:100225855(2007)0520018208:(1953-),,,,(,110142);;;;:TH134:TG455:ADepositweldingonsealingsurfacefornuclearclassvalvesSUZhi2dong(ShenyangValveResearchInstitute,Shenyang110142,China)Abstract:Introducesbrandclassifying,chemicalcompositionandmaincharacteristicsofcobalt-basealloyusedtodepositsealingsurfacefornuclearclassvalves,andvariousmethodsofdepositionaswellasweldingtechnologicestimation.Keywords:nuclearvalves;cobalt-basealloy;technologicestimation;sealing;deposition14,,,RCC-MS8000,S8000(,)RCC-M,,EJ/T102719EJ/T1027116,2211(stellite),()13RCC-MS8000,45AWS,6GB984,EJ/T102719EJ/T1027116RCC-MS800016,(),RCC-MS8000612,AWSERCoCr-AERCoCr-B,GB984EDCoCr-AEDCoCr-BCCoCrW,GB984HS111HS1177,HS111HS112RCC-MS8000612,,,RCC-M21279,AWS,RCC-M8120075()Wt%CCrWNiMoMnSiFeCo2101180132251029100151175315418611110210310601931142610321031061031011011021031012112117261032107109153101101102103103-,018%2()Wt%CCrWNiMoMnSiFeCo210120013025102910015117531541861111221051060171142510321031061031011021021051012110117251032107109153101102102105103()Wt%CCrWNiCuMnSiFeBCoSF111501715201511151410121014101101104104151103104(AWSA5113)Wt%AWSCCrWNiMoMnSiFeCoRCoCr-A01911426103210310610310110110210310RCoCr-B11211726103210710915310110110210310RCoCr-C21031026103210111014103101101102103105(AWSA5113)Wt%AWSCCrWNiMoMnSiFeCoECoCr-A01711425103210310610310110210210510ECoCr-B11011725103210710915310110210210510ECoCr-C117531026103210111014103101102102105106(GB984)Wt%CCrWNiMoMnSiFeCoEDCoCr-A01911425103210310610210210510EDCoCr-B11211725103210710915210210510EDCoCr-C11753102510331011101410210210510EDCoCr-D012001502310321011101410210210510,(650),,650,,,1011AWSA51139120075(21)(AWSA5113)(HRC)CoCr-ACoCr-BCoCr-C-3847454948582347344743588(RCC-MS8000)61221(HRC)3850445426409(GB984)EDCoCr-AEDCoCr-BEDCoCr-CEDCoCr-D(HRC)4044532835:1200F(650),213Co,CrW10FCoCr-ACBGH-aH-bCoCr-CCEBGH-jE6503452916331326152918411043173517411246118504552413261821152815361641103119381040161050565201021181911221732133516291835113015120065015191917161421182518291924132910271914007604618a4518a4417a4918a4918a53195310a5314a5113a:aA111min4minminFCoCr-ACBGH-aH-bCoCr-CCEBGH-jE185045529732029130938838131942642948504553073502693063763943044094221120065025027427130432336326832632841200650235243237278258363234296298,CoCr,W,CCrW,,,CrWCrW,,,,,CrWCW,Fe-CCr-Ni,,,(FeCr-A)Cr7C3,,C(Fe)40HRCCr7C315002000VPN,,(0220075)60HRC600HB,,SiMo,Mo214C110%(CoCr-A),215%(CoCr-C),,,-1/20,CoCr-A,1/5CoCr-C,,CoCr,-215CoCr,,CoCr-C,CoCr-A,,216,1800F(980),,0110in1/a(215mm/a),,217CoCr,,,,,,218CSF-6221,19kHz,20m6h,011mg,,3,-311D802D812,GB984EDCoCr-AEDCoCr-B(RCC-MS8000612,AWSECoCr-AECoCr-B),,,,312--(),RCC-MS8000612AWSRCoCr-ARCoCr-BHS111HS112-,,,,,-,,(1),,,35mm,6010,,,46mm,,,,,,,,,,,,,1220075(2),,,23mm,,,,(),,(3),,,1520mm,4050mm,,,,,,(4),,313-,-12,13,203012(mm)(A)(mm)(L/min)3121201806138104101602208138124181802408168126142403201116101613(mm)()(A)21460240312160350(1)115,75,,,,,,,,,,-(2),3,,,,23,314,,,,,(),,,,,,,,,,,,,,,,,,,2220075(1),1600032000K,-31003200K,50006000K,900010000K,,,,,(2),,,,,(3),,,50180/in1,,,,,,,,12,,BSi,,,(4),,,(),,,,,,,,,,,,,,,,,,,,,,,(5),,,,,,,,,,,,95%,,BSi,,,,,,,315,,,,3220075()vv,,RCC-MS8300RCC-MS8300411,015mm,(1)12,6,C118%12,C212%,6,,Fe6%,Fe9%,Fe9%,Fe6%1412,5,,,413(2),,S3234f,4220075(700,),,1,.M.:,1994.2.M.:,1984.3RCC-M-1993,S.4AWSA5113-1980,S.(:2007105108)5220075