Phapang Pakeng tsa betloa ha 'me Rolling

Nako ea ho Hatisa: 06 / 21 2021 Mongoli: Mohlophisi oa Setsi Etela: 14487

phethola: Mokhoa oa ho sebetsana le khatello eo tšepe e sa koaeloang e fetang ka har'a meqolo e potolohang (libopeho tse fapaneng). Ka lebaka la ho hatelloa ha meqolo, sekhahla sa thepa se fokotsoe mme bolelele boa eketseha. Ona ke mokhoa o sebelisoang haholo oa tlhahiso ea tšepe. Tlhahiso ea lifaele, lipoleiti le lipeipi.

Ho ea ka motsamao oa sengoathoana se bilikang, mekhoa ea ho phethola e arotsoe ka: ho phikolosetsa nako e telele, ho phethola sefapano, le ho phethola.

Ts'ebetso ea bolelele ba nako e telele ke ts'ebetso eo tšepe e fetang lipakeng tsa meqolo e 'meli e potolohang ka mahlakore a fapaneng,' me phetoho ea polasetiki e ba teng lipakeng tsa bona.

Cross phikolosetsa: Tataiso fallela ea sengoathoana phuthoa mora deformation e lumellana le tataiso ea selekane moqolo.
Skew phikolosetsa: sengoathoana phikolosetsa susumelletsa ka spiral, 'me sengoathoana phikolosetsa le selekane moqolo ha ba na angle khethehileng.

Melemo ea Rolling

E ka senya sebopeho sa tšepe, ea hloekisa lijo-thollo tsa tšepe, 'me ea felisa liphoso tsa moaho o monyane, hore sebopeho sa tšepe se be motenya mme thepa ea mochini e ntlafatsoe. Ntlafatso ena e bonahala haholo tseleng e tsamaeang, hore tšepe e se hlole e le isotropic ho isa bohōleng bo itseng; bubble, mapetso le bohloeki bo entsoeng nakong ea ho betsa le tsona li ka ts'oaroa ka tlas'a mocheso o phahameng le khatello.

Bothata ba Rolling

Kamora ho phalla, li-inclusions tse seng tsa tšepe (haholo-holo li-sulfide le li-oxide, hammoho le li-silicates) kahare ho tšepe li hatelloa ka maqephe a masesaane, mme delamination (interlayer) ea hlaha. Delamination e mpefatsa thepa ea tšepe ka lehlakoreng la botenya, mme ho ka etsahala hore ho taboha ha libapali ho ka etsahala ha weld e fokotseha. Mofuta oa lehae o hlohlellelitsoeng ke "shrinkage" ea "weld" hangata o fihla makhetlo a 'maloa khatello ea ntlha ea kotulo, e kholo ho feta khatello e bakiloeng ke mojaro.
Ho imeloa kelellong ho bakoang ke pholileng e sa lekanang. Ho imeloa kelellong ke khatello ea maikutlo e ka hare e se nang matla a kantle. Likarolo tsa tšepe tse chesang tse chesang tse fapaneng tse nang le likhatello tse setseng. Ka kakaretso, boholo ba karolo ea karolo ea tšepe bo ba kholoanyane, khatello ea masalla e kholoanyane. Le ha khatello ea masalla e ikemetse, e ntse e na le tšusumetso e itseng ts'ebetsong ea setho sa tšepe tlasa ts'ebetso ea matla a kantle. Mohlala, e kanna ea ba le litlamorao tse mpe ho deformation, botsitso, ho hanela mokhathala, jj.
Lihlahisoa tsa tšepe tse chesang ho chesa ha ho bonolo ho li laola ho latela botenya le bophara ba bohale. Re tloaelane le katoloso ea mocheso le khutsufatso. Ho tloha tšimolohong, leha bolelele le botenya li ka ba maemong a holimo, ho tla ba le phapang e itseng e fosahetseng kamora ho phola ha ho qetela. Ha phapang e kholo e pharalla, botenya bo botenya, ts'ebetso e totobala haholoanyane. Ka hona, bakeng sa tšepe e boholo bo boholo, bophara ba lehlakore, botenya, bolelele, angle, le lehlakoreng la tšepe li ke ke tsa nepahala haholo.

Ho theha: Ke mokhoa sebetsa e sebelisang betloa ha mechine ho sebelisa khatello ea likheo tšepe ho hlahisa deformation polasetiki ho fumana forgings le itseng thepa phetha molao, dibopeho tse itseng le boholo bo, 'me e' ngoe ea likarolo tse peli tse kholo tsa betloa ha (betloa ha le tapa). Betloa ha ka felisa liphoso tse kang hlephileng e le-liheloe nakong tshebetso qhibiliha le optimize le microstructure. Ka nako e ts'oanang, ka lebaka la ho boloka methapo e felletseng ea phallo ea tšepe, thepa ea mochini oa tšoarelo hangata e betere ho feta ho lahla thepa e tšoanang. Bakeng sa likarolo tsa bohlokoa tsa mechini e amanang le mojaro o phahameng le maemo a boima a ho sebetsa, li-forgings li sebelisoa haholo ntle le libopeho tse bonolo tse ka phuthoang, likarolo kapa likarolo tse nang le litšepe.

