Lintlha tse susumetsang tsa 500MPa Kereiti VN Microalloyed Properties e matla ea tšepe ea tšepe

Phello ea dikahare tsa naetrojene mefuteng ea mechini ea 500MPa grade VN e sebelisitsoeng ka tšepe e matla haholo e ile ea ithutoa ka liteko tsa tlhahiso. Liphetho li bonts'itse hore dikahare tsa naetrojene li eketsehile ho tloha ho 81PPM ho isa ho 269PPM, boholo ba lijo-thollo tsa mekoallo ea tšepe ha boa fetoha haholo, 'me matla a chai a mekoallo ea tšepe a eketsehile ho tloha 526MPa ho isa 607MPa. Matla a kotulo a eketsehile ka 15.4%; matla a tensile a eketsehile ho tloha ho 678MPa ho ea ho 738MPa, 'me matla a tensile a eketsehile ka 8.8%; karolelano ea lihlahisoa tsa matla e fokotsehile ho tloha ho 1.29 ho isa ho 1.22. Matla a matlafatsang a naetrojene ea VN e sebelisang matla a tšepe e matlafatsang haholo-holo e matlafatsa pula, 'me ho matlafatsa pula ke lona lebaka le leholo la ho fokotseha ha sekhahla sa lihlahisoa tsa matla a VN tšepe.

Selelekela

Ka Pherekhong 2012, Lekala la Ntlo le Nts'etsopele ea Metseng ea Mahaeng le Lekala la Liindasteri le Theknoloji ea Boitsebiso ka kopanelo ba phatlalalitse tokomane, ba sisinya tataiso mabapi le ho akofisa ts'ebeliso ea mekoallo e matla ea tšepe: bofelong ba 2015, tlhahiso ea phahameng- mekoallo ea tšepe e matla e bile 80% ea kakaretso ea lihlahisoa tsa marabele. Bakeng sa meaho e meholo e phahameng le meaho e meholo ea sechaba, 500MPa e ratoa haholo ke Kereiti. Ka litlhoko tsa kaho ea moruo oa naha ea heso, tlhokeho ea mekoallo e matla ea tšepe ea 500MPa mehahong ea kaho e ntse e eketseha. Ka lebaka la lebelo le potlakileng la tlhahiso ea mekoallo ea tšepe le mocheso o phahameng o phoroselang, mocheso oa ho qetela o phallang hangata o kaholimo ho 1000 ℃. Litšobotsi tsa eona tsa mahlale li tiisa hore moralo oa motsoako oa mekoallo ea tšepe o loketse ts'ebeliso ea vanadium microalloying technology [1]. Keketseho ea naetrojene ke ho fihlela vanadium. Mokhoa o ka sehloohong oa ho matlafatsa mekoallo ea tšepe e sebetsang e thusa ho fokotsa bongata ba vanadium le ho boloka lisebelisoa tsa vanadium [2-4]. Mahlale a morao-rao a VN a sebelisitsoe haholo joalo ka theknoloji e tloaelehileng ea tlhahiso bakeng sa nts'etsopele ea mekoallo ea tšepe e matlafatsang lapeng le kantle ho naha. Palo e kholo ea lithuto li bonts'itse [1-9] hore theknoloji ea VN microalloying e its'etleha haholo hodima nitrogen e eketsehang ho ts'ehetsa pula ea vanadium ka sebopeho sa vanadium carbide, vanadium nitride kapa vanadium carbonitride, e etsang likaroloana tse ntle tse qhalakantsoeng tsa mokhahlelo oa bobeli ho hlahisa matla a matla a matlafatsang pula Ho eketsa matla a tšepe. Leha ho le joalo, keketseho e fetelletseng ea naetrojene e tla baka litšitiso tse ling tsa ts'ebetso ea mekoallo ea tšepe, haholoholo ts'ebetso ea litšisinyeho tsa litšepe tsa bareng ea tšepe. Phello ea dikahare tsa naetrojene ho litšobotsi tsa mochini oa li-bar tsa tšepe tsa 500MPa VN li ithutoa ka liteko tsa tlhahiso. E hlahlobile mochini o matlafatsang oa naetrojene ho li-tšepe tsa tšepe tsa VN tse sa sebetseng le tšusumetso ea naetrojene ho matla le karo-karolelano ea mekoallo ea tšepe ea VN, e leng nts'etsopele ea mekoallo e matla ea litšisinyeho tsa tšepe ea VN.

