Titanium Vs Stainless hlau hauv cov khoom siv tshuaj: Kev Lag Luam Kev Lag Luam thiab Kev Txiav Txim Siab
Jul 29, 2026| Kev xaiv cov khoom siv rau cov khoom siv tshuaj yog hloov los ntawm "tus nqi qis tshaj plaws" mus rau dual -tsav mus kom ze ntawm "lub neej voj voog nqi (LCC) + kev ruaj ntseg khoom". 316L/304 stainless hlau tseem yog qhov kev xaiv tseem ceeb rau cov kua qaub dav dav- puag thiab nruab nrab- qis chloride ion tej yam kev mob, suav txog kwv yees li 41% ntawm cov khoom siv. Txawm li cas los xij, hauv cov xwm txheej xws li chlor-alkali, PTA, ntub dej metallurgy, urea-ammonium carbonic acid daws, siab chloride ions thiab oxidizing acids, pitting, crevice corrosion thiab kev ntxhov siab tawg ua rau cov khoom siv kaw thiab hloov pauv hauv 2-3 xyoos, ua rau cov khoom poob qis tshaj qhov sib txawv. Pib txij xyoo 2026, ntsuab chemistry, hydrogen zog, thiab cov tshuaj hluav taws xob tau tsav kev nkag mus ntawm cov hlau tsis tshua muaj xws li titanium thiab tantalum-niobium ntawm kev loj hlob ntawm 5.5%, thiab cov logic kev yuav khoom tau hloov mus rau qhov sib xyaw ntawm "titanium rau qhov tseem ceeb corrosion thiab stainless hlau".
Ib tug West Indian chlor-alkali nroj tsuag Ameslikas siv 316L stainless hlau txias tubes. Nyob rau hauv siab -concentration NaOH + chloride ion tej yam kev mob, taw tes corrosion tshwm sim tom qab 3 xyoos, ua rau ib tug kaw + tube hloov + ntau lawm poob ntawm kwv yees li $220,000. Tom qab hloov mus rau pebTuam Tshoj Super Tech Gr2 titanium raj, kev ua haujlwm tas mus li tau siv sijhawm li 12 xyoos yam tsis muaj qhov xau, thiab cov nqi kho mob raug txo los ntawm 85%.
A West European PTA plant operated at 220°C with acetic acid + bromide conditions. The 316L tubes needed to be replaced every 4 years. With Gr2 seamless titanium tubes, the heat transfer efficiency increased by 12% and energy consumption decreased by 15%. Over a 20-year period, the total cost of ownership (TCO) was actually 22% lower. It should be noted that titanium is not resistant to >30% boiling nitric acid, qhuav chlorine gas, thiab hydrofluoric acid; rau cov xov xwm zoo li no, tantalum / hastelloy alloys yuav tsum tau siv los hloov kho qhov muag tsis pom.
Kev tiv thaiv ib puag ncig siab thiab kev ua lag luam qis qis ua rau muaj kev cuam tshuam ntau dua rau EN 10204 3.1, ASME, thiab RoHS cov ntaub ntawv taug qab, thiab nyiam Gr2 / Gr7 ntev- kev daws teeb meem lub neej; qhov precision manufacturing lag luam qhov tseem ceeb ± 0.01mm CNC thiab argon shielding vuam, thiab nyiam ua ke ntawm Gr5 txav qhov chaw thiab Gr2 nyob ruaj ruaj; tus nqi- cov kev lag luam tawm tshiab pib siv 316L los tswj CAPEX thiab maj mam hloov titanium hauv cov reactor tseem ceeb sab hauv; siab- kev loj hlob kev tsim khoom tsom rau lub sijhawm xa khoom thiab cov khoom muag hauv zos, thiab lees txais Gr2 + titanium steel composite daim hlau kom txo nqi. Cov ntsiab lus mob tshwm sim yog: nyuaj rau kev sib koom tes ntau tus neeg muag khoom, lub sijhawm xa khoom ntev rau cov khoom siv, thiab cov hlau tsis tshua muaj.
Ib - nres kev daws teeb meem los ntawmTuam Tshoj Super Tech Co., Ltd.
Txij li xyoo 2013, peb tau ua tiav tag nrho cov txheej txheem los ntawm melting → forging → tshav kub kho → 3/4/5 -axis CNC → argon tiv thaiv TIG vuam → kua qaub ntxuav thiab passivation → sib dhos, tsis muaj intermediaries. Rau tib cov specifications, peb cov nqi yog 20-40% qis dua cov nyob sab Europe thiab America. Peb cov khoom lag luam suav nrog: titanium thiab titanium alloys (Gr1 / Gr2 / Gr5 / Gr7 / Gr12, daim hlau, tuav, raj, reactor internals, impellers, nplawm shafts, twj tso kua mis, cov raj kub exchanger, flange fasteners); tungsten thiab molybdenum (cov khoom cua sov, cov khoom siv hluav taws xob, siab -cov khoom kub ntawm lub cub tawg); hluavtaws pob zeb diamond; siab-purity tantalum/niobium/zirconium (muaj zog txo cov kua qaub, HF khoom nruab nrab); cobalt-chromium-molybdenum kho mob hlau. Cov khoom muag thiab lub sij hawm xa tuaj: 50+ cov qauv specifications hauv Tshuag, Gr2 daim hlau (0.5–10mm), Gr5 tuav (Φ6–50mm) muaj tam sim ntawd. Cov khoom lag luam raug xa mus thoob ntiaj teb hauv 7-15 hnub; tsis yog- cov khoom lag luam tau txais DFM txoj kev npaj thiab cov lus hais raws li kos duab / DWG / STEP hauv 24-48 teev tom qab kev tsim qauv raug txheeb xyuas, thiab kev tsim khoom loj tuaj yeem ua tiav tom qab kuaj pom tseeb. Ua raws: ASTM B265 / B348 / B381, ASME SB, EN 10204 3.1, PMI / UT / CMM kev tshuaj xyuas tag nrho, SGS / BV xaiv tau. Peb tau ua haujlwm tshaj 30 lub teb chaws petrochemical, kws tshuaj, thiab cov neeg siv khoom semiconductor. Cov khoom muag hauv lub teb chaws Yelemees thiab Asmeskas tau raug txo kom txo cov sij hawm xa khoom hla ciam teb.
Daim ntawv txiav txim yuav khoom
High chloride / oxidizing acid / dej hiav txwv → Gr2 / Gr7 titanium; txo cov kua qaub + HF → tantalum / niobium; General acids thiab bases → 316L; siab -lub zog txav qhov chaw → Gr5; ntev - lub sij hawm loj cov cuab yeej → titanium steel composite phaj nqi tswj. Kev xaiv cog yog nyob ntawm: tus kheej- kev tsim khoom traceability, ua tiav cov hlau tsis tshua muaj, kev hloov kho + tus qauv hauv tib lub qhov rais, cov lus nug tob.