Cov khoom
SA516GR70
Dab tsi yog SA516GR70
SA516 Qib 70 yog ib qho kev qhia tshwj xeeb rau cov pa roj carbon steel phaj, feem ntau siv hauv kev tsim cov hlab ntsha thiab cov tso tsheb hlau luam. Nws yog ib feem ntawm ASME (American Society of Mechanical Engineers) Boiler and Pressure Vessel Code Section II, Part A. Qhov kev xaiv "SA" qhia tias nws yog ib qho kev qhia tshwj xeeb rau cov khoom siv thiab kev ua haujlwm, thaum "516" yog hais txog hom phaj.
Qhov zoo ntawm SA516GR70
Siab zog
SA516GR70 muaj lub zog tensile thiab cov txiaj ntsig zoo, uas ua rau nws tiv taus kev ntxhov siab thiab kev thauj khoom. Qhov no ua rau nws haum rau cov ntawv thov uas lub zog thiab kav ntev yog qhov tseem ceeb.
Zoo weldability
Cov khoom siv no tuaj yeem ua tau yooj yim welded siv cov txheej txheem vuam. Zoo weldability tso cai rau kev tsim kho ntawm cov qauv loj thiab kev koom ua ke ntawm cov khoom, muab kev yooj yim hauv fabrication.
Kuj kub
SA516GR70 qhia tau zoo tiv thaiv rau nruab nrab kub. Nws tuaj yeem tiv taus qhov kub thiab txias hauv qee yam yam tsis muaj qhov cuam tshuam loj ntawm nws cov khoom siv kho tshuab, ua rau nws tsim nyog rau cov ntawv thov uas cuam tshuam nrog cov cua kub nruab nrab.
Nqi-zoo
Piv rau lwm cov ntaub ntawv ua tau zoo, SA516GR70 yog tus nqi qis. Nws muaj thiab muaj peev xwm them taus ua rau nws yog qhov kev xaiv nrov hauv kev lag luam uas kev xav txog nyiaj txiag tseem ceeb.
Kev thov dav
Qib ntawm cov hlau no feem ntau yog siv rau hauv kev tsim cov hlab ntsha siab, boilers, thiab cov tank cia. Nws pom cov ntawv thov hauv ntau yam lag luam xws li roj thiab roj, tshuaj lom neeg, hluav taws xob tsim hluav taws xob, thiab kev tsim khoom.
Formability
SA516GR70 tuaj yeem tsim thiab ua rau ntau yam khoom thiab cov qauv los ntawm cov txheej txheem xws li dabtsi yog khoov, dov, thiab forging. Cov cuab yeej no tso cai rau customization thiab fabrication ntawm complex designs.
Vim Li Cas Xaiv Peb
Cov cuab yeej siv siab heev
Peb siv cov kev ntsuas zoo los xyuas kom meej tias peb ua haujlwm nrog cov khoom siv zoo tshaj plaws hauv kev lag luam thiab peb cov cuab yeej siv tau zoo thiab tswj xyuas kom zoo.
Cov khoom zoo
Peb ib txwm muab cov neeg siv khoom xav tau thiab kev cia siab nyob rau hauv thawj qhov chaw, ua kom zoo dua, kev txhim kho txuas ntxiv, nrhiav txhua lub sijhawm los ua kom zoo dua, muab cov neeg siv khoom xav tau ntawm cov khoom zoo, muab cov neeg siv khoom txaus siab tshaj plaws txhua lub sijhawm.
Cov nqi sib tw
Peb muab peb cov khoom ntawm tus nqi sib tw, ua rau lawv pheej yig rau peb cov neeg siv khoom. Peb ntseeg tias cov khoom lag luam zoo yuav tsum tsis txhob tuaj ntawm tus nqi, thiab peb siv zog ua kom peb cov khoom siv tau rau txhua tus.
Kev paub nplua nuj
Muaj lub koob npe nrov ntev hauv kev lag luam, uas ua rau nws sawv tawm ntawm nws cov neeg sib tw. Nrog rau ntau xyoo ntawm kev paub, lawv tau tsim cov txuj ci tsim nyog kom tau raws li lawv cov neeg siv khoom xav tau.
