Ga siwo wotsɔ zinc wɔe wɔwɔ nye kuxi si bɔ ŋutɔ le adzɔnuwo wɔwɔ ƒe dɔwɔƒewo katã. Welding ƒe dɔwɔwɔ Galvanized Steel ate ŋu adzɔ keŋkeŋ. Gake esia wɔwɔ ɖoɖo nyui manɔmee la, egblẽa nu le xɔa ƒe xɔtuɖoɖo ƒe blibonyenye kple dɔwɔƒea ƒe dedienɔnɔ siaa ŋu vevie. Welders dzea ŋgɔ nuwo ƒe kadodo sesẽ siawo gbesiagbe. Wogblɔe ɖi be ne wowɔ nu ɖe dɔwɔnu si ŋu zinc le ŋu abe carbon gakpo ƒuƒlu ene pɛpɛpɛ la, ana woado kpo xɔtuɖaŋuwo me dzodzro. Ehea xɔxlɔ̃ kabakaba si womate ŋu aƒo asa na o hã vɛ le Dzoxɔxɔ ƒe Nuto (HAZ) me. Gakpe ɖe eŋu la, zinc ƒe dzobibi naa fiasewo ƒe anyigba ƒe nɔnɔme siwo me afɔku le ŋutɔ. Ga ƒe dzudzɔ si me aɖi le nye agbanɔamedzi gã aɖe na adzɔnuwɔƒe ɖesiaɖe. Míenaa ɖoɖo si me kɔ, si wotu ɖe kpeɖodziwo dzi, si dzi woato ada ɣeyiɣi si woatsɔ aƒo nu siawo nyuie kple alesi woawɔe nyuie. Àsrɔ̃ mɔnu nyui siwo dzi nàto aɖe gaŋutiɖoɖo ƒe gbɔdzɔgbɔdzɔ sesẽwo dzi akpɔtɔ ahakpɔ wò ƒuƒoƒoa ta. Míeƒoa nu tso sedziwɔwɔ ƒe dzidzenu sesẽ siwo hiã be woalé ɣeyiɣi didi ƒe xɔtuɖaŋu me ɖe asi le wò xɔ mamlɛawo me hã ŋu.
Nu Vevi Siwo Wotsɔna Yia Nu
Alesi wòate ŋu adzɔe: Woate ŋu atsɔ ga si wotsɔ galvanized awɔ gae, ne woɖe zinc si wotsɔ blae la ɖa keŋkeŋ le afisi wotsɔ ga ƒoe ɖo hafi ƒo akasa nu.
Mɔxexe Ðe Gblẽƒewo Nu: Ne womeɖe zinc ɖa o la, ehea weld porosity, inclusions, kple intergranular cracking sesẽ vɛ le vovototo gã si le zinc kple gakpo dome ƒe dzoxɔxɔ ƒe teƒewo ta.
Dedienɔnɔ ƒe Vevienyenye: Zinc si wotsɔ ya ƒoe la naa dzudzɔ si me aɖi le ŋutɔ. PPE kple yaƒoƒo nyuie nye se kple lãmesẽnyawo ƒe nudidi siwo ŋu womate ŋu awɔ ɖoɖo ɖo o.
Post-Weld Compliance: Welding gblẽa zinc si kpɔa ame ta la dome; ewɔwɔ dzidzedzetɔe bia be woagbugbɔ aɖoe le weld megbe le ɖekawɔwɔ me pɛpɛpɛ kple ASTM A 780 ƒe dzidzenuwo.
Gaŋutinunya ƒe Nyateƒenya si le Welding Galvanized Steel ŋu
Dodokpɔ ƒe dzɔdzɔmeŋusẽŋununya gɔmesesee nye gɔmeɖoanyi na nuwɔwɔ dedie. Zinc ƒoa dzo eye wòzua ya le dzoxɔxɔ si ade 420°C (900°F) me. Gake gakpo ya ƒuna le dzoxɔxɔ si ade 1500°C (2700°F) me. Dzoxɔxɔ ƒe vovototo gã siae hea mɔ̃ɖaŋununya ƒe kuxi vevitɔ vɛ. Ðeko màte ŋu alɔ ga eveawo siaa le ɣeyiɣi ɖeka me le mɔ si li ke nu o.
