Yuav ua li cas Aluminium Alloy 6061 Muab piv rau 7075 rau Cov Khoom Siv Hluav Taws Xob Hluav Taws Xob?

Aluminium yog cov khoom siv rau cov cua sov phaj cores vim nws lub teeb yuag thiab zoo thermal conductivity. Txawm li cas los xij, tsis yog txhua qhov aluminium alloys zoo ib yam. Cov qib sib xws, xws li 6061 thiab 7075, yog kev lag luam -tawm ntawm lub zog, corrosion resistance thiab manufacturability. Cov kws tsim hluav taws xob tsim cov phiaj xwm cua sov, txawm tias chav kuaj kub daim hlau, cov txheej txheem ua cua sov lossis cov txheej txheem semiconductor wafer cua sov, yuav tsum nkag siab txog cov kev sib txawv no kom cov khoom uas tau xaiv tuaj yeem ua tau raws li kev ua haujlwm thermal thiab ntev - cov kev xav tau kev ntseeg siab.

6061 vs 7075 Aluminium Alloys Sib piv
6061 thiab 7075 yog ob qho tib si kub kho tau wrought aluminium alloys. Txawm li cas los xij, lawv cov khoom xyaw alloying thiab cov yam ntxwv tshwm sim txawv heev.

6061 Aluminium Alloy 6061 yog ntau yam, cua sov- kho tau alloy nrog magnesium (0.8-1.2%) thiab silicon (0.4-0.8%) raws li cov ntsiab lus tseem ceeb alloying. Nws feem ntau hu ua "workhorse" ntawm tsev neeg txhuas vim nws qhov zoo - sib npaug sib xyaw ntawm lub zog, corrosion resistance, machinability thiab weldability. 6061 nyob rau hauv T6 temper (kev daws teeb meem thaum tshav kub kub kho thiab artificially aged) muaj ib tug yield zog ntawm txog 40 ksi (276 MPa) thiab qhov kawg tensile zog ntawm (415 MPa).

7075 Aluminium Alloy 7075 yog lub zog muaj zog alloy nrog cov khoom tseem ceeb alloying yog zinc (5.1-6.1%), nrog me me ntawm magnesium thiab tooj liab. Nyob rau hauv T6 temper nws muaj ib tug yield zog ntawm txog 73 ksi (503 MPa) thiab qhov kawg tensile zog ntawm 83 ksi (572 MPa) - qhov tseem ceeb zoo ib yam li ib co me me steels. Txawm li cas los xij, lub zog no tau txais los ntawm kev txo qis corrosion thiab inferior weldability.

Daim ntawv thov cua sov phaj: Qhov txawv tseem ceeb
Hauv kev sib piv ntawm aluminium 6061 vs 7075 cua sov phaj, plaub yam tseem ceeb tau muab piv rau: txhua yam muaj zog, corrosion kuj, machinability thiab fabrication, thiab thermal ua haujlwm.

Mechanical Strength
Thaum cov phaj yuav tsum tau rhuab nyob rau hauv loj loads, los yog yuav tsum tau tiv thaiv dabtsi yog khoov nyob rau hauv siab, los yog yuav tsum nyob rau hauv lub tiaj tus clamping quab yuam, lub zog yog ib tug tseem ceeb tshaj plaws.

6061-T6 yog tsim rau ntau daim ntawv thov cua sov xws li cov txheej txheem cua sov thiab chav kuaj kub daim hlau. Nws lub zog tawm los ntawm 276 MPa yog qhov tsim nyog los tiv thaiv kev deformation mus tas li nyob rau hauv ib txwm ua haujlwm siab thiab mounting stresses.

7075-T6 muaj yuav luag ob npaug ntawm lub zog tawm los (503 MPa). Qhov no alloy yog tsim rau cov cua kub daim hlau uas yuav tsum tau siv rau cov neeg kho tshuab hnyav loads xws li kev kub siab presses, structural seem ntawm loj cua sov daim hlau los yog daim ntaub ntawv uas lub phaj yuav tsum nyias nyias tab sis txawm li cas los robust.

Nyob rau hauv qhov tseeb, feem ntau ntawm cov cua sov phaj tsim tsis tshua xav tau tag nrho lub zog ntawm 7075. Lub zog siab dua ntawm 7075 tsuas yog qhov zoo yog tias lub phaj yuav raug cuam tshuam rau lub sijhawm tseem ceeb, kev cuam tshuam los yog tseem ceeb kom txuag tau qhov hnyav (thiab yog li lub phaj nyias tuaj yeem siv rau tib lub peev xwm thauj khoom).

