1.Lub vuam pas nrig yuav tsum tau qhuav thaum siv. Hom calcium titanate yuav tsum tau qhuav ntawm 150′C rau 1 teev, thiab cov low-a hydrogen type yuav tsum tau qhuav ntawm 200-250 ℃ rau 1 teev (lub ziab yuav tsum tsis txhob rov qab ntau zaus, txwv tsis pub cov tawv nqaij yog yooj yim. tawg thiab tev tawm) los tiv thaiv cov vuam pas nrig ntawm daim tawv nqaij, cov roj nplaum thiab lwm yam av, kom tsis txhob nce cov ntsiab lus carbon ntawm cov vuam thiab cuam tshuam qhov zoo ntawm cov vuam.
2.Thaum vuam ntawmstainless hlau flangecov yeeb nkab fittings, carbides yog precipitated los ntawm rov qab cua sov, uas txo corrosion thiab mechanical zog.
3.The hardened American standard flange ntawm chrome stainless hlau flange yeeb nkab fittings tom qab vuam yog loj thiab yooj yim rau tawg. Yog hais tias tib hom chromium stainless hlau electrode (G202, G207) yog siv rau vuam, preheating saum 300 ℃ thiab qeeb cua txias kho nyob ib ncig ntawm 700 ℃ tom qab vuam yuav tsum tau. Yog tias qhov vuam tsis tuaj yeem raug kho tom qab vuam vuam, stainless hlau flange yeeb nkab electrode (A107, A207) yuav tsum raug xaiv.
4.Rau stainless hlau flange, tsim nyog tus nqi ntawm cov khoom ruaj khov xws li Ti, Nb thiab Mo yog ntxiv los txhim kho corrosion kuj thiab weldability. Lub weldability yog zoo dua li ntawm chrome stainless hlau flange. Thaum tib hom chrome stainless hlau flange vuam pas nrig (G302, G307) yog siv, preheating saum 200 ℃ thiab tempering nyob ib ncig ntawm 800 ℃ tom qab vuam yuav tsum tau nqa tawm. Yog tias qhov vuam tsis tuaj yeem kho cua sov, stainless hlau flange yeeb nkab electrode (A107, A207) yuav tsum raug xaiv.
5.Stainless hlau flange Cov yeeb nkab fittings thiab pob tw-welding flange vuam rods muaj corrosion kuj zoo thiab tshuaj tiv thaiv, thiab yog dav siv nyob rau hauv tshuaj, chiv, roj av thiab machinery manufacturing.
6. Txhawm rau tiv thaiv qhov muag-rau-qhov muag corrosion tshwm sim los ntawm cov cua sov ntawm lub flange npog, qhov vuam tam sim no yuav tsum tsis txhob loj dhau, li ntawm 20% tsawg dua li cov pa roj carbon steel electrode, lub arc yuav tsum tsis txhob ntev dhau, thiab inter-txheej txheej txias yuav tsum tsis txhob qeeb, thiab nqaim weld hlaws yuav tsum nyiam.
Cov pa roj carbon steel flange yog siv rau hauv txoj kev tshwj xeeb, yog li nws yuav tsum tau du, tensile, compressive, torsional thiab lwm yam khoom ntawm cov khoom. Nws tuaj yeem siv nyob rau hauv kev kub siab yam tsis muaj distortion. Vim tias cov pa roj carbon steel muaj ob peb burrs, nws qhov kev sib txhuam quab yuam kuj me me, thiab nws tuaj yeem siv ntau dua hauv cov khoom siv.
Tsis tas li ntawd, carbon steel flanges yuav tsum tau tsim nyob rau hauv nruj raws li Tuam Tshoj txoj kev lag luam cov qauv. Tsis txhob siv cov khoom tsis tsim nyog los ua rau lawv. Qhov ntau koj tsis tuaj yeem txiav cov ces kaum ntawm qhov loj, cov kev siv tau zoo no yuav ua rau cov khoom lag luam tsis zoo thiab tsis tsim nyog, uas yuav ua rau tag nrho Fabkis txoj kev ua tsis tiav, txawm tias ua rau kev lag luam poob ntawm cov cuab yeej thiab cov neeg raug tsim txom thiab lwm yam xwm txheej ruaj khov.
Txhua tus neeg uas tau hnov txog carbon steel flange paub tias nws cov khoom siv casting yog qhov nyuaj heev. Nyob rau hauv cov nqe lus ntawm nws cov khoom, carbon steel kuj txawv ntawm lwm yam steels, thiab nws cov kev ua tau zoo yog zoo dua li cov hlau. Yog li qhov zoo flange feem ntau yog ua los ntawm carbon steel, uas yog, hu ua carbon steel flange. Ntxiv nrog rau carbon, carbon hlau feem ntau muaj me me ntawm silicon, manganese, sulfur, phosphorus thiab lwm yam khoom, yog li nws muaj nws cov khoom tshwj xeeb.
Txoj kev ntsuas ntawm carbon steel flange thiab kev npaj ua ntej kev ntsuas yuav qhia luv luv los ntawm tus editor.
1. Thaum lub sij hawm ntsuas, peb tus neeg yuav tsum tau teem caij, ob tug ntawm lawv yog ntsuas, ib tug yog kuaj thiab sau rau hauv daim ntawv. Yog tias tsis muaj qhov xwm txheej siv cov caliper sab nraud thiab cov kav hlau, lub caliper tuaj yeem siv los ua cov cuab yeej ntsuas. Kev ntsuas yog ib qho kev ua haujlwm zoo thiab yog qhov yuav tsum tau ua ua ntej rau kev teeb tsa fixture. Kev ntsuas thiab cov ntaub ntawv yuav tsum tau npaj kom raug, thiab daim ntawv yuav tsum tau ua kom zoo thiab meej. Hauv kev ntsuas qhov tseeb. Kev koom tes nrog ib leeg, peb yuav tsum muaj peev xwm koom tes thiab siv tau raws li cov ntsiab lus raug.