Ne wotsɔ ga ƒo zinc la tẽ la, ewɔa ya enumake le akasa nu. Eva gena ɖe gakpo si wotsɔ ƒo tsii la me esime tsiʋea le sesẽm kabakaba. Gas sia si xaxa la hea ʋuʋudedi geɖe vɛ. Ehea nusiwo wotsɔ dea eme kple fusion ƒe anyimanɔmanɔ si me afɔku le hã vɛ. Weld si me gas kotokuwo yɔ fũu mate ŋu atsɔ xɔtuɖaŋu ƒe agba kpekpewo o.
Adzɔhawo ƒe nyatakakawo ɖe mɔ si me kɔ si dzi woato ayi ŋgɔe na xɔtuɖaŋu ƒe blibonyenye fia. Ne wodzrae ɖo nyuie to zinc la ɖeɖeɖa keŋkeŋ me la, ɖeɖiteameŋu ƒe ŋusẽa nɔa anyi. Alesi ƒunukpeƒe dzadzɛa ƒe gbagbã sesẽe la sɔ kple gakpo si ŋu womefa nu ɖo o. Mèbu mɔ̃a ƒe dɔwɔwɔ ne èwɔ ɖe dzadzraɖo ƒe ɖoɖo sesẽwo dzi o.
Zinc ƒe gege ɖe eme ƒe gbagbã gakpɔtɔ nye afɔku gã aɖe le ewɔwɔ me. Zinc si me tsi le ate ŋu age ɖe gakpo sesẽ si ŋu nuteɖeamedzi le ƒe nukuwo ƒe liƒowo me. Míetsia tre ɖe mɔ̃ɖaŋukuxi sia koŋ ŋu to elektrikŋusẽnamɔ̃ siwo me silicon alo rutile mesɔ gbɔ ɖo o zazã me. Na silicon ƒe agbɔsɔsɔme nanɔ 0.2 Si te be nàɖe afɔku siawo siwo le gbagbãƒe dzi akpɔtɔ nyuie.
Nuwo ƒe Nɔnɔme |
Weld Porosity ƒe Afɔku |
Afɔku si le Cracking Nu |
Dɔwɔɖoɖo ƒe Fɔmaɖimaɖi si Do Tso Eme |
Ga si Wotsɔ Karbon Wɔe |
Bᴐbᴐ |
Bᴐbᴐ |
Gɔmedzedze ƒe Dzidzenu |
Zinc-nutsitike si womedzra ɖo o |
Kɔkɔ Kɔkɔetɔ Kekeake |
Kɔkɔe (Zinc ƒe gege ɖe lãme na ame) . |
Wogblẽ nu le eŋu vevie |
Ƒunukpeƒe si Woɖe Ðe Go Nyuie |
Bᴐbᴐ |
Low (wozã <0.2 Si Electrode) . |
Esɔ kple Gɔmedzedze |
Lãmesẽ, Dedienɔnɔ, Kple Sedziwɔwɔ Ŋuti Ðoɖo Siwo Womate Ŋu Adzro O
Zinc oxide ƒe dzudzɔ gbɔgbɔ hea lãmesẽkuxi sesẽwo vɛ enumake. Dɔwɔla siwo do go zinc si me ya le la xɔa Metal Fume Fever enuenu. Wokpɔa dzesi sesẽ siwo ɖi dzamezã le dɔlélea xɔxɔ vɔ megbe kpuie. Dzesi siawo dometɔ aɖewoe nye lãmetutudɔ sesẽ, vuvɔ, dzoxɔxɔ sesẽ, kple lãmekawo ƒe veve sesẽ. Dɔléle siawo siwo dona kpata la ɖea dɔwɔla bibiwo ɖa eye wòhea dɔwɔƒe ƒe fe gãwo vɛ.
Nublanuitɔe la, fiase geɖe gakpɔtɔ ɖoa ŋu ɖe dɔwɔƒe ŋuti glitoto siwo me afɔku le ŋu. Welder aɖewo xɔe se vavã be notsi nono xea mɔ na aɖi si le ga kpekpewo me. Ele be míakpɔ fiase me nyaʋiʋli sia si me afɔku le gbɔ eye míagbee enumake. Notsi metsyɔa lãkusiwo dzi alo tɔa te ga ƒe xɔxlɔ̃ le nɔnɔme aɖeke me o. Nuɖuɖu aɖeke kura meli si woatsɔ aɖɔli mɔ̃ɖaŋudɔwɔwɔ nyuie o.
