Video: Cov hlau nplaum puas lo rau txhuas?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Coj (Pb) yog hlau hnyav heev, tab sis zoo li kub, coj tsis yog magnetic. Los ntawm kev txav ib qho muaj zog heev hlau nplaum dhau ib daim lead ua tau tiag ua rau cov coj txav mus. Cov yees duab hauv qab no qhia tau tias lead ua kev sib tham nrog cov hlau nplaum , lwm yam hlau, xws li txhuas, tooj dag, thiab, tooj liab muaj qhov pom kev sib cuam tshuam ntau dua.
Tsis tas li ntawd, cov hlau nplaum dab tsi lo rau?
Cov hlau uas nyiam cov hlau nplaum yog hu ua ferromagnetic hlau. Cov hlau no yog tsim los ntawm ntau lab tus tib neeg atoms uas muaj cov khoom sib nqus, txhais tau tias cov hlau nplaum lo rau lawv ruaj khov. Qee qhov piv txwv yog hlau , cobalt , npib tsib xee, hlau (vim nws yog feem ntau hlau ), manganese, gadolinium thiab lodestone.
Tsis tas li ntawd, cov hlau nplaum puas lo rau cam khwb cia hlau? Hauv lawv lub xeev ntuj, cov hlau xws li tooj dag, tooj liab, kub thiab nyiaj yuav tsis nyiam hlau nplaum . Qhov no yog vim lawv tsis muaj zog hlau pib nrog. Magnets nkaus xwb txuas lawv tus kheej kom muaj zog hlau xws li hlau thiab cobalt thiab yog vim li cas tsis yog txhua hom hlau ua tau ua cov hlau nplaum nplaum rau lawv.
Xav txog qhov no, puas yog hlau nplaum nplaum rau cov yeeb nkab txhuas?
A hlau nplaum yuav tsis yog lo rau ib lub kav dej . Yog tias qhov chaw seem yog tooj liab xim, zoo li ib lub nyiaj npib, koj cov kab kev pabcuam yog tooj liab. A hlau nplaum yuav tsis yog stick mus rau ib qho tooj liab cev . Yog hais tias qhov chaw scraped tseem yog dull grey, thiab a hlau nplaum nplaum rau saum npoo, koj cov kab kev pabcuam yog galvanized steel.
Cov hlau nplaum puas lo rau daim iav?
Lub cev… koj ua tau kua nplaum hlau nplaum mus rau iav . Koj ua tau polish ib hlau nplaum … cia hais tias koj siv cov khoom siv ferromagnetic li cov iav los yog iav -rov qab… ces magnetize nws. Yog koj xav tau stick ib tes iav mus rau ib tug hlau nto ces gluing yuav ua hauj lwm zoo.
Pom zoo:
Puas yog hematite lo rau cov hlau nplaum?
Siv: Qhov tseem ceeb tshaj plaws ore ntawm hlau. Pigment
Cov hlau nplaum puas yuav lo rau galvanized hlau?
"Galvanized" tsuas yog txhais tau hais tias muaj cov zinc txheej sab nraud ntawm cov Hlau. Yog hais tias cov hlau ismagnetic pib nrog, ces nws tseem yuav sib nqus tom qab galvanizing. Txij li feem ntau tsis muaj laj thawj rau galvanizestainless hlau, cov lus teb yuav luag ib txwm "yog, galvanized steel yog sib nqus"
Cov hlau nplaum ruaj khov puas poob hlau nplaum?
Yog lawm, nws muaj peev xwm ua tau rau cov hlau nplaum ruaj khov kom poob nws cov hlau nplaum. Muaj peb txoj hauv kev rau qhov no tshwm sim: 2) Ntawm qhov demagnetizing magnetic teb: cov hlau nplaum tas mus li nthuav tawm cov yam ntxwv hu ua coercivity, uas yog lub peev xwm ntawm cov khoom siv los tiv thaiv demagnetized los ntawm kev siv magnetic teb
Koj puas tuaj yeem muab cov hlau nplaum tso rau ntawm lub thawv fuse?
Ib lub hlau nplaum txav mus nyob ze ntawm lub thawv hlau sib txuas yuav ua rau me me surges tam sim no nyob rau hauv lub thawv phab ntsa. Txhua lub hlau nplaum koj yuav muaj nyob ib puag ncig lub tsev tsis tuaj yeem cuam tshuam nrog koj cov khoom siv hluav taws xob hauv tsev
Cov qauv dab tsi thaum koj nchuav hlau filings nyob ib ncig ntawm cov hlau nplaum?
Thaum cov ntaub ntawv hlau tau nchuav ib ncig ntawm cov hlau nplaum, cov duab ntawm cov hlau nplaum raug ntes. Vim li cas qhov no tshwm sim? Tsis tas li ntawd, cov ntaub ntawv hlau no cais ua cov qauv pom tseeb ntawm cov kab