Kev tsim kho tshiab
Peb mob siab rau kev txhim kho peb cov tshuab tsis tu ncua, kom ntseeg tau tias cov cuab yeej peb muab yog ib txwm txiav.
Pab neeg tshaj lij
Peb muaj ib pab pawg neeg txawj ntse thiab paub txog cov kws tshaj lij uas paub zoo txog cov cuab yeej technology tshiab thiab cov qauv kev lag luam. Peb pab neeg mob siab rau kom ntseeg tau tias peb cov neeg siv khoom tau txais kev pabcuam zoo tshaj plaws thiab kev txhawb nqa tau.
SA516GR70 tuaj yeem siv rau hauv cov ntawv thov Cryogenic
SA516GR70 yog cov khoom siv carbon steel nrog cov khoom siv zoo thiab kev sib txuas. Txawm li cas los xij, nws siv hauv cov ntawv thov cryogenic tuaj yeem raug txwv vim nws qhov cuam tshuam rau qhov tawg ntawm qhov kub thiab txias Hauv cov ntawv thov cryogenic, cov ntaub ntawv raug rau qhov kub tsis tshua muaj siab, feem ntau qis dua -150 degree (-238 degree F). Ntawm qhov kub thiab txias, cov khoom siv kho tshuab tuaj yeem hloov pauv, thiab nws tuaj yeem ua rau tawg thiab ua tsis tiav. Txawm hais tias SA516GR70 tuaj yeem tiv taus qhov kub thiab txias rau qee qhov, nws tsis yog tsim tshwj xeeb lossis tsim nyog rau kev siv hauv qhov chaw cryogenic. Rau cov ntawv thov cryogenic, cov ntaub ntawv uas muaj qhov kub zoo dua, xws li cov hlau tsis tshua muaj kub lossis npib tsib xee alloys, feem ntau nyiam dua. Yog tias koj tab tom txiav txim siab siv SA516GR70 hauv daim ntawv thov cryogenic, nws raug nquahu kom sab laj nrog tus kws tsim khoom lossis cov kws tshaj lij los ntsuas qhov tsim nyog ntawm cov khoom siv thiab xyuas kom meej tias nws ua tau raws li qhov yuav tsum tau ua. Lawv tuaj yeem muab kev taw qhia rau lwm cov ntaub ntawv lossis pom zoo cov kev ntsuas tsim nyog los txhim kho cov khoom siv tiv thaiv cryogenic, yog tias tsim nyog.
Dab tsi yog cov cuab yeej cuab tam ntawm SA516GR70
Tensile zog
Qhov tsawg kawg nkaus tensile lub zog ntawm SA516GR70 yog 70 ksi (482 MPa). Qhov no txhais tau hais tias cov khoom tuaj yeem tiv taus qhov siab tshaj plaws ntawm 70, 000 phaus ib square inch yam tsis muaj kev tawg.
01
Yield zog
Qhov tsawg kawg nkaus tawm lub zog ntawm SA516GR70 yog 58 ksi (397 MPa). Yield zog yog qhov kev nyuaj siab uas cov khoom pib deform mus tas li.
02
Elongation
Qhov tsawg kawg nkaus elongation ntawm SA516GR70 yog 20%. Elongation yog ib qho kev ntsuas ntawm ntau npaum li cas cov khoom tuaj yeem ncav cuag ua ntej nws tawg.
03
Hardness
Lub hardness ntawm SA516GR70 feem ntau yog ntsuas siv Brinell nplai. Qhov tsawg kawg nkaus Brinell hardness ntawm SA516GR70 yog 160 BHN.
04
Impact Toughness
SA516GR70 muaj kev cuam tshuam zoo heev, uas txhais tau hais tias nws tuaj yeem nqus tau ntau lub zog yam tsis muaj kev tawg. Qhov cuam tshuam toughness feem ntau yog ntsuas los ntawm Charpy test.
05
Cov txheej txheem khaws cia thiab tuav yog dab tsi rau SA516GR70
Cia tej yam kev mob
Khaws SA516GR70 nyob rau hauv qhov chaw qhuav, zoo-ventilated los tiv thaiv kev ya raws. Qhov chaw cia yuav tsum huv si thiab tsis muaj corrosive tshuaj. Tiv thaiv cov khoom los ntawm kev tshav ntuj ncaj qha thiab huab cua kub hloov pauv.
