Melemo ea setsi sa machining sa bethe ea 'mabole ea liminerale ke efe?
Li-mineral castings (granite e entsoeng ke motho aka konkreite ea resin) e amohetsoe haholo indastering ea lisebelisoa tsa mochini ka lilemo tse fetang 30 e le thepa ea meralo.
Ho ea ka lipalo-palo, Europe, mochine o le mong ho o mong le o mong oa 10 o sebelisa li-mineral castings e le bethe.Leha ho le joalo, tšebeliso ea phihlelo e sa lokelang, tlhahisoleseding e sa fellang kapa e fosahetseng e ka lebisa lipelaelo le leeme khahlanong le Mineral Castings.Ka hona, ha ho etsoa lisebelisoa tse ncha, hoa hlokahala ho hlahloba melemo le melemo ea li-mineral castings le ho li bapisa le lisebelisoa tse ling.
Motheo oa mochini oa kaho ka kakaretso o arotsoe ka tšepe e entsoeng ka tšepe, ho lahla liminerale (polymer le / kapa konkreite ea resin e sebetsang), sebopeho sa tšepe / weld (grouting/non-grouting) le lejoe la tlhaho (joalo ka granite).Ntho e 'ngoe le e' ngoe e na le litšobotsi tsa eona, 'me ha ho na thepa e phethahetseng ea sebopeho.Ke feela ka ho hlahloba melemo le melemo ea thepa ho latela litlhoko tse khethehileng tsa moralo, ho ka khethoa lisebelisoa tse ntle tsa moralo.
Mesebetsi e 'meli ea bohlokoa ea thepa ea meralo-e tiisa ho kenngoa ha likaroloana tsa geometry, boemo le matla, ka ho latellana ho beha litlhoko tsa ts'ebetso (ts'ebetso e tsitsitseng, e matla le ea mocheso), litlhoko tsa ts'ebetso / tsa sebopeho (ho nepahala, boima, botenya ba lebota, boiketlo ba liporo tsa tataiso) bakeng sa ho kenya thepa, tsamaiso ea tsamaiso ea mecha ea litaba, thepa) le litlhoko tsa litšenyehelo (theko, bongata, ho fumaneha, litšobotsi tsa tsamaiso).
I. Litlhoko tsa ts'ebetso bakeng sa lisebelisoa tsa mohaho
1. Litšobotsi tse tsitsitseng
Tekanyetso ea ho lekanya thepa e tsitsitseng ea motheo hangata ke ho tiea ha thepa-bonyane deformation tlas'a mojaro, ho e-na le matla a phahameng.Bakeng sa static elastic deformation, liminerale castings ka nkoa e le isotropic homogeneous thepa e mamelang molao oa Hooke.
The density and elastic modulus of mineral castings ke ka ho latellana 1/3 ea tsa tšepe e entsoeng ka tšepe.Kaha li-mineral castings le li-cast irons li na le boima bo tšoanang bo khethehileng, tlas'a boima bo lekanang, ho tiea ha tšepe le li-mineral castings ho tšoana ntle le ho nahana ka tšusumetso ea sebopeho.Maemong a mangata, botenya ba marako a marako a liminerale hangata ke makhetlo a 3 ho feta a tšepe, 'me moralo ona o ke ke oa baka mathata leha e le afe ho latela thepa ea mochine oa sehlahisoa kapa ho lahla.Mehaho ea liminerale e loketse ho sebetsa libakeng tse tsitsitseng tse tsamaisang khatello (mohlala, libethe, litšepe, litšiea) 'me ha lia lokela ho ba liforeimi tse nang le mabota a masesaane le/kapa tse nyenyane (mohlala, litafole, liphalete, lintho tse fetolang lithulusi, makareche, litšehetsi tsa spindle).Boima ba likarolo tsa meralo hangata bo lekantsoe ke lisebelisoa tsa baetsi ba liminerale, mme lihlahisoa tsa ho lahla liminerale ka holimo ho lithane tse 15 hangata ha li fumanehe.
2. Litšobotsi tse matla
Ha lebelo la ho potoloha le / kapa ho potlakisa shaft, ho bohlokoa le ho feta ts'ebetso e matla ea mochini.Ho beha maemo ka potlako, ho nkela lisebelisoa ka potlako, le lijo tse lebelo le holimo li tsoela pele ho matlafatsa molumo oa mochini le ho hlasimolla ho matla ha likarolo tsa sebopeho sa mochini.Ho phaella ho moralo oa likaroloana, ho kheloha, ho arola ka bongata, le ho satalla ho matla ha karolo li ameha haholo ke thepa ea damping ea thepa.
Tšebeliso ea li-mineral castings e fana ka tharollo e ntle mathateng ana.Hobane e monya ho sisinyeha ka makhetlo a 10 ho feta tšepe ea setso, e ka fokotsa boholo le maqhubu a tlhaho.
Ts'ebetsong ea machining joalo ka machining, e ka tlisa ho nepahala ho holimo, boleng bo holimo ba boleng, le bophelo bo bolelele ba lisebelisoa.Ka nako e ts'oanang, mabapi le tšusumetso ea lerata, li-mineral castings li boetse li sebetsa hantle ka ho bapisa le ho netefatsa litsi, li-transmission castings le lisebelisoa tsa lisebelisoa tse fapaneng bakeng sa lienjineri tse kholo le li-centrifuges.Ho ea ka tlhahlobo ea molumo oa tšusumetso, ho lahlela liminerale ho ka finyella phokotso ea lehae ea 20% boemong ba khatello ea molumo.
