1. Khoom siv
1.1.Kev xaiv cov ntaub ntawv yuav tsum ua raws li cov qauv tsim ntawm lub teb chaws cov yeeb nkab thiab cov qauv raw khoom xav tau los ntawm tus tswv.
1.2.Tom qab nkag mus rau hauv lub Hoobkas, cov neeg kuaj xyuas thawj zaug xyuas cov ntaub ntawv pov thawj thawj zaug uas tau muab los ntawm cov chaw tsim khoom thiab cov ntaub ntawv tshuaj xyuas cov khoom ntawm tus neeg xa khoom.Xyuas seb cov cim ntawm cov ntaub ntawv puas ua tiav thiab ua raws li daim ntawv pov thawj zoo.
1.3.Rov xyuas cov ntaub ntawv uas tau yuav tshiab, nruj me ntsis tshuaj xyuas cov tshuaj muaj pes tsawg leeg, qhov ntev, phab ntsa thickness, txheej kab (inch) thiab nto zoo ntawm cov ntaub ntawv raws li tus qauv yuav tsum tau, thiab sau cov batch naj npawb thiab cov yeeb nkab tooj ntawm cov ntaub ntawv.Cov ntaub ntawv tsis tsim nyog tsis raug tso cai los khaws cia thiab ua tiav.Sab hauv thiab sab nraud ntawm cov yeeb nkab steel yuav tsum tsis muaj kab nrib pleb, folds, dov folds, scabs, delaminations thiab kab plaub hau.Cov teeb meem no yuav tsum raug tshem tawm tag nrho.Qhov kev tshem tawm qhov tob yuav tsum tsis pub tshaj qhov tsis zoo sib txawv ntawm nominal phab ntsa thickness, thiab qhov tseeb phab ntsa thickness ntawm qhov chaw ntxuav yuav tsum tsis txhob tsawg tshaj li qhov tsawg kawg nkaus tso cai phab ntsa thickness.Nyob rau sab hauv thiab sab nrauv ntawm cov yeeb nkab steel, qhov kev tso cai tsis raug loj yuav tsum tsis pub tshaj cov kev cai hauv cov qauv sib xws, txwv tsis pub nws yuav raug tso tseg.Cov nplai oxide nyob rau sab hauv thiab sab nrauv ntawm cov kav hlau steel yuav tsum raug tshem tawm thiab kho nrog kev tiv thaiv corrosion.Kev tiv thaiv corrosion yuav tsum tsis txhob cuam tshuam qhov kev tshuaj xyuas qhov muag thiab tuaj yeem raug tshem tawm.
1.4.Mechanical zog
Cov khoom siv kho tshuab yuav tsum ua tau raws li cov qauv, thiab cov tshuaj muaj pes tsawg leeg, geometric dimension, zoo li qub thiab cov khoom siv kho tshuab yuav tsum raug kuaj xyuas thiab lees txais.
1.5 Cov txheej txheem ua haujlwm
1.5.1.Cov kav hlau yuav tsum raug rau 100% kev kuaj ultrasonic tsis muaj kev puas tsuaj ib los ntawm ib qho raws li SEP1915, thiab cov qauv qauv rau kev kuaj ultrasonic yuav tsum muab.Qhov tsis zoo qhov tob ntawm cov qauv qauv yuav tsum yog 5% ntawm phab ntsa tuab, thiab qhov siab tshaj plaws yuav tsum tsis pub tshaj 1.5 hli.
1.5.2.Cov yeeb nkab steel yuav tsum raug kuaj kom flattening
1.5.3.Qhov tseeb grain loj
Qhov loj npaum li cas ntawm cov yeeb nkab tiav yuav tsum tsis txhob tuab dua li qib 4, thiab qib sib txawv ntawm cov yeeb nkab steel ntawm tib cov cua sov yuav tsum tsis txhob siab tshaj qib 2. Cov grain loj yuav tsum tau soj ntsuam raws li ASTM E112.