Kev kho mob
Thaum tuav SA516GR70, siv cov cuab yeej nqa thiab cov txheej txheem kom tsis txhob muaj kev puas tsuaj. Tsis txhob tso tseg lossis ua tib zoo tuav cov khoom, vim nws tuaj yeem ua rau cov hniav, khawb, lossis lwm yam tsis xws luag.
Tsis txhob raug tshuaj lom neeg
Khaws SA516GR70 kom deb ntawm cov tshuaj uas yuav ua rau corrosion lossis degradation. Yog tias xav tias yuav raug tshuaj lom neeg, ua tib zoo ceev faj, xws li txheej los yog sealing cov khoom.
Kev tshuaj xyuas thiab kev saib xyuas
Tsis tu ncua tshuaj xyuas SA516GR70 khaws cia rau cov cim qhia ntawm kev puas tsuaj, corrosion, lossis lwm yam teeb meem. Ua haujlwm tsim nyog, xws li ntxuav lossis tiv thaiv xeb, raws li xav tau.
Stacked kom raug
Muab cov SA516GR70 daim hlau los yog cov khoom ntawm lub tiaj thiab txawm tias qhov chaw kom tsis txhob deformation. Siv cov txheej txheem stacking uas tsim nyog, xws li siv dunnage lossis kev txhawb nqa, kom faib qhov hnyav sib npaug. Tsis txhob muab cov khoom hnyav hnyav rau saum cov khoom.
Cov cim thiab cov ntaub ntawv
Kom meej meej sau lub SA516GR70 nrog cov ntaub ntawv tseem ceeb, xws li qib, qhov loj me, thiab ntau tus lej. Khaws cov ntaub ntawv raug cai ntawm kev khaws cia thiab tuav cov haujlwm, suav nrog cov ntaub ntawv tshuaj xyuas thiab kev puas tsuaj lossis kev kho.
Kev tiv thaiv los ntawm kev puas tsuaj
Tiv thaiv qhov chaw ntawm SA516GR70 los ntawm kev puas tsuaj thaum lub sij hawm cia thiab tuav. Siv cov ntaub ntawv ntim khoom kom zoo, xws li cov ntaub qhwv yas los yog cov ntawv corrugated, los tiv thaiv khawb lossis puas.
Kev thauj mus los
Thaum thauj SA516GR70, siv cov thawv ntim khoom tsim nyog lossis ntim khoom los tiv thaiv cov khoom ntawm kev puas tsuaj thaum thauj. Xyuas kom txoj kev thauj mus los tsis ua rau muaj kev ntxhov siab ntau dhau ntawm cov khoom siv.
SA516Gr70 Thaum tshav kub kub kho li cas
normalizing
Normalizing yog txheej txheem kev kho cua sov uas muaj cov cua sov ntawm cov phaj hlau mus rau qhov kub siab tshaj qhov kub thiab txias thiab tom qab ntawd txias hauv huab cua. Qhov normalizing kub rau ASTM A516Gr70 feem ntau yog nyob rau hauv thaj tsam ntawm 850-900 degree (1562-1652 degree F). Normalizing pab txhim kho cov khoom hardness, lub zog, thiab machinability.
Annealing
Annealing yog txheej txheem kev kho cua sov uas suav nrog cov cua sov ntawm cov phaj hlau mus rau qhov kub siab tshaj qhov kub thiab txias thiab maj mam txias rau hauv qhov chaw tswj los yog hauv qhov cub. Qhov ntsuas kub rau ASTM A516Gr70 feem ntau yog nyob hauv thaj tsam ntawm 650-700 degree (1202-1292 degree F). Annealing pab txo cov khoom hardness, txhim kho nws cov ductility, thiab txo cov kev ntxhov siab sab hauv.
