Indlela Yokugaya Izihlangothi Zesi-Polycarbonate: Iindlela Zokuchazela Nokugaya

Ukuziqonda Izimo Zomthelela we-Polycarbonate Ukuze Kugaywe Ngendlela Ephikeyo

Izimo ezithile zesilisa se-polycarbonate zivumela ukugaywa okuhle—kepha kuphela uma kuzothuthelwa yizindlela eziphathelene nokushisa nokusabalalisa. Ikhondlo layo elinamandla libhekisana nale-250 kunesilinga, livumela ukuguquka kwesimo ngaphandle kokuthunjwa, ngelikhalini layo elinamandla elivumela ukuguquka kwi limits ezithile. Izimo ezintathu eziphakanyisana zihlanganisa ukugaywa ngendlela ethembekileyo:

• Ukulinda intampura , uvikela ubukhulu bokuchazwa phakathi kwe–40°C kanye ne-120°C, kuvumela ukufakwa ngokushisa ngaphandle kokulahlekelwa okungasindiswa
• Amandla Okudonsa (~70 MPa) kungahlali ukuthunjwa ngokugaya
• Iflexural modulus (2.4 GPa) ikhetha isilinganiso sangaphakade-phakade — esibalulekile ekubaleni ukumeka kabusha nokwakhiwa kwezilinganiso

Lapho usebenza ngezinto, kunenhlaka encane yokugoba ebandayo evame ukuba izikhathi ezingu-150 kunobukhulu bephepha. Lokhu kusiza ekuvimbeleni ukuba kungabi khona imivimbo emincane ebusweni ngoba kunciphisa amandla asetshenziswayo. Uma othile ezama ukugoba ngaphezu kwalokho okuvunyelwe yileli zinga, uba sengozini yokulimaza kabi amaketanga e-polymer akhona kule nto uqobo. Ukuze kusetshenziswe ukushisa, ukugcina amazinga okushisa phakathi kuka-150 no-190 degrees Celsius kubalulekile. Uma wehla kakhulu, ama-molecule ngeke akwazi ukuhambisa umzimba ngokwanele ukuze akwazi ukwakheka kahle. Nokho, uma udlula ku-190 izinto ziqala ukuwohloka ngokushisa. Futhi ubukhulu bendaba bubalulekile lapha. Amashidi anesisindo esincane adinga amandla amaningi okushisa noma ama-radii amakhulu okugoba uma eqhathaniswa nalawo amancane. Le ndlela isiza ukugcina izingqimba zingahlukaniswa ngesikhathi sokucubungula futhi iqinisekisa ukuthi impahla ibuyela emuva ngokumangazayo ngemva kokubunjwa.

I-Cold Bending Polycarbonate: Lapho Isebenza Futhi Inemikhawulo Ebalulekile

Ukugaya kaphakade kuyindlela ethintimnyenyane nokuthintana ngezixhobo, efanele kumakhuba amashisa kanye nezilingo ezincinci—uma izimo zomoya zihlale ziqinile. Isebenzisa ngokupheleleyo ukuziphatha kwepolycarbonate kusikali somoya, engasemshini, kepha kufuneka kuhlinzekwe izahluko zomthwalo ukuze kubaluleke ekuxhaseni.

Ubude bekhipha okuncane ngokulinganiselwa kwaye kukulingani kwezobuchwepheshe ngempela

Amalungelo amandla wasekuhlinzini akhuluma ukuthi kumele ubude besibindi kube yizilinganiso ezingu-150 zokuphakama kwesithili. Lokhu kusho ukuthi kumongo othile ongaphakathi ngamathripi, kumele sibe ne-sibindi esingaphezu kuka-450mm. Xa le mitholampilo ingahoywa, isivinini sihlanza kangaka kakhulu futhi kusuke kwenza izikhumba ezingaphansi noma kwehluleka kabonakala umongo. Kumaqobo amakhulu kunamathripi ayisithupha, manje kunezinkinga eziningi eziyintandindondo emva kokugaya, ngakho ke abasebenzi basekuhlinzini bafuna ukugaya ngamadege 20 kuze kube 40 aphezulu kudele izindlela ezifunekayo. Futhi okugayi ngu-cold formed kumele kube ngaphandle kuka-90 degrees uma sifuna ukulinda phakade kwindima yesivinini futhi sivikale izishintsho ezigcwele ezingazothandakali.

