Qib 2 Titanium vs Qib 7 Chemical Composition
Qib 7 yog qhov tseem ceeb Qib 2 titanium nrog 0.12-0.25% palladium (Pd) ntxiv. Qhov kev sib ntxiv me me no- tsawg dua li ib feem peb ntawm ib feem pua-ua kom muaj kev tiv thaiv corrosion hauv kev txo cov kua qaub ib puag ncig uas Qib 2 yuav ua tsis tiav.
| Element (wt%) | Qib 2 (UNS R50400) | Qib 7 (UNS R52400) | Vim Li Cas Qhov Tseem Ceeb |
|---|---|---|---|
| Titanium (Ti) | Tshuav | Tshuav | Base hlau rau ob qho tib si. |
| Palladium (zeeg) | Tsis muaj | 0.12 - 0.25 | Qhov tseem ceeb sib txawv. Muab cov kua qaub tiv thaiv. |
| Oxygen (O), max | 0.25 | 0.25 | Cov pa oxygen tib yam li Qib 2. |
| Hlau (Fe), max | 0.30 | 0.30 | Ib yam li Qib 2. |
| Carbon (C), max | 0.08 | 0.08 | Ib yam li Qib 2. |
| Nitrogen (N), max | 0.03 | 0.03 | Ib yam li Qib 2. |
| Hydrogen (H), max | 0.015 | 0.015 | Ib yam li Qib 2. |
Qib 7 thiab Qib 2 sib koom tib lub hauv paus chemistry thiab mechanical zog. Qhov txawv tsuas yog qhov sib ntxiv ntawm palladium. Qhov no txhais tau tias koj tau txaistib lub zog thiab weldability zoo li Qib 2, tab sis nrog zoo dua corrosion kuj nyob rau hauv tej yam tshuaj ib puag ncig.
Tau txais Cov Lus Qhia Tshwj Xeeb
Qib 2 thiab Qib 7 Puas muaj zog sib npaug?
Yog lawm. Qib 7 muaj cov khoom siv tib yam li Qib 2. Cov palladium ntxiv tsis cuam tshuam rau lub zog, ductility, lossis hardness. Yog tias koj tsim rau Qib 2, koj tuaj yeem hloov Qib 7 yam tsis tau hloov cov phab ntsa tuab, kev ntsuas siab, lossis cov ntawv raj tsim.
Qhov no yog ib qho tseem ceeb rau cov engineers. Vim Qib 7 sib koom tib yam ASTM B338 txhua yam yuav tsum tau ua raws li Qib 2, koj tsis tas yuav rov tsim kho koj lub tshav kub hloov pauv yog tias koj txiav txim siab hloov kho.
| Khoom | Qib 2 | Qib 7 | Engineering Impact |
|---|---|---|---|
| Tensile zog (min) | 345 MPa rau | 345 MPa rau | Ib yam. Tib lub peev xwm. |
| Yield zog (min) | 275 MPa rau | 275 MPa rau | Zoo ib yam. Tib phab ntsa thickness yuav tsum. |
| Elongation (min) | 20% | 20% | Ib yam. Tib formability rau U- khoov. |
| Hardness (HV) | ~160-200 | ~160-200 | Ib yam. Tib hnav tsis kam. |
| Qhov ceev (g / cm³) | 4.51 | 4.51 | Zoo ib yam. Tsis hnyav qhov sib txawv. |
| Elastic Modulus (GPa) | ~105 | ~105 | Ib yam. Tib yam thermal expansion cwj pwm. |
Qib 7 ua tau zoo dua qib 2 qhov twg?
Qib 7 ua tau zoo tshaj qib 2 hauv kev txo cov kua qaub ib puag ncig-tshwj xeeb yog hydrochloric acid (HCl), sulfuric acid (H₂SO₄), thiab cov roj chlorine ntub dej. Hauv dej hiav txwv, dej brackish, thiab kev pabcuam oxidizing acid, ob qib ua tau zoo sib npaug.