Quenching thiab tempering
quenching thiab tempering yog txheej txheem kev kho cua sov uas muaj cov cua sov ntawm cov phaj hlau mus rau qhov kub siab tshaj qhov kub tseem ceeb, quenching hauv dej los yog roj kom txias sai, thiab tom qab ntawd tempering nws ntawm qhov kub thiab txias. Lub quenching kub rau ASTM A516Gr70 feem ntau yog nyob rau hauv thaj tsam ntawm 850-900 degree (1562-1652 degree F), thiab tempering kub yog feem ntau nyob rau hauv thaj tsam ntawm 600-650 degree (1112-1202 degree F). quenching thiab tempering pab txhim kho cov khoom hardness, lub zog, thiab toughness.
SA516GR70 Ua li cas
Kev xaiv raw khoom
Cov txheej txheem tsim khoom pib los ntawm kev xaiv cov khoom zoo raw khoom, feem ntau cov hlau ore thiab alloys xws li manganese, carbon, thiab lwm yam khoom uas ua rau cov khoom xav tau ntawm cov hlau.
Cov ntaub ntawv nyoos no tau ua tib zoo xaiv kom ua tau raws li cov cai ntawm cov tshuaj muaj pes tsawg leeg uas tau teev tseg rau SA516GR70.
Melting thiab Casting
Cov khoom siv raw uas tau xaiv yog yaj hauv lub qhov cub tawg lossis lub qhov cub hluav taws xob los tsim cov hlau molten.
Cov hlau molten no yog tom qab ntawd muab pov rau hauv ingots lossis slabs, uas yog cov hlau loj loj uas ua cov khoom pib rau kev ua haujlwm ntxiv.
Kub Rolling
Cov ingots los yog slabs yog reheated rau ib tug kub kub kom lawv malleable thiab ces dhau los ntawm ib tug series ntawm rollers kom txo lawv cov thickness thiab ua rau lawv nyob rau hauv daim hlau.
Cov txheej txheem kub dov no yog ua tib zoo tswj kom ntseeg tau tias qhov xav tau qhov ntev thiab qhov chaw tiav ntawm cov hlau phaj.
Txias thiab txias
Tom qab kub dov, cov ntawv hlau tau tso cai kom txias maj mam mus rau chav sov hauv qhov chaw tswj hwm.
Cov txheej txheem cua txias no, hu ua normalization, pab daws kev ntxhov siab sab hauv thiab txhim kho qhov sib xws ntawm cov hlau microstructure.
Kev kho cua sov
Raws li cov kev cai tshwj xeeb ntawm daim ntawv thov zaum kawg, SA516GR70 steel daim hlau yuav raug kho cov txheej txheem kub ntxiv xws li quenching thiab tempering los txhim kho lawv cov khoom siv kho tshuab.
Cov kev kho cua sov no tau ua tib zoo tsim los ua kom tau raws li qhov xav tau ua ke ntawm lub zog, ductility, thiab toughness.
Txiav thiab ua tiav
Tom qab ntawd cov hlau phaj yog txiav kom loj siv plasma txiav, laser txiav, lossis cov txheej txheem txiav tshuab.
Txhua qhov tsim nyog ua tiav, xws li kev sib tsoo lossis sandblasting, yog ua kom ua tiav qhov kev ntxhib los mos thiab qhov tsos.
Kev kuaj thiab tshuaj xyuas
Thoob plaws hauv cov txheej txheem tsim khoom, cov qauv ntawm cov hlau raug kuaj ib ntus kom ntseeg tau tias lawv ua tau raws li cov khoom siv tshuaj thiab cov cuab yeej siv tau teev tseg rau SA516GR70.
Cov kev ntsuam xyuas no yuav suav nrog kev sim tensile, kev ntsuam xyuas cuam tshuam, kev sim hardness, thiab kev tshuaj xyuas ultrasonic txhawm rau txhawm rau txheeb xyuas cov teeb meem sab hauv.
Certification thiab Shipping
Thaum kawg, cov hlau phaj tau ntawv pov thawj los ntawm cov chaw soj ntsuam ywj pheej kom paub meej tias lawv ua raws li cov qauv kev lag luam thiab cov neeg siv khoom tshwj xeeb.
Cov phaj tom qab ntawd ntim thiab xa mus rau cov neeg siv khoom siv rau hauv lawv cov ntawv tshwj xeeb.