Betloa ha ka arotsoe mahala betloa ha, shoa betloa ha, 'me koaloa shoela'ng betloa ha

Free betloa ha. Sebelisa tshusumetso kapa khatello ea ho deform tšepe pakeng tsa anvils holimo le tlaase (anvils) ho fumana bakeng sa forgings hlokahala, ho na le haholo-holo pukwanana betloa ha le phetha molao betloa ha.
Shoa betloa ha. Die betloa ha e arotsoe bulehileng shoa betloa ha le koetsoeng shoela betloa ha. Sesebelisoa sa tšepe se petelitsoe ebile se holofetse lefeng la bethe le sebopeho se itseng ho fumana tšoarelo. E ka aroloa ka lihlooho tse batang, moqolo o betloa, ho betloa ha radial le extrusion, jj. Ema.
Hobane ha ho na lebone le koetsoeng le koetsoeng le koetsoeng, sekhahla sa ts'ebeliso ea thepa se phahameng. Ho khonahala ho phethela ho ts'oareloa ho rarahaneng ka ts'ebetso e le 'ngoe kapa lits'ebetso tse' maloa. Hobane ha ho na khanya, sebaka se nang le matla sa ho betla se fokotsehile, mme mojaro o hlokahalang le ona oa fokotseha. Leha ho le joalo, hoa lokela ho hlokomeloa hore likheo li ke ke tsa thibeloa ka botlalo. Ka lebaka lena, molumo oa likheo o lokela ho laoloa ka thata, boemo bo lekanyelitsoeng ba ho betloa hoa shoa mme tekanyo ea litheko e lokela ho laoloa, e le ho fokotsa ho tsofala ha ho betloa hoa shoa.

Likaroloana:

Ha ho bapisoa le castings, betloa ha tšepe ka ntlafatsa sebopeho lona le thepa phetha molao ka mor'a betloa ha. Kamora hore mochini oa ho betla o holofale ke mokhoa oa ho betla ka lebaka la ho fetoha le ho ts'oaroa hape hoa tšepe, li-dendrite tsa pele tse mahoashe le lithollo tsa kholomo li fetoha sebopeho se lekantsoeng se nang le lithollo le boholo ba junifomo, e leng se etsang khethollo ea mantlha ka har'a ingot ea tšepe, The compaction le tjheseletsa looseness, pores, slag inclusions, joalo-joalo, ho etsa sebopeho ho feta diseke ee le ho ntlafatsa plasticity le thepa phetha molao tsa tšepe.

Thepa ea mochini oa castings e tlase ho feta thepa ea mochini oa tšoarelo ea thepa e ts'oanang. Ntle le moo, ts'ebetso ea ho betla e ka netefatsa ho tsoela pele ha sebopeho sa tšepe, ho boloka sebopeho sa faeba sa ho theha se tsamaellanang le sebopeho sa ho betloa, 'me tšepe e phethehile, e ka netefatsang hore likarolo li na le thepa e ntle ea mochini ebile e telele bophelo tšebeletso. Sebetsa ka ho nepahetseng shoa betloa ha le batang extrusion sebelisoa. Metsoako e hlahisoang ke lits'ebetso tse joalo ka, extrusion e futhumetseng, jj ha e tšoane le tse ling.

Bapisa Of betloa ha le Rolling

Phapang ea thepa ea axial le radial mechanical ea forgings e nyane ho feta ea lihlahisoa tse phuthetsoeng. Ka mantsoe a mang, isotropy ea forgings e phahame haholo ho feta ea lihlahisoa tse phuthetsoeng. Ka hona, bophelo ba tšoarelo bo phahame haholo ho feta ba lihlahisoa tse phuthetsoeng. Likotoana tse phuthetsoeng. Setšoantšo se latelang se bonts'a setšoantšo sa metallographic sa morphology ea eutectic carbides ka litsela tse fapaneng tsa leqephe la Cr12MoV.
Mabapi le boemo ba phetoho, boemo ba phetoho ea ho betla bo boholo ho feta ba ho qhekella, ke ho re, phello ea ho roba carbide ea eutectic ka ho betla e betere ho feta ea ho thella.
Mabapi le litšenyehelo tsa ho sebetsa, litheko tsa ho betla li holimo haholo ho feta litšenyehelo tsa ho thella. Bakeng sa likarolo tse ling tsa bohlokoa, mesebetsi ea matsoho e nang le mejaro e meholo kapa litlamorao, le mesebetsi ea matsoho e nang le libopeho tse rarahaneng kapa litlhoko tse thata haholo, ho lokela ho sebelisoa. Ts'ebetso ea ts'ebetso.
Ts'oaetso li na le mela e felletseng ea phallo ea tšepe. Kamora ho sesa, mechini e senya bots'epehi ba likhoele tsa phallo ea tšepe, e khutsufatsang bophelo ba sehlahisoa. Setšoantšo se latelang se bontša mela e phallang ea tšepe ea ho betla, ho sebetsa ka machining le ho betla mesebetsi ea mosebetsi.

Ka kopo boloka mohloli le aterese ea sengoloa sena hore se hatisoe hape: Phapang Pakeng tsa betloa ha 'me Rolling

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