Vuam pipelines: Technology

Equipping ib lub tsev los yog ua kho vaj tse nyob rau hauv lub tsev, koj muaj peev xwm nteg lub raj dej system koj tus kheej. Thaum nws los txog rau steel kev sib txuas lus, koj siv tau cov hluav taws xob welding. Raws li ib tug tshwm sim, yuav ua tau kom tau ib tug khoom compound uas yog tau vim cov ndlwg ntawm thermochemical dab, nyob rau lub electrodes yog siv-conductors.

Txawm Vuam ua hauj lwm, lawv yuav tsum tau tus tswv ntawm kev paub thiab kev txawj ntse, uas yog siv nyob rau hauv tus txheej txheem. Yog hais tias koj tsuas yog peb yuav kawm, nws yog tau pib mus ntsib nrog tus theoretical sab ntawm cov nqe lus nug. Raws li rau lub hlau, rau polypropylene yeeb nkab kuj yuav tsum tau coj cov khoom rau welding. Txawm li cas los, xyaum qhia tau hais tias qhov tseeb technology yog yooj yim npaum li ib tug uas yuav tau los sib tham nyob rau hauv tsab xov xwm.

Npaj mus ua hauj lwm

Vuam pipeline pib nrog nto npaj. Nws yog ib qho tseem ceeb kom paub tseeb tias nws yog qhuav thiab du. Nyob rau hauv lub kauj ruam tom ntej koj yuav tau xaiv lub hwj chim qhov twg los. Los ntawm no nws yog nyob ntawm qhov zoo ntawm kev qhia ntawv. Tej zaum nws yuav compact inverters los yog hnyav transformers. Nrog lawv pab, lub siab voltage yuav hloov dua siab tshiab rau hauv ib tug tsawg dua theem nrab Circuit Court.

Ua homework, tus nyiam kev xaiv yuav tsum Vuam. Lub lag luam ntawm lub transformer yog ntau yooj yim. Nws muaj qhov zoo qhia nyob rau hauv lub cia siab rau ntawm lub lag luam thiab endurance. Lub inverter khoom muaj ib tug tsawg impressive loj kuj tso cai ntau yam kev kho me ntsis.

Hom welds

Thaum Vuam yeeb nkab tshuab cov nram qab no ntawm tebchaw yuav siv niaj hnub no:

• taub qab;
• sib tshooj;
• ces kaum kev twb kev txuas;
• T-ob leeg.

Thaum zoo li no weld txoj hauj lwm tej zaum yuav ntsug los yog kab rov tav li zoo raws li ib tug qab nthab los yog hauv qab. Qhov tseem ib qho kev zoo txoj hauj lwm yog xav tau tsawg dua, yog li ntawd qhov tseem rov Vuam nws yog tsim nyog los muab kev xaiv li cas rau cov qauv no. Vuam kav ntawm tso kev sib txuas lus feem ntau yuav siv cov lub taub qab ob leeg. Lub npoo nyob rau tib lub sij hawm nws yog ib qho tseem ceeb mus rau tag nrho thickness. Rau tuab-walled kav khiav ob nqaws - sab nraud thiab sab hauv. Yuav kom txo tau cov sagging ntawm cov hlau los ntawm lub sab hauv thaum ua hauj lwm electrode yuav tsum tau muaj nyob rau ntawm ib kaum sab xis ntawm 45 ° rau cov kab rov tav dav hlau.

Yuav ua li cas lwm tus neeg yog ib qho tseem ceeb rau koj nco ntsoov thaum npaj

Ua ntej qhov pib ntawm phau ntawv vuam yog tsim nyog los nqa tawm kev kawm. Nws yog ib qho tseem ceeb kom paub tseeb tias cov uas yuav tsum tau ntawm cov kav dej. Cov khoom yuav tsum haum, lawv yuav tsum tsis txhob yuav deformed, lawv yuav tsum pub dawb los ntawm tsis xws luag. Nws yog tsim nyog los xyuas kom meej tias tsis muaj sib txawv nyob rau hauv cov phab ntsa thickness.

Khoom hlab yuav tsum sib haum nyob rau hauv cov tshuaj muaj pes tsawg leeg. Lub npoo yuav tsum tau free ntawm av thiab xeb. Qhov kawg lub ntsej muag yog ntsuas raws li cov ntug kaum sab xis ntawm lub qhia tawm, raws li tau zoo raws li blunting nqi. Raws li cov qauv, blunted nqi tej zaum yuav sib npaug zos rau cov kev txwv ntawm 2 mus rau 2.5 hli. Nrog hais txog lub kaum sab xis ntawm bevel, tej zaum nws yuav 70 °. Yog hais tias lub pom tias tsis raws kev cai, nws yog tsim nyog los nqa tawm machining ntawm lub npoo.

txhim kho tack

Vuam txheej txheem pipelines yuav tsum xav tias installation tack. Lawv yog ib tug tivthaiv ib feem ntawm lub sib koom tes, thiab ua ib tug electrode yuav tsum tau ua ntawv thov thaum lub suture. Yog hais tias nws yog ib cov yeeb nkab uas nws txoj kab uas hla tsis pub tshaj 300 hli, cov ua tack 4, lawv yuav tsum tau tusyees kis tshaj lub siab tshaj plaws ib ncig.

