Cobalt esekelwe ingxubevange utyalo lokugalela iimveliso ezivela China Foundry original kunye nonyango ubushushu kunye neenkonzo machining CNC
| Iintsimbi zeInkqubo yoTyalo malikwi RMC | |||
| Udidi | China iBanga | IBanga lase-US | IBanga laseJamani |
| Intsimbi yeCarbon | ZG15, ZG20, ZG25, ZG35, ZG45, ZG55, Q235, Q345, Q420 | 1008, 1015, 1018, 1020, 1025, 1030, 1035, 1040, 1045, 1050, 1060, 1070, WC6, WCC, WCB, WCA, LCB | 1.0570, 1.0558, 1.1191, 1.0619, 1.0446, GS38, GS45, GS52, GS60, 1.0601, C20, C25, C30, C45 |
| Intsimbi ye-Alloy ephantsi | 20Mn, 45Mn, ZG20Cr, 40Cr, 20Mn5, 16CrMo4, 42CrMo, 40CrV, 20CrNiMo, GCr15, 9Mn2V | 1117, 4130, 4140, 4340, 6150, 5140, WC6, LCB, Gr.13Q, 8620, 8625, 8630, 8640, H13 | GS20Mn5, GS15CrNi6, GS16MnCr5, GS25CrMo4V, GS42CrMo4, S50CrV4, 34CrNiMo6, 50CrMo4, G-X35CrMo17, 1.1131, 1.0037, 1.0122, 1.2162, 1.2542, 1.6511, 1.6523, 1.6580, 3, 2, 1.713 1.7225, 1.7227, 1.7228, 1.7231, 1.7321, 1.8519, ST37, ST52 |
| High Mn Steel | ZGMn13-1, ZGMn13-3, ZGMn13-5 | B2, B3, B4 | 1.3802, 1.3966, 1.3301, 1.3302 |
| Isixhobo sentsimbi | Cr12 | A5, H12, S5 | 1.2344, 1.3343, 1.4528, GXCrMo17, X210Cr13, GX162CrMoV12 |
| Intsimbi ekwaziyo ukumelana nobushushu | 20Cr25Ni20, 16Cr23Ni13, 45Cr14Ni14W2Mo | 309, 310, CK20, CH20, HK30 | 1.4826, 1.4828, 1.4855, 1.4865 |
| I-Nickle-base Alloy | HASTELLY-C, HASTELLY-X, SUPPER22H, CW-2M, CW-6M, CW-12MW, CX-2MW, HX(66Ni-17Cr), MRE-2, NA-22H, NW-22, M30C, M-35 -1, INCOLOY600, I-INKOLOY625 | 2.4815, 2.4879, 2.4680 | |
| I-Cobalt-base Alloy | UMC50, 670, Grade 31 | 2.4778 | |
I-alloy-based alloy yi-alloy eqinile enokumelana neentlobo ezahlukeneyo zokunxiba, ukubola kunye ne-oxidation ephezulu yokushisa. I-alloys esekwe kwi-cobalt isekelwe kwi-cobalt njengeyona nto iphambili, iqulethe isixa esikhulu senikeli, i-alloying elements zekhemikhali ezifana ne-chromium, i-tungsten kunye nenani elincinci lezinto ezixubileyo ezifana ne-molybdenum, i-niobium, i-tantalum, i-titanium, i-lanthanum, kunye nentsimbi ngamaxesha athile. . Ngokokwakheka okwahlukileyo kwe-alloy, i-alloy esekwe kwi-cobalt inokwenziwa kwi-welding wire, kwaye umgubo unokusetyenziselwa ukuwelda kobuso obuqinileyo, ukutshiza nge-thermal, i-welding yesitshizi kunye nezinye iinkqubo, kwaye isenokwenziwa kwi-castings. , i-forging kunye namalungu e-metallurgy angumgubo. Ihlelwe ngokusetyenziswa kokugqibela, i-cobalt-based alloys inokwahlulwa ibe yi-cobalt-based wear-resistant alloys, i-cobalt-based high-temperature alloys kunye ne-cobalt-based based solution corrosion-resistant alloys. Kwiimeko zokusebenza ngokubanzi, zombini ziyakwazi ukunxiba kunye nobushushu obuphezulu okanye ubushushu obuphezulu okanye ukunxiba kunye ne-corrosion-resistant. Ezinye iimeko zokusebenza zinokufuna ubushushu obuphezulu, ukunxiba kunye nokunganyangeki komhlwa ngaxeshanye. Xa iimeko zokusebenza zinzima ngakumbi, zibonakala ngakumbi iingenelo ze-cobalt-based alloys.