Corrosion Resistance
Lub aluminium 6061 vs 7075 cua sov daim hlau xaiv feem ntau los mus rau corrosion kuj, tshwj xeeb tshaj yog yog hais tias lub rhuab phaj yog siv nyob rau hauv ntub dej, dej hiav txwv los yog tshuaj lom neeg mob hnyav.

6061 muaj kev tiv thaiv zoo rau huab cua corrosion, suav nrog tshuaj tsuag ntsev thiab tshuaj lom neeg tsawg. Qhov no yog vim yog kev tsim cov txheej txheem txuas ntxiv ntawm txhuas oxide txheej . 6061 kuj muaj qhov ua tau zoo heev rau kev ntxhov siab corrosion cracking (SCC) txawm tias nyob rau hauv qhov nruam tensile loads.

7075 tsis tshua muaj corrosion resistant. Vim nws cov tooj liab concentration (1.2-2.0%) thiab zinc-nplua nuj muaj pes tsawg leeg nws yog rhiab heev rau intergranular corrosion thiab hnyav dua rau kev ntxhov siab corrosion cracking. Nyob rau hauv cov xwm txheej uas muaj cov tshuaj chloride ions (xws li cov ntug dej hiav txwv los yog chaw ua lag luam) lossis thaum lub phaj nyob rau hauv seem tensile stresses los ntawm fabrication los yog thermal cycling, 7075 tuaj yeem tawg yam tsis muaj kev ceeb toom. Li no, 7075 feem ntau yog siv nrog cov txheej txheem tiv thaiv (anodising, painting lossis cladding) qhov twg corrosion raug pom.

Nws yuav tsum raug sau tseg tias cov phaj cua sov feem ntau raug rau qhov kub thiab txias, uas yuav ua rau cov txheej txheem corrosion ntau dua. Qhov sib txawv ntawm kev tiv thaiv corrosion ntawm 6061 thiab 7075 yog qhov tseem ceeb tshaj tawm tshaj 100℃C . 6061 yog qhov kev nyab xeeb tshaj plaws thiab ruaj khov dua rau feem ntau cov ntawv siv cua sov, tshwj xeeb tshaj yog nyob rau hauv kev sib cuag nrog dej, ntxuav cov kev daws teeb meem los yog huab cua ntub.

Fabrication thiab Workability
Cov phaj cua sov feem ntau xav tau cov txheej txheem machining xws li qhov drilling qhov rau lub tshuab cua sov, milling grooves rau qhov ntsuas kub los yog ya mus txiav qhov chaw kom tiaj tus. Weldability kuj yuav xav tau rau mounting brackets los yog sealing npoo.

6061 tshuab nrog yooj yim. Nws tsim cov chips tas mus li uas tau yooj yim tawg thiab tej zaum yuav raug machined kom zoo nto tiav. Nws kuj tau yooj yim welded los ntawm TIG los yog MIG cov tswv yim nrog me ntsis poob ntawm lub zog nyob rau hauv lub tshav kub cuam tshuam cheeb tsam.

7075 yog ib qho nyuaj rau kev tsim khoom. Nws yog nruj dua thiab nkig ntau dua ua rau cov cuab yeej hnav ntau dua thiab ua rau muaj kev sib zog nyuaj los tuav cov chips. Qhov tseem ceeb tshaj 7075 tsis yog ib qho kev sib txuas ntawm cov khoom siv los ntawm cov pa. Nws yog qhov yooj yim heev rau kub tawg thiab lub zog loj poob hauv vuam. Brazing los yog kev sib txhuam do vuam tuaj yeem ua haujlwm tab sis cov no yog cov txheej txheem tshwj xeeb.

Qhov no yog qhov loj ntxiv hauv kev ua haujlwm nrog 6061 rau feem ntau cov cua sov phaj fabricators. Lub peev xwm los laum, kais, sib tsoo thiab vuam yam tsis muaj cov cuab yeej tshwj xeeb lossis kev kho cua sov tom qab vuam txo qis cov nqi tsim khoom thiab lub sijhawm ua haujlwm.