Fana ka motheo oa tlhahiso.

Lisebelisoa tsa liteko le mekhoa

Bakeng sa ho nts'etsapele mekoallo ea tšepe ea matla a phahameng a 500MPa e nang le ts'ebetso e tsitsitseng, semela sa k'hamphani ea tšepe se qhibilihisang mefuta e meraro ea litšepe tsa VN tse nang le naetrojene e fapaneng, 'me se sebelisitse ts'ebetso e ts'oanang ea tlhahiso ea tlhaho (ho futhumatsa ha tlhaho kamora ho sotha) ho leka tlhahiso tsa mekoallo tšepe 500MPa sehlopheng. Lisebelisoa tse tharo li bitsoa 1 #, 2 #, 3 #, mme likarolo tsa tsona tsa mantlha tsa lik'hemik'hale li bonts'itsoe ho Tafole ea 1.

Ho hloekisa mefuta e meraro ea tšepe e nang le naetrojene e fapaneng 'me e ntse e lahleloa ka har'a li-billet ka litlhaloso tsa 150mm × 150mm × 6000mm, e li romella ho semela sa k'hamphani ea sehlopha ho kenella ka har'a mekoallo ea tšepe ka litlhaloso tsa Φ25mm, le ho otlolla disampole tsa bareng tsa tšepe tsa 1 # , 2 #, le 3 # Tekong, matla a kotulo le matla a ho tenyetseha a li-steels tse tharo a ile a lekoa ka ho latellana, karolelano ea tlhahiso ea matla ea 1 #, 2 #, le 3 # mekoallo ea tšepe e baliloe, mme sebopeho sa metallographic sa ho ile ha bonoa litšepe tse tharo.

Ho ea ka liphetho tsa liteko tsa tensile tsa 1 #, 2 #, le 3 # tšepe mekoallo, mothinya o bontšoa ho Setšoantšo sa 1. Mothinya ho Setšoantšo sa 1 o bonts'a hore ha bongata ba naetrojene bo eketseha, matla a chai le matla a tensile a mekoallo ea tšepe eketseha ka tatellano. Matla a lihlahisoa a 1 # tšepe bareng ke 526MPa le matla a ho tensile ke 678MPa; matla a lihlahisoa a 2 # tšepe bareng ke 553MPa le matla a ho tensile ke 698MPa; matla a lihlahisoa a 3 # tšepe bareng ke 607MPa mme matla a tensile ke 738MPa. Likahare tsa naetrojene li eketsehile ho tloha ho 81PPM ho isa ho 269PPM, matla a chai a mekoallo ea tšepe a eketsehile ho tloha 526MPa ho isa 607MPa, keketseho ea 81MPa, le matla a chai a eketsehile ka 15.4%; ka nako e ts'oanang, matla a tensile a eketsehile ho tloha 678MPa ho isa 738MPa, ka keketseho ea 60MPa, mme keketseho ea matla a tensile e ne e le 8.8%.

Ho latela matla a kotulo le boleng ba matla a tensile a 1 #, 2 #, le 3 # mekoallo ea tšepe, likhakanyo tsa matla a lihlahisoa tse tharo ka ho latellana li baliloe ebe li huleloa ka mothinya o bontšitsoeng ho Setšoantšo sa 2. Mothinya ho Setšoantšo sa 2 e bontša hore ha sekhahla sa naetrojene se eketseha, karolelano ea matla le chai ea mekoallo ea tšepe e fokotseha ka tatellano. Har'a tsona, lipalo tsa lihlahisoa tsa matla a 1 #, 2 #, le 3 # tšepe ke 1.29, 1.26 le 1.22 ka tatellano.

