Ntau tus neeg muag khoom tau hloov cov raj ntshiab titanium nrog titanium-clad steel composite raj los yog siab - hlau titanium scrap alloy raj los txiav nqi. Cov khoom cuav no muaj kev tiv thaiv corrosion tsis zoo, phab ntsa sai sai thinning, hnyav hlau ion nag lossis daus, thiab nquag xau hauv fermentation tso tsheb hlau luam. Tsab ntawv xov xwm no qhia txog ntau yam - theem kev txheeb xyuas suav nrog kev soj ntsuam zoo li, kev sim yooj yim nrawm nrawm, kuaj xyuas qhov ntsuas pom thiab kev ua pov thawj puas tsuaj, nrog rau cov qauv kev sib cais meej rau kev soj ntsuam cov khoom tuaj.
1. Kev kuaj pom pom & tactile ua ntej (ntawm -kev txiav txim siab sai yam tsis muaj cuab yeej)
1.1 Nto metallic luster sib txawv
Qhov tseeb TA1/TA2 ntshiab titanium Uniform matte nyiaj- grey metallic luster tom qab polishing; qhov saum npoo yog mos, tsis muaj dazzling txias dawb lub teeb. Tom qab ntev - lub sij hawm nruab nrab kev sib cuag, nws hloov lub teeb grey passive zaj duab xis discoloration yam tsis muaj xeb liab me ntsis.
Titanium-clad steel inferior tube Cov cheeb tsam hauv cheeb tsam pom cov xim dawb ci ci tom qab khawb me ntsis sib tsoo; Thaum cov txheej txheej titanium nyias nyias tawm, cov pa roj carbon steel sab hauv tau sai sai ua cov txiv kab ntxwv - liab xeb stains hauv huab cua ntub.
High-hlau recycled titanium alloy Surface luster yog grey tsaus thiab tsis sib xws; ntau me me dub impurity me ntsis nyob rau hauv lub raj phab ntsa; Tom qab CIP acid ntxuav, tsaus pitting corrosion me ntsis tshwm nyob rau hauv ib lub sij hawm luv luv.
1.2 Qhov hnyav piv txoj kev (tib lub raj tshwj xeeb, sib piv intuitive)
Nyob rau hauv tib txoj kab uas hla, phab ntsa thickness thiab ntev:
Ntshiab titanium ceev 4.51 g / cm³, lub teeb yuag;
Carbon steel ntom 7.85 g / cm³, titanium-clad steel tag nrho qhov hnyav 30% ~ 40% hnyav dua li ntshiab titanium raj ntawm tib qhov loj. Txoj kev ua haujlwm: Ntsuas qhov ntsuas kub ua tiav ntawm tus qauv DN50 1.8m ntev; Yog hais tias qhov hnyav tshaj tus qauv TA2 raj hnyav los ntawm ntau tshaj 25%, nws yog xav tias titanium-clad steel composite khoom.
1.3 Weld tsos kev txheeb xyuas
Ntshiab titanium argon shield vuam: Weld nto nyiaj -dawb los yog lub teeb golden, du arc hloov, tsis muaj dub oxide hlawv txheej thaum vuam tiv thaiv tiav; weld thiab raj lub cev luster zoo ib yam.
Titanium-clad steel welding: Lub vuam kub kub kub los ntawm cov titanium hauv ob sab phlu, cov hlau sab hauv melts thiab cov ntaub ntawv dub slag suav nrog, weld nto muaj pom tseeb dub nkig txheej, yooj yim rau poob thaum polished.
High-hlau alloy vuam: Weld nthuav tawm xiav tsaus- xim oxidation xim dub, ntau qhov hws me me thiab cov kab nrib pleb pom hauv qab iav.
2. Portable ntawm -qhov chaw kuaj tshuaj sai sai (cov tshuaj reagent yooj yim, tsis yog-kev kuaj ntsuas)
Kev kuaj reagent configuration: 10% dilute hydrofluoric acid trace test kua (micro-tej nkaus xwb, tsis muaj tag nrho soaking)
Cov kauj ruam ua haujlwm:
Polish thaj tsam me me ntawm lub raj sab nrauv phab ntsa nrog 800 mesh nplua sandpaper kom tshem tawm cov zaj duab xis saum npoo av;
Tso ib qho micro-tej cov kua ua kua rau ntawm qhov chaw polished, soj ntsuam cov tshuaj tiv thaiv tsis pub dhau 10 vib nas this:
TA1 / TA2 ntshiab titanium tiag tiag: qeeb me ntsis npuas tiam, kua hloov faint grey, tsis muaj kev kub ntxhov ceev; TA1 cov tshuaj tiv thaiv qeeb dua TA2 vim cov ntsiab lus hlau qis.
