Aluminium Temper T txhais li cas?
T temper stands rau thermally kho, lub ntsiab lus kho cua sov, thiab nws siv rau cov cua sov- kho tau txhuas phaj alloys. Nws yog lub cim temper feem ntau siv hauv aluminium engineering. Aluminium phaj nrog T temper undergoes kev kho cua sov, ceev quenching, thiab ntuj los yog dag dag. Cov lej sib txawv hauv qab T txhais tau tias cov cua sov tshwj xeeb- kev kho mob sib txawv, kev ntxhov siab-txoj kev nyem, thiab cov cuab yeej cuab tam theem, yog li nyeem tag nrho cov kev npau taws yog qhov tseem ceeb thaum xaiv phaj.
Common T Tempers piav qhia
6061 T3 yog cov cua sov kho, ua haujlwm txias, thiab ib txwm muaj hnub nyoog mus rau qhov chaw ruaj khov, siv qhov chaw ua haujlwm txias txhim kho cov khoom zoo. 6061 T4 yog cov tshuaj cua sov kho thiab muaj hnub nyoog laus tsis ua haujlwm txias tom qab kev kho cua sov, tsim nyog qhov tsim nyog ua ntej lub zog kawg tsim tawm . 6061 T5 yog tsim ntawm qhov kub thiab txias, txias, thiab cov hnub nyoog muaj hnub nyoog, kev kho cua sov tsis muaj zog thiab ruaj khov {6} cov hnub nyoog muaj hnub nyoog, kev npau taws tshaj plaws rau 6061 phaj, muab lub zog sib npaug, ua haujlwm tau zoo, thiab tiv thaiv corrosion . 6061 T651 yog raws li T6 nrog kev tswj kev ncab tom qab kev kho cua sov los txo cov kev ntxhov siab sab hauv, feem ntau yog siv rau cov phaj tuab nrog kev ruaj ntseg zoo heev thaum lub sij hawm machining. 6061 T6511 zoo ib yam li T651 nrog rau kev sib txuas ntxiv rau kev sib tw, kev sib tw thiab kev sib tw, feem ntau yog siv rau cov phaj tuab nrog kev ruaj ntseg zoo thaum lub sij hawm machining 1 mus rau 3 feem pua. Rau ob qho tib si 6061 thiab 7075, qhov sib txawv T tempers feem ntau cuam tshuam rau qhov seem ntawm kev ntxhov siab, kev ua haujlwm ruaj khov, kev pheej hmoo ntawm deformation, thiab flatness thiab qhov tseeb; T651 thiab T6511 phaj muaj kev ntxhov siab sab hauv dua li T6, ua rau lawv tsis tshua muaj kev sib tsoo thaum lub sijhawm CNC machining.
Kev kho cua sov
T temper kev kho cua sov ua raws li ob kauj ruam tseem ceeb. Kauj ruam ib yog kev kho cua sov thiab quenching: lub phaj yog rhuab mus rau kwv yees li 527 degrees Celsius thiab tuav rau li 1 teev, uas dissolves alloying ntsiab xws li magnesium, silicon, thiab zinc rau hauv lub txhuas matrix, thiab ces quenched sai nyob rau hauv dej los tiv thaiv ntxov ntxov los nag. Kauj Ruam 2 yog kev kho kev laus: lub phaj rov ua kom sov li ntawm 177 degrees Celsius thiab tuav rau 1 txog 18 teev nyob ntawm qhov tuab thiab daim ntawv thov. Rau 6061 cov ntaub ntawv no Mg2Si precipitates uas nce lub zog thiab hardness, thaum 7075 cov ntaub ntawv ntxiv dag zog raws li MgZn2 thiab AlCuMg compounds.
