Dab tsi yog Cov Khoom Ntawm 7075 Aluminium Alloy?
7075 txhuas alloyyog paub zoo rau nws zoo heev mechanical kev ua tau zoo. Nws cov khoom tseem ceeb muaj xws li:
Corrosion Cwj Pwm:
7075 aluminium alloy muabnruab nrab corrosion kujthaum piv nrog 5xxx thiab 6xxx series alloys. Txawm li cas los xij, nws yog qhov tshwj xeeb tshaj plaws raukev nyuaj siab-corrosion tawg, tshwj xeeb tshaj yog nyob rau hauv siab -kev ntxhov siab lossis chloride- ib puag ncig nplua nuj. Vim li no, kev tiv thaiv kev kho mob feem ntau siv.
Melting Range:
Cov alloy muaj ntau yam melting477-635℃(891-1175℃F),uas yog qis dua li ntawm ntau cov hlau, ua rau kev tsim thiab ua kom yooj yim dua.
Tshuaj Reactivity:
Txawm hais tias nws cov nag lossis daus- cov qauv hardened muab lub zog siab, 7075 aluminium alloy tseem tuaj yeem cuam tshuam nrogmuaj zog acids thiab alkalis. Hauv kev ua haujlwm hnyav,tiv thaiv txheejraug pom zoo kom tswj kav ntev.
Ceev:
Nrog ib tug ceev ntawm2.81 g / cm³, 7075 aluminium alloy muaj qhov zoo heevlub zog - rau - qhov hnyav piv, ua rau nws zoo tagnrho rau kev siv lub teeb yuag.
Galvanic Corrosion:
Thaum 7075 aluminium alloy los rau hauv kev sib cuag nrog cov hlau tsis sib xws -tshwj xeeb tshaj yog nyob rau hauv ib puag ncig corrosive- nws yuav muaj kev paubgalvanic corrosion kujvim muaj qhov sib txawv hauv electrochemical muaj peev xwm. Yog li kev sib cais kom raug thiab kev tiv thaiv saum npoo yog qhov tseem ceeb.
Dab tsi yog cov cuab yeej cuab tam ntawm 7075 Aluminium Alloy?
Cov7 075-T6tshwj xeeb tshaj yog nyiam nyob rau hauv aerospace thiab lwm yam siab - kev siv kev ntxhov siab vim nws cov yam ntxwv zoo tshaj plaws:
Tensile zog:
7075-T6 aluminium alloy muaj lub zog tensile ntawm kwv yees li572 MPa (83,000 psi), ua kom nws tiv taus siab heev thov loads.
Yield zog:
Nws lub zog tawm los feem ntau yog los ntawm480-505 MPa (69,000-73,000 psi). Tsawg dua - lub zog tempers, xws li T651, feem ntau pom muaj zog tawm los pib ib puag ncig430 MPa rau.
Elongation ntawm Break:
Elongation ntawm so rau 7075-T6 feem ntau ntog ntawm5% thiab 9%,reflecting nws kuj tsis tshua muaj ductility piv nrog softer aluminium alloys.
Young's Modulus:
Lub Young's modulus ntawm 7075 aluminium alloy yog hais txog71.7 GPa (10,400 ksi), qhia tias siab tawv.
Hardness:
Nyob rau hauv T6 mob, lub alloy feem ntau qhia tau hais tias aRockwell hardness txog 87 HRB.
Hu rau tam sim no
