1.What yog cov tseem ceeb ntawm cov ntsiab lus ntawm phau ntawv arc vuam?
Vuam Qws Xaiv:
Nyiam dua, xaiv qis - hydrogen electrodes (xws li e915} g thiab e5016) kom tsis txhob muaj hydrogen {}}}}}}}}}}}}}}} inducion txias tawg. (Q355B muaj cov alloying cov ntsiab xws li MN thiab NB, thiab muaj me ntsis hardening nyiam dua Q235B. Txo cov ntsiab lus hydrogen hauv weld.)
Yog tias zinc txheej yog nyias (tsawg dua los yog sib luag rau 80μm) thiab siv cov txheej txheem hauv Weld yuav tsum tau ntxuav ua ntej kom txo porosity.
Cov txheej txheem vuam:
Ua ntej vuam, zom cov txheej xim
Tswj cov tam sim no nyob rau hauv qis qis ntawm kev pom zoo ntau (piv txwv li, 90-120A rau kev siv cua sov, thiab tsis txhob sib tiv thaiv ntau ntawm cov matrix nplej. Muaj feem cuam tshuam cov xwm txheej:
Ntawm - chaw ntawm cov qauv steel installation (xws li vuam ncej
2.Qhov dab tsi yog cov tseem ceeb ntawm cov roj thaiv hluav taws xob vuam?
Vuam Hlau thiab Kev Tiv Thaiv Roj:
Xaiv qhov qis -} {{{1} {-g) uas phim rau lub zog ntawm Q355B (weld tensile lub zog ntau dua los yog sib npaug ntawm 490 mpa, sib xws nrog cov khoom siv hauv paus).
Nyiam dua, siv ib qho 80% ar+ 20}}}% sib xyaw cov roj sib tov (Mag Vuam). Kev txo lub ntsej muag, thaum sib txuas txhim kho Arc ruaj khov, zam kev sib tw ntau dhau los ntawm kev ntshiab. Yog tias cov galvanized txheej yog tuab, cov ntawv muaj peev xwm yuav tsum tau nce ntxiv (piv txwv li 90%}}% kom txo qis zinc vapor cuam tshuam. Cov txheej txheem vuam:
Siv luv - kev hloov tsheb thauj khoom (tsim nyog rau cov phaj nyias, tam sim no}}}}}}} {}} 18-22v) rau cov cua sov tsawg thiab tsawg kawg nkaus zinc hlawv. Siv hluav taws xob dav hlau tuaj yeem siv rau cov phiaj tuab, tab sis zinc txheej yuav tsum tau polished ua ntej.
Tswj lub teeb vuam kaum lub kaum lub teeb ntawm 80-90℃(txiav kom tiv thaiv zinc vapap los ntawm kev khiav raws lub teeb thiab ua rau pores. Tswj kev hlau txuas ntev ntawm 10-15mm (luv heev tuaj yeem yooj yim clog lub nozzle
Cov Kev Siv Siv Tau:
Hoobkas pawg ntau lawm (piv txwv li, txuas ntxiv vuam ntawm photovoltaic nkhaus), thiab vuam ntawm nruab nrab {2}, cua quav flanges thiab cuab yeej cuab tam).
3.Qhov dab tsi yog cov tseem ceeb ntawm submerged arc vuam?
Vuam cov khoom xaiv:
Lub Vuam Hlau thiab Flux ua ke yuav tsum phim lub zog ntawm Q355B. Feem ntau siv yog H08MNa Vuam xaim nrog HJ431 flux (acidic flux, zoo} hydrogen flux, haum rau tsawg kub lossis hnyav thauj khoom).
Cov txheej txheem vuam:
Ua ntej vuam, zinc txheej yuav tsum tau huv (siv lub log sib tsoo lossis khau khiab). Vim yog cov tswv yim kub ntawm submerged arc vuam (tam sim no 500 rembers yuav raug hlawv tawm ntau, thiab seem zinc tuaj yeem yooj yim ua rau slag cais los ntawm Weld.
Siv cov hlau txuas rov qab (nrog cov hlau reluam txuas nrog lub davhlau ya nyob twg) kom nce qhov tob nkag. Tswj lub vuam ceev (30-50cm / min) kom tsis txhob txias ntawm Weld pas dej thiab tsim cov khaub thuas tawg.
Cov Kev Siv Siv Tau:
Taub qab vuam ntawm cov qauv siv hlau hnyav (xws li load - cov kabmob cov vaj tse nyob rau hauv cov vaj tsev thiab cov choj choj) thiab lub nkoj siab siab lub nkoj plhaub.
4.Qhov dab tsi yog cov tub ntxhais cov ntsiab lus ntawm tungsten inert roj vuam?
Vuam cov ntaub ntawv thiab cov ntaub thaiv npog roj:
Siv er50-g lossis er50-6 vuam hlau (sib txuam ntawm cov khoom siv hauv paus), thiab ntshiab argon (99.99%) thaiv cov roj los tiv thaiv kev cuam tshuam weld zoo.
Txhawm rau txhim kho corrosion tsis kam, ib qho me me ntawm silicon (xws li ER50SI-1) tuaj yeem ntxiv rau cov vuam hlau kom txo zno suav.
Cov txheej txheem vuam:
Lub galvanized txheej nyob rau hauv lub cheeb tsam weld yuav tsum yog av kom huv huv los ua rau cov hlau ci. Vim tias Tig vuam lees paub lub zog arc, Zinc Vaporization tuaj yeem ua rau "pinholes" uas tsis tuaj yeem npog los ntawm slag.
Siv qhov tsis muaj qhov tam sim no (50-100a), ib tug siab Argon Flow tus nqi (8-12L / min), thiab ib lub tshuab sib tw ntawm 8-10-hli los txhim kho kev tiv thaiv thiab tiv thaiv kev tiv thaiv cua.
Cov Kev Siv Siv Tau:
Taub qab - pob tw nyias- pa taws cov roj ntsha (xws li Q355B galvanized steel thiab 304 stainless hlau).
5.Qhov yog cov kev txwv tsis pub / ceev faj sib txawv?
Oxyacetylene vuam:
Cov kev tawm tshiab yog dispersed thiab qhov kub yog tsawg. Ib qho nyiaj ntau ntawm zinc tuaj yeem yooj yim nyob hauv Weld, ua rau muaj lub zog ntse hauv Weld zog (tensile muaj zog yuav nyob hauv qab 300 MPA). Nws tseem muaj feem siv weld ua pob thiab slag suav nrog. Yog li ntawd, nws yog nruj me ntsis txwv rau vuam thauj khoom ...- cov kabmob qauv.
Kuj tseem pom VUAM VUAM:
Lub zinc txheej muaj cov hluav taws xob tsis kam, uas tuaj yeem ua tau yooj yim ua rau "cov khaub thuas welds" (tsis ruaj khov rau kev tiv thaiv). Tsis tas li ntawd, cov chaw ua haujlwm ua kom muaj kev puas tsuaj rau cov txheej zinc Yog li ntawd, nws yuav tsum tsuas yog siv rau ib ntus, tsis {2} Lib} Cov ntaub hlau sib txuas thiab muab tso rau) thiab yuav tsum tsis txhob siv rau cov qauv txheej txheem thawj.