Titanium-clad steel: Thaum cov kua nkag mus rau hauv titanium txheej los tiv thaiv cov hlau, kev kub ntxhov tshwm sim tam sim ntawd, cov kua ua kua tig dub nrog cov dej nag lossis xeb.
High-hlau recycled titanium alloy: ceev bubbling, kua sai tig tsaus grey-dub, seem pom tseeb dub corrosion residue tom qab so.
Kev ceeb toom txog kev nyab xeeb: Tsuas yog siv micro- tso sampling, hnav hnab looj tes tiv thaiv thiab tiv thaiv qhov muag, cov kua khib nyiab sau rau hauv nruab nrab.
3. Portable XRF spectral ceev nrhiav kom tau (feem ntau cov khoom tuaj soj ntsuam tus qauv rau factories)
Qauv qauv: Random sampling 10% ib batch, ntes lub raj lub cev thiab weld cais, sau Fe, Ti, Al, V ntsiab ntsiab lus.
Cov qauv tsim nyog rau cov khoom siv tiag
TA1 Qib 1 ntshiab titanium: Ti Ntau dua lossis sib npaug li 99.35%, Fe Tsawg dua lossis sib npaug li 0.08%, tsis pom Al / V alloy ntsiab lus;
TA2 Qib 2 ntshiab titanium: Ti Ntau dua lossis sib npaug 99.20%, Fe Tsawg dua lossis sib npaug rau 0.15%, tsis muaj Al / V;
Kev txiav txim cuav cuav
Titanium-clad steel: XRF pom Fe pawg feem ntau tshaj 1.0% ntawm kev sib tsoo nkag mus; Ti cov ntsiab lus poob sharply, hlau ntsiab dominant.
Siab - hlau seem titanium alloy: Fe＞0.20%, deb tshaj TA2 tus qauv txwv; Cov khoom ib nrab muaj cov kab Al / V impurity los ntawm cov khoom sib xyaw ua ke.
Ti-6Al-4V alloy cuav: Tshawb xyuas Al≈6%, V≈4%, txwv tsis pub fermentation cua sov raj.
4. Laboratory destructive tag nrho muaj pes tsawg leeg tsom xam (qhov kawg arbitration txheeb xyuas rau kev tsis txaus siab zoo)
Txiav cov qauv me me rau kev kho qhov muag emission spectroscopy (OES) tag nrho cov ntsiab lus tsom xam, kuaj C, N, H, Fe, Al, V impurity cov ntsiab lus ib qho los ntawm ib qho, piv nrog lub teb chaws tus qauv GB / T 3620.1 ntshiab titanium kev faib tawm index.
Kev txiav txim siab tsis tsim nyog: Ib qho impurity tshaj li tus qauv txwv ntawm TA1/TA2; muaj aluminium, vanadium alloy ntsiab.
Titanium-clad steel qauv ntoo khaub lig-section soj ntsuam nyob rau hauv metallographic microscope: Obvious ob- txheej txheem txheej txheej txheej nyias titanium + puab carbon steel substrate, ntshiab interface sib cais kab.
5. Kev ua kom zoo corrosion simulation ceev (simulate fermentation CIP ib puag ncig)
Muab cov qauv kuaj hauv 4% citric acid + 5% sodium hydroxide alternating ncig ncig ib puag ncig ntawm 50℃rau 72h nruam nrawm kuaj:
Tiag tiag TA1 / TA2: Tsuas yog lub teeb grey passive zaj duab xis hloov pauv, tsis muaj pitting, tsis pom tseeb qhov hnyav tom qab ntxuav.
Titanium-clad steel: Txheej tev tawm ib nrab, cov hlau sab hauv rusts tiag, pom tseeb poob, xeb sediment pollutes daws.
