Dab tsi yog arc vuam?

Electrode arc vuam yog qhov siv ntau tshaj plaws vuam txheej txheem hauv kev tsim khoom lag luam. Cov hlau yuav tsum tau welded yog ib tus ncej, thiab cov electrode yog lwm tus ncej. Thaum ob tus ncej nyob ze rau ib leeg, ib qho arc tau tsim. Cov cua sov tsim los ntawm arc tawm (feem ntau hu ua arc kev sib txuas) yog siv los txuas cov hluav taws xob nrog cov khoom ua haujlwm sib xyaw ua ke thiab tsim cov weld tom qab hws, kom thiaj li tau txais cov txheej txheem vuam nrog kev sib koom ua ke.

 History of arc welding-Tianqian

Daim duab 1. Keeb kwm ntawm vuam

Luv keeb kwm

Tom qab ntau qhov kev sim vuam thaum ntxov xyoo 19th, tus neeg Askiv hu ua Willard thawj zaug tau txais daim ntawv pov thawj rau arc vuam hauv xyoo 1865. Nws siv hluav taws xob tam sim no hla dhau ob daim hlau me me kom ua tiav fuse lawv, thiab kwv yees li nees nkaum xyoo tom qab, Lavxias npe Bernard tau txais daim ntawv patent rau txheej txheem vuam arc. Nws tuav lub arc ntawm cov pa roj carbon ncej thiab cov haujlwm ua haujlwm. Thaum lub arc tau ua haujlwm ntawm tus kheej los ntawm kev sib koom ua ke ntawm cov workpieces, cov haujlwm ua haujlwm kom tau welded tau sib xyaw ua ke. Xyoo 1890s, cov hlau tau tsim los ua hluav taws xob, uas tau haus hauv cov pas dej ua ke thiab dhau los ua ib feem ntawm cov hlau txuas. Txawm li cas los xij, oxygen thiab nitrogen hauv huab cua tsim cov pa phem thiab nitrides hauv cov hlau txuas. , Yog li ua rau cov khoom siv tsis zoo.

Thaum pib xyoo pua 20th, qhov tseem ceeb ntawm kev tiv thaiv arc kom tsis txhob nkag mus rau huab cua tau pom, thiab kev siv cov cua sov txhawm rau txhawm rau txhawm rau txheej txheej rau hauv cov hluav taws xob ntawm cov pa tiv thaiv daim hlau los ua txoj hauv kev zoo tshaj. Hauv nruab nrab-1920s, txheej txheej txheej txheej tau tsim, uas zoo heev txhim kho qhov zoo ntawm cov hlau txuas. Nyob rau tib lub sijhawm, nws kuj tseem yuav yog qhov hloov pauv tseem ceeb tshaj plaws ntawm arc vuam. Cov cuab yeej tseem ceeb hauv cov txheej txheem vuam suav nrog lub tshuab siv hluav taws xob, vuam siv tus nplaig thiab daim npog ntsej muag.

 Welding principle-TianqiaoDaim duab 2. Lub hauv paus ntsiab lus ntawm vuam

Txoj Cai

Lub vuam arc yog siv los ntawm cov khoom siv fais fab. Nyob rau hauv qhov kev txiav txim ntawm qee qhov hluav taws xob, qhov muaj zog thiab ntev ntev tshwm sim tshwm sim ntawm cov hluav taws xob (thiab qhov kawg ntawm cov hlau txuas lossis txuas vuam) thiab ua haujlwm. Lub hauv paus ntawm vuam arc yog kev siv roj, uas yog, qhov nruab nrab cov pa hauv qhov chaw uas lub arc nyob yog decomposed rau hauv qhov zoo them zoo ions thiab tsis zoo them electrons nyob rau hauv qhov kev txiav txim ntawm qee yam voltage, uas yog hu ua ionization. Ob qhov kev them nqi no tau hais ncaj qha rau ob tus ncej. Kev txav mus los ua kom cov pa hauv zos siv hluav taws xob los ua ib qho arc. Cov hluav taws xob hluav taws xob hloov hluav taws xob hluav taws xob mus rau hauv tshav kub, uas ua kom sov thiab yaj cov hlau los tsim cov khoom sib txuas.

Tom qab lub arc raug ntxias kom "taws", cov txheej txheem tso tawm nws tus kheej tuaj yeem tsim cov khoom me me uas xav tau los txhawb nqa kev tso tawm, uas yog qhov tshwm sim ntawm tus kheej tawm mus. Thiab cov txheej txheem tawm hluav taws xob muaj qhov hluav taws xob qis, tam sim no siab, kub thiab muaj zog luminescence. Nrog cov txheej txheem no, hluav taws xob hluav taws xob tau hloov pauv mus ua cua sov, kho tshuab thiab lub zog hluav taws xob. Vuam feem ntau yog siv nws cov cua sov thiab cov khoom siv dag zog kom ua tiav lub hom phiaj ntawm kev txuas cov hlau.

