala nokukhangelwa kwizilinganiso zokusebenzisa. Ukuhlola kahorroro ngokusebenzisa ubunzima obubalwe noma izixhobo ezithile zokukhangelwa kunciphisa ukulingana phakathi kwezinhlangano zokwakha.
Ukulawulwa Kwezimo
Izinkinga zezinkangala ziyinxephezela kakhulu emsebenzini komenyezeli wokuthembeka. Hlanjela ukuvavanywa okuhle kwindawo yokusebenzisa ukuqinisekisa ukuthi izimo zokusuka zilindile. Lahlale ulandele izimo zokugaya, ngoba amanzi apheleleyo angathinta imisebenzi yomenyezeli wokuthembeka. Ukuqinisekisa kwezinkoka kwindawo yokusebenzisa kunciphisa ukulandela kweviscosity nezici zokudlula komenyezeli wokuthembeka.
Hlola ukusebenzisa izindlela zokulawula ubomi bwezulu emaphakethini amathile ekwakhiweni ukuze kudalwe ngaphezu kwebizo. Lokhu kufakwa kuyaphila ngokuvamile ngokuthi kunciphise izinkinga nokulingana okuncane.
Ukulungisa Iziphene Ezijwayelekile Zokusebenzisa
Iziphazamiso Zesayizi Nenkulumo
Iziphazamiso ezihlukene zesayizi ephatha ngokusebenzisa i-release agent ye-PU flexible foam ziquka ukubonakala kwezimpawu, ukushaya, nokuphazanyika kwesithelo. Lezi zinkinga zanakekela kakhulu kumsebenzi ongavumelekile noma kuzimoto zezulu. Vusa izimpawu ngokunqoba ukucopheleka kanye nokugcwalisa kahle. Sula ukushaya ngokugcina isivinini esifanayo sokusebenzisa nezinhlobo zokuhlanganisa.
Ukukhokha kohlelo oluphambili nokubhala iziphazamiso zesayizi kusiza ekuboneni izinhlobo nezizathu. Dala izibonakude ezihlelekileyo zokuphendula kuzinkinga ezihlukene ukuze kudalwe ngaphezu kwebizo ekwakhiweni.
Izinkumbulo Ezikunciphisa Imfikayo
Ukuze uhlele kahle ukusebenza kwehholo lefothi ye-PU esinikezela ukuphulwa, qondanisa ekugcineni iziviko zokusebenzisa. Ukuqina okudala ngokuthutshana kumsebenzisi kusiza ekunikezeni tekniki enempilo nokuziqonda izinto ezibalulekile. Sebenzisa isikhwama sokulungiselela ukuhlanjelwa kwamathuba okusebenzisa ukuze uhlele kahle ukusebenza.
Hlukanisa ukusebenzisa izinhlelo zokusebenzisa ngokuzenzekelayo kwezimali ephakeme ukuze kube lula. Ukubheka phambi nomva kanye nokulungisa iziviko zokusebenzisa kusiza ekulungiseni izimo ezihlukene kanye nokugcina ubume bempilo.
Imibuzo Evame Ukubuzwa
Yini eyenzela ukuphulwa kwehholo lefothi ye-PU?
Ukuphulwa kwehholo lefothi kungenzeka ngokusebenzisa ubude obungahle, amaphoyintsi aphuthelwe, noma izimo ezingahle. Ukuhlungwa okudala, izibonelo ezihle zokucima, nezindlela zokusebenzisa ezifanayo zisiza ekukhokhleni ukuphulwa kwawo wonke.
Ngisho kangakanani kufanele kube sebenziswe uhlelo lokuphulwa?
Ukusebenzisa isilinganiso kusukela kuzinto eziningi njengebumba labafo, ubuchwepheshe befomu, nokuhlelwa kwehhamu yokuhlisa. Ngokuvamile, kudingeka ukubuyisela ukusebenzisa uma umsebenzi wokuhlisa uphazanyiswa noma ngokulinganisa nembala yezikhathi zokwakha, ngokuvamile ngaphakathi kwizikhathi ezi-3-5 kakhulu kuzo zonke izinhlotyana.
Izihlamvu zokuhlisa zingahluka njalo imithombo ye-foam?
Yebo, izihlamvu zokuhlisa ze-PU zingahluka imigqa yesayizi, ubume beceli, nemithombo yonke ye-foam. Ukusebenzisa uhlobo olungcolileyo nalokho kancane kakhulu kwehhamu yokuhlisa, ngokunye nokusetshenziswa kwemithetho elungileyo yokusebenzisa, kunciphisa iziphumo ezimbi nakuba kugcina umsebenzi obalulekile wokuhlisa.