| Ib puag ncig | Qib 2 | Qib 7 | Qhov twg xaiv |
|---|---|---|---|
| Dej hiav txwv / dej hiav txwv | Zoo heev | Zoo heev | Qeb 2. Qib 7 yog overkill. |
| Chlorides (tsis muaj pH) | Zoo heev | Zoo heev | Qib 2. |
| Nitric acid (oxidizing) | Zoo heev | Zoo heev | Qib 2. |
| Hydrochloric acid (dilute) | pluag | Zoo | Qib 7 yuav tsum muaj. |
| Sulfuric acid (dilute) | pluag | Zoo | Qib 7 yuav tsum muaj. |
| Cov roj chlorine ntub dej | Txais tau | Zoo heev | Qib 7 nyiam qhov ntev - kev cia siab rau lub sijhawm. |
| Flue gas desulfurization | Marginal | Zoo heev | Qib 7 yog tus qauv kev lag luam. |
| Kev tsim cov tshuaj chlorate | pluag | Zoo heev | Qib 7 yuav tsum muaj. |
| Kub siab (> 75 degree) nrog chlorides | Txais tau | Zoo heev | Qib 7 muab crevice corrosion kuj. |
Yog tias koj qhov chaw ib puag ncig muaj qee qhov kev txo qis acids, Qib 7 tsuas yog qhov kev xaiv ua tau zoo xwb. Qib 2 yuav corrode, thiab hloov cov raj hauv cov khoom siv hluav taws xob sib txawv yog qhov kim dua li kev yuav cov khoom siv ua ntej.
Qib 7 Tus nqi ntau npaum li cas tshaj qib 2?
Qib 7 feem ntau raug nqi 80-120% ntau dua li Qib 2-feem ntau kwv yees li ob npaug ntawm tus nqi ib kilogram. Tus nqi yog los ntawm cov ntsiab lus palladium, uas yog cov hlau muaj txiaj ntsig nrog tus nqi tsis hloov pauv.
| Nqi Factor | Qib 2 | Qib 7 |
|---|---|---|
| Base khoom nqi | Lub hauv paus | ~ 2 x Qib 2 |
| Palladium cov ntsiab lus | Tsis muaj | 0.12-0.25% (muaj nuj nqis hlau) |
| Nqe volatility | Tsawg (stable) | Nruab nrab-High (txuas mus rau Pd lag luam) |
| Tshuag muaj | Muaj dav | Txwv tsis pub, feem ntau ua rau kev txiav txim |
| Lub Sijhawm Lead (standard) | 2-4 lub lis piam | 4-8 lub lis piam |
Koj puas tuaj yeem Weld Qib 7 tib yam li Qib 2?
Yog lawm. Qib 7 welds tib yam li Qib 2 siv GTAW (TIG) nrog argon shielding. Qhov sib ntxiv palladium tsis cuam tshuam rau weldability. Siv cov khoom siv hlau sib txuam (ERTi-7) lossis, qee zaum, ERTi-2 tuaj yeem siv tau rau cov vuam tsis tseem ceeb.
Vim Qib 7 muaj tib lub hauv paus chemistry li Qib 2, tag nrho cov txheej txheem titanium vuam siv tau:
100% argon shielding (pem hauv ntej thiab nram qab)
Khaws qhov kub ntawm qhov sib txawv hauv qab 200 degree
Tsis muaj kev tshaj tawm -weld kev kho cua sov yuav tsum tau
Ntxuav tag nrho cov cuab yeej thiab cov chaw ua hauj lwm kom tsis txhob muaj hlau paug
Thaum twg Yuav Tsum Xaiv Qib 7 Tshaj Qib 2?
Xaiv Qib 7 thaum koj cov kwj deg muaj cov kua qaub (HCl, H₂SO₄), cov tshuaj chlorine ntub dej, lossis cov tshuaj chloride kub tshaj 75 degree. Xaiv Qib 2 rau dej hiav txwv, oxidizing acids, thiab nruab nrab chloride kev pab cuam qhov twg corrosion yog tsawg.
| Qhov xwm txheej | Kev pom zoo |
|---|---|
| Seawater txias (txhua qhov kub) | Qib 2 |
| Dej nyab / dej hiav txwv | Qib 2 |
| Dilute HCl, txhua qhov kub | Qib 7 |
| Dilute H₂SO₄, txhua qhov kub | Qib 7 |
| Cov roj chlorine ntub dej | Qib 7(Qib 2 yog marginal) |
| Flue gas desulfurization scrubbers | Qib 7(Industry standard) |
| Chlorate / chlorine dioxide ntau lawm | Qib 7 |
| Cov dej hiav txwv kub> 75℃(crevice corrosion risk) | Qib 7 |
| Oxidizing acids (nitric, chromic) | Qib 2 |
| Organic acids (acetic, formic) nrog chlorides | Qib 7yog tias txo cov kev mob tshwm sim |
Peb cov txheej txheem tshuaj xyuas thiab kuaj
Peb ua100% kev soj ntsuamntawm txhua lub raj ua ntej xa khoom. Kev ntsuam xyuas yog ua raws liASTM B 338 CovthiabASME SB 338kev xav tau.
