E7024 electrodes

I. Vuam cov txheej txheem tsis

Hom tam sim no thiab polarity
Nws txhawb lwm txoj kev hloov pauv tam sim no (AC) lossis DC Rov qab polarity (DC +); Qee cov tuam ntxhab tseem cia DC ncaj polarity (DC -). Piv txwv li, cov lus pom zoo tam sim no rau 3.2MM Electrode yog AC 115-175A lossis DC ± 100-160, nws yog AC 180-240A lossis DC ± 16-215A. Qhov tseeb tam sim no yuav tsum tau hloov kho raws li lub workpiece thiab sib koom tes kom tsis txhob muaj kev kub ntxhov uas ua rau muaj cov pas dej tsis txaus.

Vuam ceev thiab lub kaum ntse ntse
Txais yuav cov kev sib tw rub tawm cov txheej txheem, nrog rau hluav taws xob ua ib qho 30 {}} lub ntsej muag sib luag nrog lub tshuab hluav taws xob ruaj khov (kwv yees sib npaug zos rau lub taub hau hluav taws xob). Kev siv nrawm nrawm no tuaj yeem ua rau tsis tiav Fusion, thaum lub sijhawm qeeb qeeb ntau dua tuaj yeem ua rau dav dav dav lossis hlawv-dhau.

Arc ruaj khov
Tswj kom luv - arc kev ua haujlwm kom tsis txhob muaj kev sib tw thiab cov porosity los ntawm cov arcs ntev. Flux Txheej Tsim Tsim ntawm E7024 ua kom tus kheej-}}}}}}}}}}}}} Cov pob dej slag kom tiv thaiv cua cua.

Ii. Ua hauj lwm npaj thiab tswj ib puag ncig

Saib
Ua kom huv si cov roj, xeb, noo noo, thiab pleev xim los ntawm cov chaw ua haujlwm; Nws raug nquahu kom zom rau cov xim hlau thiab cov xim sib tsoo siv lub log sib tsoo lossis xaim txhuam. Residual impurities yuav ua rau Weld Porosity lossis cov kab nrib pleb.

Preheating thiab interpass Kub

Cov xwm txheej dav dav: Thaum qhov kub nyob hauv qab 5 degree, preheating lub workpiece mus rau 100}}}}}}}} tech tus nqi thiab tiv thaiv hydrogen-inducts nrib pleb.

Tuab daim hlau lossis siab -} Constrain pob qij txha: Lub preheating kub yuav tsum tau nce rau 150-200 degree, thiab cov kev cuam tshuam kub yuav tsum tau tswj qhov kub hauv qab no 200℃kom tsis txhob muaj weld overheating.

Cov Ntaub Ntawv Tshwj Xeeb: Thaum vuam tsawg - alloy steel sib npaug (piv txwv li preheat rau 150-250℃yog CEQ> 0.45%).

Kev tiv thaiv ib puag ncig thiab cua tiv thaiv
Cov txheeb ze cov av noo yuav tsum nyob hauv qab 60%. Rau cov haujlwm sab nraum zoov, cov cua daj cua dub yuav tsum tau muab ntsia los tiv thaiv cov cua muaj zog los ntawm kev cuam tshuam Arc ruaj khov.

III. Kev tswj hwm hluav taws xob

Cia thiab ziab

Kev Cia: Cov hluav taws xob yuav tsum muab cia rau hauv ib qho qhuav, zoo - ventatated thaj chaw nrog kub huv (100-120℃f) thiab txheeb ze av noo hauv qab 50%.

Kom Qhuav: Yog tias electrodes nqus dej noo, lawv yuav tsum tau qhuav ntawm 120-150 feeb, nrog rau cov neeg rov qab qhib rau hauv lub rwb thaiv tsev box (50-100 degree) thiab coj raws li xav tau.

Kev Siv Hluav Taws Xob
Tsis pub ntau tshaj 2kg ntawm cov electrodes yuav tsum tau noj ib lub sijhawm; Cov ntaub ntawv tsis siv yuav tsum tau rov qab mus rau lub chaw rau khoom rau kev rov ua dua. Qhov ntev ntawm electrode stubs yuav tsum tsis pub tshaj 50 hli kom tsis txhob zam flux coating detachment cuam tshuam vuam zoo.

IV. Cov Txheej Txheem Kev Lag Luam thiab Kev Tswj Xyuas Zoo

Interpass tu rau ntau -}} dhau vuam
Tom qab ua tiav txhua Weld PASS, lub shrag yuav tsum muab tshem tawm kom meej (siv ib qho kev sib txhuam uas muaj kev sib dhos lossis cov npoo hlau), tshwj xeeb yog tsom rau kev sib xyaw ntawm cov kab mob rau slag.

