Fahimtar Tushen Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙirar Hydrogen Stick Electrodes

Sanin asali game da E7018 low-hydrogen stick electrodes zai iya taimakawa wajen fahimtar yadda za a kara girman aikin su, aikin su da kuma walda da za su iya samarwa.

Waldawar sanda ya kasance mabuɗin don ayyuka masu yawa na walda, a wani ɓangare saboda kayan da ake amfani da su a aikace-aikace da yawa suna ci gaba da ba da kansu ga tsarin, kuma wanda yawancin masu aikin walda suka sani sosai.Idan ya zo ga sandar walda, American Welding Society (AWS; Miami, FL) E7018 igiyoyin wutan lantarki zaɓi ne na kowa saboda suna samar da ingantattun kayan inji da sinadarai don aikace-aikace iri-iri, tare da ƙananan matakan hydrogen don taimakawa hana fashewar hydrogen. .

Sanin asali game da E7018 low-hydrogen stick electrodes na iya taimakawa wajen fahimtar aikin su, aiki, da sakamakon walda.A matsayinka na gaba ɗaya, na'urorin lantarki na E7018 suna ba da ƙananan matakan spatter da santsi, barga, da baka mai shiru.Waɗannan halayen ƙarfe na filler suna ba wa mai aikin walda kyakkyawan iko akan baka kuma rage buƙatar tsaftacewa bayan walda - duka mahimman abubuwan da ke cikin aikace-aikacen da ke buƙatar kulawa da hankali ga ingancin walda da shigarwar zafi, da waɗanda ke kan ƙayyadaddun ƙayyadaddun lokaci.

Wadannan na'urorin lantarki suna ba da ƙima mai kyau da kuma shigar da kyau, wanda ke nufin masu aikin walda zasu iya ƙara ƙarin ƙarfe a cikin haɗin gwiwa a cikin wani lokaci da aka ba fiye da sauran igiyoyi masu yawa (kamar E6010 ko E6011), kuma har yanzu suna iya guje wa lahani na walda kamar rashin haɗuwa. .Ƙarin abubuwa kamar foda baƙin ƙarfe, manganese, da silicon zuwa waɗannan lantarki suna ba da fa'idodi daban-daban, gami da (amma ba'a iyakance ga) ikon samun nasarar walda ta wasu datti, tarkace, ko ma'aunin niƙa ba.

Kyakkyawan farawa da sake farawa, wanda ke taimakawa kawar da batutuwa kamar porosity a farkon weld, ƙarin fa'ida ne na igiyoyin igiya na E7018.Don kyakkyawan ƙuntatawa (farawa da arc sake), ya zama dole a fara cire ajiyar silicon da ke samuwa a ƙarshen lantarki.Yana da mahimmanci, duk da haka, don tabbatar da duk buƙatun kafin waldawa, tunda wasu lambobi ko hanyoyin ba sa ba da izinin ƙuntata igiyoyin lantarki.

Kamar yadda aka gani a cikin rarrabuwar AWS ɗin su, E7018 igiyoyin wutan lantarki suna ba da ƙaramin ƙarfi na 70,000 psi (wanda aka tsara ta “70”) kuma ana iya amfani da su a duk wuraren walda (wanda aka tsara ta “1”).The "8" yana nufin ƙananan-hydrogen shafi, kazalika da matsakaicin shigar azzakari cikin farji da lantarki bayar da na yanzu iri da ake bukata domin aiki.Tare da daidaitaccen rarrabuwar AWS, E7018 igiyoyin lantarki na iya samun ƙarin masu ƙira kamar “H4” da “H8” waɗanda ke nuni ga adadin hydrogen mai ɗimbin yawa na adibas ɗin ƙarfe na filler a cikin walda.Ƙididdigar H4, alal misali, yana nuna ajiyar walda yana da 4 ml ko ƙasa da haka na hydrogen mai yaduwa a cikin 100 g na ƙarfe na weld.

Electrodes tare da mai tsara “R” - irin su E7018 H4R - an yi gwaji na musamman kuma masana'anta sun yi la'akari da rashin juriya.Don samun wannan ƙididdiga, samfurin dole ne ya tsayayya da danshi a cikin kewayon da aka ba shi bayan an fallasa shi zuwa zafin jiki na 80 F da 80 na dangi zafi na sa'o'i tara.