2. Txiav thiab blanking
2.1.Ua ntej blanking ntawm alloy yeeb nkab fittings, cov ntaub ntawv raug xam yuav tsum tau ua ua ntej.Raws li lub zog suav cov txiaj ntsig ntawm cov yeeb nkab fittings, txheeb xyuas thiab xav txog kev cuam tshuam ntawm ntau yam xws li thinning thiab deformation ntawm cov yeeb nkab fittings nyob rau hauv cov txheej txheem ntau lawm ntawm cov khoom tseem ceeb ntawm cov yeeb nkab fittings (xws li lub puab arc ntawm lub luj tshib, lub thickness ntawm tee. lub xub pwg nyom, thiab lwm yam), thiab xaiv cov ntaub ntawv uas muaj nyiaj txaus, Thiab xav txog seb qhov kev ntxhov siab li cas coefficient tom qab cov yeeb nkab haum tsim ua raws li tus qauv kev ntxhov siab coefficient ntawm cov kav dej thiab qhov chaw ntws ntawm cov kav dej.Cov khoom siv radial them nyiaj thiab cov khoom siv lub xub pwg nyiaj thaum lub sij hawm nias yuav tsum raug xam rau cov kub nias tee.
2.2.Rau cov ntaub ntawv alloy yeeb nkab, gantry band saw txiav tshuab yog siv rau kev txiav txias.Rau lwm cov ntaub ntawv, nplaim taws txiav yog feem ntau zam, tab sis band saw txiav yog siv los tiv thaiv qhov tsis xws luag xws li hardening txheej los yog tawg los ntawm kev ua haujlwm tsis raug.
2.3.Raws li cov qauv tsim, thaum txiav thiab blanking, sab nraud txoj kab uas hla, phab ntsa thickness, cov khoom, cov yeeb nkab tooj, rauv batch naj npawb thiab cov yeeb nkab haum blank flow naj npawb ntawm raw cov ntaub ntawv yuav tsum tau cim thiab transplanted, thiab daim ntawv qhia yuav tsum tau nyob rau hauv daim ntawv ntawm cov khoom. low stress steel foob thiab pleev xim rau.Thiab sau cov ntsiab lus ua haujlwm ntawm cov txheej txheem ntau lawm flow card.
2.4.Tom qab blanking thawj daim, tus neeg teb xov tooj yuav tsum tau soj ntsuam tus kheej thiab qhia rau tus neeg soj ntsuam tshwj xeeb ntawm lub chaw kuaj xyuas tshwj xeeb.Tom qab dhau qhov kev tshuaj ntsuam xyuas, qhov khoob ntawm lwm daim yuav tsum tau ua, thiab txhua daim yuav tsum tau kuaj thiab sau tseg.
3. Kub nias (thov) molding
3.1.Cov txheej txheem kub nias ntawm cov yeeb nkab fittings (tshwj xeeb tshaj yog TEE) yog ib qho tseem ceeb ntawm cov txheej txheem, thiab qhov khoob tuaj yeem ua kom sov los ntawm cov roj cua kub cua sov.Ua ntej cua sov lub qhov khoob, ua ntej ntxuav lub nti lub kaum sab xis, roj, xeb, tooj liab, txhuas thiab lwm yam uas tsis tshua muaj melting point hlau rau ntawm qhov chaw ntawm lub raj dawb nrog cov cuab yeej xws li rauj thiab sib tsoo log.Tshawb xyuas seb daim ntawv qhia tsis pub leej twg paub raws li cov qauv tsim.
3.2.Ntxuav lub sundries nyob rau hauv lub qhov cub cua sov chav tsev, thiab xyuas seb lub cua sov rauv Circuit Court, roj Circuit Court, trolley thiab ntsuas kub qhov system yog zoo li qub thiab seb cov roj txaus.
3.3.Muab qhov khoob tso rau hauv lub qhov cub cua sov kom sov.Siv cov cib refractory cais cov khoom ua haujlwm los ntawm lub tshuab ua kom sov hauv qhov cub.nruj me ntsis tswj cov cua kub ceev ntawm 150 ℃ / teev raws li cov khoom sib txawv.Thaum cua sov mus rau 30-50 ℃ saum AC3, lub rwb thaiv tsev yuav tsum ntau tshaj 1 teev.Nyob rau hauv cov txheej txheem ntawm cov cua sov thiab kev txuag hluav taws xob, cov zaub digital lossis infrared ntsuas kub yuav tsum tau siv los saib xyuas thiab kho txhua lub sijhawm.
