Hlau hlau yeeb nkab yog cov kav dej siv dav hauv cov ntawv thov kev lag luam, thiab nws qhov zoo cuam tshuam ncaj qha kev nyab xeeb thiab kev ntseeg tau. Txhawm rau kom ntseeg tau tias cov hlau xaim hlau sib txuas tau ua tau raws li cov qauv kev siv thiab kev tshuaj xyuas kev siv cov khoom, cov qauv kev ncaj ncees, thiab cov yam ntxwv kev ncaj ncees. Hauv qab no qhia txog tus qauv hlau hlau yeeb nkab tshuaj xyuas cov kauj ruam thiab cov kauj ruam tseem ceeb.
I. Pom kev tshuaj xyuas
Cov tsos tshuaj xyuas yog thawj kauj ruam hauv kev ntsuas cov yeeb nkab steel hlau yeeb. Nws feem ntau yuav cuam tshuam kev kuaj xyuas lossis cov cuab yeej ntsuas (xws li lub khob loj dua) los xyuas rau qhov tsis xws luag. Soj ntsuam cov ntsiab lus suav nrog:
1. Nto cov kab kos thiab tawg: saib cov yeeb nkab sab hauv thiab sab nraud ntawm cov khawb av rau cov khawb, lossis los ntawm- lub qhov tawg.
2. Kev sib txawv ntawm cov txheej txheem: Txheeb xyuas cov taub sab hauv, phab ntsa thickness, thiab ntev ntawm cov qauv yeeb yaj kiab lossis cov qauv kev lag luam (piv txwv li GB / T 14976-2012, "Seamless stainless hlau kav dej thauj mus los").
3. Weld Zoo (rau Welded Hlau Yeeb Nkab): Tshawb xyuas Weld rau cov tsis xws luag xws li pores, slag suav, lossis tsis muaj fusion.
4. Txheej Kev Ncaj Ncees (yog tias muaj cai): Txheeb xyuas tias cov anti- corrosion txheej los yog cov tawv nqaij malips
Cov tsos tshuaj xyuas yuav tsum tau ua nyob rau hauv lub teeb pom kev lossis lub teeb ci teeb pom kev zoo, thiab cov kev txawv txav yuav tsum tau sau tseg rau kev tsom xam tom qab.
Ii. Kev tshuaj xyuas seem thiab cov ntsuas hluavtaws
Qhov chaw nyob sab nraud ntawm cov yeeb nkab xaim hlau nrog nws cov khoom sib txuas nrog kev sib txuas nrog kev ntsuas ntsuas lossis cov twj paj nruag:
1. Sab hauv thiab sab hauv diameters: Siv tus micrometer: Siv tus micrometer lossis laser caliper los ntsuas qhov ntau thiab tsawg kawg nkaus diameters ntawm cov yeeb nkab, kom ua rau muaj kev sib txawv ntawm ± 0.5%;
2. Phab ntsa thuv uniformity: siv ultrasonic tuab hlua neeg soj ntsuam cov yeeb nkab ntawm ntau lub ntsiab lus raws nws txoj kev ncig ua ke. Phab ntsa thickness sib txawv yog feem ntau tswj tsis pub dhau mus ± 10%;
3. Ncaj ncees: Siv cov kev coj tus Ntsuj Plig lossis hom hlau kos duab los tshuaj xyuas qhov nkhaus ntawm cov yeeb nkab. Txoj cai ncaj qha feem ntau tsis tshaj 0.1% ntawm tag nrho ntev;
4. Nce: Ntsuas qhov sib txawv ntawm qhov siab tshaj plaws thiab tsawg kawg nkaus diameters nyob rau hauv tib tus ntoo khaub lig- seem. Lub Ncauj yuav tsum ua raws li kev txwv tus qauv (piv txwv li, API 5L yuav tsum tau tsawg dua lossis sib npaug rau 1%).
III. Cov Khoom Siv Neeg Kho Tshuab Kev Ntsuas
Cov cuab yeej kho tshuab yog qhov taw qhia tseem ceeb ntawm cov thauj khoom - cov kabmob muaj peev xwm ntawm cov hlau xaim hlau hlau. Kev kuaj sim yog yuav tsum tau txheeb xyuas lawv lub zog thiab tawv:
1.Tus kuaj: Cov qauv ntawm cov yeeb nkab raug txiav thiab kuaj rau lub zog tensile, kom muaj zog siv lub tshuab kuaj thoob ntiaj teb. Cov txiaj ntsig yuav tsum muaj raws cov qauv khoom (xws li ASTM A53 lossis GB / T 8162).
2.Txhua kev sim: nto hardness ntawm cov yeeb nkab yog ntsuas siv pob zeb los yog brinell hardness teser kom ntseeg tau tias nws phim cov qhab nia qib.
3.flattening kev ntsuam xyuas (muaj feem xyuam rau nyias - cov pa dej walled): cov yeeb nkab yog pluav rau cov kev sib dhos thiab kev ua kom tawg.
