Zoo Siab
- Melting point
- Cov xeev thiab qhov tseem ceeb ntawm lawv cov kev hloov pauv
- Foundry
- Fusion piv txwv
- Xav paub ntxiv?
Cov kev sib xyaw suav nrog kev hloov pauv ntawm lub xeev ntawm cov teeb meem hauv xeev khoom rau kua. Hom kev hloov pauv no tshwm sim thaum qhov kub uas qhov teeb meem kis tau nce mus rau qhov kub thiab txias.
Thaum lub ntsiab lus no hla mus rau qhov kev coj rov qab, uas yog, thaum cov kua qis nws qhov kub kom txog thaum nws mus txog nws, nws ua kom khov qhov txawv txav tshwm sim.
Melting point
Qhov ntsuas kub uas tshuaj fusion tshwm sim yog qhov raug hu ua melting point, thiab cuam tshuam nrog qib siab ntawm sab nraud uas nws yog.
Lub ntsiab lus melting muaj lub luag haujlwm hauv tus yam ntxwv ntawm cov khib nyiab, uas yog tso cai txiav txim siab txog qib ntawm kev coj dawb huv uas qhov teeb meem muaj: thaum pom cov khoom tsis huv, lub ntsiab lus melting ntawm cov khoom sib xyaw poob tseem ceeb, yog li kev ua raws li cov yaj thaum cov txiaj ntsig theoretical tau ua tiav qhia txog kev huv ntawm cov khoom.
Cov xeev thiab qhov tseem ceeb ntawm lawv cov kev hloov pauv
Cov lub xeev khov kho thiab kua yog ob yam uas cov khoom pom tau los ntawm kev nkag siab:
Cov khib nyiab yog tus yam ntxwv muab kev tawm tsam kom hloov pauv cov duab thiab ntim, nrog cov khoom pom hauv kev sib koom ua ke thiab tau txais kev pom zoo
Cov kua, ntawm qhov tod tes, muaj a cov kua dej thiab sib xws nyob rau ntau qhov chaw siab. Qhov sib txawv ntawm tus yam ntxwv ntawm txhua tus Lub xeev ntawm kev sib sau ua ke Lawv ua lub peev xwm hloov pauv los ntawm ib qho mus rau lwm qhov los ntawm kev hloov pauv qhov ntsuas kub kom muaj txiaj ntsig zoo rau tib neeg.
Foundry
Muaj ntau thaj chaw uas siv tshuaj fusion siv, tab sis ntawm txhua tus ntawm lawv ib qho tshwj xeeb, uas yog hlau hlau.
Nws yog hu ua Foundry txheej txheem uas cov hlau hloov los ntawm cov khoom mus rau lub xeev ua kua, feem ntau yuav tsum tau qhia tom qab rau hauv kab noj hniav uas nws khov kho, muab lub cev tshiab rau qee yam uas hauv nws daim ntawv khov kho yuav tsis muaj txoj hauv kev los hloov nws.
Txog qhov no, qee zaum txheej txheem tshuaj yuav tsum tau nqa tawm uas tso cai mus cuag kub heev, xav tau los ntawm cov khoom siv no.
Fusion piv txwv
Hauv qab no yog cov npe piv txwv ntawm cov txheej txheem fusion, nrog cov tshuaj sib txawv thiab cov kub uas lawv hnov mob.
| Helium melting kub, ntawm -272 ° C. |
| Hydrogen melting kub, ntawm -259 ° C. |
| Cov dej khov yaj rau hauv cov dej ua kua, thaum qhov kub yog 0 ° C. |
| Nitrogen fusion, thaum nws nce mus txog -210 ° C. |
| Fusion ntawm arsenic, thaum nws nce mus txog 81 ° C. |
| Tshuaj chlorine melting kub ntawm -101 ° C. |
| Fusion ntawm bromine, thaum nws nce mus txog -7 ° C. |
| Melting ntawm osmium, thaum kub yog 3045 ° C. |
| Kev hloov pauv kub rau ua kua, ntawm 1064 ° C. |
| Molybdenum yaj, ntawm 2617 °. |
| Zirconium melting kub, 1852 ° C. |
| Melting kub ntawm francium, ntawm 27 ° C. |
| Boron yaj ntawm 2300 ° C. |
| Melting kub ntawm argon, ntawm -189 ° C. |
| Radon yaj, thaum nws nce mus txog -71 ° C. |
| Hloov cawv cawv ua kua, ntawm -117 ° C. |
| Neon melting kub, ntawm -249 ° C. |
| Chromium yaj ntawm 1857 ° C. |
| Kev tsim cov kua uranium, ntawm 1132 ° C. |
| Lutetium fusion, ntawm os 1656 ° C. |
| Fluorine fusion, thaum nws nce mus txog -220 ° C. |
| Mercury melting kub, ntawm -39 ° C. |
| Melting kub ntawm cov pa, ntawm -218 ° C. |
| Fusion ntawm stainless hlau, ntawm 1430 ° C. |
| Chloroform yaj ntawm 61.7 ° C. |
| Fusion ntawm gallium, thaum nws nce mus txog 30 ° C. |
| Rubidium melting kub, 39 ° C. |
| Tungsten melting kub, 3410 ° C. |
| Phosphorus melting kub, 44 ° C. |
| Potassium yaj ntawm 64 ° C. |
Xav paub ntxiv?
- Piv txwv ntawm Kev Hloov Lub Cev
- Piv txwv ntawm Solidification
- Piv txwv ntawm Evaporation