6061-T6 vs 7075-T651: Qhov txawv tseem ceeb
6061-T6 yog 6000-series phaj nrog magnesium thiab silicon raws li cov ntsiab lus tseem ceeb alloying thiab Mg2Si ntxiv dag zog rau theem. Nws muaj qhov zoo tshaj plaws weldability thiab corrosion kuj, zoo machinability, thiab sib npaug ntawm lub zog thiab ntau yam, ua rau nws yog ib qho kev xaiv thawj zaug rau kev siv tshuab thiab cov txheej txheem. 7075-T651 yog 7000-series phaj nrog zinc ua lub ntsiab alloying ntsiab ntxiv rau magnesium thiab tooj liab. Nws yog kev ntxhov siab los ntawm kev ncab hauv T651 mob, muaj lub zog siab heev piv rau qee cov hlau, thiab yog qhov nyiam rau cov khoom siv hauv aerospace thiab kev ntxhov siab, txawm hais tias nws cov machinability qis dua 6061. Cov tshuaj muaj pes tsawg leeg yog, rau 6061, magnesium 0.8 mus rau 1.2 feem pua, silicon 0.45% rau 0.5% rau 0.801%. thiab chromium 0.04 mus rau 0.35 feem pua ntawm qhov sib npaug ntawm txhuas; rau 7075, zinc 5.1 mus rau 6.1 feem pua, magnesium 2.1 mus rau 2.9 feem pua, thiab tooj liab 1.2 mus rau 2.0 feem pua ntawm cov nyiaj tshuav aluminium.
Tej yam cuab yeej cuab tam
Cov txiaj ntsig zoo rau cov phaj yog li 290 MPa tensile thiab 240 MPa tawm los rau 6061-T6, txog 290 MPa tensile thiab 240 MPa tawm los rau 6061-T651, thiab txog 570 MPa tensile thiab 500 MPa yield 7075 ;ua 651. Cov txiaj ntsig siv no qhia qhov sib txawv ntawm lub zog ntawm ob tsev neeg hlau thiab piav qhia vim li cas 7075 raug xaiv rau kev siv lub zog siab tshaj plaws thaum 6061 tseem yog tus neeg ua haujlwm rau welded thiab cov qauv tsim. Lwm cov tsev neeg npau taws suav nrog F raws li kev tsim, tsis muaj kev kho cua sov tshwj xeeb lossis kev ua kom tawv nqaij; O annealed, lub softest mob nrog siab tshaj plaws ductility; H strain hardened, rau non-heat-kho alloys xws li 5xxx series; thiab W tov cua sov kho, ib ntus, tsis ruaj khov.
Kev Taw Qhia Xaiv
Rau machining, pwm, aerospace, los yog cov qauv siv, xaiv T6 rau lub zog dav dav thiab ntau yam, thiab T651 lossis T6511 thaum muaj kev ntxhov siab -relieved, dimensionally ruaj khov machining yog yuav tsum tau. Xaiv 6061 phaj rau kev sib npaug, weldability, thiab corrosion kuj, thiab 7075 phaj thaum lub zog siab tshaj plaws yog qhov yuav tsum tau ua. Thaum txiav txim, paub meej tias alloy, temper, thickness, flatness kam rau ua, siv tus qauv, thiab cov ntaub ntawv xws li cov ntaub ntawv pov thawj, thiab qhia meej txog kev ntxhov siab -relief yuav tsum tau rau phaj uas yuav CNC machined.
FAQ
Q: Dab tsi yog AA hauv AA6061 lossis AA7075 txhais li cas?
A: AA sawv cev rau Aluminium Association, American qauv lub cev, thiab qhia tias phaj qib ua raws li Aluminium Association cov qauv rau kev tsim khoom thiab tshuaj xyuas.
Q: Qhov txawv ntawm T6 thiab T651 yog dab tsi?
A: T651 yog ua raws li kev kho cua sov T6 nrog kev tswj xyuas ntxiv kom txo tau cov kev ntxhov siab sab hauv, muab kev ruaj ntseg zoo dua thiab tsis tshua muaj kev sib tsoo thaum lub tshuab ua haujlwm.
Q: Qhov twg muaj zog dua, 6061-T6 lossis 7075-T651?
A: 7075-T651 yog qhov muaj zog dua, nrog lub zog tensile ib puag ncig 570 MPa piv txog li 290 MPa rau 6061-T6, tab sis 6061 muaj qhov zoo dua weldability thiab corrosion kuj.
Q: 7075-T651 puas tuaj yeem welded?
A: Fusion welding ntawm 7075 feem ntau tsis pom zoo vim tias nws tuaj yeem txo qhov kev tiv thaiv corrosion thiab kev ua haujlwm; 6061 yog qhov kev xaiv zoo tshaj plaws rau kev sib dhos welded.
Q: Vim li cas 7075 phaj tuaj yeem deformation tom qab machining?
A: Cov kev ntxhov siab nyob hauv kev ua haujlwm tuaj yeem ua rau warping thaum cov khoom raug tshem tawm. T651 temper qhov kev ntxhov siab- nyem stretching txo qhov kev pheej hmoo no, uas yog vim li cas T651 tau teev rau precision-machined phaj.