Dab tsi yog Cov Kev Siv Feem Ntau Ntawm SA516GR70 Steel
Lub nkoj siab
Ib qho ntawm cov kev siv tseem ceeb ntawm SA516GR70 steel yog nyob rau hauv kev tsim kho cov hlab ntsha siab. Cov hlab ntsha no yog tsim los kom muaj cov pa roj lossis cov kua dej hauv lub siab thiab siv ntau yam kev lag luam, suav nrog kev ua tshuaj lom neeg, roj av refining, thiab tsim hluav taws xob.
Tanks thiab Cia Vessels
SA516GR70 kuj tseem siv tau rau hauv kev tsim kho lub tank loj thiab cov nkoj uas siv los khaws thiab thauj ntau yam ntaub ntawv, suav nrog tshuaj, roj, thiab roj. Cov tso tsheb hlau luam no yuav tsum muaj peev xwm tiv taus qhov kub thiab txias, ua rau SA516GR70 yog qhov kev xaiv zoo tshaj plaws.
Thaum tshav kub kub Exchangers
Thaum tshav kub kub exchangers yog siv los hloov cov cua sov ntawm ob lub kua, thiab SA516GR70 feem ntau yog siv nyob rau hauv lawv cov kev tsim kho vim nws zoo heev thermal conductivity thiab corrosion kuj.
Piping Systems
SA516GR70 kuj tseem siv rau hauv kev tsim kho cov kav dej uas thauj cov kua dej ntau yam nyob rau hauv siab thiab kub. Cov khoom siv no tshwj xeeb zoo rau kev siv hauv cov kav dej uas nqa cov roj, roj, thiab lwm yam khoom siv phom sij.
Cov Qauv Txheej Txheem
Ntxiv rau nws siv hauv cov hlab ntsha siab thiab cov tso tsheb hlau luam, SA516GR70 kuj tseem siv rau hauv kev tsim kho ntawm ntau yam khoom siv, xws li kab teeb, kab, thiab cov hlua khi. Cov khoom no yuav tsum muaj peev xwm tiv taus cov khoom hnyav thiab kev ntxhov siab, ua rau SA516GR70 yog qhov kev xaiv zoo tshaj plaws.
Tau SA516GR70 Hlau tau yooj yim Machined
Hardness
SA516GR70 feem ntau muaj qhov nyuaj dua piv rau cov hlau me me. Cov ntaub ntawv nyuaj dua yuav tsum muaj zog ntau dua thaum txiav thiab nyiam hnav cov cuab yeej txiav sai dua, uas tuaj yeem ua rau cov nqi machining nce thiab txo cov khoom tsim tau.
Lub zog thiab Toughness
Lub zog thiab tawv ntawm SA516GR70 txhais tau hais tias muaj zog ntau dua yuav tsum tau tshem tawm cov khoom thaum lub sijhawm ua haujlwm. Qhov no tuaj yeem ua rau cov cuab yeej hnav ntxiv thiab muaj peev xwm ua rau cov cuab yeej tawg, tshwj xeeb tshaj yog tias siv cov cuab yeej tsis raug lossis cov khoom siv.
Txheej txheem Optimization
Lub machining tsis xws li spindle ceev, pub tus nqi, thiab qhov tob ntawm txiav yuav tsum tau ua tib zoo optimized los tiv thaiv cov cuab yeej tsis ua hauj lwm thiab xyuas kom meej ib tug du machining txheej txheem. Qhov no yuav xav tau kev sim lossis kev sab laj nrog cov kws paub txog tshuab.
Coolants thiab Lubricants
Kev siv cov khoom ua kom zoo thiab cov roj nplua nyeem tuaj yeem txhim kho qhov ua tau zoo ntawm SA516GR70 los ntawm kev txo qis kev sib txhuam thiab kev tsim hluav taws xob. Dej txias los yog cryogenic txias tej zaum yuav tsim nyog los tswj cov cuab yeej zoo lub neej thiab nto tiav.
