- I-Acetone iyisisombululo esifanele se-ABS ne-ASA, kodwa ayisebenzi futhi ingase ibe yingozi ku-PLA.
- Kunezinye izindlela zokusebenzisa imishini kanye namakhemikhali ezifana nokusikwa kwe-progressive sanding, i-ethyl acetate vapor, noma i-epoxy coatings.
- Ukucubungula kahle ngemva kokucubungula akugcini nje ngokuthuthukisa ubuhle ngokususa imigqa yezendlalelo, kodwa futhi kungathuthukisa amandla esakhiwo.
Ngiyaqiniseka ukuthi kuye kwenzeka kuwe: uqeda ukuphrinta okubukeka kukuhle ngokwejiyometri, kodwa uma ubhekisisa kahle, leyo migqa ejwayelekile evundlile evela enkambisweni yokufaka izingqimba iyakuhlanyisa. Ukufeza lokho "okufana nesibuko" noma ukuqeda kobungcweti, okufana nokwezingxenye ezibunjwe ngomjovo, kuyinto ebalulekile kunoma yimuphi umenzi ofuna amaphrojekthi akhe abe ngaphezu nje kwezibonelo zohlobo oluthile.
Into yokuqala evame ukufika engqondweni ukuthulula i-acetone kukho konke, kodwa qaphela, yilapho abantu abaningi bephambuka khona. Akuwona wonke amapulasitiki asabela ngendlela efanayo, futhi uma ungaqaphile, ungashintsha ucezu lwakho lube yichibi lepulasitiki elincibilikisiwe noma ulushiye lubukeka lubi, lumhlophe. Ukuze ugweme ukungena ungaboni, ake sihlaziye ukuthi yini esebenza ngempela kuye ngokuthi usebenzisa ini nokuthi ungayenza kanjani ngaphandle kokubeka impilo yakho noma indawo yakho yokusebenzela engozini.
Umhlaba wokuqondisa izinwele ngamakhemikhali: i-Acetone, i-ABS kanye ne-ASA
Uma usebenza ne -ABS noma i-ASA , unenhlanhla, ngoba lezi zinto zingabangane abakhulu be-acetone. Lesi sinyibilikisi se-organic singancibilikisa ungqimba olungaphezulu lwepulasitiki, senze imigqa inyamalale futhi sishiye ukukhanya okumangalisayo . Inqubo ihilela ukuveza ucezu emisipheni, njengoba ukucwilisa ngqo ngokuvamile kungumqondo omubi okonakalisa imodeli futhi kudale amabhamuza.
Ukuze wenze lokhu kahle, kungcono ukusetha ibhokisi lokushelela . Ungasebenzisa isitsha se-polypropylene (esingeke sincibilike ku-acetone) bese ubeka ucezu endaweni ephakeme, njengeshidi lensimbi, ukuze lungathinti uketshezi. Indlela elula ukucwilisa amathawula ephepha ku-acetone bese uwabeka emaphethelweni, kodwa uma ufuna ukuya phambili, ungasebenzisa ifeni encane ukuhambisa umusi noma ufudumale kancane isisekelo (njalo ngokuqapha okukhulu) ukuze usheshise inqubo.
Kubalulekile ukungalivali ibhokisi lingangeni moya ukuze kuvinjelwe ukwakheka kwengcindezi kanye nengozi yokuqhuma. Futhi, uma usuyisusile ingxenye, ungayithinti ngokushesha; ipulasitiki izohlala ithambile futhi inamathela isikhathi eside. Yiyeke ihlale amahora ambalwa ukuze isinyibilikisi siphele ngokuphelele futhi izigxivizo zeminwe zingashiywa phezu kwayo.
Inkinga ye-PLA: Ingabe i-acetone iyasebenza?
Yilapho kuvela khona ukungabaza. Abasebenzisi abaningi babuza ukuthi bangenza okufanayo yini nge-PLA, futhi impendulo emfushane ingu -cha ozwakalayo . I-Acetone ayincibilikisi i-PLA ngendlela efanayo naleyo encibilikisa ngayo i-ABS; esikhundleni sokuyenza ibe bushelelezi, ingxenye cishe izobe ingacaci, iveze amabala amhlophe , noma, esimweni esibi kakhulu, impahla izoqhekeka ngenxa yokucindezeleka kwamakhemikhali.
Uma ufuna isiphetho samakhemikhali se-PLA, kunezinye izinketho ezingavamile njenge- ethyl acetate , enganciphisa kakhulu ubulukhuni, noma i-chloroform, yize lokhu kokugcina kuyingozi kakhulu futhi kunzima ukukuthola ngokusemthethweni. Enye indlela i- isopropyl alcohol , kodwa qaphela: lokhu kufaneleka kuphela ekuhlanzeni amafutha nothuli ngaphambi kokupenda; akunamphumela wokushelela ku-PLA.