Izinhawu zikaCold Line Bending Ukuze Mvikive izikhumba ezingaphansi Nezidinga

Izixhobo zomlando nekhandlula engcono kuyinto engavunyelwanga ukuze kugaye ngokucophelela nokuphila:

• Ukukhetha izixhobo : Izingcindezi ezinemigqa emikhulu zihlanganisa indlela ngokucophelela kumgwa wokugaya; izixhobo ezimbulu zibangela ukwahlukana kwezinkinga kwaye ziqala imicubu engaphansi
• Ukulungiselela kwemgwa : Imigwa yokuqulpha kufuneka ibe yinqamlezile kwaye iphumelele kwezinyikhi okanye iindleko—iimpawu ezihlanza izinkinga ezenza ukuba micubu ihluka ngokushesha
• Ukuphatha ukubuyela emva : Kwinqalelo ya-30°, yenza kuqala kwi-50°–70° waye uvule amahora angama-48 ukuze ubuyele emva ngendlela kabefore ukususa
• Ukulingana nokusetyenziswa : Evula ukugaya ngokushesha kwi-UV, esebenza kakhulu, noma kuzo zonke izimo eziphambeneyo—izinkinga ezingalunganga zilondolozeka kwaye zihlanza iqiniso lezimbo

Vele uhlole iiparamitha kumaterial engeyiyo qala ngaphambi kokuthatha isigxuno sokwenza.

Ukugaya ngokuchazwe: Iintekheniki Zokufakelwa Ngokuchazwe Ngokwesithelo

Isilinganiso sengqondo Elingcono, Ukususwa Kabefore, kwaye Ukuvula Ukulahlwa Ngokwesithelo

Ukufumana imiphumo embulunga kusuka kugcwalisa ngqimvi kudinga ukuphatha kahle ubude bendawo. Izinto zombhalo zihlala zihlanza kangaka uma zicophezwa phakathi kwesikhathi se-155 ne-190 degrees Celsius. Uma ubude bendawo bususa ngezansi kwe-150, ipolikhabhonethi ayizuzi kakade. Kodwa uma uphumelela kwi-220, izinto ziqaqa ezinkathwini zomthwalo, okubonakalayo njengamabhobho, utshintsho lwembala, nezinto eziphephile engazukuthatha amaphuzu kamva. Kukhona konke okungadingeki ukususa amabhloko kuqala ngendawo yezikhathi ezi-120 kusukela kuzikhathi ezi-2 uze kuzi-4. Wonke umoya osele uyashiswa wakhiwa umoya uma kucophezwa, wakhiwa amaphepha apheleleyo nomdla weyekhono ongafuneki. Imibhalo yesivikelo ibonisa ukuthi amabhloko angasuswa kahle aphiqa kuphela umbala ngaphandle kwezinye eziphindwe kumgcwaliso. Ukucopheza kakhulu kumabhloko amakhulu, i-convection ovens ihlanza kangaka, kodwa izindawo ezincane kungadinga i-infrared panels. Hlola zonke izikhathi indima yamanzi ngokusebenzisa i-contact pyrometer, ngoba izibhobho ze-oven zingahle kube nzima kakhulu kanye no-5 degrees. Lo hlobo lwebengu kuyisidingo esibalulekile xa ushada ukufumana imiphumo ethintangaye yisikhathi esifanayo.

Ukugaya Kwesoni Ngokuphelele Kunoma Ukuthwala Kwezondla: Ukukhetha Ithululelo Lokusebenza Okuhle Ekugayeni Polycarbonate

Ukugaya kwe-hot line kusebenza kakade ngoba kusobala ekumelweni kokumelana kuphela kakhulu kodwa kuthatha konke okunye ngokuphelele. Le ndlela iyagula kakhulu ekufinyeleni izici ezijulile, okwenzela ukuthi kube yisidingo esikhulu xa senzena izixhumanisi zeglasi noma senzakalisa izimvume. Xa senza izinhlayiya, i-heat guns zinika amaphuzu ahlelwe kepha zidinga ubumele okuncane ukuze bengekeli ngempela. Isicelo kukuba ushintshane inozolo njalo, oselungiselela ngamabhili angu-10 ngosuku olungu-sekhondi, futhi uyithathe ngaphakathi kuka-10 kuya ku-15 sentimita awaye apho usebenta okudliwayo ukuze akukhohlwe nto. Uhlobo lwesigawuze sinemphumela enkulu futhi. Amakhodi we-aluminum ayethula okusheshayo futhi ayethula umfanekiso ongcono, ngaphandle kwalokho izimo eziphathelene ne-silicone zivikela izihlenga ukuthi azigaywe. Abantu abaningi bathola ukuthi kungcono ukubandakanya amafomu ngaphezu kwesikhathi, phakathi kuka-7 kuya ku-10 ngaphandle kwezindlela zabo zokuphela, ngoba amafomu ayashisa emva kokubanda. Kuseni okuthi kudingeka ukuthuthwa kwebumba. Ukuthatha okwengxenye yangu-125 degrees Celsius ngokungafani kanyaka amahora ayehlanu kuye kuye kuye kumayili engu-3 ibonakala ithinta kakhulu kuzo zonke izinketho.