Cov cuab yeej txiav
Yuav kom siv tau zoo tshuab SA516GR70, cov cuab yeej tshwj xeeb txiav tej zaum yuav xav tau. Cov no tuaj yeem suav nrog cov khoom siv carbide, cov cuab yeej coated, lossis cov cuab yeej ceramic, nyob ntawm seb cov haujlwm tshwj xeeb. Kev xaiv cov cuab yeej yuav nyob ntawm qhov xav tau daim ntawv thov thiab cov yam ntxwv ntawm cov khoom raug machined.
Microstructure
Lub microstructure ntawm SA516GR70 tuaj yeem cuam tshuam rau kev ua haujlwm. Lub xub ntiag ntawm ferrite thiab pearlite nyob rau hauv lub microstructure tuaj yeem cuam tshuam cov chip tsim thiab lub neej cuab yeej. Kev kho cua sov kom zoo tuaj yeem ua kom zoo dua microstructure rau kev txhim kho machinability.
Thermal Expansion
Cov hlau muaj zog zoo li SA516GR70 muaj qis coefficients ntawm thermal expansion piv rau cov hlau me me. Qhov no tuaj yeem ua rau muaj kev cuam tshuam tsawg dua thaum lub sijhawm machining, tab sis nws kuj txhais tau hais tias cov khoom tsis dissipate tshav kub raws li tau yooj yim, uas tuaj yeem ua rau cov cuab yeej siab dua thiab hnav nrawm dua.
Dab tsi yog Qhov Kev Pom Zoo Rau SA516GR70 Steel Phaj
Lub thickness ntawm steel phaj yog feem ntau ntsuas ntawm ob peb lub ntsiab lus nyob rau hauv lub phaj dav kom ntseeg tau tias uniformity.
Thickness kam rau ua yog feem ntau teev raws li ib tug ntau yam, xws li ib tug yam tsawg kawg nkaus thiab siab tshaj thickness, los yog raws li ib tug feem pua ntawm nominal thickness.
Piv txwv li, lub phaj nrog lub nominal thickness ntawm 1 nti (25.4 mm) tej zaum yuav muaj ib tug tuab kam rau ua ntawm ±0.030 ntiv tes (± 0.76 mm), lub ntsiab lus ntawm qhov tseeb thickness yuav txawv ntawm 0.970 thiab 1.030 nti (24.64 thiab 26.16 mm).
Qhov dav thiab ntev ntawm cov hlau phaj kuj raug rau kev zam, uas feem ntau teev nyob rau hauv cov nqe lus ntawm qhov siab tshaj plaws sib txawv ntawm qhov txiav txim los yog nominal loj.
Cov kev tolerances no yuav raug nthuav tawm raws li qhov ntev, xws li ± 1/4 nti (± 6.35 mm), lossis raws li feem pua ntawm tag nrho qhov dav lossis ntev.
Nws yog ib qho tseem ceeb uas yuav tsum nco ntsoov tias qhov kev zam rau qhov dav thiab qhov ntev yuav txawv nyob ntawm lub phaj thickness thiab cov txheej txheem tsim khoom siv.
Flatness hais txog lub phaj lub peev xwm los pw tiaj tus yam tsis muaj kev cuam tshuam loj lossis cuam tshuam.
Flatness kam rau ua yog feem ntau teev nyob rau hauv cov nqe lus ntawm qhov siab tshaj plaws sib txawv ntawm ib tug zoo kawg nkaus tiaj tus, ntsuas tshaj ib tug ntev los yog cheeb tsam ntawm lub phaj.
Cov kev tolerances no yuav raug nthuav tawm raws li kev ntsuas kab, xws li qhov siab tshaj plaws ntawm ib qho taw tes saum toj lossis hauv qab lub dav hlau siv, lossis raws li qhov sib txawv ntawm qhov sib txawv ntawm qhov ntev ntawm lub phaj.
Camber hais txog kab rov tav curvature ntawm lub phaj, thaum cheb hais txog qhov nkhaus ntsug.
Tolerances rau camber thiab cheb yog feem ntau teev los xyuas kom meej tias lub phaj tsis deviate ntau dhau los ntawm ib txoj kab ncaj nraim thaum saib los ntawm sab los yog kawg.
Cov kev tolerances no yuav raug qhia raws li qhov siab tshaj plaws sib txawv ntawm ib qho ncaj ntug lossis raws li qhov sib txawv ntawm qhov sib txawv rau qhov ntev ntawm lub phaj.