Thermal Conductivity thiab Thermal Expansion
Cov alloying Cheebtsam yog tam sim no nyob rau hauv me me concentrations xws li ob alloys muaj zoo thermal yam ntxwv. Tab sis muaj qhov sib txawv me me:

Khoom 6061-T6 7075-T6 Thermal Conductivity (25 degree) ~ 167 W/m·K ~ 130 W/m·K Coefficient ntawm Thermal Expansion (20-100 degree) ~ 23.6 µm/m·K ~ 23.4 µm/m·K· 2 nm 2 nm2 6061 muaj thermal conductivity zoo dua (167 W / m·K vs 130 W / m·K) thiab hloov cov cua sov zoo dua. Lub phaj cua sov nrog kev txhim kho thermal conductivity muaj qhov sib txawv ntawm qhov kub thiab txias dua thiab cov lus teb sai dua rau lub zog hloov pauv. Qhov sib txawv ntawm ib ncig ntawm 22% yog pom meej nyob rau hauv cov ntawv thov precision, tab sis tsis tseem ceeb. Lub thermal tswj kev ntxhov siab yog piv rau ob qho tib si alloys vim tias cov coefficients ntawm thermal expansion yog zoo sib npaug.

Sib piv Table 6061 piv rau 7075 Heating Plate Cores
6061-T6 Alloy 7075-T6 Alloy
Yield zog (0.2% offset) 40 ksi (276 MPa) 73 ksi (503 MPa)
Tensile zog 45 ksi (310 MPa) 83 ksi (572 MPa)
Brinell hardness 95-150
Corrosion kuj (tag nrho) Zoo nyob rau hauv marine / tshuaj ib puag ncig Zoo heev tsis zoo (nruam rau intergranular corrosion thiab SCC)
Resistance to Stress Corrosion Cracking HighLow (xav tau kev tiv thaiv npog hauv cov xwm txheej phem)
Machinability Zoo (cov cuab yeej tsis tu ncua, kev tsim cov nti zoo) Zoo rau cov neeg pluag (ntau lub cuab yeej hnav, tawv tawv dua)
Weldability Zoo heev (TIG / MIG nrog 4043 lossis 5356 muab tub lim) Tsis zoo (tsis yog rau cov qauv welds)
Thermal conductivity (W/m·K) ~ 167 ~ 130
Kev siv cov cua sov daim hlau General muaj kub daim hlau Laboratory cua sov theem txheej txheem tank rhaub Semiconductor chuck basesHigh load compression platens nyias lub siab lub zog rhaub phaj (nrog tiv thaiv npog)
Tus nqi qis (muaj dav) Siab dua (tshwj xeeb alloy)
Daim ntawv thov tshwj xeeb cov lus pom zoo
Thaum 6061 Yog Cov Khoom Xaiv
Cov alloy feem ntau siv rau kev siv phaj cua sov yog 6061. Qee qhov piv txwv ntawm cov xwm txheej yog:

Laboratory kub daim hlau. Kev tiv thaiv corrosion yog nyiam los ntawm cov dej ntws tawm, ntxuav cov tshuaj thiab cov huab cua ntub.

Muaj cov txheej txheem cua sov - Kev tiv thaiv corrosion zoo yuav tsum tiv taus kev sib cuag nrog dej, chav dej lossis cov tshuaj me me.

Heated platens, rau laminating lossis nias - Lub phaj tuaj yeem raug ya raws los ntawm cov nplaum los yog cov resins 6061 resists pitting

Welded los ua ke - Thermowells, brackets los yog mounting flanges yuav tsum tau welded.

Machined cua sov daim hlau - Cov qauv nyuaj rau lub tshuab cua sov los yog cov kab hluav taws xob tau yooj yim ua rau hauv 6061.

Tus nqi ua haujlwm rhiab heev - 6061 yooj yim dua thiab raug nqi tsawg dua ib phaus.

Hauv kev xyaum, 6061 muaj qhov sib xyaw ua ke ntawm cov khoom zoo - lub zog txaus, muaj zog corrosion kuj, zoo thermal conductivity, thiab yooj yim ntawm kev tsim khoom - los ua qhov kev xaiv rau cov cua sov phaj cores.

Thaum siv 7075 7075 tsuas yog qhia thaum lub phaj cua sov yuav tsum txhawb nqa cov khoom siv hluav taws xob siab tshaj qhov muaj peev xwm ntawm 6061. Piv txwv yog:

Kev kub siab Compression molding - Lub platen yuav tsum tsis txhob khoov nyob rau hauv ob peb tonnes ntawm clamping quab yuam yam tsis tas yuav distortion.

Nyias, sib sib zog nqus cua sov daim hlau - Aerospace los yog portable khoom thaum lub luj yog nyob ntawm tus nqi thiab ib tug nyias phaj (vim 7075 lub zog ntau zog) txuag huab hwm coj.