Iipropati ze-Cobalt-Based Alloys
I-carbides eziphambili kwi-cobalt-based superalloys yi-MC, i-M23C6 kunye ne-M6C. Kwii-alloys ezisekelwe kwi-cobalt, i-M23C6 iyancipha phakathi kwemida yeenkozo kunye ne-dendrites ngexesha lokupholisa kancinci. Kwezinye i-alloys, i-M23C6 entle inokwenza i-eutectic kunye ne-matrix γ. I-MC carbide particles zikhulu kakhulu ukuba zibe nefuthe elibalulekileyo kwi-dislocations, ngoko umphumo wokuqinisa kwi-alloy awubonakali, ngelixa i-carbides ehlakazekileyo inefuthe elihle lokomeleza. I-carbides ehlala kumda wengqolowa (ingakumbi i-M23C6) inokuthintela ukutyibilika komda wengqolowa, ngaloo ndlela iphucula amandla okunyamezela. I-microstructure ye-cobalt-based superalloy HA-31 (X-40) yinqanaba elichithwayo lokomeleza (CoCrW) i-6 C-type carbide. Izigaba ezivaliweyo ze-topological ezibonakala kwezinye i-cobalt-based alloys, ezifana ne-sigma phase ziyingozi kwaye zenza i-alloy brittle.
Ukuzinza kwe-thermal ye-carbides kwi-cobalt-based alloys kulungile. Xa iqondo lokushisa liphakama, izinga lokukhula lokuqokelelwa kwe-carbide licotha kunezinga lokukhula kwesigaba se-γ kwi-alloy esekelwe kwi-nickel, kwaye iqondo lokushisa lokuchithwa kwakhona kwi-matrix liphezulu (ukuya kwi-1100 ° C) . Ngoko ke, xa izinga lokushisa liphakama, i-cobalt-based alloy Amandla e-alloy ayancipha ngokubanzi. I-alloys esekwe kwi-cobalt inokumelana ne-thermal corrosion. Isizathu sokuba i-cobalt-based alloys iphezulu kune-nickel-based alloys kule nkalo kukuba indawo yokunyibilika kwe-cobalt sulfide (efana ne-Co-Co4S3 eutectic, 877℃) iphezulu kune-nickel (Umzekelo, i-Ni-Ni3S2 eutectic (645°C) iphezulu, kwaye izinga lokusasazwa kwesalfure kwicobalt lingaphantsi kakhulu I-nickel. Kwaye ngenxa yokuba i-alloys eninzi esekelwe kwi-cobalt inomxholo ophezulu we-chromium kune-alloys esekelwe kwi-nickel, inokwenza umaleko okhuselayo we-alkali yensimbi ye-sulfate (njenge-Cr2O3 yokukhusela ekhutshwe yi-Na2SO4) phezu kwe-alloy , ukuxhathisa kwe-oxidation ye-cobalt-based alloys ngokuqhelekileyo iphantsi kakhulu kune-nickel-based alloys.
