The Optimization Of Low-Alloy High-Strength Steel Welding Consumables Sebopeho
Tataiso ea ntlafatso ea sebopeho sa tšepe ea tšepe e nang le alloy e tlase ke ho hlahisa ferrite e ngata. Boithuto bo bonts'itse hore ferrite ea acicular e na le boholo ba lijo-thollo le botenya bo phahameng ba li-dislocation. Ha litaba tsa eona li le kholo ho feta 65% mme boholo ba lath e ka ba 1 μm, tšepe ea weld e ka ba le matla le bokhabane bo babatsehang.
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- C. Likahare tsa C ka kakaretso li laoloa ho 0.05% ho isa ho 0.10%, 'me khabone e lekanang e ka tlase ho 0.39. Mofuteng ona, lehlakoreng la slat ferrite le acicular ferrite le ka hlahisoa, 'me sebaka sa reheat sa weld se fetoloa ho ba ferrite e kholo ea equiaxed.
- Mong. Mn o na le litlamorao tse peli tse fapaneng ho ntlafatso ea tšepe ea weld le ho thatafala. Sehlahisoa se nepahetseng sa Mn se ka fumana acicular ferrite e eketsehileng. Leha ho le joalo, tlatsetso e fetelletseng ea Mn e tla etsa hore moeli oa lijo-thollo oa nuclei ea bainite o phahame ho feta sekhahla sa intragranular nucleation ea acicular ferrite, e tla eketsa thatafalo ea weld. Hangata litaba tsa Mn li laoloa ho 0.6 ho isa ho 1.8%.
- Kr. Ha likarolo tsa Cr tsa tšepe ea weld li eketseha, palo ea acicular ferrite ea eketseha, microstructure ea weld e hloekisoa, mme ferrite ea proeutectoid e sebakeng sa columnar le libaka tse mahoashe li ea fokotseha. Boima ba tšusumetso boa fokotseha ka keketseho ea litaba tsa Cu mme boa eketseha ka keketseho ea litaba tsa Cr. Litaba tsa Cr ka kakaretso ke 0.9 ho ea ho 1.0%.
- Ti. Mefuta ea likahare tsa Ti bakeng sa ho fumana motsoako o nepahetseng oa sebopeho le ts'ebetso ea ts'ebetso ke 0.02% ho isa ho 0.05%. Boithuto bo bonts'itse hore ha lintho tsa Ti ka tšepe ea weld li le 0.014% ho isa ho 0.048%, sebopeho sa weld ea poleiti ea Q235 se entsoe haholo ka ferrite e lekantsoeng le ferrite ea acicular. Ka keketseho ea litaba tsa Ti, acicular ferrite Keketseho ea litaba le ho fokotseha ha bolelele ho tla eketsa ho thatafala ha tšepe ea tšepe. Sena se bakoa ke sebopeho sa li-inclusions tsa TiO2 ha lintho tsa Ti tse tšepe li le holimo ho feta tsa Al, tse loketseng nucleation ea acicular ferrite.
- B. Liteko li bonts'a hore ha litaba tsa B li le lipakeng tsa 0.0032% le 0.0103%, ferrite ea acicular ea fokotseha ka keketseho ea litaba tsa B, 'me matla a tšusumetso a fokotsehile haholo. Sena se bakoa ke ho fokotseha ha mocheso oa eutectoid o bakoang ke B. Leha ho le joalo, haeba Ti e phahameng e eketsoa terata ea ho tjheseletsa le alkalinity e tlase e netefatsoa, mme ha karolelano ea boron ho naetrojene (B / N) ka tšepe ea tšepe e mefuta e fapaneng ea 0.6 ho ea ho 0.8, sebopeho sa linalete se ka ba molemo. Li-inclusions tse nang le li-oxide tse nang le li-ferrite tse nang le li-ferrite li ka fumana boleng bo phahameng ba tšusumetso bakeng sa tšepe ea weld; haeba B / N e phahame ho feta 0.8, ho thatafala ha tšusumetso ho tla fokotseha. Likahare tsa B ka kakaretso li laoloa kahare ho 0.003 ~ 0.006%.
- O. O ke karolo e sa hloekang e thibelang tšepe. Al, Mg le lisebelisoa tse ling tse matla tsa ho fokotsa khafetsa li kenyelletsoa tšepe ea tšepe ho theola le ho lokisa naetrojene, empa ho bonolo ho hlahisa polygonal AlN brittle inclusions, e senyang mocheso o tlase oa tšepe ea tšepe. Ho hlahisoa ho lingoliloeng hore ho eketsa palo e loketseng ea LiF mokokotlong oa ts'ebetso ho tla hlahisa Li3N le N sebakeng sa arc, ka hona ho fokotsa haholo litaba tsa N ka tšepe ea tšepe le ho fokotsa palo ea likotsi tse kotsi tsa AlN. Hape ho na le maikutlo a hore sebopeho sa V (C, N) mohato ka pula ea N le V se ka khothaletsa nucleation ea acicular ferrite. Ho boetse ho bontšitsoe lingoliloeng hore tlatsetso ea lipalo tse loketseng tsa Fe2O3, MnO2, jj. . Mokhatlo o hlophisitsoeng. Ka kakaretso ho lumeloa hore kahare ho moeli oa Al / O = 2, keketseho e nepahetseng ea karo-karolelano ea Al / O ka tšepe e tlaase ea tšepe e ka ts'ehetsa moloko oa inclusions tse ngata ka boholo ba 3 ho isa ho 0.45 μm, ho ntšetsa pele nucleation ea acicular ferrite, ka hona Toughness e ntle.
- S. S hape ke ntho e thibelang litšila tšepe, empa likaroloana tsa FeS tse nang le Mn le Cu li sebetsa hantle bakeng sa nucleation ea acicular ferrite.
Ntle le moo, taolo ea boholo le sebopeho sa inclusions le eona e bohlokoa haholo. Ka kakaretso ho lumeloa hore likaroloana tse chitja tse entsoeng ka MnS le mekhahlelo e meng ea amorphous e nang le boholo ba 0.5-0.8 μm mme lera le lesesaane la TiO holimo le molemo haholo bakeng sa acicular ferrite nucleation.
Ka kopo boloka mohloli le aterese ea sengoloa sena hore se hatisoe hape:The Optimization Of Low-Alloy High-Strength Steel Welding Consumables Sebopeho
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.
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