Kameho ea naetrojene ka boholo ba lijo-thollo tsa mekoallo ea tšepe

Setšoantšo sa 3 se bonts'a sebopeho sa tšepe sa metallographic sa 1 #, 2 #, le 3 # mekoallo ea tšepe. Tlhahisoleseling e qaqileng ea li-microstructures tse tharo tsa metallographic e bonts'oa ho Tafole ea 2. Tafole ea 2 e thathamisa sebopeho sa karolo le sebopeho sa lijo-thollo tsa 1 #, 2 #, 3 # mekoallo ea tšepe. Meaho e meraro ea tšepe ke ferrite + pearlite, 'me 1 # steel bar ferrite lijo-thollo boholo e ka ba 9 -9.5 sehlopheng, 2 # rebar ferrite lijo-thollo boholo ke ka 9.5 sehlopheng, 3 # rebar ferrite lijo-thollo boholo ke ka 9-9.5 sehlopheng. Litaba tse ho Tafole ea 2 li bonts'a hore ka keketseho ea dikahare tsa naetrojene, boholo ba lijo-thollo tsa bareng ea tšepe ha bo fetohe haholo, kapa hore keketseho ea naetrojene ha e na tšusumetso e kholo mohahong o monyane oa tšepe ea tšepe ea VN.

Tlhatlhobo le puisano

Tlhatlhobo ea mochini o matlafatsang oa naetrojene ho 500MPa grade VN tšepe e sa sebetsoeng

Liphetho tsa liteko ho sengolo sena li bonts'a hore naetrojene ea 500MPa grade VN ea ts'ebeliso ea tšepe e nyolohile ho tloha ho 81PPM ho isa 269PPM, mme boholo ba lithollo tsa mekoallo ea tšepe bo pota 9-9.5. Ka mantsoe a mang, keketseho ea naetrojene ha e na phello e hlakileng sebopehong sa mekoallo ea tšepe ea VN. Ka nako e ts'oanang, matla a kotulo le matla a tensile a mekoallo ea tšepe a eketsehile ka likhato tse fapaneng, 'me matla a lihlahisoa a eketseha ka 81MPa le matla a tensile a eketsehang ka 60MPa. Hajoale, likhopolo tse matlafatsang tsa thepa ea tšepe li kenyelletsa tharollo e tiileng ea tharollo, ho matlafatsa lithollo, ho matlafatsa phetoho ea mohato le ho matlafatsa mokhahlelo oa bobeli. Ho hlakile hore liphetho tsa liteko sengoliloeng sena ha li kenyeletse phello ea matlafatso ea lijo-thollo tse ntle, ha tharollo e tiileng e matlafatsa le phetoho ea mekhahlelo. mohato. Palo e kholo ea lithuto le litloaelo li bonts'itse hore naetrojene e hlophisoa ke vanadium ho li-steels tse nang le li-microadium tse sebelisoang ho etsa vanadium nitride Kapa lihlahisoa tsa karolo ea bobeli tse kang vanadium carbonitride, likaroloana tsa karolo ea bobeli tse tšepe li eketsa matla a tšepe ka mochini o sebelisanang le phokotso ea ho sesa, ke hore, matla a matlafatsang pula.