Squareness hais txog qhov perpendicularity ntawm lub phaj cov npoo txheeb ze rau nws qhov chaw.
Tolerances rau squareness feem ntau tau teev tseg los xyuas kom meej tias cov npoo ntawm lub phaj tsis muaj qhov xwm txheej loj, uas tuaj yeem cuam tshuam qhov haum thiab kev ua haujlwm ntawm lub phaj hauv nws daim ntawv thov.
Cov kev tolerances no yuav raug nthuav tawm raws li qhov siab tshaj plaws ntawm qhov sib txawv ntawm 90 degrees lossis raws li kev ntsuas kab ntawm qhov sib txawv ntawm qhov siab tshaj plaws ntawm lub square zoo meej.
Dab tsi yog Vuam Kev Xav rau SA516GR70 Hlau
Kev npaj ua ntej vuam
Kev huv huv yog qhov tseem ceeb. Tshem tawm tag nrho cov av, roj, xeb, xim, thiab lwm yam kab mob los ntawm qhov chaw vuam siv txoj kev tu kom tsim nyog.
Xyuas kom meej tias cov npoo yuav tsum tau welded yog npaj kom zoo, xws li los ntawm beveling los yog chamfering, kom ua tiav qhov xav tau weld profile.
Preheat cov hlau yog tias xav tau los ntawm cov txheej txheem vuam specification (WPS) kom txo tau qhov txias txias thiab txo qhov kev pheej hmoo ntawm kev tawg.
Vuam txheej txheem xaiv
Xaiv cov txheej txheem vuam uas tsim nyog rau cov tuab thiab qib ntawm cov hlau, nrog rau qhov xav tau weld zoo. Cov txheej txheem muaj xws li shielded hlau arc vuam (SMAW), roj hlau arc vuam (GMAW), thiab flux-cored arc vuam (FCAW).
Xaiv qhov tsim nyog vuam electrodes lossis muab tub lim hlau uas sib haum nrog SA516GR70 steel thiab ua tau raws li qhov xav tau ntawm cov khoom siv kho tshuab.
Vuam Parameters
Optimize vuam tsis xws li tam sim no, voltage, thiab vuam ceev kom ua tau raws li kev nkag mus thiab fusion thaum txo cov cua sov input thiab distortion.
Siv cov khoom siv hluav taws xob qis mus rau nruab nrab kom txo tau qhov kev pheej hmoo ntawm cov qoob loo loj hlob thiab poob ntawm cov tawv nqaij nyob rau hauv qhov chaw kub ntxhov (HAZ).
Interpass Temperature Control
Khaws qhov kub ntawm qhov sib cuam tshuam hauv qhov kev pom zoo los tiv thaiv kev loj hlob ntawm cov qoob loo ntau dhau thiab ua kom cov khoom siv kho kom zoo hauv cov hlau vuam thiab HAZ.
Siv cov cuab yeej ntsuas kub, xws li cov ntsuas kub infrared lossis hu rau pyrometers, los ntsuas thiab tswj qhov ntsuas kub sib txawv.
Kev kho cua sov tom qab Weld
Yog tias xav tau los ntawm cov kev qhia tshwj xeeb lossis cov cai, ua cov kev kho cua sov tom qab vuam (PWHT) txhawm rau txo cov kev ntxhov siab seem, txhim kho ductility, thiab txhim kho cov tawv tawv ntawm qhov sib koom ua ke.
Ua raws li lub voj voog PWHT pom zoo, suav nrog tus nqi cua sov, qhov kub thiab txias txias, kom ua tiav cov txiaj ntsig xav tau.
Weld Inspection thiab Testing
Ua qhov kev tshuaj ntsuam xyuas kom ntseeg tau tias cov welds tsis muaj qhov tsis xws luag xws li tawg, porosity, thiab undercut.
Ua cov kev sim uas tsis yog kev puas tsuaj (NDT) xws li kev kuaj hluav taws xob (RT) lossis kuaj ultrasonic (UT) txhawm rau txheeb xyuas qhov tsis xws luag hauv qhov sib koom ua ke.