3.4.Thaum lub qhov khoob yog rhuab mus rau qhov ntsuas kub, nws tawm ntawm lub cub tawg rau nias.Kev nias tiav nrog 2500 tuj xovxwm thiab yeeb nkab haum tuag.Thaum nias, qhov kub ntawm lub workpiece thaum nias yog ntsuas nrog lub ntsuas kub infrared, thiab qhov kub tsis tshaj 850 ℃.Thaum lub workpiece tsis tuaj yeem ua tau raws li qhov yuav tsum tau ua ntawm ib zaug thiab qhov kub thiab txias tsis dhau, lub workpiece raug xa rov qab mus rau lub qhov cub kom rov ua kom sov thiab txuag hluav taws xob ua ntej nias.
3.5.Qhov kub sib sau ntawm cov khoom tiav txiav txim siab txog txoj cai ntawm cov hlau ntws ntawm cov thermoplastic deformation nyob rau hauv cov txheej txheem ntawm cov khoom tiav.Cov pwm tsim sim txo qhov deformation kuj tshwm sim los ntawm kev ua haujlwm kub ntawm cov khoom ua haujlwm, thiab cov nias lub log pwm yog qhov zoo.Cov log tsheb pwm raug txheeb xyuas tsis tu ncua raws li qhov yuav tsum tau ua ntawm ISO9000 kev ruaj ntseg zoo, txhawm rau tswj cov nyiaj thermoplastic deformation ntawm cov khoom, kom cov phab ntsa tuab ntawm ib qho taw tes ntawm cov yeeb nkab haum yog ntau dua li qhov tsawg kawg nkaus phab ntsa thickness. cov yeeb nkab txuas ncaj nraim.
3.6.Rau lub luj tshib loj, nruab nrab zaus cua sov laub molding yog saws, thiab tw1600 ntxiv loj luj tshib laub tshuab raug xaiv raws li cov khoom siv thawb.Nyob rau hauv cov txheej txheem thawb, cua kub ntawm lub workpiece yog kho los ntawm kev kho lub zog ntawm nruab nrab zaus fais fab mov.Feem ntau, kev thawb yog tswj ntawm 950-1020 ℃, thiab kev thawb ceev yog tswj ntawm 30-100 mm / min.
4. Kev kho cua sov
4.1.Rau cov yeeb nkab fittings tiav, peb lub tuam txhab ua cov kev kho cua sov kom nruj raws li cov txheej txheem kev kho cua sov uas tau teev tseg hauv cov qauv sib xws.Feem ntau, kev kho cua sov ntawm cov yeeb nkab me me tuaj yeem ua tau nyob rau hauv qhov hluav taws xob tiv thaiv, thiab kev kho cua sov ntawm cov yeeb nkab loj lossis lub luj tshib tuaj yeem nqa tawm hauv cov roj hluav taws xob kho cua sov.
4.2.Lub cub tawg ntawm lub qhov cub kho cua sov yuav tsum huv thiab tsis muaj roj, tshauv, xeb thiab lwm yam hlau sib txawv ntawm cov khoom siv kho mob.
4.3.Thaum tshav kub kub kev kho mob yuav tsum tau ua raws li nruj raws li qhov kev kho cua sov nkhaus uas yuav tsum tau los ntawm "kub txheej txheem kev kho mob daim card", thiab kub nce thiab poob ceev ntawm alloy steel yeeb nkab qhov chaw yuav tsum tau tswj kom tsawg tshaj li 200 ℃ / teev.
