Kev siv ntawm Gr5 Titanium Standard Fittings thoob plaws Kev Lag Luam
Mar 28, 2024
Titanium yog siv los ua corrosion-cov khoom siv tiv thaiv vim tias nws cov oxide zaj duab xis hloov kho sai sai hauv huab cua lossis dej, thiab Gr5, Ti-6Al- 4V alloy, ntxiv rau qib siab uas cov qib ntshiab hauv kev lag luam tsis tuaj yeem ncav cuag. Gr5 tus qauv fittings xws li flanges, luj tshib, tees, reducers, couplings thiab fasteners yog li ua ke siab zog nrog rau cov tshuaj chlorides thiab oxidising tshuaj. Hauv kev tsim tshuaj lom neeg, titanium tau hloov cov hlau tsis muaj steel, tooj liab{10}}nickel thiab npib tsib xee-raws li alloys hauv ntau cov kev pabcuam, nce cov khoom tsim tawm, txhim kho cov khoom zoo, txuas ntxiv cov cuab yeej siv lub neej, txiav tu, txo kev siv zog thiab txhim kho kev ua haujlwm. Cov nroj tsuag tshuaj suav txuas ntxiv nthuav dav lawv cov kev siv titanium, thiab cov khoom siv hlau alloy tau dhau los ua ib qho ntawm cov kev xaiv tseem ceeb los tiv thaiv corrosion rau cov engineers.
Chlor-Alkali Production
Kev lag luam chlor-alkali yog cov khoom siv raw cov ntaub ntawv uas nws cov khoom tso tawm pub rau ntau yam ntawm cov khoom lag luam hauv qab. Titanium fittings tiv thaiv chloride ion tawm tsam zoo dua li cov hlau tsis muaj steel thiab feem ntau cov hlau tsis yog -ferrous hlau, uas ua rau lawv xaiv tus qauv rau cov hlau anode electrolysers, ion- pauv membrane electrolysers, ntub chlorine coolers, refined brine preheaters, dechlorination yees thiab chlorine txias scrubbers.
Yav dhau los ntawm cov chav tsev no tau siv cov khoom siv tsis yog- cov khoom siv hlau thiab cov khoom siv nrog cov khoom siv tsis zoo, thermal stability thiab kev ua tau zoo, uas ua rau cov khoom siv hnyav, kev siv hluav taws xob ntau, lub neej ua haujlwm luv luv, cov khoom tsis sib xws thiab ib puag ncig muaj kuab lom.
Gr5 fittings muab lub zog txhua yam xav tau rau headers, ceg kev sib txuas thiab kev txhawb nqa cov qauv thaum khaws cov corrosion kuj ntawm titanium hauv cov chlorine ntub dej thiab cov kev pabcuam hypochlorite.
Vim tias titanium xav tau cov dej noo kom tswj tau nws cov zaj duab xis passive, qhov kev pabcuam roj chlorine qhuav xav tau kev ntsuas tshwj xeeb; oxidising, moist chlorine tej yam kev mob ntawm ib tug electrolyser Circuit Court yog ib puag ncig titanium yog tsim los rau.
Soda Ash thiab Inorganic Chemical Cog
Soda tshauv yog ib qho ntawm cov khoom siv tseem ceeb tshaj plaws, thiab nws cov khoom siv hluav taws xob tswj cov ammonia, carbon dioxide thiab cov txheej txheem kev daws teeb meem. Carbonation ntauwd tube bundles, kub niam cawv txias, crystallisation sab nraud txias thiab cov khoom zoo sib xws ua los ntawm cov hlau los yog cam khwb cia hlau corrode thiab xau, thiab qhia lub neej kev pab cuam rau cov khoom no feem ntau nyob rau hauv peb lub xyoos, nrog sib raug poob ntawm ntau lawm thaum lub sij hawm txhua kaw.
Gr5 thiab kev lag luam ntshiab titanium fittings yog siv rau cov circulating solution circuits, cooler connections and gas handlelines where condensate and chloride carry-over the localized attack.
Lub teeb yuag, siab zog, kub tsis kam thiab corrosion kuj ua alloy fittings ib tug tswv yim hloov rau hnyav lined Cheebtsam ntawm tib lub luag hauj lwm.
Kev xaiv haum raws li tib lub laj thawj raws li kev xaiv cov yeeb nkab: qhov haum yuav tsum yog yam tsawg kawg li corrosion resistant raws li cov yeeb nkab uas nws koom nrog, thiab cov kev ntsuas siab yuav tsum tau ua raws li tus qauv flange siv ntawm kab.
Aerospace, Marine thiab Medical Applications
Aerospace:Gr5 fittings, bushings thiab fasteners yog siv nyob rau hauv airframe thiab engine hardware vim yog lub zog - rau - luj piv, feem ntau yog li 40 % sib dua li hlau rau sib npaug load peev xwm.
Marine engineering:titanium fittings pab subsea hydraulic kab, seawater systems, offshore firewater circuits thiab instrument tubing raug chloride nres.
Kev kho mob:qhov ntxiv -qis-interstitial variant ntawm Gr5 yog siv rau cov khoom cog uas muaj zog lub neej thiab biocompatibility tseem ceeb heev.
