Puas yog vuam hlau mus tsis zoo?

Vuam hlau, xws li ntau cov ntaub ntawv muaj ntau, tsis muaj hnub kawg nkaus, tab sis nws tuaj yeem mus tsis zoo rau qhov chaw uas nws ua rau nws muaj zog, lossis cov ntaub ntawv tsis sib xws. Qhov kev cuam tshuam no yog tshwm sim los ntawm ib puag ncig kev sib kis, kev puas tsuaj rau lub cev, lossis cov kev hloov pauv, thiab nws txawv ntawm hom xaim. Nkag siab txog cov cim hluav taws xob uas tsis zoo thiab yuav ua li cas tiv thaiv cov tsis zoo yog qhov yuam sij kom zam tau Weld Weld swb.
Yuav ua li cas vuam hlau degrades: qhov tseem ceeb ua
Cov ntsiab lus tseem ceeb uas ua rau vuam hlau mus rau qhov tsis zoo yog khi rau nws cov lus sib xyaw thiab kev cia khoom:
• Nahfab yuav tsum nqus: Qhov no yog qhov kev hem thawj loj tshaj plaws, tshwj xeeb tshaj yog rau flux - cored xaim. Flux (hmoov hmoov nyob rau hauv flux {{2} hygroscopic {} hygly} Kuv puas muaj porosity (me me roj (me me roj npuas) hauv Weld. Txawm tias cov xov hlau tau yooj yim: noo noo ua rau cov hlau xaim hlau rau xeb, thiab txhuas cov xov hlau los ua tuab, tawv oxide txheej uas cuam tshuam Arc stability.
• Corrosion: steel thiab hlau stainless hlau kub cuam tshuam rau cov pa o thiab paug. Cov hlau hlau me me muaj kev xeb, uas tawg rau hauv lub pas dej weld thiab ua rau muaj kev suav nrog (tsis muaj zog). Stainless hlau xaim poob lawv corrosion tsis kam yog tias raug rau cov ntsev lossis tshuaj chromium (uas ua rau cov tshuaj tiv thaiv oxide) reacts nrog paug.
• Lub cev puas tsuaj: cov xov hlau uas yog kinked, tangled, lossis bent thaum lub sij hawm cia lossis tuav pub tsis ncaj los ntawm kev sib tw phom. Qhov no ua rau muaj kev sib tw, cov kev coj ua arcular, thiab tsis sib xws}} Cov xov tooj nrog nyias nrog nyias muaj nyias li 0.023-inch diameters, uas tau yooj yim puas.
• Flux tsis zoo: Sijhawm rau lub sijhawm, flux hauv flux in flux- cored xaim hluav taws xob tuaj yeem ua rau roj, plua plav nrog cov roj / hmoov av hauv huab cua. Qhov no txo ​​nws lub peev xwm yuav npog lub pas dej weld lossis ntxuav cov hlau, ua rau swb rau weld lossis tsis sib xws.
Cov paib qhia tias vuam hlau tau ploj mus tsis zoo
Welders tuaj yeem pom cov hlau tsis zoo los ntawm kev tshuaj ntsuam xyuas thiab teeb meem kev ua tau zoo:
• Daim chij liab:
◦Rust, discoloration, los yog ib tug hmoov kav ntawm cov xov hlau.
◦a olub, greyish oxide txheej rau txhuas cov xov hlau (dhau ntawm nyias, ci iab rau cov kua oxide tam sim ntawd tom qab kev tsim khoom).
◦Tangles, kinks, lossis bent ntu nyob rau hauv cov kab lig xaim, uas ua rau pub mis.
◦Clumpy lossis Harden Flux pom nyob rau thaum xaus ntawm flux - Cored hlau (ib qho kos npe ntawm cov dej khov ua lossis hnub nyoog).
• Kev Tshawb Nrhiav Qhov Teeb Meem:
Cov ntaub ntawv hauv Welds nrog npuas lossis qhov cim meej ntawm cov dej noo hauv flux in flux- cored xaim lossis xeb ntawm cov xov hlau).
◦Spiate, popptering, lossis ib qho tsis ruaj khov arc uas yuav tsis tswj hwm lub cev hlawv.
Oopoor fusion, qhov twg cov xov hlau melts tab sis tsis ua kom zoo nrog lub hauv paus hlau (feem ntau tshwm sim los ntawm cov roj oxide ntawm txhuas lossis xeb ntawm cov hlau).
◦Slag tias cov kab nrib pleb, nrog, los yog tsis npog Weld tusy (qhia txog flux {{0} {0} {0} {0} {0} {0} {0} {0}- cored xaim).
Lifespan los ntawm xaim hom
Yuav ntev npaum li cas cov hlau ntev ntev ua ntej mus tsis zoo nyob ntawm nws hom thiab cia:
• Cov hlau ntim steel: thaum khaws cia hauv cov thawv qhuav, kaw, zoo li ER70 11} {6) tuaj yeem siv tau rau 3-5 xyoos. Lawv yooj yim muaj pes tsawg leeg (tsis muaj flux) ua rau lawv resilient, tab sis xeb yog lub cim meej lawv tau ploj mus. Stainless hlau khoom siv xov hlau (piv txwv li, ER308) Ntev ntev-4-6 xyoo hauv kev ua tsaug rau lawv cov ntsiab lus Chromium, txawm tias ntsev raug cov ntsiab lus no rau 2-3 xyoos.
