Lub 4000 series aluminium alloys yog ib pawg ntawm aluminium alloys nrog silicon (si) raws li kev sib dhos thawj lub caij. Qhov kev sib ntxiv ntawm silicon tau txo qis lub suab me me ntawm cov txhuas alloy thaum txhim kho nws lub fluidity, hnav tsis kam, thiab kub tsis kam. Lub 4000 series alloys tau siv dav hauv cov ntaub ntawv vuam, cov khoom lag luam brazing, kev hloov pauv kub, thiab lwm thaj teb.
Lub ntsiab lus sib xws hauv 4000 series aluminium alloys yog silicon, feem ntau yog xws li 4.5%. Qee cov alloys kuj tseem suav nrog cov khoom xws li tooj liab, magnesium, thiab npib nyiaj npib los txhim kho lawv cov peev txheej ntxiv.
Sib xws4000 series aluminium alloy cov qibXws li:
|
Alloy Qib |
Lub ntsiab |
Cov yam ntxwv |
Cov Kev Siv Raug Raug |
|
4032 |
Al-Si-mg-cu-ni |
Siab hnav tsis kam, siab-kub tsis kam, siab zog |
Lub Cav Pistons, Nres Discs |
|
4045 |
Al-Si |
Cov thermal zoo heev, muaj zog corrosion tsis kam |
Automoteive Radiators, hluav taws xob cua sov |
|
4145 |
Al-Si-Cu |
Kev kub siab ua tsis taus, zoo rau vuam |
Aerospace tshuab, cov khoom lag luam brazing |
|
4643 |
Al-Si-mg |
Corrosion Kuj, Zoo Weldability |
Txheej txheem sib xyaw, cov ntaub ntawv vov tsev |
4000 series series aluminium alloys muaj nyob rau hauv ntau cov ntawv, suav nrog:
Aluminium Ntawv thiab Coils(Rau kev tsim kho, kho tsheb hluav taws xob, aerospace)
Aluminium Rods Thiab Leeg(rau cov cav ntoo sib xyaw, khoom siv hluav taws xob)
Cov yam ntxwv tseem ceeb:
Tsawg melting point:Qhov kev sib ntxiv ntawm silicon tau txo lub melting lub ntsiab lus ntawm cov txhuas alloy, ua rau nws haum rau vuam thiab cov khoom lag luam brazing. Nws melting taw tes yog nyob ib ncig ntawm 500-600 degree.
Hnav zoo heev:Lub xub ntiag ntawm silicon hais txhim kho lub hardness thiab hnav tsis kam ntawm cov txhuas alloy. Nws yog feem ntau siv los tsim cov kev sib txhuam siab xws li pistons thiab cov cav.
Zoo fluidity:Silicon txhim khu cov khoom siv ua ke ntawm cov txhuas alloy, ua rau nws yooj yim los sau cov pwm sib xyaw.
Thaum tshav kub kub tiv:Lub 4000 series aluminium alloys kom muaj lub zog zoo thiab ruaj khov ntawm qhov kub. Nws yog feem ntau siv los tsim cov cav sib xyaw ua ke, cov khoom siv vuam, thiab qhov ntsuas kub ntawm qhov chaw.
Zoo heev Weldability:Nws yog ib qho siv tau siv vuam hlau thiab cov khoom lag luam brazing, tso cai txhuas-rau-txhuas lossis txhuas sib txuas.
Qhov zoo thiab qhov tsis zoo:
Qhov Zoo:
Tsawg melting point, haum rau vuam thiab brazing.
Zoo fluidity thiab casting kev ua haujlwm.
Siab hnav tiv taus thiab kub ua kom tsis kam.
Haum rau kev ua qauv zoo li qub.
Qhov tsis zoo:
Qhov sib ntxiv ntawm silicon txo hluav taws xob conductivity, ua rau nws tsis zoo rau cov ntawv thov siab.
Qee cov alloys muaj qis zog thiab hardness, xav tau kev pab ntau lossis kev kho cua sov los txhim kho.
