Aluminium Bronze C61400 yog dab tsi
Aluminium bronze C61400 yog tooj liab -puag alloy nyob rau hauv uas txhuas yog tus tseem ceeb alloying ntxiv, sib npaug ntawm hlau thiab me me tswj cov nqi ntawm npib tsib xee thiab manganese. Cov tooj liab tawv- nplua nuj matrix ua ke nrog cov hlau- nplua nuj theem muab cov qib tsis tshua muaj kev sib xyaw ntawm cov khoom siv dag zog, seawater corrosion kuj thiab hnav tsis kam, uas ua rau nws xav tau siab -load thiab siab - coj cov khoom.
Vim tias cov khoom siv ua haujlwm- hardens es tsis txhob tig nkig, nws yog tsim ob qho tib si li wrought raj, phaj, bar thiab forgings thiab raws li cov khoom siv machined los ntawm kub- cov khoom ua haujlwm. Nws yog ib qho ntawm cov txheej txheem txhuas bronze qib rau seawater -cooled heat-transfer equipment and for pumps and valves in marine service.
Tshuaj muaj pes tsawg leeg
| Element | Min,% | Max,% | Muaj nuj nqi |
|---|---|---|---|
| Cu | Tshuav | Tseem tshuav | Base hlau |
| Al | 6.0 | 8.5 | Lub ntsiab alloying keeb, oxide zaj duab xis |
| Fe | 1.5 | 3.5 | Lub zog thiab hnav tsis kam |
| Ni | - | 0.6 | Yeem, txhim kho corrosion kuj |
| Mn | - | 1.0 | Yeem, pab deoxidation |
| Zn | - | 0.50 | impurity |
| Pb | - | 0.02 | impurity |
| Sn | - | 0.20 | impurity |
| Si | - | 0.10 | impurity |
| Lwm yam impurities, tag nrho | - | 0.50 | Kev tswj hwm |
Aluminium yog lub caij uas tsim cov yeeb yaj kiab tiv thaiv; hlau refines tus qauv thiab ntxiv dag zog rau nws; Nickel yog xaiv tau thiab feem ntau txhim kho corrosion kuj. Kev tswj nruj ntawm tag nrho cov impurity yog dab tsi ua kom ductility thiab qaug zog tiv taus kwv yees.
Mechanical Properties los ntawm Temper
| Khoom | Chav tsev | O60 ua tsaug | H04 zog |
|---|---|---|---|
| Tensile zog | MPa (ksi) | 450 (65) | 655 (95) |
| Yield zog, 0.2% offset | MPa (ksi) | 140 (20) | 310 (45) |
| Elongation nyob rau hauv 50 mm | % | 40 | 15 |
| Hardness | HBW | 75 | 155 |
| Modulus ntawm elasticity | GPa | 115 | 115 |
| Lub zog qaug zog, thim rov qab khoov | MPa (ksi) | 130 (19) | 165 (24) |
| Machineability | % ntawm dawb- txiav tooj dag | 30 | 30 |
Lub zog yog teem los ntawm temper es tsis yog los ntawm chemistry, yog li kev yuav khoom yuav tsum ib txwm hais tus npau taws. Cov mob annealed muab txog 450 MPa tensile nrog 40% elongation rau kev ua haujlwm; qhov nyuaj-txoj kev mob siab txog 655 MPa tensile thiab 155 HBW rau cov khoom hnav. Cov txiaj ntsig saum toj no yuav tsum muaj cov hlau sib txawv lossis cov khoom sib txawv thiab yuav tsum tau kuaj xyuas qhov kub thiab txias tau lees paub.
Vim li cas C61400 Resistant Corrosion thiab Hnav
Aluminium tsim cov yeeb yaj kiab oxide tuab uas hloov kho thaum nws raug puas tsuaj, uas ua rau pitting thiab kev ntxhov siab -corrosion tawg hauv dej hiav txwv thiab hauv ntau cov kua qaub.
Hlau ntxiv ntawm 1.5 mus rau 3.5% kho cov microstructure thiab nce kev tiv thaiv rau impingement thiab yaig, ib qho kev txiav txim siab rau lub cev twj tso kua mis thiab valve trim.
Kev ua haujlwm nyuaj yog nrawm, yog li qhov nyuaj thiab lub zog nce nrog kev txo qis thiab zawv zawg -lub neej nyob deb tshaj qhov tsis muaj tooj liab.
Corrosion qaug zog kev ua tau zoo nyob rau hauv cov dej hiav txwv ntws tau zoo dua li cov tin bronze, uas tseem ceeb rau cov raj hauv siab - ceev condensers.