| Kuaj / Tshuaj xyuas | Txoj kev | Dab tsi peb kuaj |
|---|---|---|
| Tshuaj muaj pes tsawg leeg | Spectrographic / PMI | Txheeb xyuas UNS R50400 lossis R52400 ua raws. Palladium cov ntsiab lus txheeb xyuas. |
| Kev Ntsuas Tensile | Kev kuaj puas tsuaj | Yield, tensile, thiab elongation ua tau raws li qib kawm. |
| Eddy Current Testing (ECT) | 100% NDT | Nto thiab nyob ze -sov flaws. |
| Kev kuaj ultrasonic (UT) | NDT (optional) | Internal defects nyob rau hauv seamless raj. |
| Kev Ntsuas Hydrostatic | Dej siab | Leak{0}}tightness thiab tawg zog. |
| Flattening Test | Neeg kho tshuab | Ductility thiab weld zoo. |
| Flaring Test | Neeg kho tshuab | Muaj peev xwm nthuav dav rau hauv cov ntawv raj. |
| Dimensional soj ntsuam | Micrometer, ntsuas | OD, WT, ntev, ovality, ncaj. |
| Kev tshuaj xyuas qhov muag | 100% | Kos, pits, thiab qhov chaw paug. |
Peb Muaj peev xwm tsim tau rau Qib 2 thiab Qib 7 Titanium Tubes
Peb tsim ob qho tib siASTM B338 Qib 2thiabQib 7 titanium rajhauv -tsev. Peb qhov chaw tsim khoom yog nruab los tswj tag nrho cov khoom lag luam ntshiab thiab qis - alloy titanium tubing.
| Khoom siv | Muaj nuj nqi | Kev cuam tshuam zoo |
|---|---|---|
| Nqus Arc Remelting (VAR) Rauv | Ua kom siab -purity titanium ingots | Ua kom muaj chemistry zoo ib yam rau ob qib. |
| Kub Extrusion Xovxwm | Ua billets rau hauv lub raj hollows | Muab cov qauv nplej zoo ib yam. |
| Txias Rolling Mill | Txo phab ntsa thickness nrog precision | Achieves nruj dimensional tolerances. |
| Txias Drawing Bench | Ua tiav OD thiab nto zoo | Ua kom du, tsis xws luag -dawb nto. |
| Bright Annealing Rauv | Tswj -kev kho cua sov | Muab tag nrho annealed, ntxhov siab- cov hlab dawb. |
| Straightening tshuab | Kho lub raj hneev nti thiab twist | Raws li kev ncaj ncees Tsawg dua lossis sib npaug li 1.5 mm / m. |
| CNC txiav tshuab | Qhov tseeb ntev txiav | Txhawb kev cai thiab ntev ntev. |
| U-Bend Bending Tshuab | Precision txias dabtsi yog khoov | Ib puag ncig ib puag ncig cov neeg siv khoom kos duab. |
Peb Ntim thiab Shipping Standards
| Ntim Kauj Ruam | Txoj kev | Lub hom phiaj tiv thaiv |
|---|---|---|
| End Caps | Cov kaus mom yas ntawm ob qhov kawg | Tiv thaiv cov khib nyiab ingress thiab ntug kev puas tsuaj. |
| Waterproof qhwv | PE zaj duab xis wrapping rau ib pob | Tiv thaiv cov dej noo thiab ntsev tsuag. |
| Bundle Strapping | Hlau hlua nrog ntug tiv thaiv | Ruaj ntseg cov raj tiv thaiv kev txav thiab khoov. |
| Crating | Export -qib plywood case | Cov qauv kev tiv thaiv rau kev xa khoom ntev. |
| Sab hauv Padding | Ua npuas ncauj sab hauv | Tiv thaiv nto khawb los ntawm kev co. |
| Kev sau npe | Thaum tshav kub kub naj npawb, qib, loj, nras ID | Xyuas kom tag nrho traceability. |
Lub sij hawm ua cov txheej txheem:
Qib 2 cov khoom loj:3-7 hnub
Qib 2 ntau lawm:2-4 lub lis piam
Qib 7 ntau lawm:4-8 lub lis piam(vim muaj alloy)
FAQ
1. Dab tsi yog qhov txawv ntawm Qib 2 thiab Qib 7 titanium?
Qib 7 muaj 0.12-0.25% palladium (Pd); Qib 2 tsis yog.Qhov sib ntxiv palladium no muab Qib 7 superior corrosion kuj hauv kev txo cov kua qaub xws li hydrochloric thiab sulfuric acid.
