Yog vim li cas liab tooj liab nyuaj rau weld

Liab tooj liab, lossis liab tooj liab, tsis yooj yim rau vuam. Cov txheej txheem vuam ntawm cov tooj liab liab suav nrog roj vuam, phau ntawv carbon arc vuam, phau ntawv arc vuam thiab phau ntawv argon arc vuam, thiab vuam tsis siv neeg kuj tuaj yeem siv rau cov qauv loj.

1. Gas vuam ntawm tooj liab

Vuam liab tooj liab yog feem ntau siv pob tw pob tw, ncej puab thiab T-joint tsawg li sai tau. Ob hom vuam hlau tuaj yeem siv tau rau cov roj vuam, ib qho yog cov vuam hlau uas muaj cov khoom deoxidation, xws li hlau 201, 202; Lwm qhov yog cov tooj liab dav dav hlau thiab cov khoom siv hauv paus txiav, siv tus neeg sawv cev roj 301 ua flux. Cov nplaim hluav taws xob nruab nrab yuav tsum tau siv rau cov roj welding liab tooj liab.

2. Kev tuav arc vuam ntawm tooj liab liab

Nyob rau hauv phau ntawv arc vuam, liab tooj liab electrode tooj liab 107, vuam core yog liab tooj liab (T2, T3). Cov npoo ntawm qhov vuam yuav tsum tau ntxuav ua ntej vuam. Thaum lub thickness ntawm vuam qhov ntau dua 4 hli, nws yuav tsum tau preheated ua ntej vuam, thiab preheating kub yog feem ntau txog 400 ~ 500 degree. Vuam nrog tooj liab 107 electrode, fais fab mov yuav tsum yog dc rov qab kev twb kev txuas.

Vuam yuav tsum yog luv arc, electrode yuav tsum tsis txhob ua viav vias kab rov tav. Vuam pas nrig rau reciprocating linear tsab ntawv tsa suab, tuaj yeem txhim kho qhov zoo ntawm qhov vuam. Kauj ruam rov qab vuam yuav tsum tau siv rau ntev welds. Vuam ceev yuav tsum ceev li sai tau. Nyob rau hauv multilayer welding, lub slag ntawm txheej yuav tsum tau muab tshem tawm tag nrho.

Vuam yuav tsum tau ua nyob rau hauv ib qho chaw zoo-ventilated los tiv thaiv tooj liab lom. Tom qab vuam, tiaj tus rauj yog siv los khob qhov vuam kom tshem tawm kev ntxhov siab thiab txhim kho qhov zoo ntawm cov vuam.

3. Phau ntawv argon arc vuam ntawm tooj liab liab

Nyob rau hauv liab tooj liab phau ntawv argon arc vuam, siv hlau 201 (tshwj xeeb liab tooj liab hlau) thiab hlau 202, kuj siv liab tooj liab hlau, xws li T2. Ua ntej vuam, oxide zaj duab xis, roj thiab lwm yam av ntawm qhov vuam ntug ntawm lub workpiece thiab qhov chaw ntawm vuam hlau yuav tsum tau muab ntxuav kom tsis txhob muaj qhov tsis xws luag xws li porosity thiab slag suav nrog. Kev tu cov txheej txheem suav nrog kev tu txhua yam thiab tshuaj ntxuav.

Thaum lub taub qab sib txuas phaj thickness tsawg dua 3 hli, tsis muaj qhov qhib; Thaum lub phaj thickness yog 3 ~ 10 hli, v-shaped zawj yog qhib thiab zawj lub kaum sab xis yog 60 ~ 70º; Thaum lub phaj thickness ntau dua 10 hli, qhov x-hom zawj yog qhib, thiab lub zawj lub kaum sab xis yog 60 ~ 70º; Txhawm rau kom tsis txhob ua tiav vuam, feem ntau tsis muaj blunt ntug. Raws li lub thickness ntawm lub phaj thiab qhov luaj li cas ntawm qhov zawj, lub rooj sib txoos clearance ntawm lub pob tw ob leeg yog xaiv nyob rau hauv qhov ntau ntawm 0.5 ~ 1.5 hli. Liab tooj liab phau ntawv argon arc vuam, feem ntau yog siv DIRECT tam sim no kev twb kev txuas, uas yog, tungsten electrode tsis zoo electrode. Txhawm rau tshem tawm cov porosity thiab ua kom ntseeg tau tias kev sib xyaw ua ke thiab nkag mus ntawm cov hauv paus hniav, nws yog ib qho tsim nyog yuav tsum tau ua kom vuam ceev, txo cov roj argon, thiab preheat qhov vuam. Thaum lub phaj thickness tsawg dua 3 hli, lub preheating kub yog 150 ~ 300 degree; Thaum lub phaj thickness yog ntau tshaj 3 hli, lub preheating kub yog 350 ~ 500 degree. Lub preheating kub yuav tsum tsis txhob siab dhau heev lawm, txwv tsis pub cov neeg kho tshuab zog ntawm welded sib koom yuav raug txo.

4, muaj carbon arc vuam ntawm tooj liab, carbon arc vuam electrode muaj carbon electrode thiab graphite electrode. Lub vuam hlau siv rau cov pa roj carbon arc vuam ntawm tooj liab liab yog tib yam li siv rau cov roj vuam. Nws tseem tuaj yeem raug txiav los ntawm cov khoom siv hauv paus thiab flux ntawm cov tooj liab liab tuaj yeem siv rau kev siv roj, xws li tus neeg sawv cev roj 301.

Yog tias koj muaj lus nug, thov hu rau peb. Peb lub tuam txhab tuaj yeem tsim ntau yam koob txhaj tshuaj, koob tshuaj kho mob, koob txhaj tshuaj, koob tshuaj hypodermic, koob txhaj tshuaj, koob tshuaj tiv thaiv kab mob, koob txhaj tshuaj, koob txhaj tshuaj, koob tshuaj tua tsiaj, koob xaum koob, koob ovum khaws koob, koob txhaj tshuaj, thiab lwm yam Yog tias koj xav tau kev kho. koob cov khoom, thov hu rau peb. Peb tos ntsoov rau koj qhov kev nug! Qhov zoo ntawm cov khoom tsim nyob rau hauv peb lub Hoobkas yuav txaus siab rau koj!

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