Ua ib qho kev sim ntsuas, suav nrog tensile, cuam tshuam, thiab hardness tests, los xyuas cov khoom siv ntawm cov hlau vuam thiab HAZ.
Welding Operator Skills
Xyuas kom tseeb tias cov neeg ua haujlwm vuam tsim nyog thiab muaj kev paub txog kev vuam SA516GR70 steel.
Muab kev cob qhia thiab kev ntsuam xyuas tsis tu ncua los tswj cov neeg ua haujlwm vuam cov kev txawj thiab kev paub.
Ua raws li Cov Qauv thiab Cov Cai
Ua raws li cov qauv kev sib txuas thiab cov lej, xws li cov ntawv luam tawm los ntawm American Welding Society (AWS), American Society of Mechanical Engineers (ASME), lossis lwm tus tub ceev xwm.
Ua raws li cov kev coj ua thiab cov txheej txheem uas tau teev tseg hauv WPS kom ua raws li cov kev cai tshwj xeeb.
Peb lub Hoobkas
Qinhuangdao Aotong tau tsim muaj nyob rau hauv 2004, nws yog ib tug geoup tswj tuam txhab uas muag nrog kev sau ntawm kev lag luam, hlau txuas ntxiv ua thiab warehousing logistics .Lub peb lub lag luam loj muaj xws li Aotong hlau chaw thiab lub Aotong logistics chaw .Lub Hoobkas npog thaj tsam ntawm 202000 square. meters.Lub tuam txhab tau tsim Chenggang Wuyang thiab lwm yam loj steel mills thiab cov tub lag luam thoob plaws lub teb chaws.Cov khoom tseem ceeb muaj xws li nruab nrab thiab hnyav steel daim hlau, kub dov coils, txias dov pickled daim hlau, profiles tsev cov ntaub ntawv, thiab lwm yam., nrog txhua xyoo muag khoom ntawm ntau tshaj. Ntau tshaj 300 txhiab tons.Ntxiv rau kev pabcuam ntau tus neeg siv khoom hauv tsev thiab cov haujlwm loj thiab nruab nrab, cov khoom raug xa tawm mus rau Tebchaws Europe, South America thiab Southeast Asia.
Cov ntawv pov thawj
FAQ
Q: SA516GR70 puas tuaj yeem siv rau hauv cov ntawv thov cryogenic?
Q: Dab tsi yog cov txheej txheem khaws cia thiab tuav rau SA516GR70?
Q: Qhov txawv ntawm SA516Gr70 thiab SA516Gr70QT yog dab tsi?
Q: Qhov txawv ntawm SA516Gr70 thiab SA533Gr70 yog dab tsi?
Q: Qhov txawv ntawm SA516Gr70 thiab SA387Gr70 yog dab tsi?
Q: SA516Gr70 puas tuaj yeem siv rau hauv cov ntawv thov kub?
Q: SA516Gr70 puas tuaj yeem siv rau hauv thaj chaw marine?
Q: Dab tsi yog qhov siab tshaj plaws ua haujlwm kub rau SA516Gr70?
Q: Dab tsi yog qhov tsawg kawg nkaus thickness rau SA516Gr70 daim hlau?
Q: SA516Gr70 puas tuaj yeem siv rau hauv daim ntawv thov nuclear?
Q: SA516Gr70 kub kho li cas?
Q: Qhov txawv ntawm SA516Gr70 thiab ASTM A572 Gr50 yog dab tsi?
Q: Dab tsi yog SA516GR70?
Q: Dab tsi yog cov khoom siv kho tshuab ntawm SA516GR70?
Q: Cov tshuaj muaj pes tsawg leeg ntawm SA516GR70 yog dab tsi?
Q: SA516GR70 ua li cas?
Q: Cov ntawv thov ntawm SA516GR70 yog dab tsi?
Q: Cov txheej txheem vuam rau SA516GR70 yog dab tsi?
Q: SA516GR70 tshuaj xyuas li cas?
Q: Dab tsi yog qhov corrosion kuj ntawm SA516GR70?
Cim npe nrov: sa516gr70, Tuam Tshoj sa516gr70 manufacturers, lwm tus neeg, Hoobkas
