Laser Welding: Yadda ake zabar Gas ɗin Garkuwar ku

Zaɓin madaidaicin walda mai taimakawa gas yana ɗaya daga cikin mafi mahimmancin yanke shawara da za ku yi, duk da haka galibi ana fahimta. Shin kun taɓa mamakin dalilin da yasa da alama cikakkiyar walƙiyar laser ta gaza ƙarƙashin damuwa? Amsar na iya kasancewa a cikin iska… ko kuma a maimakon haka, a cikin takamaiman gas ɗin da kuka yi amfani da shi don kare walda.

Wannan gas, wanda kuma ake kira garkuwar gas don waldawar laser, ba ƙari ba ne kawai na zaɓi; muhimmin bangare ne na tsari. Yana aiwatar da ayyuka uku marasa sulhu waɗanda kai tsaye ke ƙayyade inganci, ƙarfi, da bayyanar samfurin ku na ƙarshe.

Yana Kare Weld:Gas na taimakawa yana haifar da kumfa mai kariya a kusa da narkakken ƙarfe, yana kare shi daga iskar gas kamar oxygen da nitrogen. Idan ba tare da wannan garkuwar ba, kuna samun lahani masu haɗari kamar oxidation (rauni, walda mara launi) da porosity (kananan kumfa waɗanda ke lalata ƙarfi).

Yana Tabbatar da Cikakken Ƙarfin Laser:Yayin da Laser ke bugun karfe, zai iya haifar da "girgijen plasma." Wannan gajimare na iya toshewa da warwatsa makamashin Laser, wanda zai haifar da mara zurfi, mara ƙarfi. Gas ɗin da ya dace yana busa wannan plasma, yana tabbatar da cikakken ikon laser ɗin ku ya isa wurin aiki.

Yana Kare Kayan aikinku:Ruwan iskar gas kuma yana hana tururin ƙarfe da spatter tashi sama da gurɓata ruwan tabarau mai tsada a cikin kan Laser ɗin ku, yana ceton ku daga raguwa mai tsada da gyare-gyare.

Zaɓin Gas ɗin Garkuwa don waldawar Laser: Manyan Masu Fada

Zaɓin ku na iskar gas ya ragu zuwa manyan 'yan wasa uku: Argon, Nitrogen, da Helium. Yi la'akari da su a matsayin ƙwararrun ƙwararru daban-daban da za ku ɗauka don aiki. Kowannensu yana da ƙarfi na musamman, rauni, da kuma yanayin amfani da ya dace.

Argon (Ar): Amintaccen Duk-Rounder

Argon shine dokin aiki na duniyar walda. Gas ne marar amfani, ma'ana ba zai amsa da narkakken walda ba. Hakanan yana da nauyi fiye da iska, don haka yana ba da kyakkyawan tsari, kwanciyar hankali na kariya ba tare da buƙatar ƙimar kwarara mai yawa ba.

Mafi kyawun Ga:A babbar kewayon kayan, ciki har da aluminum, bakin karfe, kuma musamman m karafa kamar titanium. Argon Laser walda shine tafi-zuwa ga Laser fiber saboda yana ba da tsafta, mai haske, da ƙarancin walƙiya.

Mahimmin La'akari:Yana da ƙananan yuwuwar ionization. Tare da babban ƙarfin CO₂ Laser, yana iya ba da gudummawa ga samuwar plasma, amma ga yawancin aikace-aikacen Laser fiber na zamani, shine mafi kyawun zaɓi.

Nitrogen (N₂): Mai Tasirin Tasiri

Nitrogen shine zaɓi na abokantaka na kasafin kuɗi, amma kada ku bar ƙananan farashi ya yaudare ku. A cikin aikace-aikacen da ya dace, ba garkuwa ba ne kawai; ƙwararren ɗan takara ne wanda zai iya inganta walda a zahiri.

Mafi kyawun Ga:Wasu maki na bakin karfe. Amfani da nitrogen don Laser bakin karfe waldi na iya aiki a matsayin alloying wakili, stabilizing karfe ta ciki tsarin inganta inji ƙarfi da kuma lalata juriya.

Mahimmin La'akari:Nitrogen iskar gas ce mai amsawa. Yin amfani da shi akan kayan da ba daidai ba, kamar titanium ko wasu karafan carbon, girke-girke ne na bala'i. Zai amsa tare da ƙarfe kuma ya haifar da ɓarna mai tsanani, yana haifar da walda wanda zai iya fashe kuma ya kasa.

Helium (Shi): ƙwararren Ƙwararru Mai Girma

Helium shine babban tauraro mai tsada. Yana da babban ƙarfin wutar lantarki da kuma babban yuwuwar ionization mai ban mamaki, yana mai da shi zakaran da ba a saba da shi ba na danne plasma.

Mafi kyawun Ga:Zurfin shigar waldi a cikin kauri ko kayan aiki sosai kamar aluminum da jan karfe. Hakanan shine babban zaɓi na laser CO₂ masu ƙarfi, waɗanda ke da saurin kamuwa da samuwar plasma.

Mahimmin La'akari:Farashin Helium yana da tsada, kuma saboda yana da haske sosai, kuna buƙatar ƙimar kwararar ruwa mai yawa don samun isassun garkuwa, ƙara ƙimar aiki.

Kwatanta Gas Mai Sauri

Zabin Gas mai Haɓaka Laser: Daidaita Gas da Karfe

Ka'idar tana da kyau, amma ta yaya kuke amfani da ita? Anan ga jagorar madaidaiciya don mafi yawan kayan aiki.