Dedienɔnɔ ƒe gɔmeɖoanyi siwo wòle be woawɔ la kpɔa wò dɔwɔlawo ta tso nusiwo agblẽ le wo ŋu tegbee me. Ele be nàwɔ gbɔgbɔtsixe kple nutome takpɔkpɔ sesẽwo ŋudɔ.
De yaƒoƒomɔ̃ siwo léa ya si tsoa wo me si le dɔ wɔm be woahe dzudzɔ ɖa le gbɔgbɔƒea.
Zã nuto siwo me yame le alo afisiwo ya ƒona le le afisiafi si wòanya wɔ le ŋutɔŋutɔ.
De se na P100 (HEPA) afã-mask be woaɖe nu suesuesue siwo me afɔku le nyuie.
De Powered Air-Purifying Respirators (PAPR) na dɔwɔla siwo katã le dɔ wɔm le teƒe siwo wotu.
Do Ŋgɔ Na Weld ƒe Anyigba Dzadzraɖo: Nusi Tsia Nya Me le Nyonyome Ŋu
AWS D-19.0 ƒe dzidzenuwo naa ɖoɖo sesẽwo ƒe gɔmedzedze hena dzadzraɖo. Wogblɔna be woaɖe zinc si wotsɔ blae la ɖa wòadidi sentimeta 2.5 va ɖo 10 tso afisi wotsɔ ga ƒoe ɖo. Ele be nàwɔ ʋuʋu sia le ƒunukpeƒea ƒe akpa eveawo hafi aƒo akasanu. Ne èdzo le afɔɖeɖe sia dzi la, kakaɖedzi li be woado kpo nu.
Adzɔnuwɔla geɖe ŋea aɖaba ƒua nudidi si nye be woakɔ ƒunukpeƒea ƒe megbe dzi keŋkeŋ. Míeyɔa esia be ŋɔdzinu ɣaɣla. Dzoxɔxɔ ƒe tsɔtsɔ yi teƒe bubu nana zinc si le megbe la zua ya kabakaba le welding-dɔwɔwɔ me. Dzoxɔxɔ ƒe ʋukawo ƒe dɔwɔwɔ sia hea ya si me aɖi le kple ɖinuwo yia weld la ƒe ke me tẽ. Ele be nàkɔ akpa ɖesiaɖe si dzoxɔxɔ sesẽ le la ŋu.
Zi geɖe la, dɔwɔlawo tiaa mɔ̃wo kple atikewo ɖeɖeɖa ƒe mɔnuwo dometɔ ɖeka.
Mɔ̃ɖaŋununya Ðeɖe: Esia tsi tre ɖi na dɔwɔƒea ƒe nuwɔna nyuitɔ kekeake na fiase akpa gãtɔ. Zã hard grinding discs alo abrasive flap wheels be nàkpɔ gakpo si le keklẽm eye wòle ƒuƒlu. Kpɔ egbɔ be yeɖe zinc si wotsɔ ƒo ƒui la katã ɖa, ke menye eƒe akpa si me mekɔ o la ɖeɖeko o.
Atikewo Ðeɖeɖa: Àte ŋu azã muriatic acid atsɔ aɖe atikewo ɖa le teƒe aɖewo koŋ. Gake mɔnu sia bia be woawɔ atikewo pɛpɛpɛ bliboe. Ele be nàzã soda atsɔ awɔ abolomegba la ŋudɔ vevie. Mlɔeba la, tsɔ ga la ƒu gbe nyuie be wòaxe mɔ na haidrodzin ƒe gbagbã si gblẽa nu le eŋu.
Tiatia Nyui Welding Dɔwɔwɔ kple Parameters
Dɔwɔwɔ vovovowo bia be woawɔ ɖoɖo siwo le tẽ ŋutɔ. Ne ètrɔ asi le wò mɔnu ŋu la, xea mɔ na tsi si sina fũu akpa eye wònana wògena ɖe eme goglo.
