Dab tsi Ua 7075 Cim rau Txhuas Txhuas Cov Ntawv
7075 belongs rau 7xxx series ntawm txhuas alloys thiab feem ntau alloyed nrog zinc (5.1-6.1%), magnesium (2.1-2.9%), thiab tooj liab (1.2-2.0%), nrog me me chromium ntxiv. Nws yog ib qho ntawm cov khoom lag luam muaj zog tshaj plaws aluminium alloys, muab lub zog tensile piv rau ntau cov hlau ntawm kwv yees li ib -feem peb ntawm qhov ceev. Thaum muab los ua ib daim ntawv txhuam hniav nyiaj hniav kub, cov khoom siv ua ke ua kom zoo nkauj, kev taw qhia saum npoo zoo nkauj nrog lub zog siab - rau - qhov hnyav piv uas cov neeg tsim khoom muaj txiaj ntsig hauv kev thauj khoom thiab kev siv qhov tseem ceeb. Cov txhuam txhuam tiav yog ua tiav los ntawm mechanically abrading nto nrog abrasive siv los yog ntaub qhwv, ua cov kab zoo sib xws uas muab cov ntawv satin, silver-toned tsos. Qhov kev ua tiav no kuj tseem pab zais cov cim me me hauv thaj chaw uas nquag tuav, xws li panels, tes tuav, thiab cov ntaub thaiv npog.
Temper thiab Mechanical Cwj Pwm
T6 temper, uas muaj cov tshuaj kho cua sov ua raws li kev laus kev laus, yog qhov tshwm sim tshaj plaws rau cov ntawv txhuam 7075. Hauv qhov npau taws no, lub zog tensile feem ntau yog nyob rau hauv thaj tsam ntawm 510-570 MPa nrog elongation ntawm kwv yees li 8-11%, nyob ntawm qhov tuab thiab cov khoom tsim. Vim tias cov khoom siv nyuaj heev piv nrog 1xxx thiab 3xxx alloys, txhuam hniav yuav tsum tau ua nrog pob zeb diamond-coated los yog silicon-carbide abrasives kom ua tiav ib qho kev ua tiav yam tsis muaj cov cuab yeej siv ntau dhau. Nws feem ntau pom zoo kom txhuam tom qab kev kho cua sov kom qhov kawg ntawm qhov chaw tsis cuam tshuam los ntawm cov txheej txheem thermal tom ntej. Kev txhuam hniav ntau dhau yuav tsum raug zam, vim tias nws tuaj yeem tshem tawm cov txheej txheej tawv tawv thiab txo qis kev ua haujlwm qaug zog me ntsis hauv cov khoom muaj kev ntxhov siab heev.
Kev tiv thaiv corrosion
Zoo li feem ntau siab -lub zog 7xxx alloys, 7075 muaj qhov nruab nrab corrosion kuj thiab tau txais txiaj ntsig los ntawm kev tiv thaiv saum npoo ntawm kev pabcuam sab nraum zoov lossis ntub dej. Chromate hloov dua siab tshiab txheej raws li MIL-DTL-5541 yog ib tug ntev -tsim kho rau aerospace thiab tiv thaiv Cheebtsam. Hard anodizing rau hom III specifications muab ib tug tuab, hnav- resistant oxide txheej, txawm hais tias nws muaj peev xwm darken lub tsos ntawm ib tug txhuam tiav, yog li qhov yuav tsum tau pom yuav tsum tau lees paub ua ntej qhia. Hmoov txheej thiab pleev xim yuav tsum tau degreasing tag nrho thiab tsim nyog pretreatment los xyuas kom meej adhesion. Rau qhov xav tau ntawm thaj chaw marine, clad versions ntawm 7075, nyob rau hauv uas cov txheej txheem corrosion-resistant alloy yog khi rau saum npoo, yuav raug txiav txim siab.