4.4.Lub kaw lus tsis siv neeg sau qhov nce thiab poob ntawm qhov kub thiab txias txhua lub sijhawm, thiab tuaj yeem kho qhov kub thiab tuav lub sijhawm nyob rau hauv qhov cub raws li qhov ntsuas tau ua ntej.Thaum cov txheej txheem cua sov ntawm cov yeeb nkab fittings, cov nplaim hluav taws yuav tsum tau thaiv nrog cov hluav taws kub tuav kom tiv thaiv cov nplaim hluav taws los ntawm kev txau ncaj qha mus rau saum npoo ntawm cov yeeb nkab fittings, thiaj li yuav xyuas kom meej tias cov yeeb nkab fittings yuav tsis overheated thiab hlawv thaum kho cua sov.
4.5.Tom qab kev kho cua sov, kev kuaj xyuas metallographic yuav tsum tau ua rau cov yeeb nkab fittings ib qho los ntawm ib qho.Qhov loj npaum li cas ntawm cov nplej yuav tsum tsis txhob tuab dua qib 4, thiab qib sib txawv ntawm cov yeeb nkab fittings ntawm tib cov cua sov yuav tsum tsis pub tshaj qib 2.
4.6.Ua ib qho kev sim hardness ntawm cov cua sov kho yeeb nkab fittings kom paub tseeb tias qhov hardness tus nqi ntawm ib feem ntawm cov yeeb nkab fittings tsis tshaj qhov ntau yuav tsum tau los ntawm tus qauv.
4.7.Tom qab kev kho cua sov ntawm cov yeeb nkab fittings, cov oxide nplai ntawm sab hauv thiab sab nrauv yuav tsum raug tshem tawm los ntawm cov xuab zeb blasting kom txog rau thaum cov hlau nplaum ntawm cov khoom pom.Cov khawb, qhov thiab lwm yam tsis xws luag ntawm cov khoom saum npoo yuav tsum polished du nrog cov cuab yeej xws li kev sib tsoo log.Lub zos thickness ntawm polished yeeb nkab fittings yuav tsum tsis txhob tsawg tshaj li qhov tsawg kawg nkaus phab ntsa thickness yuav tsum tau los ntawm tus tsim.
4.8.Sau cov ntaub ntawv kho cua sov raws li tus naj npawb ntawm cov yeeb nkab haum thiab kev txheeb xyuas, thiab rov sau cov ntaub ntawv tsis tiav rau ntawm qhov chaw ntawm cov yeeb nkab haum thiab daim npav ntws.
5. Groove ua
5.1.Lub groove ua cov yeeb nkab fittings yog ua los ntawm mechanical txiav.Peb lub tuam txhab muaj ntau tshaj li 20 txheej ntawm machining cov cuab yeej xws li ntau yam lathes thiab lub hwj chim taub hau, uas muaj peev xwm ua tau ob npaug V-zoo li tus los yog U-shaped zawj, puab zawj thiab txheej groove ntawm ntau yam tuab phab ntsa yeeb nkab fittings raws li qhov yuav tsum tau ntawm peb cov neeg muas zaub. .Lub tuam txhab tuaj yeem ua raws li qhov zawj kos duab thiab cov kev xav tau los ntawm peb cov neeg siv khoom kom ntseeg tau tias cov yeeb nkab fittings yooj yim rau kev khiav lag luam thiab vuam hauv cov txheej txheem vuam.
5.2.Tom qab cov yeeb nkab fitting groove tiav lawm, tus neeg soj ntsuam yuav tsum tau soj ntsuam thiab lees txais tag nrho qhov ntev ntawm cov yeeb nkab haum raws li qhov yuav tsum tau kos duab, thiab rov ua dua cov khoom uas tsis tsim nyog geometric qhov ntev kom txog thaum cov khoom ua tau raws li qhov tsim qhov ntev.
6. Kev xeem
6.1.Cov yeeb nkab fittings yuav tsum raug kuaj raws li tus qauv yuav tsum tau ua ua ntej tawm hauv lub hoobkas.Raws li ASME B31.1.Txhua qhov kev xeem yuav tsum ua kom tiav los ntawm cov kws tshuaj ntsuam xyuas nrog cov txuj ci sib xws uas tau lees paub los ntawm Lub Xeev Lub Chaw Haujlwm Saib Xyuas Kev Tshawb Fawb.