MIG Welding (GMAW) wɔa dɔ abe tiatia nyuitɔ kekeake na nusiwo le tsɛ wu abe a gakpo si wotsɔ galvanized wɔe . Parameter ƒe asitɔtrɔ tɔxɛwo hiã vevie le afisia. Dɔdzikpɔlawo hiã mɔzɔzɔ ƒe duƒuƒu si bɔbɔ vie wu esi wozãna na gakpo ƒuƒlu. Duƒuƒu blewu nana zinc si susɔ la dzona le tsiʋea ŋgɔ. Elektrikŋusẽa dzi ɖeɖe kpɔtɔ kpena ɖe ame ŋu wòtoa zinc sue ɖesiaɖe si susɔ si susɔ ɖe anyigba dzi la me. Zã Argon/CO2 gas tsakatsakawo nàtsɔ ana akasanua nali ke eye nàɖe dzodzo ƒe tsidzadza dzi akpɔtɔ kura.
Stick Welding (SMAW) gakpɔtɔ nye mɔnu si wodi wu na xɔtuɖaŋu ƒe akpa siwo le kpekpem. Mɔ̃ɖaŋununya ƒe tɔtrɔ le vevie ŋutɔ hafi woate ŋu awu wo dzidzedzetɔe. Ele be dɔwɔlawo naɖoe koŋ aɖe woƒe mɔzɔzɔ ƒe duƒuƒu dzi akpɔtɔ. Ele be woatrɔ elektrikŋusẽnamɔ̃a ƒe dzogoe wòaɖiɖi va ɖo abe dzidzenu 30 ene. 'ƒoƒo ƒe afɔɖeɖe' si le ɣeyiɣi ƒe didime nu zazã tua zinc si le yaƒoƒo me yia ŋgɔ eye wòdoa go le weld mɔa dzi. E7018 low-hydrogen electrodes subɔna abe dzidzenu tiatia na dɔ sesẽ-dɔ sia.
TIG Welding (GTAW) hea dɔwɔwɔ ƒe kuxi gãwo vɛ. Míeɖea dzi le mɔnu sia ƒo vevie na akpa siwo ŋu wowɔ atike ɖo. GTAW ƒe ɖoɖoa sea veve ɖe gotagome ɖiƒoƒo nu akpa. Zinc si wotsɔ ya ƒoe agblẽ tungsten ƒe elektrikŋusẽnamɔ̃a enumake. Egblẽa gas-kpoxɔnua me eye wògblẽa dzonu si me ɖi le ŋutɔ ɖi.
Welding ƒe Dɔwɔna |
Nusiwo Sɔ le Bliboe |
Nusiwo Wozãna Ŋuti Nyatakaka Nyuitɔ Kekeake |
Asitɔtrɔ le Parameter Veviwo Ŋu |
MIG (GMAW) ƒe . |
Kɔ |
Ga Gbadzɛ Tsɛ aɖe |
Duƒuƒu si bɔbɔ ɖe anyi, elektrikŋusẽ si lolo wu, Argon/CO2 tsakatsaka |
Ati (SMAW) . |
Kɔ |
Ga si Wotsɔ Xɔa Xɔtuɖaŋu si le Kɔkɔe |
30-degree dzogoe, ƒoƒo ƒe afɔɖeɖe, E7018 elektrikŋusẽnamɔ̃ |
TIG (GTAW) ƒe . |
Ebɔbɔ ŋutɔ |
Womekafui o |
Dzi ɖe le eƒo ŋutɔ le tungsten ƒe ɖiƒoƒo kabakaba ta |
Weld Gbugbɔgaɖɔɖo Kple Agbenɔƒe Takpɔkpɔ
Dzoxɔxɔ sesẽ ɖea nusiwo tsia dzoxɔxɔ nu ɖa le ga si ƒo xlãe ŋu tegbee. Míeyɔa esia be Dzoxɔxɔ ƒe Nuto (HAZ) ƒe kuxi. Dzoxɔxɔ ƒe nugbegblẽ sia nana teƒe si woƒo ƒu yeyee la te ŋu xɔa gbeɖuɖɔ bɔbɔe enumake. Ne womede nu nyaa me o la, galvanic cell dzɔna. Lãmenugbagbevi sia nana gakpo ƒuƒlu si ƒo xlãe la gblẽna kabakaba.