Lub zog tsim thiab desalination:titanium fittings thiab fasteners tau teev tseg rau cov thawv dej condenser, brine circuits thiab cov kab hluav taws xob rov qab.
Kev Ua Si thiab General Engineering:Cov qauv teeb, tsheb kauj vab thav duab, fasteners thiab siab -qib cov cuab yeej tau txais txiaj ntsig los ntawm kev sib xyaw ua ke ntawm lub zog thiab kev tiv thaiv corrosion.
Specification Options rau Gr5 Standard Fittings
| Yam khoom | Kev tswj hwm tus qauv | Hom hom phiaj |
|---|---|---|
| Wrought fittings (lub luj tshib, tees, reducers, stub kawg) | ASTM B363 / ASME SB-363 Cov Lus Qhia | Siab piping thiab txheej txheem kab hauv kev pabcuam corrosion |
| Forged fittings thiab flanges | ASTM B 381 Cov Lus Qhia Tshwj Xeeb | High-siab thiab siab- kev sib txuas ncaj ncees, lub cev valve |
| Bar thiab billet khoom | ASTM B 348 Cov Lus Qhia Tshwj Xeeb | Machined fittings, fasteners thiab kev cai Cheebtsam |
| Bolts, ceev thiab studs | ASTM F468 / ASTM F467 Cov Lus Qhia | Flanged pob qij txha, structural thiab marine fastening |
| Phaj thiab daim ntawv | ASTM B265 | Fabricated fittings, liners thiab gaskets |
| Welded thiab seamless raj | ASTM B338 / ASME SB-338 Cov Lus Qhia | Thaum tshav kub kub exchanger thiab condenser circuits koom nrog fittings |
Gr5 fittings yog muab nyob rau hauv lub annealed mob raws li tus qauv, nrog tensile lub zog ntawm yam tsawg kawg nkaus 895 MPa thiab yield zog tsawg kawg yog 828 MPa. Cov cuab yeej siv tshuab, ntsuas zaus thiab cov cim yuav tsum tau los ntawm cov khoom siv thiab yuav tsum tau teev nyob rau hauv kev yuav khoom nrog rau cov txheej txheem flange drilling thiab qhov kev lees paub tsis zoo.
Cov lus nug nquag
Q: Vim li cas Gr5 fittings raug xaiv los ntawm Qib 2 hauv cov nroj tsuag tshuaj?
Qib 2 muaj qhov zoo dua ductility thiab yooj yim rau kev tsim, tab sis Gr5 muab kwv yees li peb zaug nws lub zog tawm los. Gr5 yog xaiv qhov twg qhov haum nqa cov khoom siv thauj khoom siab, qhov kev ntsuas siab siab, lossis qhov twg qhov kev sib txuas yuav tsum yog compact thiab lub teeb.
Q: Puas yog titanium fittings haum rau cov roj chlorine qhuav?
Titanium nyob ntawm qhov chaw ntub dej, oxidising ib puag ncig kom nws cov yeeb yaj kiab tsis zoo, yog li kev pabcuam roj chlorine qhuav yuav tsum tau ntsuas tshwj xeeb thiab ib txwm zam. Cov chlorine ntub dej thiab hypochlorite circuits, uas yog ib puag ncig hauv chlor-alkali electrolyser, yog tsim nyog.
Q: Yuav ua li cas lub zog yuav tsum tau los ntawm Gr5 tus qauv fittings?
Annealed Gr5 muaj qhov tsawg kawg nkaus tensile lub zog ntawm 895 MPa, qhov tsawg kawg nkaus 0.2% offset yield zog ntawm 828 MPa thiab qhov tsawg kawg nkaus elongation ntawm 10%, nrog ib tug ceev ntawm txog 4.43 g / cm3.
Q: Puas yog titanium fittings xav tau tshwj xeeb installation xyaum?
Yog lawm. Titanium galls yooj yim, yog li threads thiab sealing lub ntsej muag yuav tsum tau lubricant los yog ib tug haum inserts, thiab bolted pob qij txha yuav tsum tau nruj me ntsis nyob rau hauv ib tug tswj, ntoo khaub lig- qauv ib theem zuj zus. Field welding ntawm fittings rau cov yeeb nkab yuav tsum muaj cov roj inert tag nrho ntawm ob lub ntsej muag.
Q: Qib 2 puas tuaj yeem txuas nrog Gr5 haum?
Ob qib tuaj yeem welded ua ke nrog cov txheej txheem tsim nyog thiab kev sib xyaw ua ke hlau, thiab kev sib koom ua ke yog ib qho uas muaj kev sib haum xeeb ua ke nrog cov yeeb nkab khiav. Kev sib koom ua ke yuav tsum tsim nyog nyias vim tias lub pas dej sib txuas sib txawv ntawm ob qho tib si niam txiv hlau.
Q: Tus qauv twg npog wrought titanium fittings?
ASTM B363, luam tawm raws li ASME SB-363 rau cov cuab yeej siv siab, npog wrought titanium thiab titanium alloy fittings rau kev pabcuam dav dav. Forged fittings thiab flanges yog them los ntawm ASTM B381, thiab bar Tshuag los ntawm ASTM B348.