High- hlau inferior titanium alloy: ntom pitting corrosion faib rau saum npoo, tov turbid nrog grey hlau precipitate.
6. Muaj kev pheej hmoo zais ntawm cov khoom siv hluav taws xob cuav hauv fermentation ntau lawm
titanium{0}}clad steel Nyias titanium hauv ob sab phlu yooj yim puas los ntawm kev sib tsoo, particle abrasion; sab hauv steel sai rusting ua rau nruab nrab hlau ion tshaj - qauv, fermentation broth scrapped; Kev nkag mus hauv zos hauv 6 ~ 12 lub hlis ntawm kev ua haujlwm.
Siab -hlau recycled titanium alloy Ntau hlau impurities rhuav tshem passive zaj duab xis compactness; hnyav pitting corrosion nyob rau hauv acid- puag alternating CIP, kev pab cuam lub neej tsuas yog 1/3 ntawm tus qauv TA2 raj; nruam hlau ion dissolution tsis ua tshuaj GMP tshuaj xyuas.
Ti-6Al-4V alloy cuav Aluminium thiab vanadium cov ntsiab lus yaj nyob rau hauv cov organic acid nruab nrab, hnyav hlau residues tshaj cov zaub mov thiab kws tshuaj kev nyab xeeb txwv, batch khoom rejection kev pheej hmoo.
7. Kev xa khoom tuaj xyuas cov qauv ua haujlwm ntws
Batch sampling → hnyav hnyav piv + nto luster & weld pom kev soj ntsuam;
Cov Khoom Muag Khoom Muag: Portable XRF spectral sai nrhiav kom tau, sau cov ntaub ntawv keeb kwm;
Cov qauv kev tsis sib haum xeeb: Laboratory OES tag nrho muaj pes tsawg leeg metallographic destructive arbitration test;
random sampling ib nrab batch: Accelerated acid-base corrosion simulation test rau kev txheeb xyuas theem nrab.
表格
| Kev Qhia Txog Tus Kheej | Tiag tiag TA1 / TA2 Ntshiab Titanium | Titanium{0}}Clad Steel Counterfeit | Siab -Iron Recycled Titanium Alloy |
|---|---|---|---|
| Ntog luster | Uniform mos nyiaj grey, tsis muaj xeb me ntsis | Local ci steel luster, yooj yim txiv kab ntxwv xeb tom qab kos | Tsaus grey tsis sib npaug, tawg ua paug dub impurity dots |
| Tib yam -spec hnyav | Lub teeb, standard luj benchmark | 30% ~ 40% hnyav dua titanium ntshiab | Me ntsis hnyav dua li tus qauv TA2 |
| XRF hlau cov ntsiab lus | TA1 Fe Tsawg dua lossis sib npaug li 0.08%; TA2 Fe Tsawg dua lossis sib npaug li 0.15% | Fe ＞ 1.0% ntawm txheej puas lawm | Fe 0.20% |
| Micro-poob acid test | Slow me bubbling, lub teeb grey kua | Nroj tsuag bubbling, dub xeb precipitate | Fast bubbling, tsaus dub residual residue |
| Accelerated CIP corrosion xeem | Tsis muaj pitting, negligible poob phaus | Txheej tev tawm, xeb loj heev | Nthuav nto pitting, hlau nag lossis daus |
Cov ntsiab lus luv luv
Cov khoom cuav titanium-clad steel thiab siab- hlau seem alloy cua sov tubes muaj kev phom sij txaus ntshai xws li kev ua haujlwm luv luv thiab nruab nrab hnyav hlau sib kis, uas cuam tshuam rau fermentation ntau lawm kev ruaj ntseg thiab cov khoom tsim nyog tus nqi. Cov tuam txhab lag luam yuav tsum tsim kom muaj ntau yam - txheej txheej kev tshuaj xyuas cov txheej txheem sib txuas cov kev tshuaj ntsuam xyuas, portable spectral sai nrhiav kom tau thiab kuaj kev puas tsuaj, nruj me ntsis siv titanium caij thiab hlau impurity cov ntsiab lus ntau npaum li cas, thiab tag nrho thaiv inferior cov khoom cuav nkag mus rau hauv ntau lawm tso tsheb hlau luam los ntawm kev sib txuas.