Ele be nàgblɔ dɔwɔwɔ ƒe ɖoɖo si sɔ hena ƒunukpeƒea gbugbɔgaɖɔɖo. ASTM A 780 dzi wɔwɔ pɛpɛpɛ xea mɔ na oxidation kaba. Ne wowɔ ɖe ɖoɖo sia dzi la, ekpɔa egbɔ be kpekpea ɖo eƒe agbenɔƒe si ŋu wotrɔ asi le gbɔ.
Adzɔhawo ƒe dzidzenuwo de dzesi nuwo gbugbɔgaɖɔɖomɔnu geɖe siwo wɔa dɔ ŋutɔ.
Amadede tɔxɛ siwo me zinc sɔ gbɔ ɖo sisi ɖe ga ƒuƒlu la ŋu. Ele be zinc dzadzɛ 95% ya teti nanɔ dɔwɔƒewo ƒe nutsyɔnu siawo me le film ƒuƒua me.
Zinc-based soldering alloys zazã atsɔ alɔ mɔxenu yeye si kpɔa ame ta ɖe gakpo ƒuƒlu la dzi.
Dzoxɔxɔ ƒe atike si wotsɔna ƒua gbe, si woyɔna hã be metallizing, hena asitsatsa kple dɔwɔƒewo ƒe dɔ sesẽwo wɔwɔ.
Dzra asisiwo ƒe mɔkpɔkpɔwo dzi le ewɔwɔ ƒe ɖoɖoa ƒe gɔmedzedze. Teƒe siwo wodzra ɖo la aɖe atsyɔ̃ɖoɖo ƒe amadede ƒe masɔmasɔ si dze ƒã afia le gɔmedzedzea me. Zi geɖe la, wodzena klosalo si klẽna le megbe si ƒe amadede nye aŋutiɖiɖi si me kɔ wu. Woatrɔ ɖe yame ƒe nɔnɔme ŋu le dzɔdzɔme nu eye woawɔ oxidation be woasɔ kple alesi wowɔe le gɔmedzedzea me le ɣeyiɣi aɖe megbe.
Fabrication Mɔnu Bubuwo Me Dzodzro hena ROI Nyuitɔ
Nutunu, aŋɔsisi tɔxɛ, kple asikaka eŋu le weld megbe hea dɔwɔlawo ƒe gazazã gãwo vɛ. Wohea dɔwɔwɔ ƒe mɔxenu siwo tea ɖeɖi ame ŋu hã vɛ. Ele be asitsalagãwo nada asɔ nenye be gɔmesese le ga si wotsɔ ƒo gae do ŋgɔ ŋu le ganyawo gome hã. Ɣeaɖewoɣi la, mɔnu bubuwo naa Gakpɔkpɔ tso Gadede Asi me si lolo wu sã.
Le nuwo wɔwɔ sesẽ gome la, da ROI si le dɔwɔwɔ ƒe ɖoɖowɔwɔ ɖe ɖoɖo nu me kpɔ nyuie. Bu eŋu kpɔ be yeatsɔ gakpo ƒuƒu siwo womefa o awɔ wò kpekpeawo katã gbã. Emegbe àte ŋu aɖo kpekpe si wowu enu, si wotsɔ ga ƒoe bliboe la ɖe gota be woatsɔ dzoxɔxɔ aƒo galvanizing. Nusiwo kplɔ wo nɔewo ɖo sia ɖea nu tutu ɖa, etɔa dzudzɔ si me afɔku le, eye wònaa ametakpɔnu si yia edzi ɖaa.
Bu mɔ̃ɖaŋununya ƒe ƒunukpeƒewo ŋu na mɔ̃ siwo wotsɔ gaviwo blae tsɔ wu be woatsɔ aƒo ka na wo. Mɔnu bubu sia ɖea zinc ƒe dzudzɔ si me aɖi le ɖa keŋkeŋ le wò fiase me. Eɖea HAZ gbugbɔgaɖɔɖo kple gbɔgbɔtsixe ƒe dɔwɔnu xɔasiwo hã ɖa.