Izindlela zomshini kanye nokugqoka kwazo zonke izinto
Uma ukusaphaza ngamakhemikhali kwehluleka noma kuyingozi kakhulu, ukusaphaza okuqhubekayo kuyinto endala ethembekile. Isihluthulelo lapha ukubekezela hhayi ukweqa izinyathelo. Qala ngegrit eqinile (njenge-120 noma i-180) ukuze ususe amaqhubu amakhulu bese usebenza indlela yakho kuze kufike kumagrit amahle kakhulu (1000, 2000, noma amancane). Ukusaphaza okumanzi kuyindlela eyinhloko yokuvimbela ipulasitiki ekushiseni ngokweqile ngenxa yokungqubuzana nokufeza ukuphela okubushelelezi kakhulu.
Uma ungafuni ukuchitha amahora amaningi uhlikihla, ungasebenzisa i- filler primer . Faka ijazi, ulihlikihle, bese uphinda inqubo. Lokhu kugcwalisa imisele phakathi kwezingqimba ngaphandle kokususa ingxenye enkulu yepulasitiki yokuqala. Kulabo abafuna ukuqeda okucwebezelayo kakhulu, okuchwepheshile, izembozo ze-epoxy resin ziyindlela enhle kakhulu, njengoba zakha ifilimu eqhubekayo efihla noma yikuphi ukungapheleli, yize kubalulekile ukuqaphela ukuthi zengeza ukujiya okuncane entweni.
Ukuphepha kanye nezinyathelo zokuphepha ezibalulekile
Ukusebenza ngezinyibilikisi akuyona into yokudlala. I-Acetone iyasha kakhulu , futhi umusi wayo ungakwenza ube nesiyezi noma ucasule uhlelo lwakho lokuphefumula uma ungaqaphile. Kuphoqelekile ukusebenza endaweni enomoya omuhle , okungcono kakhulu ngaphandle noma ngefeni enamandla yokukhipha umoya, futhi njalo ugqoke amagilavu e-nitrile nezibuko zokuphepha.
Ungakhohlwa ukugcina isicisha-mlilo siseduze futhi ugcine noma yimiphi imithombo yokushisa, njengogwayi noma izinhlansi zikagesi, kude nendawo yakho yokusebenza. Ukugqoka imaski enezihlungi zomusi wemvelo kunconywa kakhulu, njengoba ukuhogela la makhemikhali isikhathi eside kungaba yingozi empilweni yakho.
Amathiphu okungonakalisi ucezu
Iphutha elivamile ukulisebenzisa ngokweqile ithuluzi. Uma usebenzisa i-Dremel, sebenzisa isivinini esiphansi kanye nokunyakaza okusheshayo; uma uhlala endaweni eyodwa, ukushisa kuzoncibilikisa ipulasitiki bese kushiya umsele ongenakwenzeka ukuwususa. Ngokuphathelene nokushelela umusi, hlola ingxenye njalo ngemizuzu embalwa. Uma uyishiya ivuliwe isikhathi eside kakhulu, imininingwane emincane kanye nemiphetho kuzoba yindilinga, futhi imodeli yakho izolahlekelwa ukunemba kobukhulu.
Ukuze uhlanganise izingcezu ngaphandle kokuphazamiseka, inketho engcono kakhulu ukusebenzisa i-cyanoacrylate noma i-epoxy, kulandelwe yi-filler efakwe phezu kwejoyinti. Uma seyomile, gcoba ingcezu bese uyibeka nge-primer, ukwenze ibonakale njengeyunithi eyodwa, eqinile, futhi engenamthungo.
Ukuqeda ubuso kahle kudinga ukuqonda ikhemikhali yefilamenti ngayinye kanye nobuchwepheshe ngamathuluzi. Nakuba i-ABS ne-ASA zilulama kalula ngomusi we-acetone, i-PLA idinga indlela yobuciko esekelwe ekusikeni ngokucophelela kanye nokusetshenziswa kwama-primer noma ama-epoxy resins. Kungakhathaliseki ukuthi iyiphi indlela, ukuphepha kumele kube yinto eza kuqala ukuze kugwenywe izingozi ngezinto ezivuthayo, kuqinisekiswe njalo ukuthi ukucubungula ngemuva kokuthuthukisa ubuhle namandla engxenye ngaphandle kokubeka engcupheni i-geometry yayo yokuqala.