3. Thermal thepa
Litsebi li hakanya hore hoo e ka bang 80% ea ho kheloha ha lisebelisoa tsa mochine ho bakoa ke liphello tsa mocheso.Litšitiso tsa ts'ebetso tse kang mehloli ea mocheso ea ka hare kapa ea ka ntle, ho futhumatsa pele, ho fetola lisebelisoa tsa mosebetsi, joalo-joalo ke lisosa tsa ho senyeha ha mocheso.E le hore u khone ho khetha boitsebiso bo molemo ka ho fetisisa, ho hlokahala ho hlakisa litlhoko tsa thepa.Mocheso o phahameng o khethehileng le mocheso o tlase oa mocheso o lumella liminerale hore li be le inertia e ntle ea mocheso ho litšusumetso tsa nakoana tsa mocheso (joalo ka ho fetola lisebelisoa tsa mosebetsi) le ho fetoha ha mocheso oa tikoloho.Haeba ho hlokahala ho futhumatsa ka potlako joaloka bethe ea tšepe kapa mocheso oa bethe o thibetsoe, lisebelisoa tsa ho futhumatsa kapa tse pholileng li ka lahleloa ka ho toba ka har'a liminerale ho laola mocheso.Ho sebelisa mofuta ona oa sesebelisoa sa matšeliso a mocheso ho ka fokotsa ho senyeha ho bakoang ke tšusumetso ea mocheso, e thusang ho ntlafatsa ho nepahala ka litšenyehelo tse utloahalang.
II.Litlhoko tsa ts'ebetso le tsa sebopeho
Botšepehi ke tšobotsi e khethollang e khethollang li-mineral castings le lisebelisoa tse ling.Mocheso o phahameng ka ho fetisisa oa ho lahla liminerale ke 45 ° C, 'me hammoho le li-molds tse nepahetseng haholo le lisebelisoa, likarolo le li-mineral castings li ka kopanngoa hammoho.
Mekhoa e tsoetseng pele ea ho lahla hape e ka sebelisoa likheong tsa ho lahlela liminerale, e leng se bakang hore ho behoe libaka tse nepahetseng hantle le tsa seporo tse sa hlokeng ho etsoa ka mechine.Joalo ka lisebelisoa tse ling tsa motheo, li-mineral castings li ipapisitse le melao e ikhethileng ea moralo.Botenya ba lebota, lisebelisoa tse jarang meroalo, ho kenya likhopo, mekhoa ea ho kenya le ho theola kaofela li fapane le lisebelisoa tse ling ho isa bohōleng bo itseng, 'me li hloka ho nahanoa esale pele nakong ea moralo.
III.Litlhoko tsa litšenyehelo
Le hoja ho le bohlokoa ho nahana ka pono ea tekheniki, katleho ea litšenyehelo e ntse e tsoela pele ho bontša bohlokoa ba eona.Ho sebelisa li-mineral castings ho lumella baenjiniere ho boloka litšenyehelo tse kholo tsa tlhahiso le ts'ebetso.Ntle le ho boloka litšenyehelo tsa mochini, ho lahlela, ho kopanya ho qetela, le ho eketseha ha litšenyehelo tsa thepa (ho boloka thepa le lipalangoang) kaofela li fokotsehile ka nepo.Ha ho nahanoa ka ts'ebetso ea boemo bo phahameng ba ho hlahisa liminerale, e lokela ho nkoa e le morero o feletseng.Ha e le hantle, hoa utloahala ho etsa papiso ea theko ha setsi se kenngoa kapa se kentsoe pele.Litsenyehelo tse batlang li le holimo ke litšenyehelo tsa liforomo tsa liminerale le lisebelisoa tsa lisebelisoa, empa litšenyehelo tsena li ka fokotsoa ka tšebeliso ea nako e telele (500-1000 likotoana / hlobo ea tšepe), 'me tšebeliso ea selemo e ka ba likotoana tse 10-15.
IV.Boholo ba tšebeliso
E le thepa ea meralo, li-mineral castings li lula li nkela thepa ea moetlo sebaka, 'me senotlolo sa nts'etsopele ea eona e potlakileng ke ho lahla liminerale, hlobo le meaho e tsitsitseng ea maqhama.Hona joale, li-mineral castings li 'nile tsa sebelisoa haholo masimong a mangata a lisebelisoa tsa mochine tse kang mechine ea ho sila le mechine e potlakileng haholo.Baetsi ba mochini o silang e bile bo-pula-maliboho lefapheng la lisebelisoa tsa mochini ba sebelisang liminerale bakeng sa libethe tsa mochini.Ka mohlala, lik'hamphani tse tummeng lefatšeng ka bophara tse kang ABA z & b, Bahmler, Jung, Mikrosa, Schaudt, Stude, joalo-joalo li 'nile tsa rua molemo ka ho fokotsa mocheso, mocheso oa mocheso le botšepehi ba li-mineral castings ho fumana ho nepahala ho phahameng le boleng bo phahameng ba holim'a ts'ebetso ea ho sila. .
Ka meroalo e matla e ntseng e eketseha, liminerale le tsona li ntse li ratoa haholo ke lik'hamphani tse etelletseng pele lefatšeng lefapheng la lisila tsa lisebelisoa.Bethe ea ho lahla liminerale e na le ho tiea ho hoholo 'me e khona ho felisa matla a bakoang ke ho potlakisa koloi ea mola.Ka nako e ts'oanang, motsoako oa manyolo oa ts'ebetso e ntle ea ho monya ha vibrate le enjene ea mela e ka ntlafatsa haholo boleng ba bokaholimo ba sesebelisoa le bophelo ba ts'ebeletso ea lebili le silang.
Nako ea poso: Jan-18-2022