Ntau clarity ntawm kev faib tawm ntawm cov hlau tsis muaj hlau
Paub meej: Ntau tshaj 80% ntawm 118 lub ntsiab lus nyob rau hauv lub rooj zaum yog hlau. Txawm hais tias cov hlau no yog cov hlau tsis muaj hlau thiab yuav tsum tau faib cov hlau tsis yog hlau li cas yog cov lus nug uas tsim nyog tau txais kev qhia ntxiv.
Nonferrous hlau thiab lawv cov alloys, raws li cov khoom tseem ceeb ntawm cov khoom siv niaj hnub no, ua lub luag haujlwm tseem ceeb ntawm cov ntaub ntawv yooj yim thiab cov khoom siv tswv yim hauv kev lag luam hauv lub tebchaws, tib neeg lub neej niaj hnub, kev lag luam tiv thaiv hauv tebchaws, kev tsim kho science thiab technology thiab lwm yam.
Tib neeg txoj kev tshawb fawb thiab kev tshawb fawb ntawm cov hlau tsis muaj hlau, zoo li kev nkag siab ntawm cov xwm txheej, yog cov txheej txheem uas txuas ntxiv mus tob los ntawm macro mus rau micro. Nrog rau kev txhim kho txuas ntxiv ntawm kev tshawb fawb, cov ntsiab lus nyob rau hauv lub sij hawm lub sij hawm ntawm cov ntsiab lus tshuaj tau ua raws li cov txheej txheem ntawm kev ntsuas tsis tu ncua, qhov tseeb tsis tu ncua, thiab nce ntxiv.
Tam sim no, ntau dua 80% ntawm 118 lub ntsiab lus nyob rau hauv lub rooj zaum yog cov hlau. Txawm hais tias cov hlau no yog cov hlau tsis muaj hlau thiab yuav tsum tau faib cov hlau tsis yog hlau li cas yog cov lus nug uas tsim nyog tau txais kev qhia ntxiv.
1) Cov hlau tsis muaj hlau yog dab tsi?
Cov lus Askiv txhais ntawm "non-ferrous metals" yog "Nonferrous Metals", uas sib raug rau cov lus Askiv txhais ntawm "ferrous metals" "Ferrous Metals".
Cov lus txhais ntawm "Ferrous Metals" hauv lus Askiv yog ferrous hlau, uas yog hais txog lub npe ntawm cov hlau, manganese thiab chromium. "Nonferrous Metals" txhais tau tias yog cov hlau tsis muaj hlau, uas yog hais txog lub npe ntawm cov hlau uas tsis yog hlau, manganese thiab chromium.
Raws li ib tug txiv neej laus uas tau ua haujlwm hauv kev lag luam hlau tsis-ferrous rau lub sijhawm ntev, cov txheej txheem ntawm kev txhais "Ferrous Metals" thiab "Nonferrous Metals" rau "ferrous metals" thiab "non-ferrous metals" kuj yog ib qho nthuav. zaj dab neeg uas qhia txog kev kos duab ntawm kev txhais lus.
Cov kws tshawb fawb ntxov tshaj plaws uas txhais "Ferrous Metals" thiab "Nonferrous Metals" xav tias yog lawv tau raug txhais ncaj qha li "ferrous metals" thiab "non-ferrous metals", lossis "ferrous metals" thiab "non-ferrous metals", txawm tias xav txog Cov. kev txhais lus yog qhov tseeb, tab sis nws tsis yog qhov tseeb, thiab nws kuj yog qhov txaus ntshai heev rau kev siv. Yog li tus kws tshawb fawb no tau dhia tawm ntawm nws txoj kev xav ib txwm thiab pib los ntawm cov khoom siv kho qhov muag ntawm cov hlau kom rov tsim dua hauv kev txhais lus.
