Vim li cas T6 Temper Matters
Lub npe T6 piav qhia txog ib ntus, tsis yog ib qho alloy. Cov khoom siv yog tov thaum tshav kub kub kho, quenched, ces artificially hnub nyoog ntawm ib tug siab kub kom txog rau thaum lub alloying ntsiab precipitate raws li zoo hais uas thaiv plam. Ob leeg 6061 thiab 7075 teb rau qhov sib lawv liag, uas yog vim li cas lawv thiaj li feem ntau piv rau tib lub siab tsis zoo li cov khoom nyoos.
Temper tswj hloov cov lej uas tus tsim qauv tuaj yeem tso siab rau. Ib feem 6061 nyob rau hauv T4 mob yog formable tab sis deb softer tshaj tib seem nyob rau hauv T6, thiab ib tug 7075 ib feem nyob rau hauv T6 yog roughly ob npaug li muaj zog nyob rau hauv yield raws li nws annealed xeev. Qhov no kuj yog vim li cas muaj kev ntxhov siab-relieved variant xws li T651 tshwm sim: nws muab cov khoom T6 theem thaum txo cov kev ntxhov siab sab hauv uas ua rau cov phaj nyias ua kom tsis sib haum thaum lub tshuab ua haujlwm.
6061-T6 hauv Kev Xyaum
6061-T6 yog kev ua haujlwm ntawm kev ua haujlwm dav dav. Nws qhov tsawg kawg nkaus lub zog ntawm 276 MPa thiab tensile zog ntawm 310 MPa, ua ke nrog ib tug Brinell hardness nyob ze 95 thiab ib tug ceev ntawm 2.70 g / cm3, npog ib tug dav band ntawm structural lub luag hauj lwm yam tsis muaj tshwj xeeb tuav.
Cov machinability zoo heev nrog kev kwv yees nti tsim thiab cov cuab yeej siv qis
Yooj yim welded los ntawm TIG thiab MIG, nrog cov cuab yeej rov qab tuaj yeem ua tiav los ntawm kev tshaj tawm -weld aging
Zoo corrosion kuj nyob rau hauv av noo, industrial thiab marine huab cua, pab los ntawm tus kheej - kho oxide zaj duab xis
Uniform anodizing teb, nrog rau cov xim anodizing rau pom qhov chaw
Elastic modulus ntawm 68.9 GPa, yog li nruj -tsav qauv tsim yuav tsum tau seem geometry es tsis yog alloy hloov khoom dua tshiab
Kev siv ib txwm muaj xws li tshuab thav duab, brackets, manifolds, tsheb thauj khoom thiab cov khoom siv trailer, marine fittings, tsheb kauj vab thav duab thiab tsis yog -cov dav hlau tseem ceeb.
7075-T6 hauv Kev Xyaum
7075-T6 lag luam fabricability rau lub zog. Nws qhov tsawg kawg nkaus yield zog ntawm 503 MPa thiab tensile zog ntawm 572 MPa, ntawm ib tug Brinell hardness ntawm txog 150, muab tso rau hauv tib yam li ntau yam steels ntawm ib feem peb ntawm qhov hnyav.
Lub zog siab tshaj plaws - rau - qhov hnyav piv ntawm cov khoom siv wrought
Muaj zog qaug zog ua haujlwm rau cyclically loaded qhov chaw
Zoo machinability txheeb ze rau nws hardness, nrog zoo nto finishes achievable
Kev tiv thaiv corrosion qis dua 6061, yog li anodizing lossis txheej yog nquag teev
Tsis pom zoo rau fusion vuam; riveting, bolting lossis bonding yog cov txheej txheem kev koom ua ke
Nws lub tsev ntuj tsim yog aerospace qauv, siab - kev nyuaj siab tooling, pwm, gears, shafts, pob zeb nce toj hardware thiab kev ua tau zoo-cov khoom tseem ceeb uas qhov hnyav txuag tau txais txiaj ntsig tus nqi hwm.
Sab-los ntawm-Side Comparison
| Kev ntsuas | 6061-T6 | 7075-T6 |
|---|---|---|
| Lub ntsiab alloying ntsiab | Mg, Si | Zn, Cu, Mg |
| Yield zog, 0.2% offset | 276 MPa (40 ksi) | 503 MPa (73 ksi) |
| Lub zog tensile | 310 MPa (45 ksi) | 572 MPa (83 ksi) |
| Hardness, Brinell | 95 | 150 |
| Elastic modulus | 68.9 gvp | 71.7 gvp |
| Melting ntau | 582-652 C | 477-635 C |
| Corrosion kuj | Zoo | Nruab nrab |
| Weldability | Zoo heev | Hmoov tsis zoo, tsis pom zoo |
| Machineability | Zoo heev | Zoo |
| Anodizing teb | Zoo, coj xim zoo | Ncaj ncees, txheej zoo yog rhiab dua |
| Tus nqi txheeb ze | Lub hauv paus | Feem ntau yog ib lub hlis twg lossis ntau dua |
| Yam luag hauj lwm | General structural thiab fabrication ua hauj lwm | Aerospace thiab siab -load Cheebtsam |
Nqi, Machining thiab Lead Time
Ob txoj cai ua kom xaiv cov khoom ncaj ncees. Thawj yog tias cov khoom pheej yig dua tsuas yog yeej yog tias tus tsim tsis xav tau qhov muaj zog dua: ntxiv 25% rau cov khoom siv tus nqi yog qhov tsis muaj txiaj ntsig thaum lub thickness 6061 seem ua haujlwm zoo ib yam, thiab nws yog kev lag luam cuav thaum seem ntxiv yuav siv sij hawm ntau dua machining dua li cov nqi ntawm cov alloy.