Thaum ua hauj lwm nrog ib tug yeeb nkab inch ntawm ntau impressive, lub tack cov txheej txheem nrog ib tug suab ntawm 250 hli. Pom zoo tack ntev yog 50 hli, thaum nws dav yog 4 hli.

nta Electric

Vuam kav yuav tsum tau nqa tawm nyob rau hauv ib tug tej yam algorithm. Nws yog ib qho tseem ceeb rau them tshwj xeeb mloog mus teb cov pob qij txha. Yog hais tias koj yuav tsum noj nyob rau hauv yooj yim tej yam kev mob, koj yuav tsum rau tes ib tug me me daim iav. Yog hais tias tsim nyog, qhov kawg ntawm lub electrode muaj khoov los ntawm kev ua hauj lwm ntawm ib tug lawm ib feem.

Ib tug ntau teeb meem no yog welded ntawm lub kaum sab xis ntawm 30 ° mus rau qhov chaw ntawm cov khoom. weld overlay yog ces nqa tawm circumferentially. Nws yuav ua tau ib txheej ntawm cov pob qij txha ntawm tsawg-hlau steel khoom. Ntxiv zog yuav ua tau tiav los ntawm kev ua ib tug thib ob leeg. Qhov ntau impressive yuav yeeb nkab phab ntsa, qhov ntau dhau yuav tsum tau ua, lawv yuav tsum tau 2 los yog ntau dua.

Los ntawm ua noj ua haus ntau yam yuav tsum loj inch kav. Lawv twb kev txuas yog ua mus rau ib nrab leeg. Tom qab ntawd, feem tshem los ntawm slag thiab yog them los ntawm cov hauv qab no leeg ntawm ib tug deb ntawm 1.5 cm los ntawm lub yav dhau los yog ib tug. Tiav qhov tsim nyog kev sib txuas broth nrog me ntsis sib tshooj. ntau yog tsis pom zoo tsis muaj qhov kev tshem tawm ntawm slag lag luam, raws li mus cuag ib tug zoo tshwm sim yog tsis tau.

zoo check

Nqa tawm lub vuam ntawm pipelines, nyob rau theem kawg, koj yuav tsum ua kom paub tseeb tias qhov zoo tshaj ntawm lub nqaws muab tawm zoo meej. Invisible keej yuav raug kuaj nrog ib tug xab npum tshuaj, uas yog thov nrog ib tug txhuam nyob rau hauv welded pob qij txha. Tom qab lub cua yog noj mus rau hauv lub system. Yog hais tias muaj tau siav pob qij txha los yog qhov chaw, lawv koj yuav saib tau los ntawm cov npuas.

Teb vuam txoj kev

Vuam txheej txheem pipelines feem ntau yuav tsum tau lub siab tshaj plaws pes tsawg tus ntawm stitches, tsim nyob rau hauv lub qis txoj hauj lwm. Qhov no qhia tau hais tias nws yog tau siv ib tug teb txoj kev. Yog hais tias cov yeeb nkab muaj ib lub phab ntsa thickness mus txog 12 hli, nws yog tau mus ua ib tug triple leeg. Tus thawj txheej yog welded mus rau lub electrode, lub thickness ntawm cov uas pas nrig mas nws txawv ntawm 2 mus rau 4 hli. Tag nrho cov tom ntej khaubncaws sab nraud povtseg yuav welded ntau impressive txoj kab uas hla electrodes.

Chiv, ob leeg yuav tsum tau muab faib ua 4 qhov chaw. Vuam yog ua nyob rau hauv thawj thiab thib ob sectors muaj nyob rau hauv ib lub feem ntawm lub raj. Lub raj no ces tig, thiab tus tswv yuav ua rau ob leeg peb thiab thib plaub sectors. Tube nyob rau hauv lub kauj ruam tom ntej yuav tsum tau tig rov thiab boil rau 1 thiab 2 sectors. Thaum rov qab ua dua kev sib hloov ntawm lub thib ob txheej yog thov nyob rau hauv sectors 3 thiab 4. Qhov kawg txheej uas yuav raug pov rau hauv ib cov kev taw qhia, cov yeeb nkab yuav tsum tau tig rau tag nrho cov sij hawm.

tsis siv neeg vuam

Lub vuam ntawm lub raj dej yuav nqa tawm nyob rau hauv loj scale lawm, qhov twg siab productivity. Nyob rau hauv xws tej yam kev mob, los ntawm txhais tes vuam yuav muaj sij hawm-siv, ces tus vuam tshuab yog siv rau cov chaw ua hauj lwm. Tag nrho cov dab nyob rau tib lub sij hawm yuav siv qhov chaw cia.

