Nqe lus piav qhia:
Co 21, cobalt raws li liab qab pas nrig uas tsim cov pa roj carbon tsawg, austenitic alloy, nrog zoo heev ua hauj lwm hardening zog, kub siab zog thiab tej yam resistant.Co 21 deposits ruaj khov thaum caij tsheb kauj vab, ua rau lawv xaiv zoo rau cov khoom kub kub.nws yog siv rau ntawm chav thiab kua tswj valve lub cev thiab cov rooj zaum.Nws tuaj yeem siv rau txhua qhov kev sib txuas ntawm cov hlau, nrog rau cov hlau tsis muaj steel.Nws sib npaug rau: Stellite 21, Polystel 21.
APPLICATIONS:
Chav Valves.Kub Shears.Forging Tuag.Piercing Plugs.Chemical thiab Petrochemical li qub.
KHOOM PLIG:
Tshuaj muaj pes tsawg leeg
| Qib | Tshuaj muaj pes tsawg leeg (%) | ||||||||
| Co | Cr | W | Ni | C | Mn | Si | Mo | Fe | |
| Koj 21 | Bal | 27.3 ib | ≤0.5 | 2 | 0.25 | ≤0.5 | 1.5 | 5.5 | 1.5 |
PHYSICAL PROPERTIES:
| Qib | Qhov ntom | Melting Point |
| Koj 21 | 8.33g 3 | 1295-1435 ° C |
TSEEM CEEB:
| Hardness | Abrasion Resistance | Deposit Layers | Corrosion Resistance | Machilityineab |
| HRC 27-40 | Zoo | Ntau | Zoo | Cov cuab yeej Carbide |
STANDARD SIZES:
| Txoj kab uas hla | Txoj kab uas hla | Txoj kab uas hla |
| 1/8 "(3.2mm) | 5/32 "(4.0mm) | 3/16 "(4.8mm) |
Nco ntsoov tias qhov loj me tshwj xeeb, lossis cov kev xav tau ntim muaj nyob rau ntawm txhua qhov kev thov.
SPECIFICATIONS:
AWS A5.21 / ASME BPVC IIC SFA 5.21 ERCoCr-E
AWS A5.13 ECOCR-A:
Cobalt 6
ECoCr-A electrodes yog tus yam ntxwv los ntawm ib tug hypoeutectic qauv, muaj xws li ib tug network ntawm txog 13% eutectic chromium carbides faib nyob rau hauv ib tug cobalt-chromium-tungsten solid tov matrix.Qhov tshwm sim yog cov khoom siv nrog kev sib xyaw ua ke ntawm tag nrho cov kev tiv thaiv tsis tshua muaj kev ntxhov siab abrasive hnav, nrog rau qhov tsim nyog toughness los tiv thaiv qee qhov kev cuam tshuam.Cobalt alloys kuj tseem muaj txiaj ntsig zoo rau kev tiv thaiv hlau-rau-hlau hnav, tshwj xeeb tshaj yog nyob rau hauv cov xwm txheej siab uas ua rau khaus.Cov ntsiab lus siab-alloy ntawm matrix kuj muaj peev xwm ua tau zoo heev rau corrosion, oxidation, thiab siab kub tuav ntawm kub hardness mus txog qhov siab tshaj plaws ntawm 1200 ° F (650 ° C).Cov alloys no tsis raug rau allotropic transformation thiab yog li ntawd tsis poob lawv cov khoom yog tias lub hauv paus hlau yog tom qab kub kho.
Colbalt #6 tau pom zoo rau cov xwm txheej uas hnav nrog rau qhov kub thiab txias thiab qhov chaw muaj kev cuam tshuam, lossis ob qho tib si.Qee cov ntawv thov raug siv yog lub tsheb thiab cov kua dej ntws tawm, cov ntawv qhia saw saw, kub punches, shear blades, thiab extruder screws.
AWS A5.13 ECOCR-B:
Cobalt 12
ECoCr-B electrodes thiab rods yog zoo ib yam nyob rau hauv muaj pes tsawg leeg rau deposits siv ECoCr-A (Cobalt 6) electrodes thiab rods, tshwj tsis yog rau ib tug me ntsis ntau dua feem pua (kwv yees li 16%) ntawm carbides.Lub alloy kuj muaj ib tug me ntsis hardness thiab zoo abrasive thiab hlau-rau-hlau hnav tsis kam.Kev cuam tshuam thiab corrosion kuj yog qis me ntsis.Kev tso nyiaj tuaj yeem ua tiav nrog cov cuab yeej carbide.
ECoCr-B (Cobalt 12) electrodes yog siv interchangeably nrog ECoCr-A (Cobalt 6) electrodes.Kev xaiv yuav nyob ntawm qhov kev thov tshwj xeeb.
AWS A5.13 ECOCR-C:
Cobalt 1
ECoCr-C muaj qhov feem pua siab dua (kwv yees li 19%) ntawm cov carbide ntau dua li cov nyiaj tso cia siv ECoCr-A (Cobalt 6) lossis ECoCr-B (Cobalt 12).Qhov tseeb, muaj pes tsawg leeg, yog xws li cov thawj hypereutectic carbides muaj nyob rau hauv microstructure.Cov yam ntxwv no muab cov alloy siab dua hnav tsis kam nrog kev txo qis hauv kev cuam tshuam thiab corrosion kuj.Lub hardness siab dua kuj txhais tau hais tias muaj kev nyiam ntau dua tuaj yeem txo qis los ntawm kev saib xyuas preheating, interpass kub, thiab cov txheej txheem postheating.
Thaum cov cobalt-chromium deposits soften me ntsis ntawm qhov kub siab, lawv ib txwm raug suav hais tias tiv thaiv kom tsis txhob kub.ECoCr-C electrodes yog siv los tsim cov khoom xws li cov khoom sib tov, rotors lossis qhov twg muaj kev puas tsuaj hnyav thiab cuam tshuam tsawg.
AWS A5.13 ECOCR-E:
Cobalt 21
ECoCr-E electrodes muaj lub zog zoo heev thiab ductility nyob rau hauv qhov kub txog li 1600 ° F (871 ° C).Cov deposits yog resistant rau thermal shock, oxidizing, thiab txo cov cua.Thaum ntxov daim ntawv thov ntawm cov hom alloys tau pom nyob rau hauv dav hlau cav Cheebtsam xws li turbine hniav thiab vanes.
Cov nyiaj tso nyiaj yog ib qho kev daws teeb meem ncaj qha alloy nrog qhov hnyav qis-feem pua carbide theem hauv microstructure.Yog li ntawd, lub alloy yog tawv heev thiab yuav ua hauj lwm harden.Cov deposits muaj zoo heev tus kheej-mated galling kuj thiab kuj yog heev resistant rau cavitation yaig.
ECoCr-E electrodes yog siv nyob rau hauv qhov chaw tiv thaiv thermal shock yog ib qho tseem ceeb.Tej kev siv;zoo ib yam li cov deposits uas siv ECoCr-A (Cobalt 6) electrodes;qhia yob, kub extrusion thiab forging tuag, kub shear hniav, tong khoom, valve trim.