Qhov thib ob yog tias temper thiab Tshuag daim ntawv tswj lub sij hawm ua tus thawj coj. 6061-T6 muaj nyob rau hauv yuav luag txhua qhov ntsuas, qhov dav thiab cov duab, yog li qhov kev hloov ntawm phaj thickness tsis tshua muaj kev ncua sij hawm ib tug tsim . 7075-T6 yog concentrated nyob rau hauv ib tug nqaim ntau gauges thiab yog feem ntau muab tawm tsam mills yam tsawg kawg nkaus, tshwj xeeb tshaj yog nyob rau hauv hnyav phaj, yog li nws yuav tsum tau txiav txim thaum ntxov nyob rau hauv lub project. Kev ntxhov siab -relieved 7075-T651 phaj yuav tsum tau teev tseg thaum lub tiav lawm yuav tsum tuav flatness tom qab machining, vim T6 zoo tib yam phaj yuav txav tau raws li cov khoom raug tshem tawm.
Rau cov welded sib dhos, 6061-T6 tsuas yog qhov kev xaiv tiag tiag ntawm ob, thiab cov neeg tsim qauv yuav tsum tau siv nyiaj rau lub zog poob rau hauv thaj chaw uas muaj kev kub ntxhov los ntawm kev ntxiv cov thickness hauv zos lossis ob lub phaj. Rau bolted los yog riveted sib dhos, 7075-T6 tso cai rau cov seem sib dua thiab tsawg dua fasteners, uas feem ntau offsets nws cov nqi siab dua hlau nyob rau hauv kev thauj thiab tuav cov qauv.
FAQ
Q: T6 txhais li cas hauv 6061-T6 thiab 7075-T6?
T6 txhais tau hais tias cov khoom yog cov tshuaj kho cua sov, quenched thiab tom qab ntawd muaj hnub nyoog li qub, muab lub zog siab tshaj plaws rau ob qho tib si alloys.
Q: Puas yog 7075-T6 ob zaug muaj zog li 6061-T6?
Tsis heev. Nyob rau hauv cov nqe lus yield 7075-T6 yog hais txog 80% muaj zog, 503 MPa tiv thaiv 276 MPa, thaum lawv cov tawv nqaij yog ze heev vim hais tias elastic modulus nyob ntawm cov txhuas nws tus kheej.
Q: Puas yog 6061-T6 thiab 7075-T6 tuaj yeem txuas rau ib leeg?
6061-T6 tuaj yeem txuas rau lwm cov 6000-series alloys yam tsis muaj teeb meem. Vuam 7075-T6 tsis pom zoo txhua, yog li cov rooj sib txoos uas ua ke ob qho tib si koom nrog kev siv tshuab.
Q: Cov hlau twg tuav nws cov duab zoo dua tom qab machining?
Kev ntxhov siab -relieved tempers xws li 6061-T651 thiab 7075-T651 yog cov lus teb zoo dua rau ob qho tib si alloys, vim tias ncab tom qab kev laus txo cov kev ntxhov siab seem uas ua rau txav mus rau hauv nyias lossis asymmetric.
Q: Yam hlau twg yuav tsum siv sab nraum zoov?
6061-T6 ua tau zoo sab nraum zoov thiab xav tau me ntsis ntau dua li qhov ua tiav anodized . 7075-T6 yuav tsum yog anodized los yog coated, thiab cov npoo yuav tsum tau muab kaw, tshwj xeeb tshaj yog nyob rau hauv ntug hiav txwv dej los yog chemically aggressively.
Q: Puas yog 6061-T6 yog qhov kev xaiv zoo rau cov khoom ntim siab?
Yog lawm. Nws kev sib xyaw ua ke ntawm lub zog nruab nrab, kev ua haujlwm zoo heev thiab muaj qhov muaj nyob ib puag ncig feem ntau xa tus nqi qis tshaj plaws rau ib feem tiav, nrog 7075-T6 tshwj tseg rau qhov chaw uas lub zog tswj tau tiag tiag.