Cov loads zoo li qub heev - Lub phaj nqa cov khoom hnyav lossis muaj cov ntsia hlau loj loj.

Yog tias koj xaiv 7075, muaj lwm yam kev ntsuas koj yuav tsum tau ua:

Lub phaj yuav tsum tau anodised (zoo tagnrho nyuaj anodised los yog coated nrog corrosion inhibiting txheej) los tiv thaiv corrosion.

Kev ntxhov siab kho cua sov yuav tsum tau ua ua ntej machining kawg kom txo qis qhov seem tensile stresses los ntawm machining.

Qhov chaw ua haujlwm yuav tsum qhuav lossis tiv thaiv (piv txwv li, hauv ib lub thawv kaw nrog cov desiccant).

Tsis txhob vuam. Siv mechanical fastening.

Nws yuav tsum raug sau tseg tias txawm tias muaj cov txheej txheem tiv thaiv, 7075 tseem muaj kev cuam tshuam rau kev ntxhov siab corrosion tawg thaum lub sijhawm ua haujlwm ntev, tshwj xeeb tshaj yog thaum kub siab. Yog li ntawd, ntau tus engineers nyiam 6061 rau txhua lub phaj cua sov uas xav tias yuav kav ntev tshaj li ob peb xyoos hauv qhov chaw tsis muaj kev tswj xyuas.

Cov Cuab Yeej Cuab Yeej - Tshwj Xeeb Thermal Considerations
Feem ntau cov phaj cua sov yuav tsum tau ua kom sov thiab txias hauv cov voj voog . 6061 thiab 7075 muaj cov coefficients zoo sib xws ntawm thermal expansion yog li qhov sib txawv ntawm cov phaj thiab cov khoom siv hluav taws xob (feem ntau yog hlau lossis Incoloy) zoo ib yam. Tab sis 6061 muaj cov thermal conductivity zoo dua (167 piv rau 130 W / m·K) uas muaj ob qhov zoo:

Kev ntsuas kub sai dua - Thaum tshav kub kub los ntawm lub tshuab cua sov los yog cam khwb cia- nyob rau hauv cov khoom faib sai dua nyob ib ncig ntawm lub phaj.

Txhim kho qhov kub thiab txias tsis sib xws - Tsawg qhov sib txawv ntawm qhov kub thiab txias ntawm lub rhaub dej thiab cov npoo ntawm lub phaj.

Rau cov ntawv thov cua sov zoo xws li cov khoom siv hluav taws xob semiconductor wafer chucks lossis kuaj cov tshuaj tiv thaiv, cov thermal conductivity ntau dua ntawm 6061 ua rau nws xaiv, tsis hais txog kev xav txog lub zog.

Los xaus
Sib piv aluminium 6061 vs 7075 rau cov khoom siv cua sov phaj, 6061 yog qhov zoo tshaj plaws alloy rau feem ntau ntawm cov ntawv thov. Nws muaj kev sib xyaw ua ke zoo ntawm lub zog txaus (40 ksi tawm los), siab corrosion kuj, zoo thermal conductivity (167 W / m·K), thiab zoo heev machinability thiab weldability. Cov khoom zoo no ua rau lub neej ua haujlwm ntev, txhim khu kev qha thiab pheej yig dua cov nqi tsim khoom.

Lub 7075 yog yuav luag ob zaug li muaj zog (73 ksi yield) yog li ntawd zoo rau cov cua kub daim hlau nyob rau hauv hnyav mechanical loads. Txawm li cas los xij, nws tsis zoo corrosion kuj, rhiab heev rau kev ntxhov siab corrosion cracking, teeb meem machinability thiab unweldable cwj pwm, heev txwv nws siv. Cov txheej txheem tiv thaiv thiab kev tswj hwm ib puag ncig yog tsim nyog thaum 7075 yog xaiv.

Kev xaiv cov khoom siv rau cov cua sov phaj tub ntxhais yuav tsum tau ua raws li kev soj ntsuam dav dav ntawm cov thermal, mechanical thiab ib puag ncig cov ntsiab lus koom nrog. Cov neeg tsim qauv feem ntau pom 6061 kom muaj kev nyab xeeb, txhim khu kev qha thiab kev xaiv nyiaj txiag. Siv 7075 tsuas yog thaum cov txheej txheem yuav tsum muaj ntau tshaj li qhov 6061 tuaj yeem muab tau-thiab txawm tias tom qab ntawd, ua tib zoo saib xyuas kev tiv thaiv corrosion.