Daim ntawv thov thiab txheej txheem tsim khoom ntawm titanium daim txhuam cev
Daim txhuam cev titanium yog cov khoom siv raw rau titanium ua cov ntaub ntawv, feem ntau yog siv los tsim cov hlau titanium refined. Daim txhuam cev titanium feem ntau yog lub teeb grey hais nrog lub ntsej muag huv si thiab tsis pom kev suav nrog. Qhov purity (zoo) feem ntau yog 99.1-99.7. Nws yog daim txhuam cev zoo li titanium hlau uas ua los ntawm cov hlau thermal txo thiab yog cov khoom siv tseem ceeb rau kev tsim cov titanium alloys. Daim txhuam cev titanium ntau lawm yog qhov txuas yooj yim ntawm kev lag luam titanium. Nws yog raw khoom rau titanium cov ntaub ntawv, titanium hmoov thiab lwm yam titanium Cheebtsam.
1. Kev faib tawm ntawm daim txhuam cev titanium
Kev faib tawm ntawm daim txhuam cev titanium feem ntau yog nyob ntawm nws cov ntsiab lus impurity thiab microstructure. Cov impurities xws li Fe, Ni, thiab Cr nyob rau hauv daim txhuam cev titanium feem ntau yog los ntawm cov tshuaj tiv thaiv hlab ntsha, thiab cov impurities yuav enriched thaum lub sij hawm alloying txheej txheem ntawm daim txhuam cev titanium. Tsis tas li ntawd, lub macrostructure (qhov ntom los yog xoob) ntawm daim txhuam cev titanium tsis muaj dab tsi cuam tshuam nrog nws cov microstructure, theem thiab grain loj, tab sis txiav txim siab los ntawm lub cev ntau. Yog li ntawd, daim txhuam cev titanium tuaj yeem raug cais raws li nws cov ntsiab lus impurity thiab macroscopic ntom. Daim txhuam cev titanium tuaj yeem muab faib ua tsib qib raws li qhov sib txawv purities: WHTi 0 rau MHTi4.
2. Cov txheej txheem ntau lawm ntawm titanium daim txhuam cev
Kev tsim cov titanium daim txhuam cev tsuas yog siv magnesium thermal txo txoj kev (Kroll method), uas siv magnesium los txo titanium los ntawm titanium tetrachloride (TiCl4), thiab tom qab ntawd lub tshuab nqus tsev distills cov reactants cais titanium daim txhuam cev, magnesium thiab magnesium chloride kom tau txais high-purity titanium. daim txhuam cev. Cov txheej txheem no tau siv dav hauv ntau lub tebchaws thoob ntiaj teb, suav nrog Tuam Tshoj, Nyiv, Russia, thiab lwm yam.
Hauv cov txheej txheem tsim khoom tshwj xeeb, txo qis distillation yog cov txheej txheem tseem ceeb, uas ncaj qha txiav txim siab qhov kawg ntawm titanium daim txhuam cev cov khoom. Piv txwv li, Pangang Group siv inverted "U" thiab "I" hom txo distillation furnaces ntawm nws cov kab ntau lawm. Cov cuab yeej siv no daws cov teeb meem ntawm cov cua sov dissipation thiab tsis zoo ntawm cov titanium daim txhuam cev tiav los ntawm kev ua kom cov txheej txheem ua haujlwm zoo xws li kub, siab thiab pub mis thiab tso tawm. Tsis tas li ntawd, Pangang kuj tau qhia Ukrainian thev naus laus zis thiab txhim kho nws ua ke nrog cov xwm txheej hauv tsev, thiab tsim cov distillation thiab rectification residue hydrolysis thiab evaporation rov qab txheej txheem technology, txo titaniumization thiab distillation titaniumization technology.
Nyob rau hauv lub neej yav tom ntej, txoj kev loj hlob qauv ntawm titanium daim txhuam cev ntau lawm technology yuav mus rau tus nqi qis, tsis muaj impurity cov ntsiab lus thiab ntsuab manufacturing. Piv txwv li, molten ntsev chlorination, txhuas hmoov vanadium tshem tawm thiab ntau theem tank magnesium electrolysis tshuab yog tsim nyog rau zus tau tej cov sponge titanium. Tsis tas li ntawd, nrog kev nce qib ntawm thev naus laus zis, cov cuab yeej tsim khoom ntawm daim txhuam cev titanium kuj tseem ua haujlwm loj thiab automated los txhim kho kev tsim khoom thiab txo cov nqi.
3. By-products ntawm daim txhuam cev titanium
Thaum lub sij hawm ntau lawm txheej txheem ntawm daim txhuam cev titanium, ntau yam khoom thiab by-products yog generated. Cov hauv qab no yog cov khoom tseem ceeb thiab cov khoom siv los ntawm:
1>Daim txhuam cev titanium
Cov khoom kawg ntawm daim txhuam cev titanium ntau lawm yog xoob thiab ntxeem tau daim txhuam cev zoo li titanium hlau, uas feem ntau yog siv los npaj cov khoom siv titanium, xws li titanium ingots lossis titanium hmoov.
2>Ua kua magnesium chloride
Nyob rau hauv tus txheej txheem ntawm kev tsim daim txhuam cev titanium los ntawm txoj kev Kroll, kua magnesium chloride yog tsim los ntawm cov khoom lag luam. Qhov no yog cov roj kub kub uas tuaj yeem rov ua dua los txo cov pa phem ib puag ncig.
3>Magnesium oxide
Magnesium oxide hmoov tuaj yeem npaj tau los ntawm roj-theem oxidation cov tshuaj tiv thaiv ntawm magnesium chloride, ib qho khoom los ntawm daim txhuam cev titanium. Txoj kev no tuaj yeem siv tau zoo siv magnesium chloride thiab tsim cov purity magnesium oxide.
4>Chlorine
Nyob rau hauv cov txheej txheem tshiab huv huv ntawm daim txhuam cev titanium, gaseous magnesium chloride tuaj yeem ncaj qha oxidized thiab pyrolyzed los npaj high-purity magnesium oxide thiab chlorine. Cov tshuaj chlorine tuaj yeem siv dua hauv kev txo qis TiCl4.
Titanium daim txhuam cev muaj ntau yam kev siv, suav nrog aerospace, tshuaj nroj tsuag, seawater desalination nroj tsuag thiab pej xeem teb. Nrog rau txoj kev loj hlob ntawm kev lag luam thoob ntiaj teb thiab kev xav tau ntau ntxiv rau cov khoom siv thev naus laus zis, titanium daim txhuam cev ua lag luam tau qhia txog kev loj hlob sai.