Liphuputso tse sebetsang li bontšitse hore naetrojene e eketsehang e na le molemo moeeng oa vanadium. Ka mantsoe a mang, naetrojene e khothalletsa pula ea vanadium mme e eketsa karolo ea molumo oa likaroloana tsa karolo ea bobeli. Liphetho tse sa fetoheng tsa lipatlisiso li bontša hore matla a tšepe a lekana le karolo ea bobeli ea karoloana ea bophahamo ba karolo ea halofo. Ka hona, ha likahare tsa vanadium li lekane, keketseho ea naetrojene ea tšepe ea VN e sa sebetsoang ke ha e le hantle Karolo ea bophahamo ba likaroloana tsa karolo ea bobeli (vanadium nitride, vanadium carbonitride) ka hara tšepe e ea eketseha, e le hore matla a matlafatso a pula a matlafale. Liphetho tsa liteko pampiring ena li bonts'a hore ka keketseho ea dikahare tsa naetrojene, matla a kotulo le matla a tensile a li-bar tsa tšepe tsa 500MPa grade VN li eketseha ka tatellano. Ho hlakile hore liphetho tsa liteko tse pampiring ena li tsamaellana le liphetho tsa lithuto tsa thuto tse amanang.

Ho hlahlojoa ha tšusumetso ea naetrojene karolelong ea lihlahisoa tsa matla a 500MPa grade VN mekoallo ea tšepe e sa sebetseng

Liphetho tsa liteko pampiring ena li bonts'a hore ka keketseho ea dikahare tsa naetrojene, matla a kotulo le matla a tensile a mekoallo ea tšepe ea VN e sa sebetseng ha e eketsehe ka karolo e tšoanang. Keketseho ea matla a kotulo ke 15.4%, mme keketseho ea matla a tensile ke 8.8%. Ke hobane keketseho ea matla a lihlahisoa e kholo ho feta keketseho ea matla a tensile, ketsahalo e makatsang ea hore karolelano ea lihlahisoa tsa matla a tšepe ea fokotseha.

Matla a lihlahisoa tsa lisebelisoa tsa tšepe le mochini o laolang microscopic oa matla a tensile ho hlakile hore o fapane. Tlhahiso e laoloa haholo-holo ke ho thella ho hoholo ha thepa, ha ho robeha ho laoloa haholo-holo ke ho qala le ho hasana ha li-microcrack tse fumanehang. . Ka hona, thuto ea lihlahisoa tse bonahalang e shebana haholo le boits'oaro ba lintho tse bonahalang, ha thuto ea ho robeha ha thepa e shebile haholo boits'oaro ba li-microcracks. Matla a lihlahisoa tsa tšepe a bua ka matla ha mohloli oa litšibollo ka har'a sesebelisoa o ts'oaroa mme palo e kholo ea li-dislocation tse ka tsamaisoang, tse etsang hore thepa e hlahise kapa e hlahise mofuta o itseng oa deformation ea polasetiki. Mechini e matlafatsang pula ea likaroloana tsa karolo ea bobeli ke mochini o sebelisanang lipakeng tsa likaroloana tsa karolo ea bobeli le phallo e suthelang. Mochini ona oa tšebelisano o arotsoe ka mokhoa oa ho seha le mochini oa Orowan, hore na ke oa ho poma kapa mochini oa Orowan, oa bobeli Pula ea likhechana tsa mohato e tla sitisa ho thella, ka hona e ntlafatsa haholo matla a kotulo ea tšepe. Mabapi le matla a tšepe ea tšepe, e amana haholo le ho theoa le ho hasoa ha li-microcracks ka tšepe. Ho theoa ha li-microcracks ho kenyelletsa tšitiso ea motsamao oa libaka tse nyane, tse tla sitisa ho theoa le ho hasana ha Katoloso ea li-microcracks, ka hona e ntlafatsa matla a tšepe a tšepe ho isa bohōleng bo itseng. Ka hona, ha lihlahisoa tsa tšepe li ntlafatsoa, ​​matla a eona a ho tenyetseha le 'ona a ntlafalitsoe ho isa bohōleng bo itseng.

