Kev sib piv kev soj ntsuam ntawm ib leeg nias-Fitting thiab ob npaug nias-Fitting stainless hlau yeeb nkab fittings
Hauv cov kav dej stainless hlau, ib qho xovxwm-tsim thiab ob npaug nias-fitting yog txoj kev sib txuas. Cov hauv qab no muab cov ncauj lus kom ntxaws sib piv los ntawm cov yam ntxwv ntawm kev ua haujlwm ntawm kev siv tshuab, kev sib khi ua haujlwm, kev siv cov xwm txheej, thiab suav nrog cov ntaub ntawv txhawb nqa, suav nrog cov qauv hauv tsev thiab thoob ntiaj teb thiab kev tshawb fawb pom.
1. Kev sib piv cov qauv thoob ntiaj teb
1.1. ASTM A270 thiab ASTM A312
ASTM A270 1thiabASTM A 312 Cov Lus Qhiayog cov qauv tseem ceeb tshaj tawm los ntawm American Society for Testing and Materials (ASTM), dav siv hauv kev tsim cov kav hlau stainless thiab fittings.
ASTM A270 1: Feem ntau siv rau kev huv huv hauv cov kav dej stainless hlau, hais txog kev huv thiab kev tiv thaiv corrosion. Cov qauv no qhia txog lub cev tab sis tsis tsom rau cov yam ntxwv tshwj xeeb ntawm cov xovxwm-fittings.
ASTM A 312 Cov Lus Qhia: Siv rau kev lag luam stainless hlau seamless thiab welded kav, hais txog lub zog thiab corrosion kuj nyob rau hauv kev kub siab thiab kub. Cov qauv no zoo sib xws rau cov kev xav tau ntawm lub zog ntawm cov xovxwm-fittings, tshwj xeeb tshaj yog ob npaug nias-fittings.
1.2. TS EN 10312
TS EN 10312yog ib tug European tus qauv uas npog cov specifications rau nyias-walled stainless hlau kav thiab lawv fittings, nrog rau cov xovxwm-fittings.
Tib Xovxwm-Fitting: Raws li EN 10312 tus qauv, ib qho xovxwm-fittings yuav tsum ua tau raws li qee qhov kev siv zog tensile thiab siab tsis kam, tab sis tsuas yog txwv rau hauv cov ntawv thov siab.
Ob npaug nias-Fitting: Ob chav xovxwm-fittings tau pom zoo ntau dua hauv cov qauv no, tshwj xeeb tshaj yog rau kev siv siab thiab kev lag luam. Tus txheej txheem yuav tsum tau muab ob npaug rau xovxwm sib txuas kom dhau qhov kev sib khi nruj thiab kev sim ua rau qaug zog.
2. Kev tshawb nrhiav thoob ntiaj teb
2.1. Tensile Strength thiab Connection Strength Studies
Qee qhov kev tshawb fawb thoob ntiaj teb, xws li cov ntawv luam tawm hauvPhau ntawv Journal of Materials Processing Technology, tau tshuaj xyuas lub zog tensile thiab kev sib txuas lub zog ntawm stainless hlau nias-fittings:
Kev tshawb nrhiav pom: Ob chav xovxwm-fittings outperform ib zaug nias-fittings nyob rau hauv tensile lub zog, uas qhia qhov nruab nrab nce ntawm li ntawm 15-20%. Qhov no yog vim hais tias ob lub xovxwm tsim muab ntau yam kev ntxhov siab faib, txo cov kev ntxhov siab hauv cheeb tsam.
Daim ntawv thov Scenario: Txoj kev tshawb no tshwj xeeb tshaj yog hais tias ob lub xovxwm-fittings yog superior nyob rau hauv ib puag ncig uas yuav tsum tau ntev kev nyuaj siab endurance, xws li nyob rau hauv marine, petrochemical, thiab nuclear industries.
2.2. Fatigue Resistance Studies
Nyob rau hauv lwm txoj kev tshawb fawb luam tawm nyob rau hauv lubInternational Journal of Fatigue, cov kws tshawb fawb tau sim cov kev ua tau zoo ntawm cov hlau tsis muaj steel xovxwm-fittings nyob rau hauv rov qab loading los soj ntsuam lawv qaug zog tiv thaiv:
Kev tshawb nrhiav pom: Ob chav xovxwm-fittings tswj kev sib khi zoo thiab kev ua haujlwm ruaj khov txawm tias tom qab 500, 000 lub voj voog thauj khoom, thaum ib qho xovxwm-fittings pib qhia me ntsis tom qab 300, 000 cycles. Qhov no qhia tau hais tias ob lub xovxwm-fittings muaj lub neej ntev dua nyob rau hauv kev siv ntau zaus.