Thaum lub sij hawm vuam, qhov kub hnyiab ntawm cov vuam txuas thiab cov vuam ua haujlwm, yaj cov khoom ua haujlwm thiab cov tub ntxhais hluav taws xob los ua lub pas dej ua ke. Nyob rau tib lub sijhawm, txheej txheej electrode kuj tseem yaj, thiab cov tshuaj lom tshwm sim los ua cov slag thiab roj, uas tiv thaiv qhov kawg ntawm cov hluav taws xob, cov tee dej, cov pas dej ua ke thiab cov hlau kub ua kom sov.

 

Kev faib tawm tseem ceeb

Cov txheej txheem siv vuam feem ntau suav nrog Shielded Metal Arc Welding (SMAW), Submerged Arc Vuam (SAW), Gas Tungsten Arc Weld (GTAW lossis TIG welding), Plasma Arc Vuam (PAW) thiab Gas Hlau Arc Vuam (GMAW , MIG lossis MAG welding) ) lwm yam

 E7018-Tianqiao

Daim duab 3. E7018 vuam electrode

Shielded Hlau Arc Vuam (SMAW)

Shielded hlau arc vuam siv cov electrode thiab cov khoom ua haujlwm raws li ob qho hluav taws xob, thiab cov cua sov thiab tshuab quab yuam ntawm lub hneev taw tau siv txhawm rau txhawm rau txhawm rau txhawm rau ua haujlwm hauv lub sijhawm. Nyob rau tib lub sijhawm, nyob rau hauv qhov kev ua ntawm cov cua sov, qhov kawg ntawm cov hluav taws xob tau yaj mus ua cov dej me me, thiab cov haujlwm ua haujlwm ib nrab tau yaj ua ib lub qhov taub uas muaj cov kua ua kua. Cov hlau ua kua molten thiab cov tee dej ntawm cov haujlwm ua rau lub pas dej ua ke. Thaum lub sijhawm txheej txheem txheej txheem, txheej txheej thiab tsis yog hlau yog qhov sib xyaw ua ke sib xyaw ua ke thiab tsim cov khoom tsis yog xim hlau uas npog qhov chaw ntawm cov hlau txuas los ntawm kev hloov tshuaj hu ua slag. Raws li txoj kab txav mus los, lub pas dej ua ke txias thiab ua kom sib zog ua ke. Peb muaj ntau yam vuam electrode rau SMAW, cov qauv nrov tshaj plaws yogE6010, E6011, E6013, E7016, E7018, thiab rau stainless hlau, cam khwb cia hlau, tawv surfacing lwm yam.

 Submerged-Arc-Welding-SAW-TianqiaoDaim duab 4. Submerged arc vuam

Submerged Arc Vuam (SAW)

Submerged arc vuam yog ib txoj hauv kev uas cov hluav taws kub hnyiab hauv qab txheej flux rau vuam. Cov hlau hluav taws xob uas siv hauv cov vuam submerged arc yog cov hlau liab qab uas tau txais kev pub nkag mus yam tsis muaj kev cuam tshuam. Feem ntau, lub laub siv vuam siv lossis lwm yam khoom siv hluav taws xob thiab khoom siv hluav taws xob tau siv los paub qhov tsis siv neeg txav ntawm lub arc thaum txheej txheem vuam. Lub arc ntawm submerged arc vuam kub hnyiab nyob rau hauv cov granular flux. Cov cua sov ntawm cov hluav taws kub yaj thiab ua kom ya raws qhov ncaj qha ua los ntawm txoj hlua ntawm cov khoom ua haujlwm, qhov kawg ntawm cov hlau txuas thiab cov dej ntws, thiab cov pa ntawm cov hlau thiab cov dej ntws tawm mus ua qhov kab noj hniav kaw ib puag ncig. Hlawv hauv kab noj hniav no. Cov kab noj hniav nyob ib puag ncig los ntawm zaj duab xis slag tsim los ntawm slag tsim los ntawm cov dej ntws tawm. Cov yeeb yaj kiab slag no tsis yog tsuas yog cais cov huab cua los ntawm kev sib cuag nrog cov koov thiab cov pas dej ua ke, tab sis kuj tiv thaiv cov arc los ntawm kev tawm mus. Cov vuam hlau ua kom sov thiab yaj los ntawm cov arc ntog rau hauv daim ntawv ntawm cov tee dej thiab sib xyaw nrog cov hlau ua haujlwm ua kom cov hlau yaj ua ib lub pas dej. Qhov tsawg ntom ntab ntab ntab ntawm lub pas dej yaj. Ntxiv nrog rau kev sib cais cov tshuab thiab kev tiv thaiv ntawm cov pas dej ua ke molten, slag yaj kuj tseem muaj cov tshuaj tiv thaiv cov hlau nrog cov hlau pas dej ua ke thaum lub sijhawm txheej txheem vuam, yog li cuam tshuam cov tshuaj lom neeg muaj pes tsawg leeg ntawm cov hlau txuas. Lub arc txav mus rau tom ntej, thiab cov pas dej ua ke molten maj mam txias thiab crystallizes los ua lub weld. Tom qab cov molt slag ntab nyob rau sab saud ntawm lub pas dej molten txias, ib cov slag crust tau tsim los txuas ntxiv los tiv thaiv qhov txuas ntawm qhov kub thiab tiv thaiv nws los ntawm oxidized. Peb muab cov flux rau SAW, SJ101SJ301SJ302