Ho bonts'oa hore ha boholo ba mokhahlelo oa bobeli bo le nyane haholo, phello ea ho matlafatsa pula ho eketsa matla a lihlahisoa tsa tšepe e kholo ho feta phello ea ho eketsa matla a tšepe a tšepe. Liphetho tsa liteko sengolong sena li bonts'a hore tlatsetso ea ho matlafatsa pula ho matla a kotulo ke 81MPa, Boleng ba monehelo ba matla a matla ke 60MPa. Liphetho tsa pampiri ena li paka hore tlatsetso ea ho matlafatsa pula ho matla a chai e kholo ho feta ea matla a ho tenyetseha. Ntle le moo, le ha matla a tšepe le matla a tšepe a eketseha ho isa tekanyong e tšoanang, karolelano ea lihlahisoa tsa tšepe e tla fokotseha. Ka kakaretso, phello e matlafatsang ea pula ea likaroloana tsa karolo ea bobeli qetellong e tla fokotsa sekhahla sa chai ea tšepe. Ka hona, ka keketseho ea naetrojene, matla a pula a matlafatsang a bareng ea tšepe ea VN, e theola sekhahla sa lihlahisoa tsa matla a tšepe.

Leseli la sephetho sa lipatlisiso ho nts'etsopele ea matlafatso a litšisinyeho tsa lefatše tsa 500MPa

Liphethong tsa liteko tsa sengoloa sena, lintlha tsa naetrojene tsa li-bar tsa tšepe tsa 500MPa VN tse sebelisang tšepe ke 81PPM, 136PPM, 269PPM, 'me matla a tsamaellanang a tšepe ea bare le li-ratios ke 1.29, 1.26, 1.22, ke hore, matla le sehlahisoa sa lihlahisoa Mehala ea tšepe ea VN e sebelisitsoeng ka tšepe e fapana ho ea ka ha naetrojene e ntse e eketseha le ho fokotseha, tlhahlobo e qaqileng ea mabaka e se e entsoe. Hajoale, index ea mantlha ea ts'isinyeho ea litšepe tsa litšepe tse matla khahlanong le litšisinyeho tsa lefatše e hlokahala hore e be tlase ho 1.25. Ka hona, ho tsoa liphethong tsa lipatlisiso tsa sengoloa sena, bakeng sa nts'etsopele ea li-bar tsa tšepe tse matlafatsang litšisinyeho tsa tšepe tse matlafatsang matla a phahameng a matla a 500MPa, ho netefatsa hore index ea mantlha ea ts'isinyeho ea lefatše e matla Haeba karolelano ea lihlahisoa e tšoaneleha, naetrojene Likahare li lokela ho laoloa ka thata ho latela sebopeho sa lik'hemik'hale. Ho loketse haholo ho laola litaba tsa naetrojene kahare ho 130PPM.

fihlela qeto e

• 1) Ha bongata ba naetrojene bo ntse bo eketseha, boholo ba lijo-thollo ba VN bo sebelisang matla a maholo a tšepe ha bo fetohe haholo.
• 2) Matla a kotulo le matla a tensile a VN microalloyed li-bar tsa tšepe tse nang le matla a phahameng li eketseha ka keketseho ea naetrojene, empa karo-karolelano ea lihlahisoa tsa matla e fokotseha ka keketseho ea naetrojene.
• 3) Matla a matlafatsang a naetrojene ho VN li-bar tsa tšepe tse nang le matla a maholo haholo-holo li matlafatsa pula, 'me ho matlafatsa pula ke lona lebaka le ka sehloohong la phokotso ea lipalo tsa matla a lihlahisoa tsa tšepe tsa VN.
• 4) Bakeng sa nts'etsopele ea li-bar tsa tšepe tsa 500MPa VN tse sebelisang matla a phahameng a ts'isinyeho ea tšepe, litaba tsa naetrojene tse tšepe li lokela ho laoloa kahare ho 130PPM.