Txawm hais tias cov hlau ntshiab yog nyiaj-dawb, hlau peb feem ntau pom hauv tib neeg txoj haujlwm niaj hnub thiab lub neej yog xim dub. Qhov no yog vim hais tias saum npoo ntawm hlau yog them nrog ib tug dub oxide zaj duab xis: ferric oxide. Nws yog precisely vim hais tias ntawm no oxide zaj duab xis uas ua rau tib neeg lub tswv yim ntawm dub, yog li ntawm no foundations, "Ferrous Metals" yog creatively txhais li "dub hlau".
Nrog "ferrous hlau", txiav txim siab tias nyiaj yog dawb, kub yog golden, tooj liab yog daj, thiab lead yog grey, "non-ferrous hlau" nthuav tawm cov yeeb yuj kho qhov muag, yog li "Nonferrous Metals" yog txhais ua "non-ferrous hlau" .
Txij thaum ntawd los, "ferrous metals" thiab "non-ferrous metals" tau dhau los ua "Ferrous Metals" thiab "Nonferrous Metals" hauv Suav thiab tau nthuav dav hauv kev lag luam.
Lub ntsiab txhais ntawm "non-ferrous metals" nyob rau hauv cov khoom siv hlau-Non-ferrous hlau cov ntaub ntawv ntawm "Da Ci Hai (Material Science Volume)" yog: "Lub npe ntawm tag nrho cov hlau ntsiab nyob rau hauv lub sij hawm ntawm lub ntsiab lus tshwj tsis yog hlau, chromium thiab manganese tuaj yeem faib ua plaub pawg: (1) cov hlau hnyav, suav nrog tooj liab, txhuas, zinc, npib tsib xee, thiab lwm yam .; hlau, xws li kub, nyiaj, platinum, thiab lwm yam .; kev lag luam, lawv feem ntau tau muab cais los ntawm cov hlau tsis muaj hlau rau hauv ib pawg. "
"Cov hlau tsis tshua muaj" txhais tau tias: "Tseem hu ua 'cov hlau tshiab'. Cov hlau uas tsis tshua muaj nyob hauv lub ntiaj teb cov pob zeb, tau faib me me, nyuaj rau kev ua kom zoo dua qub, thiab muaj cov ntawv siv lig. Txog tam sim no, tsis muaj kev sib koom ua ke thoob ntiaj teb cov qauv kev faib tawm. Cov. Raws li Suav xyaum, feem ntau cov hlau tsis tshua muaj sib faib ua ke, tsis tshua muaj cov hlau ua hlau, tsawg cov hlau hluav taws xob, cov hlau hluav taws xob tsis tshua muaj peev xwm thiab cov haujlwm tshwj xeeb. Lawv Cov ntawv thov feem ntau suav nrog kev siv tub rog siv tshuab, kev siv hauv kev lag luam, thiab kev siv ua liaj ua teb, kev lag luam tertiary thiab kev siv high-tech.
"Rare radioactive metals" txhais tau hais tias: "Kuj hu ua 'radioactive rare metals'. Ib qeb ntawm cov hlau tsis tshua muaj, suav nrog cov hlau tsis tshua muaj hluav taws xob ... thiab tib neeg tsim cov khoom siv hluav taws xob ..."
Raws li lub ntsiab txhais ntawm "non-ferrous hlau" nyob rau hauv "Da Ci Hai", tag nrho cov hlau nyob rau hauv lub sij hawm lub sij hawm tsuas yog cov uas tsis yog-metallic ntsiab thiab peb ferrous hlau "hlau, chromium thiab manganese" yog non-ferrous hlau.
Cov lus Askiv txhais ntawm "nonferrous metals" yog "Nonferrous Metals", uas kuj yog raws li cov ntsiab lus hauv "Da Ci Hai".
Yog li ntawd, lub ntsiab txhais ntawm "non-ferrous metals" yuav tsum yog: lub npe ntawm tag nrho cov hlau nyob rau hauv lub sij hawm ntawm lub ntsiab lus, tshwj tsis yog hlau, chromium thiab manganese.
