Cov ntaub ntawv hlau: feem ntau muab faib ua cov hlau ntshiab thiab alloy ob pawg.
1. Lub cev muaj zog ntawm cov hlau
(1) nyob rau hauv chav tsev kub, nws yog feem ntau yog khoom (mercury yog kua) thiab nws muaj xim hlau luster;
(2) Siab ceev thiab hardness, siab melting thiab boiling point;
(3) Feem ntau ntawm lawv yog nyiaj-dawb (tooj liab yog purplish liab, kub yog daj);
(4) zoo thermal conductivity, hluav taws xob conductivity, ductility;
2. Hlau yog qhov zoo tshaj plaws
(1) Aluminium: cov hlau ntau tshaj plaws nyob rau hauv lub ntiaj teb crust;
(2) Calcium: cov hlau ntau tshaj plaws hauv tib neeg lub cev;
(3) Hlau: cov hlau uas muaj cov khoom lag luam loj tshaj plaws hauv ntiaj teb;
(4) Nyiaj: cov hlau uas zoo tshaj plaws hluav taws xob thiab thermal conductivity;
(5) Chromium: cov hlau uas siab tshaj plaws hardness;
(6) Tungsten: cov hlau nrog qhov siab tshaj plaws melting point;
(7) Mercury: hlau nrog qhov qis tshaj plaws melting point;
Alloy
1, txhais: nyob rau hauv cov hlau cua kub fusion ntawm ib co hlau los yog non-hlau thiab muaj hlau yam ntxwv ntawm cov khoom, belongs rau cov sib tov.
2, cov yam ntxwv: feem ntau hais lus, lub melting point ntawm cov alloy yog qis dua cov khoom, lub hardness yog loj dua cov khoom, thiab corrosion kuj zoo dua.
3, npr.
(1) Alloy hlau:
Npua hlau (carbon 2% ~ 4.3 feem pua)
Hlau (cov ntsiab lus carbon 0.03% ~ 2%)
Qhov txawv: txawv cov ntsiab lus carbon.
(2) Copper alloy
Brass: Ib qho alloy ntawm tooj liab thiab zinc.
Bronze: Ib qho alloy ntawm tooj liab thiab tin.
(3) Titanium alloy
Nws raug suav hais tias yog cov khoom siv hlau tseem ceeb hauv lub xyoo pua 21st.
Qhov zoo: siab melting point, tsawg ntom, zoo plasticity, yooj yim ua, zoo mechanical zog, thiab lwm yam.
Daim ntawv thov: dav siv nyob rau hauv dav hlau cav, kev kho mob ntxiv, pob txha pob txha, hiav txwv ships, thiab lwm yam.
(4) Aluminium alloy
Magnesium, tooj liab, thiab zinc ntxiv rau txhuas los ua alloys.
Daim Ntawv Thov: Tsim cov dav hlau thiab tsheb thauj khoom, thiab lwm yam.
Hu rau:
Yog tias koj muaj lus nug, thov koj xav tiv tauj peb. Cov sijhawm ua haujlwm: 8:30 teev sawv ntxov txog 17:30 teev tsaus ntuj
E-mail: zhangjixia@bjygti.com
