1. Hom tooj liab yog qhov zoo tshaj?
Qhov "zoo tshaj plaws" zoo tshaj plaws "zoo tshaj plaws yog nyob ntawm cov ntawv thov tshwj xeeb, raws li cov qauv sib txawv thiab cov qib muaj cov khoom lag luam zoo nkauj ua kom cov khoom siv ntau yam. Ntawm no yog cov hom tseem ceeb thiab lawv cov ntawv thov zoo tshaj plaws:
Electroly tawv tawv tooj (ETP tooj liab, C11000): Qhov no yog qhov tseem ceeb tshaj plaws thiab purest daim tooj liab (99.9% ntshiab). Nws muaj hluav taws xob zoo thiab thermal ua tau zoo, ua rau nws zoo tshaj plaws rau xaim hluav taws xob, cov pob hluav taws xob, thiab kev hloov pauv hluav taws xob, thiab kev hloov hluav taws xob, thiab kev hloov cua sov. Nws txoj kev ductility siab tseem muaj kev sib haum cov ntawv thov uas xav tau khoov lossis sib sau ua, ib yam li cov leeg dej zumbes.
Cov pa oxygen-dawb (OFC, C10200): Nrog cov ntsiab lus oxygen (<0.003%) than ETP, OFC has superior conductivity and is highly resistant to hydrogen embrittlement at high temperatures. It is preferred for high-performance applications like aerospace wiring, audio cables, and vacuum systems.
Deagidized tooj liab (piv txwv li, C12200): Kho nrog phosphorus kom tshem tawm cov oxygen, hom no zam kev solding lossis vuam. Nws yog qhov zoo rau cov kav dej fittings, cov kab tub yees, thiab HVAC cov khoom siv uas solder sib koom ua ke yog qhov tseem ceeb.
Copper Alloys (eg, brass, bronze): While not pure copper, alloys like brass (copper-zinc) and bronze (copper-tin) offer enhanced strength, corrosion resistance, or machinability. Tooj dag yog qhov zoo tshaj rau cov kho vajtse zoo nkauj lossis cov li qub, thaum bronze excels hauv bearings thiab marine.
Hauv ntej, tsis muaj universal "zoo tshaj plaws" tooj yog qhov zoo tshaj plaws rau feem ntau cov khoom siv hluav taws xob, thiab deoxidized tooj liab rau soldering cov haujlwm.
2. Hom tooj liab twg yog qhov muaj zog tshaj?
Ntsiav ntshiab yog cov mos thiab ducatively mos, yog li cov tooj liab uas muaj zog tshaj plaws "tooj liab zoo nkauj nrog lwm cov hlau uas txhim kho lub zog. Ntawm cov no:
BerylLine Copper (piv txwv li, C17200): Qhov no alloy, muaj 1.5-2.5% khoom siv beryllium, yog cov muaj zog tshaj cov khoom siv tooj liab. Nws tuaj yeem yog cov kho kom sov kom ua tiav cov zog tensile ntau tshaj li 1,400 MPa (megapascals), piv rau qee cov hlau. Its strength, combined with good conductivity and resistance to fatigue, makes it ideal for springs, electrical connectors, and precision tools.
Phosphor Bronze (piv txwv li, C52100): nrog 3.5-10% cov tshuaj phosphorus, Phosphor Bronze muaj lub zog siab (nce txog 800) thiab hnav tsis kam tiv. Nws yog siv nyob rau hauv zog, bearings, thiab springs.
Aluminium Bronze (piv txwv li, C61400): alloys nrog 5-11% kev ua kom muaj zog txog 700 mpa, nrog rau corrosion tsis kam. Lawv tau siv rau hauv marine propellers thiab cov tshuab tshuab hnyav.
Ntsiav ntshiab, los ntawm kev sib piv, muaj lub zog tensile ntawm tsuas yog ~ 220 mpa hauv nws cov ntawv qhia nyiaj, ua kom muaj zog kom muaj zog rau cov qauv lossis kev siv ntxhov siab.
3. Dab tsi tooj liab kim?
Qhov kim kim tshaj plaws ntawm tooj liab yog cov uas muaj ultra-siab huv, cov kev ua tshwj xeeb, lossis cov khoom tsis tshua muaj. Cov piv txwv tseem ceeb muaj xws li:
Cov pa oxygen-dawb kev ua haujlwm (ofhc) tooj liab: tus nqi hwm ntawm cov pa-oxygen-dawb) nrog tsawg kawg nkaus) nrog tsawg kawg nkaus. Nws cov ntsiab lus siab heev thiab cov ntsiab lus oxygen ua nws kim heev los tsim, thiab nws tau luv dua li tus qauv tooj liab. Nws yog siv nyob rau hauv cov ntawv thov siab zoo li particle accelerators, superconducting hlau nplaum, thiab siab heev hluav taws xob.
Beryllium tooj liab alloys: cov alloys kim heev vim muaj tus nqi siab ntawm beryllium (ib qho kev ua kom muaj kev ua kom pom zoo thiab ua kom muaj zog. Cov nqi tuaj yeem yog 5-10 npaug siab dua li cov tooj liab zoo dua li ua kom muaj kev sib xyaw ua ke ntawm lub zog thiab conductivity.
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Hauv cov ntsiab lus xaus, ntawm tooj liab thiab beryllium tooj liab alloys yog tus nqi tshaj plaws, tsav los ntawm lawv cov ntawv thov tshwj xeeb, thiab kev ua haujlwm siab.