Vuam yog nqa tawm ntawm lub vuam hlau, uas yog unwound los ntawm cov kauj thiab pub mus rau hauv lub chaw ua hauj lwm cheeb tsam. Cov ua hauj lwm hauv cheeb tsam tau txais kev pab ntau thiab shielding gases rau hauv ib lub hom. Yog hais tias lub chaw ua hauj lwm muaj peev xwm tsis tsum cia, semi-automatic vuam siv.

Lwm txoj kev vuam

Vuam thiab piping installation yuav nqa tawm los ntawm txoj kev gas welding. Qhov no txoj kev yuav ua cua sov rau hauv lub npoo mus rau lub melting kub. Ib txhij, vuam pas nrig yog melted, raws li zoo li lub hlau siv rau sau tus leeg. Raws li ib tug tshwm sim, yuav ua tau kom tau ib tug txaus muaj zog leeg uas yuav muaj ib tug protruding cov menyuam.

gas vuam yog nqa tawm siv ib tug sib tov ntawm cov pa thiab acetylene. Lub ntsiab seev protrude burner thiab cutter. Tus thawj lub cev muaj ob tug raws los ntawm kev uas cov pa roj yog pauv mus rau lub nws chamber. Master li regulates lub khiav ntawm roj thaum Vuam ntaub ntawv sib txawv.

Vuam steel kav kuj muab los siv los ntawm ib tug induction txoj kev. Qhov no technology yuav cov cua kub hais txog qhov eddy currents. Lub npoo yog koom xovxwm chais. Qhov no hom ntawm vuam yog siv nyob rau hauv kev lag luam thiab mechanical engineering.

Pom zoo txog cov kev xaiv ntawm cov electrodes

Thaum Vuam kav GOST 16037-80 yuav tsum muaj cai. Lawv sau npe thiab ntau tshwj xeeb cov kev xaiv ntawm electrodes. Cov yav tas yog hlau rods no yog ua los ntawm cov hlau. Nws thickness yuav sib txawv ntawm 2 mus rau 5 hli. Lub nto yog them los ntawm daubing, uas yog thov kom muaj ib tug tuab los yog nyias txheej. Nyob rau hauv lub caij nyoog kawg no cov ntaub ntawv ntawm txheej loj yog hom twg los ntawm 1 mus rau 2% los ntawm luj ntawm lub pas nrig. Yog hais tias nws yog ib tug tuab txheej, nws hnyav yuav thaj tsam li ntawm 20 mus rau 30%.

Raws li lub ntsiab ntxuav hauj lwm ua tsim ntawm slag, uas muaj hauv daim ntawv ntawm ib tug uas tsis yog-hlau hlau ntawm sab hnyav piv rau hlau. Lub slag floats upward nyob rau hauv welding, tsim ib tug tiv thaiv txheej. Tom qab txuas piping vuam slag yuav tsum khob. Thaum lub kiav txhab yuav nkig, nws yuav raug tshem tawm haum yooj yim.

Lub electrodes yog tam sim no muaj nrog ntau hom coatings, lub tom kawg uas yog tsim rau cov kev pab raws qib. Piv txwv li, ib tug cellulosic txheej no yog siv rau Vuam piping imposing txoj kab uas hla. Nrog rau cov electrodes muaj peev xwm tsim ncig thiab ntsug nqaws.

Lub electrodes yuav pom muag nrog Rutile txheej uas yog yooj yim cig thiab ntaub ntawv ib tug slag ua kiav txhab siab brittleness. Nrog rau cov electrodes muaj peev xwm tsim kev nthuav qhia cov pob qij txha, fillet welds, tack thiab boil kom huv si tsim cov hauv paus hniav pob qij txha. Qhov no pub rau kev twb kev txuas ntawm ib tug zoo nkauj tsos.

pipeline vuam txheej txheem yuav koom nrog rau kev siv ntawm electrodes nrog rutile-acidic txheej. Qhov no cov ntaub ntawv uas nta yooj yim tev sib cais thiab electrode noj yog me me, yog li txuag. Rutile coated tselyulloznoe suited rau cov pob qij txha nyob rau hauv tag nrho cov txaus qhia, uas yuav tsum tau qhia upward, uas yog lub feem ntau nyuaj.