Adzɔnuwo wɔwɔ le agbɔsɔsɔ gã me si me xɔtuɖaŋu ƒe nudidi aɖeke mele o ɖea vi tso nusiwo wotsɔ wɔa nu xoxowo ƒeƒle si me nunya le wu me. Sourcing yi edzi zi geɖe la, gakpo si wotsɔ galvanized wɔe hena agbalẽ xatsaxatsa wɔwɔ alo stamping la ɖenɛ fiana be ga mexɔa ga geɖe o. Nusiwo wotsɔ blaa nu ɖe akpa vovovowo ŋu gblẽa ɣeyiɣi kple ga gbogbo aɖe ne coil xoxoa wɔ ɖeka kple wò nɔnɔme siwo tututu nèdi. Stamping pre-coated coils naa ewɔwɔ ƒe ɖoɖowɔɖiwo kabakaba ŋutɔ.
Nyanuwuwuw
Ga si wotsɔ zinc wɔe wɔwɔ bia be woawɔ mɔnu si me woɖɔa ŋu ɖo, si ƒe ɖoɖo deŋgɔ. Ne èwɔ ɖe dzadzraɖo ɖe anyigba ŋu nyuie dzi ko hafi nu siawo ƒoƒo nye nuwɔna si le dedie eye wòsɔ le xɔtuɖaŋu gome. Ele be nàwɔ welding parameters siwo wowɔ ɖe ɖoɖo nu ŋudɔ eye nàzi seawo dzi be nàgbugbɔ awɔe le weld megbe. Mɔ kpuiwo zazã kple dzadzraɖo agblẽ nu le atike mamlɛtɔ kple wò dɔwɔlawo ƒe lãmesẽ siaa ŋu si wogblɔ ɖi.
Ele be nyametsotsowɔlawo naɖe afɔ siwo kplɔe ɖo enumake, siwo wotu ɖe afɔɖeɖe dzi. Míeɖo aɖaŋu be nàlé ŋku ɖe wò fiase-nutome SOP siwo li fifia ŋu be nàkpɔ egbɔ be wowɔ ɖeka kple AWS kple ASTM ƒe dzidzenuwo pɛpɛpɛ. Dzro wò PPE ƒe nudzraɖoƒewo me egbea be nàkpɔe ɖa be P100 ƒe ʋuʋudedi kple yaƒoƒomɔ̃ siwo le dɔ wɔm le asiwò hã. Mlɔeba la, wɔ gazazã kple viɖe ŋuti numekuku tsitotsito tsɔ tsɔ dɔwɔwɔ siwo wowɔ do ŋgɔ na galvanizing sɔ kple dɔwɔwɔ siwo wowɔ le galvanizing megbe. Ne èwɔ ɖoɖo sia koŋ ŋu dɔ nyuie wu la, ana wò dɔwɔwɔ nanyo ɖe edzi eye wòakpɔ wò ga si nèkpɔna ta.
Nyabiasewo ƒe Nyabiasewo
Q: Àte ŋu atsɔ gakpo falɛfalɛ awɔ gakpo si wotsɔ galvanized wɔea?
A: Ẽ, gake ele kokoko be woaɖe dɔwɔnu si wotsɔ galvanized wɔe la agbugbɔe wòazu gakpo falɛfalɛ ƒuƒlu le teƒe si wodoe ɖo. Ele be woagblẽ dometsotso suewo ɖi be zinc gas susɔe ɖesiaɖe si tso HAZ me nado le eme evɔ mahe ʋuʋudedi vɛ o.
Q: Ðe wòle dedie be woatsɔ ga si wotsɔ galvanized awɔ gae le gotaa?
A: Gaƒoƒo le gota nana yaƒoƒo nyona ɖe edzi ŋutɔ gake meɖea afɔkua ɖa o. Ele kokoko be dɔwɔlawo nado yagbɔgbɔmɔ̃ siwo ƒe dzeside nye P100 eye woatutu zinc la ɖa.
Q: Nukae dzɔna ne metsɔ ga ƒo zinc dzi evɔ nyemetutui o?
A: Weld la akpe fu le porosity sesẽ (gas bubbles siwo xa) kple fusion ƒe anyimanɔmanɔ ta, si ana eƒe wɔwɔme mesɔ o eye wòte ŋu doa kpo nu bɔbɔe ŋutɔ le agba te.
