Menenejuyi-core baka waldi?
Weld ɗin baka mai walƙiya hanyar walƙiya hanya ce ta walƙiya wacce ke amfani da baka tsakanin waya mai jujjuyawa da kayan aiki don zafi, kuma sunan Ingilishi kawai FCAW ne.A karkashin aikin baka zafi, walda waya karfe da workpiece suna da alaka da narkewa, forming wani weld pool, baka gaba bayan crystallization na weld pool wutsiya.
Mene ne waya mai jujjuyawa?Menene halayen harsashi?
Wayar walda ta Flux-Cored wata nau'in waya ce ta waldawa ta hanyar mirgina bakin bakin karfe cikin bututun karfe ko bututun karfe na musamman, cike bututun da wasu abubuwan foda, da zane.A abun da ke ciki na foda core ne kama da cewa na lantarki shafi, wanda aka yafi hada da baka stabilizing wakili, slag forming wakili, gas kafa wakili, alloying wakili, deoxidizing wakili, da dai sauransu.
Menene rawar juzu'i a cikin waya mai juyi?
Matsayin juzu'i yayi kama da na murfin lantarki, kuma akwai galibi iri iri.
① Tasirin kariya na wasu abubuwan da aka gyara a cikin lalatawar walda, wasu narkewa!Rushewar ruwan walda yana sakin iskar gas, wanda ke ba da wasu ko mafi yawan kariya.Ruwan da aka narkar da shi yana samar da narkakkar tufa, wanda ke rufe saman ɗigon ruwa da narkakken tafkin, kuma ƙarfen ruwa yana kare shi.
② Arc stabilizer a cikin harsashi na arc stabilizer na iya daidaita baka da rage yawan spatter.
③ Aiwatar da aikin Wasu daga cikin abubuwan gami da ke cikin ainihin suna iya haɗa walda.
④ Deoxidation gami abubuwa na slag iya amsa tare da ruwa karafa.Inganta abun da ke ciki na weld karfe, inganta inji Properties.
Bugu da kari, da slag da aka rufe kuma iya rage sanyaya kudi na narkakkar pool, tsawanta wanzuwar lokacin narkakkar pool, wanda yake da amfani don rage abun ciki na cutarwa gas a cikin walda da kuma hana porosity.
Wadanne nau'ikan walda na baka mai juye-juye ne akwai?
Akwai nau'i biyu na waldawar waya mai jujjuyawa (FCAW-G) da walƙiyar kariyar kai (FCAW-S), dangane da ko ana amfani da iskar kariya ta waje ko a'a.
Wayar da aka yi garkuwa da iskar gas na waya mai raɗaɗi yawanci tana amfani da carbon dioxide ko carbon dioxide da argon a matsayin iskar kariya, kuma juzu'in da ke cikin waya yana ɗauke da ɗan ƙaramin gas.Wannan hanya tana kama da na gama-gari na walda mai kariya.Walda mai kariyar kai baya buƙatar iskar kariya ta waje.Akwai adadi mai yawa na gasifier a cikin jujjuyawar, kuma ana amfani da iskar gas da slag da aka lalata ta gasifier don kariya.
Menene fa'idodin walda mai-cored arc?
Welding-cored arc waldi yana da fa'idodi masu zuwa.
(1) High waldi yawan aiki high narkewa yadda ya dace (har zuwa 85% ~ 90%), sauri narkewa gudun;Domin lebur waldi, shafi gudun ne sau 1.5 na manual baka waldi, kuma ga sauran waldi matsayi, shi ne 3-5 sau na manual baka waldi.
② Ƙaramin fantsama, walda mai ƙira mai kyau na ƙwanƙwaran ƙwayar cuta wanda aka ƙara arc stabilizer, don haka kwanciyar hankali, ƙaramin fantsama, ƙirar walda mai kyau.Domin tafkin narkakkar yana lullube da narkakkar tukwane, siffar fuskar walda ta fi na walda ta carbon dioxide sosai.
(3) Babban ingancin walda Saboda iskar gas ɗin da aka haɗe kariyar, zai iya hana iskar gas mai cutarwa shiga yankin walda.Bugu da kari, wanzuwar lokacin narkakken tafkin yana da tsayi, wanda ke haifar da hazo gas, don haka weld ɗin yana da ƙarancin abun ciki na hydrogen da juriya mai kyau.
(4) Ƙarfafawa mai ƙarfi kawai yana buƙatar daidaita abun da ke ciki na ƙirar waya mai siyar, yana iya saduwa da buƙatun ƙarfe daban-daban akan abun da ke cikin walda.
Menene rashin lahani na walda mai-cored arc?
Matsalolin walda na baka mai juyi sune kamar haka.
Idan aka kwatanta da walda mai kariya na gas, farashin waldawar waya ya fi girma kuma tsarin masana'anta yana da rikitarwa.
② Ciyarwar waya yana da wahala, wajibi ne a yi amfani da injin ciyar da waya wanda za'a iya daidaita matsa lamba daidai.
③ Harsashi yana da sauƙin sha danshi, don haka ya zama dole a kiyaye wayar walda sosai.
④ Ana buƙatar cire slag bayan walda.
⑤ Ana samun ƙarin hayaki da iskar gas mai cutarwa a cikin aikin walda, don haka ya kamata a ƙarfafa samun iska.
Wane iskar gas mai karewa ne aka saba amfani da shi a waldawar baka mai juyi?Menene halayen kowannensu?
Flux cored arc walda yawanci yana amfani da iskar carbon dioxide mai tsafta ko carbon dioxide da iskar argon a matsayin iskar kariya.Nau'in gas ɗin yana buƙatar zaɓar nau'in iskar gas gwargwadon wayar da aka yi amfani da ita.
Argon yana da sauƙin ionized, don haka yana da sauƙi don cimma canjin fitarwa a cikin argon arc.Lokacin da abun ciki na argon na cakuda gas bai kasance ƙasa da 75% ba, walƙiya mai jujjuyawar waya mai walƙiya na iya cimma daidaiton canjin jet.Tare da raguwar abun ciki na argon, zurfin shiga yana ƙaruwa, amma kwanciyar hankali yana raguwa kuma ƙimar spatter yana ƙaruwa.Saboda haka, mafi kyau duka cakuda gas ne 75% Ar + 25% CO2.Hakanan ana iya amfani da Ar+2% O2 don cakuda iskar gas.
Lokacin da aka zaɓi iskar CO2 mai tsabta, zai bazu a ƙarƙashin aikin zafi na baka kuma ya samar da adadi mai yawa na oxygen atom, wanda zai haifar da manganese, silicon da sauran abubuwa a cikin narkakkar tafki, wanda zai haifar da konewar abubuwan da aka haɗa.Don haka, ya kamata a yi amfani da wayar walda tare da babban abun ciki na manganese da silicon.
Lokacin aikawa: Mayu-09-2023