A ƙarshe, yin amfani da “-1” akan rarrabuwar igiyoyin lantarki na sanda (misali E7018-1) yana nufin samfurin yana ba da ingantaccen tasiri mai ƙarfi don taimakawa tsayayya da fatattaka a cikin aikace-aikace masu mahimmanci ko a ƙananan yanayin zafi.

E7018 low-hydrogen stick electrodes iya aiki tare da m halin yanzu (CC) tushen wutan lantarki wanda ya ba da ko dai alternating current (AC) ko kai tsaye halin yanzu lantarki tabbatacce (DCEP).E7018 filler karafa suna da ƙarin arc stabilizers da / ko baƙin ƙarfe foda a cikin shafi don taimakawa kula da barga baka lokacin walda ta amfani da AC halin yanzu.Babban fa'idar amfani da AC tare da na'urorin lantarki na E7018 shine kawar da bugun baka, wanda zai iya faruwa lokacin waldawar DC ta amfani da ƙasa mara inganci ko lokacin walda sassan magnetized.Duk da samun ƙarin na'urori masu ƙarfafa baka, walda da aka yi ta amfani da AC na iya zama ba su yi laushi kamar waɗanda aka yi da DC ba, duk da haka, saboda ci gaba da sauye-sauyen da ake ci gaba da yi a halin yanzu da ke faruwa har sau 120 a sakan daya.

Lokacin waldawa tare da halin yanzu na DCEP, waɗannan na'urori na lantarki zasu iya samar da sauƙin sarrafa baka da kuma ƙwanƙwasa walda mai ban sha'awa, tun da yake alƙawarin gudana na yanzu yana dawwama.Don kyakkyawan sakamako, bi shawarwarin masana'anta don sigogin aiki don diamita na lantarki.

Kamar kowane tsari da lantarki, dabarar da ta dace lokacin yin walda tare da igiyoyin igiya na E7018 yana da mahimmanci don tabbatar da ingancin walda mai kyau.Rike tsayin baka mai tsayi - da kyau a ajiye wutar lantarki a saman kududdufin walda - don kula da tsayayyen baka da rage damar da za a iya samu.

Lokacin waldawa a cikin lebur da wurare a kwance, nuna/jawo wutar lantarki 5 deg zuwa 15 deg daga alkiblar tafiya don taimakawa wajen rage damar tarko slag a cikin walda.Lokacin waldawa a tsaye sama, nunawa/tura wutar lantarki zuwa sama 3 deg zuwa 5 deg yayin tafiya zuwa sama, kuma yi amfani da dabarar saƙa kaɗan don taimakawa hana walda daga sagging.Faɗin ƙuƙumma ya kamata ya zama sau biyu da rabi na diamita na ainihin waya na lantarki don walƙiya mai fa'ida da kwance, da biyu da rabi zuwa sau uku na ainihin diamita na walda a tsaye.

E7018 sandar lantarki yawanci jigilar kaya daga masana'anta a cikin kunshin da aka rufe ta hanyar hermetically don kare su daga lalacewar danshi da ɗauka.Yana da mahimmanci a kiyaye wannan fakitin daidai kuma a adana shi a wuri mai tsabta mai bushewa har sai an shirya samfuran don amfani.Da zarar an buɗe, ya kamata a yi amfani da na'urorin lantarki na sanda da tsabta, busassun safar hannu don hana ƙazanta da tarkace daga manne da sutura da kuma kawar da damar da za a iya ɗaukar danshi.Hakanan ya kamata a riƙe na'urorin lantarki a cikin tanda a yanayin zafi da masana'anta suka ba da shawarar bayan an buɗe su.

Wasu lambobi suna yin bayanin tsawon lokacin da na'urar lantarki za ta kasance a waje da marufi da aka rufe ko tanda kuma idan ko sau nawa za'a iya gyara ƙarfen filler (watau ta hanyar yin burodi na musamman don cire danshi) kafin a jefar da su.Koyaushe tuntuɓi takamaiman ƙayyadaddun bayanai da lambobi don buƙatun kowane aiki.


Lokacin aikawa: Dec-23-2022