Amasikhipha angaphansi kwe-polyurethane okusebenza ukususa amaqhina aphakathi kwezindawo ezingazihlukaniswa ngokuphelele

Kungani Amasikhipha Ase-Polyurethane Akhuluma Kakhulu Kulokho Okungasekho Ngokuphelele Kuizindawo Zokufinyelela Ngokwanele

Ukuhambana Ngokuphelele Kwemithambo Yokuqinisa Nokuhambana Ngokuphelele Kwemithambo Yokubeka Iphresha Efanayo Kuizindawo Zokugcina, Ezincane Noma Zokufinyelela Ngokwanele

Kukhuluma ngezindawo ezingaqhelekileyo, izibhala zase-polyurethane zikhuluma ngokuphelele nezinye izinyathelo ezikwakhiwe ngokucindeze kakhulu. Lezi zibhala ezisithunywa ngokuphelele ziyakwenzela ukuthi zilungele ukulandela iziqondiso zezihlalo zemithambo yokuqondisa ngaphandle kokubona izihlalo ezincane noma ukugula isihlalo sesihlalo. Lokhu kukhuluma ngokuphelele kwizindawo ezingaqhelekileyo njengeziminingi nezikhululeko zokuhlela, lapho izinto zihlala zihlala emithambeni futhi zibuyela kuzo izinkinga zokulandelela nokuhlwa okuphakeme. Njengoba kubonakala eminingi ka-Silver Peak, baphinda babuyekele kulezi zibhala zase-polyurethane ngo-2023 futhi babebona imiphumela emihle kakhulu. Ukubuyela kwabuyiselwe kushukuma kusukela kumapound angu-15 kuze kube kumapound angu-1 ngameter engu-1, futhi izihlalo zabuyela ngomkhathi ophakade ngokulingana nomkhathi wokubuyela kabili. Indlela enye eyenkulu? Lokhu kufana nokungaboni kwezinto ngendlela okufana ne-rubber. Izibhala zase-rubber zidinga amandla amaningi kakhulu ukuthi zilungele ukulandela izinye izinyathelo, okuyenza ukuthi zilungelwe kakhulu ngokuphelele.

Ukuqondisa kwe-geometry yomphakathi wokuphatha nokukhetha kwe-durometer okubalulekile ukufuna amaphakathi amancane

Abahambisi bakhelwa izikhumba zokuphatha zase-polyurethane ukuzihlanganisa nezinkinga zokuphatha kwe-micro-clearance ngamathuba amathathu athiyo:

• Ukukhetha kwe-durometer eyahlukene (55A–90A Shore) ukulandela ukuthi iphakathi phakathi kwezinkimbinkimbi nezinkimbinkimbi zokuphatha
• Iziprofayili zokuphatha ngokwesibhedlela noma ngokwesichiza , zihlanganiswe ngokuphelele ukusobala kwezinkinga zokuphatha zokugcina
• Izidesayini zezincwadi ezincane , zifaka emaphakathini angaphezu kwe-5 mm

Ubukhulu bekuphakanyiswa kwenkumbulo kusiza ukususa izindawo ezingathwaliweyo njengamaphakathi emibhalo yezihlalo, amagqabi okuphakama okuzimela ngokufana nokuthwaliwa ngokubili, nezinye izindawo zokugcina ezizimele. Lezi zindawo zingaba yizindawo ezithile kuphela apho izinto ziyakwakha futhi ziyakubangela izinkinga zonke zokusebenza. Uma iziblade zihlanganiswe kahle nendawo eshiyekile, abaningi abasebenzisa lezi zikhala bavuma ukuthi bafumana ukususa ama-90% wezinto ezingashiywa kulezi zindawo ezingathwaliweyo. Izinketho zezincane zokusebenza noma izinketho zokusebenza ngokwesiliva azikwazi ukufanana nalezi ubukhulu bekuphakanyiswa, ngakho ke abaningi abasebenzisa lezi zikhala bazifunda kulezi zikhala ezingasemthethweni.

Ubukhulu bekuphakanyiswa kanye nokusebenza kude kweziblade zokususa ezipolyurethane

Ukuhlanya kwamaphakathi kwezindawo ezingathwaliweyo nezindawo ezingazimelwa ngokubili: imininingwane yokuqondisa ISO 4649 vs. isiliva noma izinketho zokusebenza ngokwesiliva

Amaphakathi we-polyurethane ayathumela ukuthi akhuseleke kakhulu ekupheleni kwemithombo yezinkinga eziphambili njengezinkinga zokuhlanza nezinkinga zokubeka amasimu, apho izinto ezihlanzayo zikhupha kakhulu amaphakathi amashwa. Ukuzimela okwesibonelo kuvumela ukuthi i-polyurethane ikhuseleka kakhulu ngokuphela kwemithombo yezinkinga ngokuphela kwezinkambo zokuhlanza ngokuphela kwe-rubber yezinkambo zokuhlanza (Industrial Materials Journal, 2023). Ukuzimela kwe-ISO 4649 kwezinkinga zokuhlanza kuvumela futhi lezi zinkinga:

Amaphakathi we-polyurethane awabona emsebenzini ngaphezu kwezikhathi zesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi sesikhathi ses......