Ka kopo boloka mohloli le aterese ea sengoloa sena hore se hatisoe hape: Lintlha tse susumetsang tsa 500MPa Kereiti VN Microalloyed Properties e matla ea tšepe ea tšepe

Minghe Khamphani ea Die Casting li inehetse ho etsa le ho fana ka boleng bo phahameng le likarolo tse phahameng tsa ho lahla likarolo Thining-Wall Die Casting,Hot Chamber Die lahla,Cold Chamber shoa lahla), Tšebeletso e chitja (Die Casting Service,Cnc Machining,Ho Etsa Mofuta, Bokaholimo Phekolo) .Na tloaelo efe kapa efe ea Aluminium die die cast, magnesium kapa Zamak / zinc die casting le litlhoko tse ling tsa castings lia amoheleha ho ikopanya le rona

Tlas'a taolo ea ISO9001 le TS 16949, lits'ebetso tsohle li etsoa ka mechini e makholo ea li-die casting, mechini e 5-axis le lits'ebeletso tse ling, ho tloha ho li-blasters ho isa mechini ea ho hlatsoa ea Ultra Sonic. sehlopha sa baenjiniere ba nang le boiphihlelo, lisebelisoa le bahlahlobi ho etsa moralo oa moreki o phethahala.

Moetsi oa konteraka oa li-cast cast. Bokhoni bo kenyelletsa likarolo tse batang tsa aluminium die die likarolo tsa 0.15 lbs. ho isa ho li-6 lbs., Ho theha phetoho e potlakileng, le machining. Litšebeletso tse kenyellelitsoeng boleng li kenyelletsa ho bentsa, ho thothomela, ho qhekella, ho phatloha ha lithunya, ho penta, ho roala, ho roala, kopano le lisebelisoa. Lisebelisoa tse sebelisitsoeng le tsona li kenyelletsa lits'epe tse kopantsoeng tse kang 360, 380, 383 le 413.

Zinc e shoa ho lahla thuso ea moralo / lits'ebeletso tsa boenjineri tse tšoanang. Moetsi oa moetlo oa li-castings tsa zinc tse nepahetseng. Li-castings tse nyane, li-castings tse phahameng tsa khatello, li-cast cast tsa hlobo, li-castings tse tloaelehileng tsa hlobo, li-unit tsa die le li-cast cast tse ikemetseng le li-cast cast tse tiisitsoeng li ka etsoa. Li-castings li ka etsoa ka bolelele le bophara ho fihlela 24 ho. Ho +/- 0.0005 ho. Mamello.  

ISO 9001: Moetsi ea netefalitsoeng oa 2015 oa magnesium ea die die, Bokhoni bo kenyelletsa khatello e phahameng ea khatello ea magnesium die cast to 200 ton room & 3000 kamoreng e batang, moralo oa lithulusi, polishing, molding, machining, powder & liquid paint, QA e felletseng e nang le bokhoni ba CMM , kopano, ho paka le ho tsamaisa.

ITAF16949 e netefalitsoe. Ts'ebeletso e 'ngoe ea ho lahla e kenyeletsa ho lahla lichelete,ho lahla lehlabathe,Matla a khoheli, Lahlehileng bubble lahla,Ho ts'oaroa ha Centrifugal,lephaka lahla,Sa Feleng hlobo lahlaBokhoni bo kenyelletsa EDI, thuso ea boenjiniere, ho etsa mohlala o tiileng le ho sebetsoa ka bobeli.

Lahla Liindasteri Liphuputso tsa likarolo tsa likarolo tsa: Likoloi, libaesekele, lifofane, liletsa tsa 'mino, sesepa sa metsi, lisebelisoa tsa Optical, li-sensor, mehlala, lisebelisoa tsa elektroniki, masaka, lioache, mechini, lienjine, thepa ea ka tlung, mabenyane, mabenyane, telecom, mabone, lisebelisoa tsa bongaka, lisebelisoa tsa litšoantšo, Liroboto, Litšoantšo tse betliloeng, Lisebelisoa tsa molumo, Lisebelisoa tsa lipapali, Lithulusi, Lipapali le tse ling. 

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