Ntawm qhov chaw ntawm titanium thiab titanium alloy kev lag luam saw, muaj lus dag zoo li lub teeb grey particle - daim txhuam cev titanium. Nws muaj ib qho kev ntxhib los mos, xoob kov, thiab ib qho chaw npog nrog pom me me pores. Nws yog precisely no tshwj xeeb, ntuj daim txhuam cev zoo li ntxeem tau qauv uas muab nws cov duab thiab tsim nyog lub npe ntawm "sponge titanium". Txawm li cas los xij, hauv qab daim ntawv no zoo li tsis pom tseeb yog lub zog nrawm uas ua rau muaj kev loj hlob ntawm kev lag luam siab niaj hnub no. Daim txhuam cev titanium yog qhov tseem ceeb tshaj plaws thiab cov khoom siv tseem ceeb tshaj plaws rau kev tsim cov khoom siv hlau titanium (titanium ingots, titanium rods, titanium phaj, titanium xov hlau, thiab lwm yam) thiab titanium hmoov. Nws qhov zoo, zoo li cov noob, hauv paus txiav txim siab lub zog, toughness, corrosion kuj, vuam kev ua tau zoo, thiab txawm tias qhov kev pabcuam zoo tshaj plaws thiab kev siv ciam teb ntawm cov khoom titanium tom ntej.
Txhawm rau kom ua tau raws li qhov xav tau ntawm cov dej ntws sib txawv, lub ntiaj teb ntawm daim txhuam cev titanium tau muab faib ua xya theem raws li cov qauv nruj heev: los ntawm qib siab kawg 0A, mus rau qib 0, qib 1, qib 2, qib 3, qib 4, thiab thaum kawg theem 5. Qhov kev muab qhab nia no tsis yog daim ntawv sau yooj yim, tab sis ob qhov kev ntsuas qhov tseeb raws li qhov tseeb:
1, Tshuaj muaj pes tsawg leeg: Qhov no yog tus yuam sij rau kev txiav txim siab purity ntawm daim txhuam cev titanium. Lub hom phiaj yog nyob rau sab sauv txwv ntawm cov ntsiab lus ntawm impurity tseem ceeb xws li oxygen (O), nitrogen (N), hlau (Fe), carbon (C), thiab chlorine (Cl). Cov ntsiab lus no zoo li "toxins", thiab txawm tias nyob rau hauv cov lej, lawv tuaj yeem ua rau lub cev tsis zoo, tawv tawv, qaug zog, ua haujlwm kub, thiab vuam kev ua tau zoo ntawm titanium alloys. Cov qib siab dua (xws li 0A, 0 qib), qhov nruj dua qhov kev ua siab ntev rau cov ntsiab lus impurity, xav tau cov ntsiab lus tsawg heev.
2, Brinell hardness: Hardness yog ib qho kev xav ncaj qha ntawm cov khoom siv yas deformation muaj peev xwm thiab muaj feem xyuam nrog cov ntsiab lus impurity (tshwj xeeb tshaj yog cov ntsiab lus interstitial oxygen thiab nitrogen). Qhov ntau impurities muaj, qhov hardness ntau dua, thiab cov khoom siv ua haujlwm tsis zoo (xws li forging thiab dov). High qib sponge titanium (0A, 0 qib) yuav tsum muaj Brinell hardness nqi tsawg heev los xyuas kom meej nws cov kev ua tau zoo tom ntej thiab cov khoom kawg.