Thermal thiab hluav taws xob conductivity tseem txaus rau cov cua sov-dissipation thiab tam sim no- nqa qhov chaw, txawm hais tias lawv qis dua cov tooj liab ntshiab.
Kev tsim khoom thiab cov ntawv thov
Melting nrog tag nrho deoxidation ua kom muaj cov khoom sib xws. Billets yog kub dov los yog forged, thiab cov khoom kawg yog teem los ntawm kev ua hauj lwm txias los yog kev kho cua sov, nrog kub ua hauj lwm nyob rau hauv ib tug nruab nrab kub ntau yam kom tsis txhob lub embrittling theem uas tsim thaum lub alloy yog overheated.
Marine engineering: kiv cua, li qub, lub cev twj tso kua mis thiab dej hiav txwv -cov khoom siv tiv taus.
Aerospace thiab thauj: tsaws - iav bearings thiab siab - kub fasteners.
Cov cuab yeej hluav taws xob: cov khoom siv hluav taws xob thiab cov hluav taws xob hluav taws xob -breaker contacts.
Mechanical manufacturing: iav, bearing bushes thiab pwm inserts.
Thaum tshav kub kub-cov khoom siv hloov pauv: condenser thiab cua sov- cov raj xa dej, cov ntawv thiab cov baffles rau cov dej hiav txwv lossis dej hiav txwv.
Environmental systems: desulphurisation thiab kho dej khib nyiab kho vajtse.
Tube feem ntau tau teev tseg rau ASTM B111 nrog rau ASME SB111 sib npaug, thiab cov phaj wrought, ntawv, bar thiab forging cov ntaub ntawv tau muab rau UNS C61400 chemistry nrog cov khoom kub siab pom zoo ntawm kev txiav txim. Sab nraud txoj kab uas hla ntawm ob peb millimeters mus rau ob peb puas millimeters, nrog phab ntsa thickness ntawm li 0.5 hli upwards raws li cov khoom daim ntawv.
Cov lus nug nquag
Q: Aluminium bronze C61400 yog dab tsi?
Nws yog tooj liab- puag alloy nrog 6.0 mus rau 8.5% txhuas, 1.5 mus rau 3.5% hlau, mus txog 0.6% npib tsib xee thiab mus txog 1.0% manganese, nrog zinc, lead, tin thiab silicon tuav raws li cov impurities tswj.
Q: C61400 muaj zog npaum li cas piv nrog lwm cov bronzes?
Annealed Tshuag yog nyob ze ntawm 450 MPa tensile nrog 20 % pov thawj kev ntxhov siab nyob ib ncig ntawm 140 MPa, thaum lub zog - kos npau taws mus txog 655 MPa tensile thiab 310 MPa pov thawj kev ntxhov siab, uas yog zoo tshaj cov qib tin bronze.
Q: Puas C61400 tiv thaiv seawater corrosion?
Yog lawm. Aluminium -nplua nuj oxide zaj duab xis tiv taus pitting thiab kev ntxhov siab- corrosion cracking nyob rau hauv seawater thiab dej brackish, thiab nws erosion kuj ua rau nws haum rau twj, li qub thiab condenser raj hauv marine dej.
Q: Puas yog C61400 yooj yim rau tshuab thiab vuam?
Machinability yog kwv yees li 30% ntawm cov dawb- txiav tooj dag, yog li cov cuab yeej carbide thiab cov khoom noj zoo tau qhia. Cov alloy welds thiab brazes nrog txuam muab tub lim, thiab post-weld kev kho cua sov yog siv nyob rau hauv tag nrho corrosion kuj ntawm weld cheeb tsam yuav tsum tau rov qab.
Q: Qhov txawv ntawm C61400 thiab npib tsib xee txhuas bronze yog dab tsi?
Nickel aluminium bronze qib muaj ntau ntau nickel thiab muaj zog thiab tiv taus ntau dua rau cov dej hiav txwv yaig, tab sis lawv raug nqi ntau dua thiab nyuaj rau kev tsim. C61400 yog qhov kev xaiv sib npaug rau lub luag haujlwm nruab nrab mus rau qhov hnyav ntawm tus nqi qis.
Q: Cov tempers twg muaj?
O60 annealed rau kev tsim thiab dabtsi yog khoov, thiab H04 nyuaj kos rau hnav thiab thauj khoom-cov kabmob, nrog rau nruab nrab tempers uas yuav tsum muaj kev sib xyaw ua ke ntawm lub zog thiab ductility.