Ngokwahlukileyo kwezinye ii-superalloys, i-cobalt-based superalloys ayiqiniswanga yinqanaba lemvula eliyalelweyo lidityaniswe ngokuqinileyo kwi-matrix, kodwa zenziwe nge-matrix ye-austenite fcc eye isisombululo esiqinileyo esomeleziweyo kunye nenani elincinci le-carbides elisasazwa kwi-matrix. Ukuphosa i-cobalt-based superalloys kuxhomekeke kakhulu ekuqiniseni i-carbide. Iikristale ze-cobalt ezicocekileyo zine-hexagonal evaliweyo (hcp) isakhiwo se-crystal esingaphantsi kwe-417 ° C, eguqulela kwi-fcc kumaqondo aphezulu. Ukuze ugweme olu tshintsho ngexesha lokusetyenziswa kwe-cobalt-based superalloys, ngokuqhelekileyo zonke ii-alloys ezisekelwe kwi-cobalt zixutywe nge-nickel ukwenzela ukuzinzisa isakhiwo ukusuka kwiqondo lokushisa ukuya kwiqondo lokunyibilika. I-alloys esekelwe kwi-Cobalt inobudlelwane obuphezulu boxinzelelo lwe-fracture-iqondo lobushushu, kodwa ibonisa ukuxhathisa okuphezulu kwe-thermal kubushushu kumaqondo obushushu angaphezu kwe-1000 ° C kunamanye amaqondo aphezulu.
Ukushisa Ukushisa kwe-Cobalt-based Alloys
Ubungakanani kunye nokusabalalisa iinqununu ze-carbide kunye nobukhulu beenkozo kwii-alloys ezisekelwe kwi-cobalt zivakalelwa kakhulu kwinkqubo yokuphosa. Ukuze ufezekise amandla afunekayo okunyamezela kunye neepropati zokudinwa kwe-thermal ye-cobalt-based based alloy casting parts, iiparamitha zenkqubo yokuphosa kufuneka ilawulwe. I-alloys esekelwe kwi-cobalt idinga unyango lobushushu, ngokukodwa ukulawula imvula ye-carbides. Kwii-alloys ezisekelwe kwi-cobalt, okokuqala kuqhutywe unyango oluphezulu lwesisombululo esiqinileyo, ngokuqhelekileyo kwiqondo lokushisa malunga ne-1150 ° C, ukwenzela ukuba zonke ii-carbides eziphambili, ezibandakanya ezinye ze-MC-type carbides, zichithwa kwisisombululo esiqinileyo; ke, unyango lokuguga lwenziwa kwi-870-980 ° C. Yenza i-carbides iphinde ibe yimvula.
AmaBanga aqhelekileyo e-Cobalt-based Alloys
Amabanga aqhelekileyo e-cobalt esekelwe kwi-alloys yobushushu obuphezulu ngala: 2.4778 (ngokwe-DIN EN 10295)Hayness 188, Haynes 25 (L-605), i-alloy S-816, UMCo-50, MP-159, FSX-414, X -40, iStellite 6B, iBakala 31, njl. njl. GH5188 (GH188), GH159, GH605, K640, DZ40M njalo njalo.
Usetyenziso lweCobalt-based Alloy Castings
Ngokuqhelekileyo, i-cobalt-based superalloys ayinazo izigaba zokuqinisa ezihambelanayo. Nangona amandla kubushushu obuphakathi esezantsi (kuphela yi-50-75% ye-alloys esekwe kwi-nickel), banamandla aphezulu, ukumelana nokudinwa kwe-thermal, ukuxhathisa i-abrasion, i-weldability engcono kunye nokuxhathisa kwe-thermal corrosion ngaphezu kobushushu be-980 ° C. Ke ngoko, ii-cobalt-based alloy castings zifaneleka ikakhulu ukwenza i-vanes yesikhokelo kunye ne-nozzle yesikhokelo se-vanes yeenjini ze-jet yenqwelomoya, iiinjini zegesi zemizi-mveliso, iiinjini zegesi yasemanzini, kunye nemibhobho ye-injini ye-diesel, njl.