TIG-TianqiaoDaim duab 5. Roj Tungsten Arc Weld-TIG

Graws li Tunua gsten Arc Weld/Tungsten Inert Gas Vuam (GTAW lossis TIG)

TIG vuam hais txog kev siv vuam arc uas siv tungsten lossis tungsten alloy (thorium tungsten, cerium tungsten, thiab lwm yam. Thaum lub sijhawm siv vuam, muab cov hlau ntim tau ntxiv lossis tsis ntxiv raws li daim ntawv zawj ntawm qhov txuas thiab qhov ua tau zoo ntawm cov hlau txuas. Filler hlau feem ntau yog ntxiv los ntawm lub hauv ntej ntawm lub arc. Vim yog qhov tshwj xeeb ntawm aluminium-magnesium thiab nws cov khoom siv hlau, AC tungsten arc vuam xav tau rau vuam, thiab DC tungsten arc vuam siv rau lwm yam khoom siv hlau. Txhawm rau tswj cov cua sov nkag mus, pulsed argon tungsten arc vuam siv ntau dua thiab ntau dua. Feem ntau siv TIG vuam hlau yogAWS ER70S-6, E 80S-GSIB 4043QAB 5356HWV 221 thiab lwm yam.

Plasma Arc Welding-Tianqiao Daim duab 5. Plasma Arc Vuam

Plasma Arc Vuam (PAW)

Plasma arc yog daim ntawv tshwj xeeb ntawm arc. Lub arc kuj tseem yog tungsten lossis tungsten alloy (thorium tungsten, cerium tungsten, thiab lwm yam) raws li arc electrode, siv argon ua cov pa tiv thaiv, tab sis tungsten electrode tsis nthuav tawm ntawm lub taub hau, tab sis thim sab hauv lub taub hau, lub taub hau yog dej txias, tseem hu ua dej txias txias. Cov pa roj inert tau muab faib ua ob ntu, ib feem yog cov pa tawm ntawm cov tungsten electrode thiab cov dej txias txias, hu ua ion gas; lwm qhov yog cov pa tawm ntawm cov taub dej txias thiab lub tshuab nqus pa tiv thaiv, hu ua Shielding gas, siv cov raj ntshav ua cov cua sov rau vuam, txiav, txau, ntab, thiab lwm yam.

 Worker welding theironDaim duab 5 Hlau-Inert Gas Vuam

Hlau Inert Gas Vuam (MIG)

MIG vuam txhais tau tias vuam hlau hloov lub tungsten electrode. Lub vuam hlau nws tus kheej yog ib qho ntawm tus ncej ntawm arc, ua lub luag haujlwm ntawm kev siv hluav taws xob thiab tsim hluav taws xob, thiab tib lub sijhawm zoo li cov khoom ntim, uas tsis tu ncua yaj thiab sau rau hauv qhov txuas hauv qhov kev ua ntawm arc. Cov pa tiv thaiv uas nquag siv nyob ib puag ncig lub hauv paus tuaj yeem yog cov pa inert Ar, cov pa roj CO2, los yog Ar+CO2sib xyaw roj. MIG welding uas siv Ar ua cov pa tiv thaiv hu ua MIG welding; MIG welding uas siv CO2 raws li kev tiv thaiv cov pa hu ua CO2vuam. MIG nrov tshaj plaws yog AWS ER70S-6, E 80S-G.


Sijhawm Tshaj Tawm: Aug-17-2021