2.Raws li txoj haujlwm ntawm flange loj ua ntej kev ntsuas, daim duab sib txuas thiab tus naj npawb ntawm cov flange loj ntawm cov khoom siv yuav tsum tau kos thaum xub thawj, kom lub fixture tuaj yeem ntsia tau raws li cov txheej txheem thiab cov qauv, thiab kev siv ib txwm muaj. tuaj yeem txiav txim siab.
3.Vim tias sab nraud ntawm cov pa roj carbon steel flange yuav txawv, qhov tsis ncaj ncees lawm (qhov chaw sib txawv) thiab lub thickness ntawm lub gasket yog txawv, cov txheej txheem fixture yuav tsum tsis txhob hloov nrog sab carbon steel flange, yog li ntsuas qhov loj thiab kom muaj nuj nqis ntawm txhua qhov yog qhov tseem ceeb. Ixtere ua thiab installation.
Cov pa roj carbon steel flangesyog dav siv nyob rau hauv daim ntawv thov niaj hnub, thiab kev noj tsis qeeb. Yog li ntawd, kev saib xyuas tsis tu ncua ntawm cov pa roj carbon steel flanges yuav tsum muaj cov kev cai sib xws los tswj cov pa roj carbon steel flanges kom ntau li ntau tau thiab txhim kho kev ua haujlwm ceev. Ntawm no peb qhia koj txog kev ua haujlwm ruaj khov ntawm cov hlau tsis muaj steel thiab carbon steel flanges thiab yuav tsum tau ua dab tsi tu:
1.Thaum cov pa roj carbon steel flange raug kaw, tseem muaj qee qhov nruab nrab sab laug nyob rau hauv lub valve lub cev, thiab nws kuj bears lub siab teev. Ua ntej overhauling cov pa roj carbon steel flange, kaw lub kaw-off valve nyob rau hauv pem hauv ntej ntawm carbon steel flange, qhib cov pa roj carbon steel flange yuav tsum tau overhauled, thiab kiag li tso lub sab hauv siab ntawm lub valve lub cev. Nyob rau hauv cov ntaub ntawv ntawm hluav taws xob carbon steel flange los yog pneumatic pob valve, lub hwj chim thiab cua yuav tsum tau txiav thaum xub thawj.
2. Feem ntau, cov mos sealing carbon steel flange siv tetrafluoroethylene (PTFE) raws li cov khoom sib khi, thiab lub sealing nto ntawm lub zog sealing pob valve yog ua los ntawm cov hlau surfacing. Yog tias tsim nyog los ntxuav cov yeeb nkab pob valve, yuav tsum tau saib xyuas kom tsis txhob muaj cov pa tawm vim kev puas tsuaj rau lub nplhaib sealing thaum lub sij hawm disassembly.
3.Thaum disassembling cov carbon steel flange, lub bolts thiab ceev ntawm lub flange yuav tsum tau kho ua ntej, thiab ces tag nrho cov ceev yuav tsum tau nruj me ntsis thiab ruaj khov. Yog tias cov txiv ntoo ib tus neeg raug kho kom zoo ua ntej lwm cov txiv ntoo raug kho, lub gasket nto yuav puas los yog tawg vim qhov tsis sib xws ntawm lub ntsej muag flange, uas ua rau muaj qhov nruab nrab ntawm lub valve flange pob tw.
4.Yog tias lub valve raug ntxuav, cov kuab tshuaj siv yuav tsum tsis txhob cuam tshuam nrog cov khoom yuav tsum tau ntxuav thiab yuav tsis corrode. Yog tias nws yog carbon steel flange rau roj, nws tuaj yeem ntxuav nrog roj av. Lwm qhov chaw tuaj yeem ntxuav nrog dej rov qab. Thaum lub sij hawm ntxuav, cov plua plav seem, roj thiab lwm yam txuas yuav tsum tau muab ntxuav kom huv. Yog tias lawv tsis tuaj yeem ntxuav nrog dej huv, lawv tuaj yeem ntxuav nrog cawv thiab lwm yam tshuaj ntxuav tes yam tsis muaj kev puas tsuaj rau lub cev thiab qhov chaw. Tom qab ntxuav, tos tus neeg saib xyuas kom volatilize ua ntej sib dhos.
5.Yog tias pom cov pa me me ntawm cov ntim khoom thaum siv, lub valve qws txiv ntoo tuaj yeem raug nruj me ntsis kom txog thaum cov dej ntws tawm. Tsis txhob nroo ntxiv.
6.Ua ntej siv, lub raj xa dej thiab cov dej ntws tawm ntawm lub cev valve yuav tsum tau muab ntxuav nrog dej kom tsis txhob muaj cov hlau seem thiab lwm yam khoom siv los ntawm kev nkag mus rau sab hauv lub cev ntawm lub valve.
Tsis tas li ntawd, yog tias cov pa roj carbon steel flange muab tso rau sab nraum zoov ntev, thiab tsis muaj kev ntsuas kom ntshai dej, nws yuav ua rau corrosion ntawm qee lub valve lub cev thiab cov khoom siv. Nyob rau hauv txoj kev no, nws yog ib qho tsim nyog los ntsuas qhov ruaj khov ntawm carbon steel flange thaum siv.
Post lub sij hawm: Feb-07-2023