Tej kev siv
Brushed 7075 nplooj ntawv feem ntau tau teev tseg rau aerospace sab hauv thiab sab nrauv vaj huam sib luag, aircraft tooling, pwm puag, precision tshuab Cheebtsam, tsheb kauj vab thiab ntaus pob tesniv cov khoom, thiab architectural nta qhov siab -kawg hlau zoo li yuav tsum tau. Cov hlau kuj tseem siv rau hauv pwm thiab cov khoom siv uas qhov kev ruaj ntseg nyob rau hauv kev thauj khoom yog qhov tseem ceeb. Thaum xaiv 7075, cov neeg yuav khoom yuav tsum txheeb xyuas qhov yuav tsum tau muaj kev kub ntxhov, kev ua siab ntev ntev, thiab qhov chaw ua tiav nrog tus neeg muag khoom, thiab thov daim ntawv pov thawj zeb kuaj kom paub meej cov tshuaj muaj pes tsawg leeg thiab cov khoom siv tshuab.
Kev xaiv thiab tuav cov ntawv
Vim tias 7075 yog kim dua li cov khoom siv tseem ceeb xws li 6061, nws feem ntau xaiv tsuas yog qhov twg nws lub zog siab dua ua rau tus nqi. Cov hlau tsis pom zoo rau cov qauv welded, thiab cov khoom siv fastening yog nyiam. Thaum lub sij hawm machining, cov cuab yeej ntse thiab cov coolants tsim nyog yuav tsum tau siv los txo kev ua hauj lwm hardening. Kev tiv thaiv zaj duab xis los yog daim ntawv interleaving yuav tsum tau khaws cia thaum thauj thiab khaws cia kom khaws cov txhuam hniav.
FAQ
Q: Puas yog 7075 haum rau kev siv sab nraum zoov?
7075 tuaj yeem siv sab nraum zoov thaum muaj kev tiv thaiv zoo nrog anodizing lossis txheej txheej, tab sis nws cov corrosion kuj yog qis dua li ntawm 5xxx marine alloys. Rau cov ntug dej hiav txwv los yog siab - qhov chaw av noo, lwm yam alloys los yog clad 7075 yuav tsum tau soj ntsuam.
Q: Puas tuaj yeem txhuam 7075 nplooj ntawv tuaj yeem ua anodized?
Yog lawm. Sulfuric acid anodizing tuaj yeem siv tau, tab sis nws yuav hloov qhov pom ntawm qhov pom ntawm qhov txhuam tiav, feem ntau tsim lub teeb grey lossis xim tsaus nyob ntawm qhov tuab. Ntshiab anodizing yog qee zaum siv los khaws cov nyiaj zoo nkauj.
Q: Qhov txawv ntawm T6 thiab T651 rau 7075 yog dab tsi?
T651 qhia tau hais tias lub phaj tau raug kev nyuaj siab-tso tseg los ntawm kev tswj kev ncab tom qab kev kho cua sov. Qhov no txo cov kev ntxhov siab uas seem thiab txhim kho qhov kev ruaj ntseg thaum lub sij hawm machining, uas yog vim li cas T651 feem ntau nyiam rau precision- cov ntawv siv phaj ua tshuab.
Q: Vim li cas 7075 nyuaj rau vuam?
Cov hlau yog nquag kub tawg thaum vuam vim nws cov zinc thiab tooj liab cov ntsiab lus siab. Thaum koom tsis tau, cov txheej txheem tshwj xeeb xws li TIG vuam nrog cov muab tub lim tsim nyog thiab tom qab-weld aging yog xav tau, tab sis kev siv tshuab fastening tseem yog txoj hauv kev pom zoo.
Q: Dab tsi thickness ntau npaum li cas rau txhuam 7075 nplooj ntawv?
Brushed 7075 nplooj ntawv feem ntau muaj los ntawm li 0.5 hli mus rau 6 hli, nrog cov phaj loj nkag rau hauv cov ntsuas tuab. Muaj nyob ntawm qhov kub thiab txias muaj peev xwm, yog li qhov yuav tsum tau muaj ntau yam yuav tsum tau lees paub nrog tus neeg muag khoom.
Q: Puas yog qhov txhuam txhuam puas cuam tshuam rau cov khoom siv kho tshuab?
Txhuam yog ib qho kev ua haujlwm saum npoo uas tshem tawm cov txheej txheem nyias nyias thiab tsis hloov pauv cov khoom siv ntau yam. Nws yog tsuas yog siv rau lub hom phiaj zoo nkauj thiab tuaj yeem txo qis qhov pom ntawm khawb, tab sis nws tsis yog txheej txheem ntxiv dag zog.