Welding Bakin Karfe

Kuna da zaɓi biyu masu kyau anan. Don austenitic da duplex bakin karfe, Nitrogen ko gauraya Nitrogen-Argon galibi shine mafi girman zaɓi. Yana haɓaka microstructure kuma yana haɓaka ƙarfin walda. Idan fifikon ku ya kasance cikakke mai tsabta, haske mai haske ba tare da hulɗar sinadarai ba, Argon tsantsa shine hanyar da za a bi.

Aluminum Welding

Aluminum yana da wahala saboda yana watsar da zafi da sauri. Don yawancin aikace-aikacen, Argon tsantsa shine daidaitaccen zaɓi saboda kyakkyawan garkuwar sa. Koyaya, idan kuna walda sassa masu kauri (sama da 3-4 mm), cakuda Argon-Helium shine mai canza wasa. Jirgin helium yana ba da ƙarin naushin zafin da ake buƙata don cimma zurfi, daidaitaccen shigarwa.

Welding Titanium

Akwai ka'ida ɗaya kawai don walda titanium: amfani da Argon mai tsabta. Kada ka taɓa yin amfani da Nitrogen ko kowane cakuda gas mai ɗauke da iskar gas. Nitrogen zai amsa tare da titanium, ƙirƙirar titanium nitrides waɗanda ke sa walda ta wuce gona da iri kuma tana nufin gazawa. Cikakken garkuwa tare da bin diddigi da iskar gas shima wajibi ne don kare ƙarfe mai sanyaya daga duk wani hulɗa da iska.

Shawarwari na Kwararru:Sau da yawa mutane suna ƙoƙarin ceton kuɗi ta hanyar rage yawan iskar gas ɗin su, amma wannan babban kuskure ne. Kudin walda guda ɗaya da ya gaza saboda iskar oxygen ya zarce ƙimar amfani da daidaitaccen adadin iskar gas. Koyaushe farawa da ƙimar kwarara da aka ba da shawarar don aikace-aikacen ku kuma daidaita daga can.

Shirya matsala na gama-gari na walda Laser

Idan kuna ganin matsaloli a cikin waldajin ku, iskar gas ɗin taimakon ku na ɗaya daga cikin abubuwan farko da yakamata ku bincika.

Oxidation & Rawan launi:Wannan ita ce mafi bayyananniyar alamar kariya mara kyau. Gas ɗin ku baya kare walda daga iskar oxygen. Gyaran yawanci shine don haɓaka ƙimar iskar gas ɗinku ko duba bututun ƙarfe da tsarin isar da iskar gas don ɗigogi ko toshewa.

Porosity (Gas Bubbles):Wannan lahani yana raunana walda daga ciki. Ana iya haifar da shi ta hanyar magudanar ruwa wanda ya yi ƙasa da ƙasa (bai isa ba kariya) ko kuma wanda ya yi tsayi da yawa, wanda zai iya haifar da tashin hankali kuma ya ja iska a cikin tafkin walda.

Shiga mara daidaituwa:Idan zurfin weld ɗinku ya ko'ina, ƙila kuna ma'amala da plasma toshe Laser. Wannan na kowa da CO₂ Laser. Maganin shine canza zuwa gas tare da mafi kyawun ƙwayar plasma, kamar Helium ko haɗin Helium-Argon.

Batutuwa masu tasowa: Gas ɗin Gas & Nau'in Laser

Ƙarfin Haɗin Dabarun

Wani lokaci, iskar gas guda ɗaya baya yanke shi. Ana amfani da gaurayawar iskar gas don samun "mafi kyawun duniya biyu."

Argon-Helium (Ar/He):Yana haɗu da kyakkyawan garkuwar Argon tare da babban zafi da rage plasma na Helium. Cikakke don walƙiya mai zurfi a cikin aluminum.

Argon-Hydrogen (Ar / H₂):Ƙananan adadin hydrogen (1-5%) na iya aiki a matsayin "wakili mai ragewa" akan bakin karfe, yana lalata iskar oxygen da ya ɓace don samar da madaidaicin walƙiya mai haske, mai tsabta.

CO₂ vs.Fiber: Zabar Laser Dama

CO₂ Laser:Suna da saurin kamuwa da samuwar plasma. Wannan shine dalilin da ya sa Helium mai tsada ya zama ruwan dare a cikin babban ƙarfin CO₂ aikace-aikace.

Fiber Lasers:Suna da ƙarancin kamuwa da al'amuran plasma. Wannan fa'ida mai ban sha'awa tana ba ku damar amfani da iskar gas masu tsada kamar Argon da Nitrogen don galibin ayyuka ba tare da sadaukar da aikin ba.

Layin Kasa

Zaɓin walda na Laser yana taimakawa gas shine ma'aunin tsari mai mahimmanci, ba tunani na baya ba. Ta hanyar fahimtar ainihin ayyukan garkuwa, kare abubuwan gani, da sarrafa plasma, zaku iya yin zaɓin da aka sani. Koyaushe daidaita gas da kayan da takamaiman buƙatun aikace-aikacen ku.

Shirye don inganta tsarin waldawar ku na Laser da kawar da lahani masu alaka da iskar gas? Bincika zaɓin gas ɗin ku na yanzu akan waɗannan jagororin kuma duba idan sauƙaƙan sauyi zai iya haifar da babban ci gaba a inganci da inganci.