Ukukhuseleka kwezinkinga zokuchitha, ukuchitha, nokuthi isimo sokubonakala kwezinto zokuzilahla—kubalulekile kwezinkinga zezinkambo zokudla, ukuhlanza, nokuvula izinto

Ngaphezu kwekukhanyisa, i-polyurethane iyaphila apho imiphumela yezinhlobo zokugqibela nezinhlobo zokubhuka kuzokwenza izinkinga kwezinye izinto. Emasimini okuvula kakhulu okuvulwa ngamalitha angu-1,200 ngusuku, iziphozo zesilicone ziyabuyela kwi-92% yesiqondiso sabo esikhundleni ngaphandle kokuphinda kuphinda kwezinkambu zamaglashe nezinkambu zametalu. Ziyakhiyela ukukhanya kwe-ozone, ukukhanyisa kwe-microbes, nokubhuka kwezinto ezihlukahlukene ekuncipheleni:

• Amahashi amakhulu nezinhlobo zokuzimisa ezingena kwezimboni zokuvula
• Amasaniwathi okushayela abantwana nezinkhawulo zokuhlela izinkomo
• Amazitholo okukhanya kwe-hydraulic nezinkhawulo zokusebenza emizini

Izifomuleyisheni zesi-NSF/3-A ziyakhiyela izinkinga ezikhulu zokushayela abantwana, zikhubaza izinkinga zokufaka izinto ezingafanele kungabi nazo, futhi ziyasebenza ngokuphelele ngezinkhawulo zokuhlela izimbali zokuvula. Ngakho-ke, izikhathi zokubuyisela ziyahamba ku-12–18 izinyanga—ngokuphinda kabusha kanye ngokuphinda kabusha kwe-rubber kwezinye izindawo—kukhula kakhulu ukusebenza kwemisebenzi yokuhlela nokholwa kwemali yonke yokusebenza.

Ukuhlela Izimbali Zokuvula Ngokusebenzisa Iziphozo Zesi-polyurethane

Ukubeka kwezinhloso: izindawo zesikhathi sesokuqala, sesesibili, nasesithathu zokususa izinto ngokusebenzisa i-polyurethane ukususa izinto ngamaphuzu

Ukuhlanza izihluzi zokuhambisa ngokuphelele kudinga amaphasi amaningi okuhlanganiswa. Umqala wokuphatha kuyizihluzi zokuphatha zasepolyurethane ezimangaliswa emva kwezihluzi zokuphatha zasephakathi. Lezi zihluzi zihlanganisa ngokugcwele umbhalo wemithombo yezinto ezingafihliweyo ngokuthi ziyabeka ubunzima obulinganayo phansi kwesihluzi. Emva kwalokho kubhekwa izihluzi zokuphatha zesiwili esizimele kusuka emuva kwezihluzi zokuphatha zasephakathi. Lezi zihluzi zinezinkampani eziningi nezinhlobo zezihluzi ezibomvu ezinobunzima obungu-90A kuya ku-95A kweShore scale, okusiza ekukhuluma kwezinye izinto ezingaqondakali ezingabukekile kumigqa yezihluzi nezinhlobo zezinhlobo zezihluzi. Kulezinye izindawo ezingazange zibe zikhulu, izihluzi zokuphatha zesiyisithathu zihlanganisa ukuphatha kwezinye kusuka emuva kwezihluzi zokuphatha zasephakathi noma kuphi umgama wokuphatha uzoba zikhulu. Okukhombisa ukuthi ipolyurethane iyasebenza ngokuphelele kukuthi iyahlukanisa ubunzima nobukhona. Lokhu kusiza ekuthinteni ukuthi isihluzi sifanele ukuthintela ukuthi siyabuyekeka ngokuphathelene nokuthintela ukuthi isihluzi sifanele ukuthintela ukuthi siyabuyekeka ngokuphathelene nokuthintela ukuthi isihluzi sifanele ukuthintela ukuthi siyabuyekeka ngokuphathelene nokuthintela ukuthi isihluzi sifanele ukuthintela ukuthi siyabuyekeka ngokuphathelene nokuthintela ukuthi isihluzi sifanele ukuthintela ukuthi siyabuyekeka ngokuphathelene nokuthintela ukuthi isihluzi sifanele ukuthintela ukuthi siyabuyekeka ngokuphathelene nokuthintela ukuthi isihluzi sifanele ukuthintela ukuthi siyabuyekeka ngokuphathelene nokuthintela ukuthi isihluzi sifanele ukuthintela ukuthi siyabuyekeka ngokuphathelene nokuthintela ukuthi isihluzi sifanele ukuthintela ukuthi siyabuyekeka ngokuphathelene nokuthintela ukuthi isihluzi sifanele ukuthintela ukuthi siyabuyekeka ngokuphathelene nokuthintela ukuthi isihluzi sifanele ukuthintela ukuthi siyabuyekeka ngokuphathelene nokuthintela ukuthi isihluzi sifanele ukuthintela ukuthi siyabuyekeka ngokuphathelene nokuthintela ukuthi isihluzi sifanele ukuthintela ukuthi siyabuyekeka ngokuphathelene nokuthintela ukuthi isihluzi sifanele ukuthintela ukuthi siyabuyekeka ngokuphathelene nokuthintela ukuthi isihluz......

