Cov Xov Xwm Titanium Hlau
Feem ntau ntawm cov qib yog cov hom ntawm alloy nrog ntau yam ntxiv ntawm piv txwv li aluminium, vanadium, npib tsib xee, ruthenium, molybdenum, chromium lossis zirconium rau lub hom phiaj txhim kho thiab / los yog sib txuas ntau yam cov yam ntxwv, tiv tshav kub, conductivity, microstructure, nkag, ductility , corrosion tsis kam thiab lwm yam.
Cov cuab yeej txhua yam ntawm cov khoom muag muag ntshiab yog qhov tseeb tswj hwm los ntawm" alloying" rau ntau theem ntawm oxygen thiab nitrogen kom tau txais cov zog sib txawv sib txawv li ntawm 290 txog 550 MPa. Rau siab zog dua cov txheej txheem alloying, piv txwv li Al thiab V yuav tsum tau ntxiv. Ti3Al2,5 V muaj lub zog tensile ntawm yam tsawg kawg nkaus 620MPa nyob rau hauv annealed mob thiab yam tsawg kawg nkaus 860 MPa nyob rau hauv lub txias raws li ua hauj lwm thiab kev ntxhov siab relieved mob. Qeb-qib qib titanium yog npe tag nrho alpha hauv cov qauv, whereas ntau ntawm cov alloys titanium muaj ob theem alpha + beta qauv. Tseem muaj cov titanium alloys nrog siab alloying sib ntxiv muaj tag nrho beta theem qauv. Thaum alpha alloys tsis tuaj yeem kho cua sov los ua kom muaj zog, qhov ntxiv ntawm 2,5% tooj liab yuav ua rau cov khoom siv uas teb rau cov kev daws kev kho thiab kev laus nyob zoo ib yam li txhuas-tooj.
Qeb 1 yog me ntsis purer dua Qib 2 (ntawm kwv yees li 99.8%), thiab yog li ntawd muaj qhov tshwm sim dua. Nws yog siv los ua cov saum npoo tiv thaiv (titanium) txheej hauv kev sib tsoo Clad (sib txuas) phaj lossis qhov chaw, thiab ntxiv rau cov khoom siv rau cov khoom ua rau hauv phaj& Ncej cov cua sov ua haujlwm hloov pauv, vim nws qhov peev xwm yuav tsum tau sib sib zog nqus.
Qeb 2 yog qhov feem ntau siv cov kev kawm qib CP (Ua Lag Luam Ntshav Ntshiab) Qib Kawm. Cov khoom lag luam suav nrog Tube (welded& seamless), Yeeb Nkab, Phaj, Ntawv / Sawb, Nqa, Ntaus, Twj thiab Valve lub cev. Nws yog kwv yees li 99.6% ntshiab thiab yog cov khoom siv thawj rau cov ntawv thov marine.
Qeb 5 yog qhov feem ntau siv cov titanium alloy. Nws muaj lub zog muaj zog heev tab sis kuj ductility tsawg. Daim ntawv thov tseem ceeb ntawm cov alloy no hauv cov dav hlau thiab cov dav hlau thiab hauv cov li qub rau cov khoom siv dag zog. Offshore siv yog loj hlob. Cov xaim yog weldable thiab nag lossis daus tuaj yeem tawv.
Qeb 9 yog lub zog siab dua lub zog, pib tsim los txhim kho kev txhim kho corrosion rau Kev Lag Luam Txheej Txheem Kev Ua Haujlwm (CPI) rau kev siv rau qhov chaw muaj teeb meem loj, tsim los tiv thaiv kev ua kom tsis muaj paug nyob ntawm pH tsawg thiab qhov kub tshaj rau 5000 ° F (2600 °) C) Quas). Nws muaj daim ntawv thov hauv kev pabcuam nkoj raws li cov kab nrig, muab cov kev txhim kho corrosion los ntawm cov roj sib txuas kub thiab txuas ntxiv (cov khoom hloov) lub neej thiab chaw nres nkoj txij li txhua 6 lub hlis mus rau ntau xyoo.
Qeb 23 yog Extra Extra Interstitial (ELI) version ntawm Qib 5. Nws yog siv qhov twg Kev Nyuaj Siab Kev Nyuaj Siab (SCC) yog kev txhawj xeeb, hauv daim ntawv thov uas qhov 6Al - 4V alloy feem ntau yuav xav tias yog cov khoom siv ntawm kev xaiv, TAB SIS qhov twg daim ntawv thov nyob rau hauv kev ntxhov siab. Cov interstitials qis dua (Fe, O2 thiab N2) muab qhov kev txhim kho tseem ceeb rau tshem tawm cov kev txhawj xeeb ntawm SCC.