Ukuthuthukisa Emva Kokuqaka Nokugcina Kwezenzo Ekudlulayo

Ukuphatha Ukubuyela Emva, Imithetho Yokunqamula Kangcono, Ne-Annealing Yokususa Ukuhlaziywa

Lapho zithungwa, izinto ze-polycarbonate zivame ukubuyela emuva cishe ngama-degree angu-2 kuya kwangu-5 ngenxa yamakhemikhali azo akhumbulayo. Isixazululo esivamile? Ukugoba ngokweqile okuhlolwayo kuyasebenza kahle lapha. Ngokuyinhloko, lapho wenza lezi zingxenye, zama ukuthola ama-engeli angamaphesenti angu-15 kuya kwangu-20 ngaphezu kwalokho okudingekayo. Uma kukhona ukugoba kwesakhiwo okungaphezu kwama-degree angu-90, kunesinye isinyathelo esibalulekile okufanele sishiwo. Ukushisa okufudumele kuyadingeka lapho izinga lokushisa liphakathi kuka-125 no-135 degrees Celsius. Isikhathi esibekiwe sincike nobukhulu - ngokuvamile, vumela amahora angu-1 kuya kwangu-2 ngamamilimitha angu-3 endaba. Kungani kufanele uzikhathaze kangaka? Lokhu kusetshenziswa kokushisa kunciphisa ukucindezeleka kwangaphakathi ngamaphesenti angu-70 kuya kwangu-90. Kuvimbela ukuba kungabi khona imivimbo emincane, ikakhulukazi ezindaweni ezivame ukunyakaza noma ukudlidliza. Ngaphezu kwalokho, kuyasiza ukugcina ukubukeka okucacile okubaluleke kakhulu ezingxenyeni ezicacile ezisetshenziswa ezimbonini ezihlukahlukene.

Isidingo sokubilisa sincike kusisindo nasekusebenzeni:

Ukugcwalisa emva kokusungulwa kumele kube yisikhathi eside—akukwazi ukusheshwa kunangqondo engaphezu kuka-5°C ngomzuzu—ukulondoloza uhlelo olithe phambili lwemolekiyuli. Idatha yesifundla ikhafuma ukuthi iziqhamo ezisilinganisiwe ngempela zilinda 98% isteyibhile yesidingo emva kweminyaka engu-5 ngaphansi kwe-UV futhi kuthinta isimo sezulu, ngendlela ethi 76% yezikhathi ezingasilinganiswa .

Imibuzo Engahleliyo Ngokugaya Kwamaplastiki

Izinkinga ezibalulekile yokungena kwezinkwa yetermali kumgcwalisa ipolikarbonate?

Ipolikarbonate ilondoloza ubunzima phakathi kwe-40°C nje ukuze -120°C kumgcwalisa okwesibhedlela. Kukumgcwalisa okunxibene nokushisa, hlanjulula izinkwa phakathi kwe-150°C kuye ku-190°C ukuze ungaphuli.

Ukuhluka kwethikithi kuyiphatha kanjani inkqubo yokuququka?

Iphaneli epolikarbonate ebalaseleyo idinga amanzi okanye izikhala ezinde kunezincane. Lokhu kusiza ekukhomeni ukuthi amakhulu angaphuli futhi alungise izimbono zokubuyela emuva.

Kuyisiphi isimo sokumgcwalisa ngokushesha okusheshayo kuyo yonke into yokusebenzisa ipolikarbonate?

Hayi, akudingeki kuzinye izinhlelo eziphathelene ne-UV, ezingcono kakhulu, noma ezenziwa ngokugcina impact enkulu njengoba kunesimali esidlule.

Kungani ukususa umlilo phambi kokumgcwalisa ngu-heat kubalulekile?

Ukususa umlilo phambi kwesikhathi esiphindwe kabili kuya ku-efaneni kanye no-120°C kususa umlilo owosondeza wokuthi uma kushiswa kuzoveza i-steam, kwenza i-air pockets nezinkinga zehilimi.