6.2.Sib nqus particle (MT) kev ntsuam xyuas yuav tsum tau ua nyob rau sab nrauv ntawm tee, luj tshib thiab reducer, ultrasonic thickness ntsuas thiab qhov tsis pom kev yuav tsum tau ua nyob rau sab nraud arc sab ntawm lub luj tshib, tee xub pwg thiab reducer txo ib feem, thiab radiographic flaw detection. los yog ultrasonic flaw detection yuav tsum tau nqa tawm nyob rau hauv lub vuam ntawm welded yeeb nkab fittings.Lub forged tee lossis lub luj tshib yuav tsum raug kuaj ultrasonic ntawm qhov khoob ua ntej machining.
6.3.Magnetic particle flaw detection yuav tsum tau ua nyob rau hauv 100mm ntawm qhov zawj ntawm tag nrho cov yeeb nkab fittings kom paub tseeb tias tsis muaj kab nrib pleb thiab lwm yam tsis xws luag los ntawm kev txiav.
6.4.Qhov zoo ntawm qhov chaw: sab hauv thiab sab nraud ntawm cov yeeb nkab fittings yuav tsum tsis muaj kab nrib pleb, shrinkage kab noj hniav, tshauv, xuab zeb sticking, folding, tsis muaj vuam, ob daim tawv nqaij thiab lwm yam tsis xws luag.Qhov saum npoo yuav tsum du yam tsis muaj khawb.Qhov tob ntawm kev nyuaj siab yuav tsum tsis pub tshaj 1.5 hli.Qhov siab tshaj plaws ntawm qhov kev nyuaj siab yuav tsum tsis txhob ntau tshaj 5% ntawm qhov ncig ntawm cov yeeb nkab thiab tsis ntau tshaj 40mm.Weld nto yuav tsum tsis muaj kab nrib pleb, pores, craters thiab splashes, thiab yuav tsum tsis muaj undercut.Lub kaum sab hauv ntawm lub tee yuav tsum yog kev hloov pauv.Tag nrho cov yeeb nkab fittings yuav tsum raug 100% kev soj ntsuam zoo li qub.Cov kab nrib pleb, cov kaum ntse ntse, qhov pits thiab lwm yam tsis xws luag ntawm cov yeeb nkab fittings yuav tsum polished nrog ib tug grinder, thiab sib nqus particle flaw detection yuav tsum tau nqa tawm ntawm qhov chaw sib tsoo kom txog rau thaum cov defects raug tshem tawm.Lub thickness ntawm cov yeeb nkab fittings tom qab polishing yuav tsum tsis txhob tsawg tshaj li qhov tsawg kawg nkaus tsim thickness.
6.5.Cov kev ntsuam xyuas hauv qab no kuj yuav tsum tau ua rau cov yeeb nkab fittings nrog cov kev cai tshwj xeeb ntawm cov neeg siv khoom:
6.5.1.Hydrostatic xeem
Tag nrho cov yeeb nkab fittings tuaj yeem raug kuaj hydrostatic nrog lub kaw lus (qhov ntsuas hydrostatic siab yog 1.5 npaug ntawm qhov tsim siab, thiab lub sijhawm yuav tsum tsis pub tsawg dua 10 feeb).Nyob rau hauv cov xwm txheej uas cov ntaub ntawv pov thawj zoo ua tiav, ex-factory yeeb nkab fittings yuav tsis raug kuaj hydrostatic.
6.5.2 ib.Qhov tseeb grain loj
Qhov loj npaum li cas ntawm cov yeeb nkab ua tiav yuav tsum tsis txhob tuab dua qib 4, thiab qib sib txawv ntawm cov yeeb nkab fittings ntawm tib cov cua sov yuav tsum tsis txhob siab tshaj qib 2. Kev soj ntsuam ntawm cov nplej loj yuav tsum tau ua raws li txoj kev teev tseg hauv Yb / t5148-93 (los yog ASTM E112), thiab lub sijhawm tshuaj xyuas yuav tsum yog ib zaug rau txhua tus lej kub + txhua qhov kev kho cua sov.