2. Puas yog Qib 7 raug nqi ntau dua Qib 2?
Yog, tseem ceeb tshaj.Qib 7 feem ntau raug nqi kwv yees li ob npaug ntawm tus nqi ntawm Qib 2 vim yog cov ntsiab lus palladium.
3. Cov khoom siv tshuab ntawm Qib 2 thiab Qib 7 puas zoo ib yam?
Yog lawm, lawv zoo ib yam.Ob qib muaj tib lub zog tensile (345 MPa), yield zog (275 MPa), thiab elongation (20%).
4. Kuv puas tuaj yeem vuam Qib 7 zoo ib yam li Qib 2?
Yog lawm.Ob leeg siv GTAW nrog argon shielding. SivERTi-7Filler hlau rau Qib 7 welds.
5. Thaum twg kuv yuav tsum xaiv Qib 7 es tsis yog Qib 2?
Xaiv Qib 7rau daim ntawv thov uas muaj hydrochloric acid, sulfuric acid, ntub chlorine gas, flue gas desulfurization, los yog kub chloride ib puag ncig saum 75 degree.
6. Qib 7 puas tsim nyog rau kev siv dej hiav txwv?
Tsis muaj.Qib 2 ua tau zoo hauv cov dej hiav txwv thiab yog cov qauv kev lag luam. Qib 7 yog overkill.
7. Puas yog Qib 7 muab kev tiv thaiv corrosion zoo dua li Qib 2?
Yog lawm.Qib 7 muab kev tiv thaiv corrosion zoo tshaj plaws ntawm qhov kub siab, tshwj xeeb tshaj yog siab dua 75℃hauv chloride- muaj ib puag ncig.
8. Tus lej UNS rau Qib 7 titanium yog dab tsi?
UNS R52400.Qib 2 yog UNS R50400.
9. Qib 7 puas tuaj yeem siv los hloov Qib 2 hauv cov khoom siv hluav taws xob uas twb muaj lawm?
Yog lawm.Vim tias lawv muaj cov khoom siv kho tshuab zoo ib yam thiab qhov ntev, Qib 7 tuaj yeem hloov kho Qib 2 ncaj qha yam tsis muaj kev kho dua tshiab.
10. Puas yog palladium hauv Qib 7 muaj feem cuam tshuam rau weldability?
Tsis muaj.Palladium tsis cuam tshuam rau weldability. Qib 7 welds tau yooj yim raws li Qib 2 nrog argon shielding kom raug.
11. Dab tsi kev lag luam feem ntau siv Qib 7 titanium raj?
Kev ua tshuaj lom neeg, flue gas desulfurization, chlorate ntau lawm, thiab txhua daim ntawv thov tuav txo cov kua qaub.
12. Dab tsi yog cov khoom siv hlau uas kuv yuav tsum siv rau vuam Qib 7?
ERTi-7yog qhov pom zoo muab tub lim hlau. ERTi-2 tej zaum yuav siv tau rau cov ntawv thov tsis tseem ceeb tab sis nrog koj tus engineer.
13. Qib 7 puas muaj los ntawm Tshuag?
Feem ntau tsis muaj.Qib 7 feem ntau yog ua los txiav txim vim qhov xav tau qis dua thiab muaj palladium. Lub sij hawm xa tuaj yog 4-8 lub lis piam.
14. Puas yog Qib 7 muaj qhov thermal expansion zoo li Qib 2?
Yog lawm.Ob qib muaj tib coefficient ntawm thermal expansion, yog li lawv coj zoo ib yam nyob rau hauv thermal cycling.
15. Kuv yuav ua li cas thiaj paub tias kuv xav tau Qib 7?
Ua ib qho kev kuaj corrosionnrog daim coupon hauv koj cov txheej txheem tiag tiag. Yog Qib 2 qhia tias poob phaus lossis pitting, xav txog Qib 7.