• Aluminium xov hlau: Aluminium xaim muaj lub sijhawm luv luv, feem ntau 2-3 xyoos. Txawm tias hauv kev kaw, cov ntawv oxide tuab tuab lub sijhawm dhau los, uas tsis tuaj yeem raug tshem tawm nrog kev ua kom huv. Yog tias cov xaim zoo li npub lossis tsis ua rau pub noj zoo, nws yuav tsis zoo.
• Flux - Cored xov hlau: Cov no yog qhov kev puas tsuaj tshaj plaws, kav ntev li 1-3 xyoos. Lawv cov hmoov nplej zoo sai, yog li ntawd luv luv ntawm chav ntxhua khaub ncaws (piv txwv li nyob ze cov chav ntxhua khaub ncaws lossis hauv qab daus uas tsis muaj kev nyab xeeb rau cov txheej txheem pov tseg tom qab 1-2 xyoo. Cov cim ntawm kev phem flux - Cored hlau suav nrog Porosity ntau dhau thiab ua ntsej muag slag.
Yuav ua li cas tiv thaiv vuam hlau los ntawm mus phem
Kev Cia Khoom Kom Zoo yog txoj kev zoo tshaj plaws kom txuas ntxiv lub neej hlau:
• Tswj cov av noo: Muab cov xov hlau nyob rau hauv ib qho chaw qhuav nrog av noo qis dua 50%. Siv cov thawv yas lossis ntim cov hnab yas ntim nrog cov hnab yas desiccant kom nqus dej noo {}} yuav tsum tsis txhob nyob hauv huab cua qhib.
• Zam kev haus paug: ua kom cov kav hlau tsis deb ntawm cov roj, tshuaj lom neeg, thiab ntsev. Stainless steel wires, in particular, should be stored separately from mild steel to prevent cross-contamination.​
• Tiv thaiv los ntawm kev puas tsuaj rau lub cev: khw spools upright (tsis yog pawg) los tiv thaiv Tangling, thiab lis lawv maj mam kom tsis txhob kinks. Siv cov xaim hluav taws xob sawv thaum siv cov roj ruaj khov.
• Tig cov Tshuag: daim ntawv lo nrog cov hnub yuav khoom thiab siv cov xaim qub ua ntej. Qhov no tiv thaiv cov xaim los ntawm kev zaum tsis siv rau xyoo, uas ua rau muaj kev pheej hmoo ntawm kev ua tsis raws cai.
• Bak blux - Cov xov hlau cored (yog tias xav tau) {} {1} Degree F (120-150 degree) rau 10-1 teev los evaporate noo noo. Txawm li cas los xij, qhov no yog kho ib ntus-} cov xov hlau tsis zoo (nrog rau grumpy flux) yuav tsum tau muab pov tseg.
Thaum twg los hloov cov hlau tsis zoo
Yog tias xaim qhia cov hauv qab no, nws yog lub sijhawm los hloov nws:
• Pom cov xeb xeb, oxidation hnyav, lossis lub cev puas (kinks, tangles).
• Porosity zoo sib xws, ci iab, lossis fusion fusion thaum lub sij hawm vuam, txawm tias tom qab kho cov chaw.
• Flux -} Cored hlau nrog clumpy lossis hardened flux, lossis slag uas yuav tsis tev huv.
• Txhuas hlau hlau nrog tuab, npub cov txheej oxide uas tsis tuaj yeem tshem tawm nrog xaim txhuam.
Siv cov hlau hluavtaws tsis zoo ua rau cov ntawv thov kev ntxhov siab uas tsis txaus ntshai nyob rau hauv cov ntawv thov kev ntxhov siab xws li load {{cov kabmob} Cov kabmob.
Xaus: vuam hlau degrades, tab sis kom saib xyuas kom zoo rau nws lub neej
Vuam hlau yuav tsis zoo, tab sis qhov no yog zam nrog kev cia khoom kom zoo. Ya dej noo, corrosion, thiab lub cev puas yog cov ua txhaum loj, nrog flux - cored cov xov hlau yog qhov yooj yim tshaj plaws. Los ntawm khaws cov xov hlau hauv qhuav, cov thawv ntim khoom, tiv thaiv lawv los ntawm cov kab mob tsis huv, thiab siv cov khoom qub ua ntej, welders tuaj yeem ua kom tiav lawv lifespan.
Tus Kakaw Kakawe: xaim uas zoo li lossis ua tsis tau zoo yog tsis muaj nqis siv. Kev nqis peev hauv ib lub xov tooj tshiab yog qhov pheej yig dua li kev kho tus weld tsis tiav lossis cuam tshuam nrog kev phom sij kev nyab xeeb. Nrog saib xyuas, feem ntau vuam hlau yuav tau ntseeg ntau rau xyoo- tab sis paub txog txhua tus weld muaj zog thiab zoo ib yam.