6.5.3 ib.Microstructure:
Cov chaw tsim khoom yuav tsum ua cov kev tshuaj xyuas microstructure thiab muab cov duab microstructure raws li cov kev cai ntawm GB / t13298-91 (los yog cov qauv thoob ntiaj teb), thiab lub sijhawm tshuaj xyuas yuav tsum yog ib tus lej kub + qhov loj (inch × Phab ntsa thickness) + kev kho cua sov batch ib zaug.
7. Ntim thiab kev txheeb xyuas
Tom qab cov yeeb nkab fittings tiav lawm, cov phab ntsa sab nrauv yuav tsum tau coated nrog antirust xim (tsawg kawg yog ib txheej ntawm primer thiab ib txheej ntawm cov xim tiav).Cov xim tiav ntawm cov pa roj carbon steel yuav tsum yog grey thiab cov xim tiav ntawm cov hlau yuav tsum yog xim liab.Cov xim yuav tsum zoo ib yam tsis muaj npuas, wrinkles thiab tev.Qhov zawj yuav tsum tau kho nrog tus neeg saib xyuas tshwj xeeb.
Cov yeeb nkab me me los yog cov yeeb nkab tseem ceeb tau ntim rau hauv cov rooj plaub ntoo, thiab cov yeeb nkab loj fittings feem ntau liab qab.Lub nozzles ntawm tag nrho cov yeeb nkab fittings yuav tsum tau ruaj khov nrog roj hmab (yas) rings los tiv thaiv cov yeeb nkab fittings los ntawm kev puas tsuaj.Xyuas kom meej tias cov khoom xa tuaj zaum kawg yog pub dawb los ntawm qhov tsis xws luag xws li tawg, khawb, rub cov cim, ob daim tawv nqaij, xuab zeb nplaum, interlayer, slag suav nrog thiab lwm yam.
Lub siab, kub, khoom, txoj kab uas hla thiab lwm yam yeeb nkab haum specifications ntawm cov yeeb nkab fittings yuav tsum tau cim nyob rau hauv pom tseeb ib feem ntawm cov yeeb nkab haum cov khoom.Lub foob hlau txais yuav tsis tshua muaj kev ntxhov siab steel foob.
8. Xa khoom
Hom kev thauj mus los tsim nyog yuav tsum raug xaiv rau kev xa cov yeeb nkab fittings raws li qhov xav tau ntawm qhov xwm txheej tiag tiag.Feem ntau, cov yeeb nkab fittings hauv tsev yog thauj los ntawm tsheb.Nyob rau hauv cov txheej txheem ntawm kev thauj mus los hauv tsheb, nws yuav tsum tau ua kom ruaj khov kho cov yeeb nkab fittings nrog lub tsheb lub cev nrog lub zog siab-lub zog mos ntim daim kab xev.Thaum lub sij hawm tsav tsheb, nws tsis raug tso cai rau kev sib tsoo thiab rub nrog lwm cov yeeb nkab fittings, thiab coj los ntsuas nag thiab noo noo.
HEBEI CANGRUN PIPELINE EQUIPMENT CO., LTD yog cov chaw tsim khoom ntawm cov yeeb nkab fittings, flanges thiab li qub.Peb lub tuam txhab muaj ib pab neeg ua haujlwm engineering thiab kev pabcuam nrog kev ua haujlwm zoo tshaj plaws, kev tshaj lij thev naus laus zis, kev paub txog kev pabcuam zoo thiab cov lus teb ceev thiab yooj yim rau cov neeg siv thoob plaws ntiaj teb.Peb lub tuam txhab cog lus tias yuav tsim, npaj kev yuav khoom, tsim khoom, tshuaj xyuas thiab kuaj, ntim khoom, kev thauj mus los thiab kev pabcuam raws li cov kev xav tau ntawm ISO9001 kev tswj xyuas zoo thiab kev ruaj ntseg zoo.Muaj ib lo lus qub nyob rau Suav teb: Zoo siab heev uas muaj phooj ywg tuaj nyob deb.
Zoo siab txais tos peb cov phooj ywg tuaj xyuas lub Hoobkas.
Post lub sij hawm: May-06-2022