Ukugxilwa kwe-hybrid ngemibhishile ezingavumelani ne-FDA ukwenza ukususa kwezikhathi zonke (ukususa kabefore + ukususa kwezinhlobo zamagqabi amancane)

Kodwa izi-scrapers zesiphothi zinokusebenza ngokuhlanganisa nezibhusha ezizokubhala ngokuphelele, okuzokwenzela ukuthi kwenziwe isikhombiso sokuchitha esihle kwezinhlelo zokusebenza zemithambo. Iziscraper ezingaphambili ziyasebenza kuqala ukuthi zilondoloze izinto ezingaphezulu, zikhiphe izinto ezingaphezulu kusukela kufika ekuthinteni. Emva kwalokho kubuya izi-brush zokugcina ngezifilamenti zazo ezithile ezisakhiwe ukuthi asizange zishwe izinyathelo, okuyizinyathelo ezincane zokuchitha izinyathelo ezincane ezihlukene emaphakathini nezindawo ezingafihliki kwezibhusha zokubhala. Lokhu kubili kubhekise konke kusukela kwezinto ezingaphezulu kusukela kwezinyathelo ezingamaphakathi ozokungabonakali ngokusebenza kweziscraper ezingaphambili. Abaprofayili bokudla bakhula kakhulu ngalesi sikhombiso ngoba kuyabeka izinkampani zabo zihle kahle ngokulandela izimpendulo zokugcina ubuso, futhi kuyabula izinto ezingaphezulu zonke kwezibhusha zokubhala zezinhlelo ezahlukene. Amasiteyishi okuthatha izinto ezingaphezulu abonisa ukuthi kunezinto ezingaphezulu kungenani kwe-98% emva kokuguqula kulesi sikhombiso esihlanganisiwe. Ngokubhalwa kwesikhumbuzo sokusebenza, kukho isikhumbuzo esihle esiqondile. Abatekhnisi bavuselela izi-brush ezingaphambili ngokuphelele lapho izi-scrapers zesiphothi zingaphambili zibonisa izinkambu zokuvutha. Lokhu kubhekise isikhumbuzo sokuvutha kwezibhusha kakhulu, ngokuphelele kubhala amashumi amabili noma amashumi amathathu okuvutha kwezibhusha emaphakathini aphakathi kwezinkampani zokuprosesa izinto ezingaphezulu lapho ukuvutha kuyakhala kakhulu.

Imibuzo Evame Ukubuzwa

Yini okwenza amasikrapeya we-polyurethane abe banezinkinga ezinkulu kwezindawo ezingazihlanganisi?

Amasikrapeya we-polyurethane asinika ukuzimela phansi kwemithambo yokuqondisa nokuzimela kwezinhlobo zokugcina, okusiza kubona ukuthi kubhekiswe isibindi esifanayo kwezinhlobo zezindawo ezingaqondisi, ezingaphansi noma ezingaqondisi kahle, apho izinto ezingenakwazi ukusebenza ngokujwayelekile zizwa.

Kungani izibalo ziyafisela amasikrapeya we-polyurethane kwezindlela zokuhlela?

Amasikrapeya we-polyurethane asinika ukuthi kubhekiswe isibindi esikhulu kwezinyathelo, nokukhetha ukuthi kubhekiswe isibindi sokugcina, okusiza kubona ukuthi kubhekiswe isibindi esikhulu kwezindawo ezingaqondisi kahle, apho izinto ezingenakwazi ukusebenza ngokujwayelekile zezinto zokuphatha izinkumbulo noma izinkumbulo zokuphatha izinkumbulo zizwa.

Amasikrapeya we-polyurethane abanini njani ngezinye izinto kwezinhlobo zokugcina?

Amasikrapeya we-polyurethane asinika ukuthi kubhekiswe isibindi esikhulu kwezinhlobo zokugcina nokuthi kubhekiswe isibindi esikhulu kwezinhlobo zokugcina ngokuphelele kunye nezinkumbulo zokuphatha izinkumbulo noma izinkumbulo zokuphatha izinkumbulo, ikakhulu kwezindawo ezingaphakathi kanye nezindawo ezingaqondisi kahle.

Izinca zokusebenzisa amasikrapeya we-polyurethane kwezinhlobo zokucleana kwezinkumbulo ziziphi?

Amasikhipha angaphansi kwe-polyurethane ayathintela ukususa kwemithombo ngokuphelele kwezindawo zokucleana kwezihluzi, abonisa ukuthi kuncamuka kwezihluzi kuncamuka okuncane nokuthi kunezikhathi ezingavakalanga ezizwakalayo.