Rau kev kho cov khw muag khoom ua haujlwm rau cov mining, quarrying, thiab heavy machinery sectors, ib qho kev sib tw rov tshwm sim: cov khoom puas tuaj txog rau kev kho yam tsis muaj daim phiaj xwm lossis cov ntaub ntawv pov thawj, thiab tsis muaj ib txoj hauv kev los txheeb xyuas qhov muaj pes tsawg leeg ntawm lub hauv paus hlau. Qee cov khoom siv vuam electrode nyob rau hauv kev ua lag luam tout ib qib AWS, uas yog AWS A5.4 E312-16 (a 29Cr-9Ni ferritic-austenitic duplex steel vuam electrode), raws li "universal" tov. Txawm li cas los xij, E312-16 puas tuaj yeem txuas cov hlau "tsis paub"? Los yog qhov kev lag luam hype npog nws cov kev txwv nruj hauv daim ntawv thov?
Vim li cas E312-16 ua lag luam raws li kev lag luam tsis paub tsis meej-hlau pas nrig?
Rau ntau tshaj li tsib caug xyoo, E312-16 tau tuav lub lag luam tshwj xeeb: nws tsim cov khoom siv vuam nrog cov duplex microstructure thiab Ferrite Number (FN) ntawm kwv yees li 40. Qhov siab no -chromium formulation khi sulfur, cuam tshuam tsis tu ncua martensitic bands, thiab thaiv cov gen propagation ntawm hydrogen{5} hauv paus. unpredictable metallurgical yam ntxwv. Lincoln Electric piav qhia txog nws cov Excalibur thiab Tech-Rod 312-16 cov khoom uas yog "tsim los rau vuam cov ntaub ntawv nyuaj-rau-weld thiab cov hlau sib txawv." SÜA, tus kws tshaj lij distributor, muab cov lus piav qhia yooj yim dua hauv nws phau ntawv qhia kev xaiv stainless hlau: "Tsis paub meej ntawm cov khoom siv hauv paus? Xaiv qhov no → Rau kev nyab xeeb, siv E312-16. Alloy nquag tawg lossis tsis paub muaj pes tsawg leeg? Siv E312-16, nrog nws cov ntsiab lus ferrite siab, zoo tagnrho rau cov ntaub ntawv nrog cov khoom siv hlau tsis tuaj yeem."
Qhov twg E312-16 tau txais nws lub koob npe nrov?
| Base hlau | Ib txwm muaj kev pheej hmoo | Vim li cas E312-16 ua haujlwm |
|---|---|---|
| D2 / H13 cuab yeej & pwm steels | HAZ hydrogen cracking | Duplex deposit absorbs dilution yam xyuam xim |
| Hadfield manganese hnav qhov chaw | Weld{0}} hlau kub tawg | 40% ferrite blocks txoj kev tawg |
| AR500 armor phaj | HAZ hardening | Siab -Cr muab tub lim khaws cia ductility |
| Unknown seem / legacy castings | Metallurgical tsis paub tseeb | Ferrite tolerates variable chemistry |
Muag ntawm Lowe's, Forney-brand 1-pound pob ntawm E312-16 vuam electrodes boasts lub nominal tensile lub zog ntawm 128,000 psi (kwv yees li 880 MPa) thiab yog marketed li "qhov kawg electrode rau feem ntau ntawm cov hlau nyob rau hauv tributes"-a Cov khw kho mob Asmeskas tau ntau xyoo lawm.
Dab tsi txwv qhov kev lag luam ntsiag to omit?
Txhua lub khw kho yuav tsum paub meej txog ob qhov kev txwv nruj. Ua ntej, cov ntsiab lus siab ferrite uas ua rau tawg tsis kam rau E312-16 kuj ua rau nws raug rau embrittlement nyob rau hauv 300℃mus rau 850℃kub ntau yam (tshwj xeeb yog "475℃embrittlement" lossis kev pheej hmoo ntawm sigma-theem embrittlement); yog li ntawd, E312-16 welds yuav tsum tsis txhob siv nyob rau hauv siab -kub qhov kev pab cuam ib puag ncig. Thib ob, thaum siv cov cam khwb cia hlau, cov khoom muab tub lim no tsuas yog siv los ua ib qho kev hloov pauv (lossis tsis muaj) txheej; los xyuas kom meej cov xim txuam nrog lub hauv paus hlau thiab zoo machinability, qhov kawg nto overlay yuav tsum tau siv siv tau tshaj ENiFe{11}}CI los yog ENi-CI npib tsib xee-hlau electrodes.
FAQ
Q: E312-16 vuam electrode siv rau dab tsi?
A: Cov cuab yeej thiab pwm kho steel, Hadfield manganese steel, armor phaj, siab -carbon steels, sib sib zog nqus pob qij txha nyob rau hauv siab ceev, thiab tsis paub- kho hlau.
Q: Puas tuaj yeem E312-16 vuam cov hlau zoo li D2 lossis H13?
A: Yog. Preheat rau 200-250 degree, siv luv luv -arc stringer hlaws, peen ntawm hla, ces qeeb - txias hauv vermiculite.
Q: Puas yog E312-16 zoo rau cov hlau tsis paub?
A: Yog - qhov no yog nws txoj kev lag luam- lees paub siv siv. 40% ferrite cov ntsiab lus tolerates unpredictable dilution yam tsis embrittling.
Q: E312-16 puas tuaj yeem vuam manganese (Hadfield) hlau?
A: Yog; nws yog tsis tu ncua teev rau crusher puab tsaig, excavator hniav thiab zeb liners ntawm Hadfield hnav qhov chaw.
Q: E312-16 puas tuaj yeem vuam cam khwb cia hlau?
A: Raws li ib txheej tsis / buttering nkaus xwb, ua ntej zaum kawg overlay nrog ib tug sib xws cam khwb cia- hlau electrode.
Q: Vim li cas ho tsis tsuas yog siv E309-16 rau txhua qhov haujlwm sib txawv?
A: E309-16 (FN ≈ 8) yuav kub- tawg ntawm siab- carbon lossis siab - cov pob qij txha txwv qhov twg E312-16 (FN ≈ 40) nyob tsis muaj tawg.
Hais txog Ocean Vuam
Dej Hiav Txwv Vuam yog cov khoom lag luam xa tawm thoob ntiaj teb ntawm Hangzhou Linan Dayang Vuam Khoom Co., Ltd., Suav Vuam- cov khoom tsim khoom tsim tau tsim nyob rau xyoo 1995. Lub tuam txhab muab AWS- cais E312-16 hauv 2.5-5.0 hli diameters nrog zeb xeem ntawv pov thawj suav nrog cov nyiaj them yug tus lej thiab cov khoom siv, hnyav- cog MRO channel hauv Africa, Latin America thiab South-East Asia.
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