Arc striking thiab tua

Arc ciav: Tawm tsam Arc ntawm Khiav -} ntawm tab lossis ntug ntawm lub zawj; Zam kev tawm tsam ncaj qha rau kev ua haujlwm kom tiv thaiv arc khawb.

Arc extinguishing: Maj mam ua ntev lub arc los sau cov kev ua qab yias thiab tiv thaiv kev ua kaub kab nrib pleb. Thaj tsam sib koom yuav tsum yog av rau hauv txoj kab nqes los ua kom zoo fustoment rau tom weld kis.

Weld tsos
Tus Weld zoo tshaj plaws yuav tsum muaj cov ntses ntses zoo nkauj heev - Cov qauv sib tw, tsis muaj kev cuam tshuam, kev nyuaj siab, lossis kev cuam tshuam dhau los. Yog tias pits lossis tsis tiav fusion tshwm sim, kho qhov tam sim no lossis vuam ceev.

V. Kev Nyab Xeeb thiab Kev Tiv Thaiv

Kev tiv thaiv tus kheej
Hnav Stander -} Ua Raws Li Cov Vuam Hlau (Loos Las Hlis 10-12, Cov Khaub Ncaws Hnav, thiab Sib Tw Teeb Meem.

Qhov cua thiab ntsuas tswj
Manganese - muaj cov pa taws yog tsim los thaum lub sij hawm e7024 vuam; Ntev -} lub sijhawm nqus pa yuav ua rau muaj kev noj qab haus huv. Nws raug nquahu kom ua haujlwm nyob rau hauv ib tug zoo- pa av ib puag ncig, thiab cov hlab pa pa pa yuav tsum tau siv yog tias tsim nyog.

Khoom Soj Ntsuam
Nquag tshuaj xyuas lub tshuab vuam, cable rwb thaiv tsev, thiab electrode tuav los xyuas kom muaj kev nyab xeeb ntawm cov cuab yeej.

VI. Ceev faj rau cov xwm txheej tshwj xeeb

Tuab Phaj Vuam
Rau cov neeg ua haujlwm nrog lub thickness tshaj 25mm, mult {{txheej}}}}}}}}}}}}}}}}}}}} kub, thiab cov kev cuam tshuam kub nruj me ntsis. Post - cua sov (200-250℃rau 1 teev ntawm kev tiv thaiv cua sov) yuav txiav txim siab tom qab vuam helding hydrogen diffusion.

Tsawg -} huab cua huab cua
Thaum lub ambient kub yog qis dua -5 degree, txuas ntxiv lub sijhawm preheating thiab ntxiv kev tiv thaiv tshav kub ua kom sov kom tsis txhob txias ntawm weld, uas yuav ua rau embrittlement.

Kev Kho Mob Ua
Yog tias tus weld muaj qhov tsis xws luag (xws li porosity lossis cov kab nrib pleb), cov tsis xws luag yuav tsum tau muab tshem tawm tag nrho ua ntej rewelding. Tus naj npawb ntawm kev kho mus los yuav tsum tsis pub tshaj 2 kom tsis txhob muaj ntau dua ntawm lub hauv paus hlau.

VII. Cov Kev Siv Raug thiab Cov Txwv

Daim ntawv thov tau: Feem ntau yog siv rau vuam tsawg - @} {{{{{{}}}}}} eco}

Kev txwv: Tsis pom zoo rau high - Kev txiav pob qij txha lossis qee zaum yuav tsum muaj kev cuam tshuam loj (piv txwv li cov nkoj qis}} kub}} kub}} kub vessels); Nyob rau hauv cov xwm txheej zoo li no, qis - hydrogen mround electrodes (piv txwv li E7018) yuav tsum tau siv.

Lub ntsiab

Lub vuam zoo ntawm E7024 nyob ntawm parameter txuam, ib puag ncig tswj, thiab cov ntsiab lus ua haujlwm. Nws raug nquahu kom tsim cov txheej txheem tshwj xeeb raws li cov khoom siv ua haujlwm thiab cov thickness, thiab xyuas nws los ntawm kev xeem vuam. Nruj me ntsis kev siv preheating, kev txhawb nqa kev tswj hwm tu, thiab kev ntsuas hluav taws xob tuaj yeem txo qis qhov tsis xws luag thiab ua kom muaj zog thiab cov tsos zoo ntawm Weld.

Cim npe nrov: E7024 cov hluav taws xob, Tuam Tshoj, tuam ntxhab, cov chaw muag khoom, Hoobkas, tuam txhab, kev lag luam, yuav, tus nqi qis, zoo, khoom lag luam