Suture uas muaj viscosity yuav tsum tau nrog lub ntsiab electrode txheej. Raws li ib tug tshwm sim, yuav ua tau kom tsim tebchaw uas tsis keej. Cov khoom yog zoo heev rau kev siv uas tuab-walled kav thiab cov khoom, uas yuav tsum tau ua nyob rau hauv yooj yim tej yam kev mob.

kho vuam

Koj muaj peev xwm nqa tawm kho ntawm pipelines welding. Ua li no, lub puas feem yuav tsum tau ntxuav mechanically. Permissible tu Sandblasting, abrasive disks, polishers thiab disc hlau txhuam.

Kho vuam yuav surfacing nyob rau puas tej qhov chaw. Puas tej zaum yuav tshwm sim los ntawm xeb rau ntawm qhov chaw tau tsim khawb, phem, lim hiam thiab txaus ntshai. Nyob rau hauv thiaj li yuav meej lub phab ntsa thickness yuav tsum siv kev ntsuas thiab kev soj ntsuam. Permissible thiab ntxiv lub cev txoj kev uas yog tsis puas.

Tsis xws luag, ntawm qhov tob ntawm uas yog 0.2 hli, yuav raug tshem tawm los ntawm kev sib tsoo. Standards yeeb nkab vuam nyob koom nrog cov kev siv ntawm ib phau ntawv txoj kev siv cov electrodes nrog lub ntsiab cover. Rau Vuam thawj weld muab tub lim nws yog pom zoo kom siv electrodes uas nws txoj kab uas hla nce mus txog 3.2 hli. Rau cladding thiab sau cov pob qij txha electrode txoj kab uas hla tej zaum yuav yog los ntawm 3 mus rau 4 hli.

Txheej txheem pipeline vuam txheej txheem calcining electrodes. Tau siv electrodes calcined nyob rau hauv chaw tej yam kev mob. Nyob rau hauv cov ntaub ntawv no, mus rau qhov chaw ntawm ntau lawm, lawv yuav tsum tau muab coj los rau kaw ntim. Cia electrodes ntawm lub teb chaws cov qauv li yuav tsum tau rhuab nyob rau hauv ib tug qhuav chav tsev, uas kub tsis poob rau hauv qab no +15 ° C.

Puas feem ua ntej deposition yuav tsum tau rhuab los ntawm hluav taws xob cua sov kiag li lawm. Nws yog tej zaum yuav siv ib tug induction txoj kev uas enables niaj hnub cua kub. Tau siv roj burners los yog cua sov. Vuam yuav tsum tau siv ib tug inverter txoj kev. Surfacing yog ua nyob rau ntawm ib tug tas mus li tam sim no ntawm rov qab polarity.

arc ignition yog ua nyob rau ntawm cov npoo ntawm cov qauv ntawm cov puas feem. Vuam muab tub lim khaubncaws sab nraud povtseg rectilinear los yog yeej zoo lawm ua nqaim menyuam. Siv tswvyim - counter-symmetrical. zog nyob rau hauv txhua cov kev taw qhia nram qab no lub leeg yuav counter. Lub dav ntawm cov thawj filling txheej yuav sib txawv ntawm 4 mus rau 6 hli. Tag nrho cov tom ntej khaubncaws sab nraud povtseg muaj ib tug dav ntawm 8 rau 10 hli.

xaus

Nrog khoom uas tsimnyog siv vuam yeeb nkab tshuab koj yuav siv koj tus kheej. Txawm li cas los, nws yog ib qho tseem ceeb los mus xaiv tus muaj txoj cai electrodes, yog li nws yog tsim nyog los noj mus rau hauv tus account lub thaj chaw ntawm cov ntaub ntawv uas ua lub hauv paus ntawm cov yeeb nkab. Piv txwv li, nyob rau hauv kev txiav txim mus cuag cov kav dej ua los ntawm cov hlau, yuav tsum tau tshwj tseg los ntawm lub vuam cov ntaub ntawv uas nrog cov thawj los yog rutile.

Yog hais tias lub nqaws yog tseg rau galvanized steel yeeb nkab dov, nws yog tsim nyog los npaj lub electrodes rau Vuam galvanized kav. Raws li lub ntsiab nta ntawm vuam ua hauj lwm nrog zinc galvanized kav protrudes kub kub. Nws yog qis nyob rau hauv kev sib piv nrog uas yog muaj tseeb rau cov hlau. Qhov no qhia tau hais tias cov zinc coating yuav qhuav thaum rhuab.