4.imvact kuaj (siv rau tsawg -}}}}}}} kub siv los ntsuam xyuas cov khoom siv tawv ntawm cov kub tsawg.
V. Nondestructive Testing
Nondestructive Testing (NDT) cov tswv yim yog siv los tshawb xyuas sab hauv lossis zais sab qhov tsis xws luag nyob rau hauv cov qauv yeeb nkab yam tsis muaj kev rhuav tshem cov qauv yeeb nkab. Cov kev sib xws suav nrog:
1.Txoj kev sim tshuaj (ut): Ntsuas cov kab nrib pleb
2.Radiographic Xeem (RT): Siv x - e}} e}} e}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}} e porosity thiab tsis tiav poretation) hauv welds;
3.Magnictic particle kuaj (MT): Tshawb xyuas saum npoo lossis ze - cov khoom tawg hauv cov ntaub ntawv ferromagnetic. Sib nqus me me yog thov tom qab cov yeeb nkab yog magnetized;
4.penetrant Kuaj (PT): Tshawb nrhiav qhov chaw nres tawm nto nyob rau hauv tsis - Cov ntaub ntawv fluorescent lossis dyed nkag mus.
NDT yuav tsum tau ua los ntawm cov neeg muaj ntawv pov thawj, thiab kev lees txais ntawm tsis xws luag yuav tsum raug txiav txim siab raws li cov qauv (xws li NB / T 47013).
IV. Siab Thiab Leakage Testing
Rau Hlau Hlau Hlua Roj Siv Siv hauv Siab -}} Cov ntaub ntawv thov kev ua tau zoo los ntawm kev sim ua haujlwm tiag tiag:
1.Hydraulic siab kuaj: Sau cov yeeb nkab nrog dej thiab nias nws mus rau 1.5 zaug tsim qauv siab (lossis tus nqi txheem). Saib xyuas lub siab rau 10-30 feeb thiab saib rau txi lossis deformation.
2. Cua nruj nreem xeem (muaj feem xyuam rau cov pa roj txheem): Siv cov pa roj teeb lossis nitrogen kom pleev xim cov yeeb nkab rau cov nqi teev. Siv cov xab npus los yog lub ntsuas dej xau los xyuas cov dej xau me.
3.Vacuum xeem (rau cov xwm txheej tshwj xeeb): Tshawb cov yeeb nkab cov qauv hluav taws xob ruaj khov nyob rau hauv siab phem. VI. Tshuaj Muaj Kev Ntsuam Xyuas Kev Ntsuam Xyuas
Lub corrosion tsis kam thiab cov khoom siv mechanical ntawm cov hlau xaim yeeb nkab muaj feem cuam tshuam nrog nws cov tshuaj lom neeg muaj pes tsawg leeg. Spectroscopic Kev Tshawb Xyuas (xws li ncaj qha {1} Nyeem cov lus) lossis cov tshuaj lom neeg yuav tsum tau sim rau cov ntsiab lus hauv qab no:
• Cov pa yooj yim xws li carbon (c), silicon (si), manganese (mn), phosphorus (p), thiab leej faj (s);
• Cov khoom siv aloyoy xws li chromium (cr), npib tsib), thiab molybdenum (rau stainless hlau lossis stainless hlau yeeb nkab hlau);
• Cov ntsiab lus ntawm kev ua phem rau cov impurities (xws li coj thiab arsenic) yuav tsum ua raws li ib puag ncig lossis kev lag luam txwv.
VII. Daim ntawv qhia zaum kawg thiab lees txais kev txiav txim siab
Tom qab tag nrho cov kev ntsuam xyuas tau ua tiav, cov ntaub ntawv yuav tsum yog SUMMARGARDED thiab tus qauv qhia qauv qauv. Daim ntawv tshaj tawm no suav nrog:
• Cov khoom sim, cov hau kev, thiab cov qauv ntsuas cov qauv;
• Sib piv ntawm cov ntaub ntawv ntsuas nrog cov qauv;
• Cov lus piav qhia ntawm cov kev kho kom pom zoo thiab pom zoo (xws li rov ua haujlwm, kos, lossis downgrading).
Tsuas yog thaum twg txhua qhov ntsuas tau raws li kev pom zoo lossis cov qauv siv hauv tebchaws (xws li GB, Api, ASME, thiab lwm yam.
Cov hlau xaim xaim tshuaj ntsuam xyuas txheej txheem yog cov kauj ruam tseem ceeb hauv kev ua kom pom tseeb nws cov kev ua tau zoo thiab kev nyab xeeb, cov qauv kev lag luam. Los ntawm kev sim ua kom pom ntawm cov tsos, cov khoom siv txhua yam, uas tsis muaj kev cuam tshuam nrog cov khoom lag luam uas muaj kev puas tsuaj rau cov ntawv thov kev lag luam.