Bo-rasaense ba Univesithing ea Theknoloji ea Michigan, Houghton ba atlehile ho etsa khoele ea lehong e hatisitsoeng ea 3D ka thepa ea thepa ea lehong.
Katleho e phatlalalitsoe pampiring ea lipatlisiso e ngotsoeng ke 'mampoli oa mohloli o bulehileng Joshua Pearce.Pampiri e ile ea hlahloba monyetla oa ho phahamisa litšila tsa thepa ea ka tlung ka har'a likhoele tsa lehong ho fokotsa litlamorao tsa tikoloho tsa litšila tsa patsi.
Ho ea ka pampiri, indasteri ea thepa ea ka tlung Michigan feela e hlahisa lithane tse fetang 150 tsa litšila tsa patsi ka letsatsi.
Ka ts'ebetso ea mehato e mene, bo-rasaense ba ile ba bontša monyetla oa ho etsa 3D ea khatiso ea lehong filament ka motsoako oa lehong-litšila le polasetiki ea PLA.Motsoako oa lisebelisoa tsena tse peli o tsejoa hamolemo e le wood-plastic-composite (WPC).
Mohato oa pele, litšila tsa patsi li ile tsa fumanoa lik'hamphaning tse fapaneng tse etsang thepa ea ka tlung Michigan.Litšila li ne li kenyelletsa matlapa a tiileng le sawdust ea MDF, LDF le melamine.
Li-slabs tsena tse tiileng le sawdust li ile tsa theoleloa ho boemo bo bonyenyane bakeng sa ho lokisa likhoele tsa WPC.Matlakala a ne a silwa ka hamore, a silwa ka lepolanka mme a sefa ho sebediswa sesebediswa sa ho thothomela, se neng se sebedisa sefene sa 80-micron mesh.
Qetellong ea ts'ebetso ena, litšila tsa patsi li ne li le boemong ba phofo le karolo ea granular ea phofo ea lijo-thollo.Thepa eo joale e ne e bitsoa "phofo ea litšila tsa patsi."
Mohato o latelang, PLA e ne e lokiselitsoe ho kopanya le phofo ea litšila ea lehong.Li-pellets tsa PLA li ne li futhumatsoa ka 210C ho fihlela li khona ho sisinyeha.Phofo ea lehong e ile ea kenngoa ho motsoako oa PLA o qhibilihisitsoeng ka lehong le fapaneng ho ea ho peresente ea boima ba PLA (wt%) pakeng tsa 10wt% -40wt% phofo ea litšila ea lehong.
Thepa e tiileng e ile ea boela ea kenngoa ka har'a mochini oa lepolanka ho lokisetsa "recyclebot" e bulehileng, e leng polasetiki ea extruder bakeng sa ho etsa likhoele.
Filament e entsoeng e ne e le 1.65mm, e le bophara bo tšesaane ho feta filament e tloaelehileng ea 3D e fumanehang 'marakeng, ke hore 1.75mm.
Khoele ea lehong e ile ea lekoa ka ho etsa lintho tse sa tšoaneng, tse kang cube ea lepolanka, kotopo ea lemati le mofeng oa lae.Ka lebaka la thepa ea mechine ea lehong filament, ho ile ha etsoa liphetoho ho Delta RepRap le Re: 3D Gigabot v. GB2 3D printers tse sebelisitsoeng thutong.Liphetoho li ne li kenyelletsa ho fetola extruder le ho laola lebelo la khatiso.
Ho hatisa patsi ka mocheso o loketseng le hona ke ntlha ea bohlokoa kaha mocheso o phahameng o ka chesa patsi le ho koala molomo.Tabeng ena khoele ea lehong e ile ea hatisoa ka 185C.
Bafuputsi ba ile ba bontša hore hoa sebetsa ho etsa likhoele tsa lehong ho sebelisa litšila tsa lehong la thepa ea ka tlung.Leha ho le joalo, ba ile ba hlahisa lintlha tsa bohlokoa bakeng sa thuto e tlang.Tsena li ne li kenyelletsa liphello tsa moruo le tsa tikoloho, lintlha tsa thepa ea mechine, monyetla oa ho hlahisa lihlahisoa tsa indasteri.
Koranta eo e ile ea phetha ka ho re: “Phuputso ena e bontšitse mokhoa o sebetsang oa botekgeniki oa ho phahamisa litšila tsa patsi ea thepa ea ka tlung hore e be likarolo tse ka hatisoang tsa 3-D bakeng sa indasteri ea thepa ea ka tlung.Ka ho kopanya li-pellets tsa PLA le li-filament tsa litšila tsa lehong tse tsosolositsoeng li ile tsa hlahisoa ka boholo ba bophara ba 1.65±0.10 mm mme li sebelisetsoa ho hatisa likarolo tse nyenyane tsa liteko.Mokhoa ona ha o ntse o ntlafatsoa ka laboratoring o ka phahamisoa ho fihlela litlhoko tsa indasteri kaha mehato ea ts'ebetso e sa rarahana.Lihlopha tse nyane tsa lehong la 40wt% li entsoe, empa li bonts'itse phokotso ea ho pheta-pheta, athe lihlopha tsa lehong la 30wt% li bonts'itse ts'episo e kholo ka ts'ebeliso e bonolo."
Pampiri ea lipatlisiso e tšohliloeng sehloohong sena e bitsoa Wood Furniture Waste-Based Recycled 3-D Printing Filament.E ngotsoe ke Adam M. Pringle, Mark Rudnicki, le Joshua Pearce.
Bakeng sa litaba tse ling mabapi le nts'etsopele ea morao-rao ea khatiso ea 3D, ingolisetse lengolo la rona la khatiso la 3D.Hape ikopanye le rona ho Facebook le Twitter.
Nako ea poso: Feb-07-2020