2.3. Kev tshawb fawb txog kev sib khi thiab tiv thaiv dej
Ib txoj kev tshawb fawb los ntawm Fraunhofer lub koom haum hauv lub teb chaws Yelemees tau tsom mus rau kev sib khi ua haujlwm:
Tib Xovxwm-Fitting: Ntawm qhov kub thiab txias, qhov tso tawm ntawm ib qho xovxwm-fittings yog nyob rau hauv thaj tsam ntawm 10^-5 cm³/s, ua tau raws li cov qauv rau cov dej hauv tsev.
Ob npaug nias-Fitting: Tus nqi xau rau ob npaug nias-fittings yog tsawg dua 10^-6 cm³/s. Hauv qhov chaw muaj kev kub ntxhov lossis corrosive, ob chav xovxwm-fittings pom tau tias muaj kev tiv thaiv zoo dua. Txoj kev tshawb no tau taw qhia tias cov qauv kev sib khi ntawm ob lub xovxwm-fittings zoo heev txhim kho kev sib khi kev ntseeg siab.
3. International Application Scenarios
3.1. Industrial thiab High-Pressure Systems
Teb chaws Europe: Hauv Tebchaws Europe, ob chav xovxwm-fittings tau siv dav hauv cov tsev siab siab thiab cov kav dej muaj kev lag luam, tshwj xeeb tshaj yog nyob rau hauv high-pressure steam thiab gas kis systems, qhov twg muaj kev kub siab tiv thaiv thiab sealing tseem ceeb heev.
North America: Hauv North America, kev lag luam roj thiab roj feem ntau xaiv ob npaug nias-fittings vim lawv lub neej ntev thiab kev sib khi zoo dua hauv qhov chaw hnyav.
3.2. Public Facilities and Residential Buildings
European Standards(xws li EN 10312) kuj pom zoo kom siv ob lub xovxwm-fittings nyob rau hauv vaj tse thiab kev lag luam hauv tsev dej, tshwj xeeb tshaj yog rau cov tsev siab siab, kom muaj kev ruaj ntseg ntev thiab kev nyab xeeb.
Tebchaws Meskas: Ib leeg xovxwm-fittings feem ntau yog siv nyob rau hauv cov dej nyob rau hauv lub tebchaws United States vim lawv yooj yim ntawm installation thiab txo nqi, tab sis cov kev cai feem ntau yuav tsum tau ob npaug nias-fittings rau high-sawv vaj tse.
Xaus
Los ntawm kev sib koom ua ke cov qauv hauv tsev thiab thoob ntiaj teb thiab kev tshawb fawb tshawb pom, cov lus xaus hauv qab no tuaj yeem kos:
Mechanical Performance: Cov kev tshawb fawb thoob ntiaj teb thiab cov qauv tseem txhawb nqa lub zog tensile superior, qaug zog tiv thaiv, thiab sealing kev ua tau zoo ntawm ob chav xovxwm-fittings, tshwj xeeb tshaj yog nyob rau hauv high-pressure thiab complex ib puag ncig.
Sealing thiab tiv thaiv dej: Cov txheej txheem thoob ntiaj teb (xws li EN 10312) thiab kev tshawb fawb qhia txog kev sib khi zoo tshaj ntawm ob lub xovxwm-fittings, ua rau lawv tsim nyog rau kev thov kev lag luam thiab thaj chaw ntau dua.
Daim ntawv thov Scenario: Ob chav xovxwm-fittings tau siv dav thoob ntiaj teb hauv cov tsev siab siab, cov kav dej ua haujlwm, thiab cov tshuab ua haujlwm siab, thaum cov xovxwm ib leeg yog qhov tsim nyog rau cov nqi-rhiab thiab tsis xav tau daim ntawv thov.
Kev sib xyaw ua ke ntawm cov ntaub ntawv hauv tsev thiab thoob ntiaj teb thiab cov qauv muab kev qhia dav dav thiab kev tshawb fawb los xaiv cov khoom tsim nyog rau ib qhov project. Rau kev tshawb fawb tob ntxiv lossis cov lus pom zoo ntawm daim ntawv thov tshwj xeeb, cov qauv tsim thiab cov ntaub ntawv thev naus laus zis yuav tsum tau sab laj.