Ponena za kulumikizana ndi mkuwa, kulondola sikungokhala chinthu chabwino kukhala nacho—ndi chinthu chomwe chimapangitsa kuti zinthu zikhale zolimba, magwiridwe antchito, komanso kukongola. Kaya mukupanga zida za HVAC, zolumikizira zamagetsi, kapena zokongoletsera za mkuwa, njira yolakwika yolumikizira ingayambitse mipata yoboola, kutayika kwa zinc, kapena kumaliza kosayenera komwe kungasokoneze mapulojekiti anu. Ngati mwakhala mukuvutika ndi zotsatira zosasinthasintha kuchokera ku njira zachikhalidwe zolumikizira mkuwa, ndi nthawi yoti muyang'ane kupitirira zoyambira: TIG welding ikhoza kukhala yankho lomwe mwakhala mukufufuza.
Choyamba, tiyeni tikambirane zofunikira za Brass Welding kuti tikonze siteji. Brass, yomwe ndi alloy ya mkuwa ndi zinc, imayamikiridwa m'mafakitale ambiri chifukwa cha kutentha kwake, kukana dzimbiri, komanso kusinthasintha—koma zinthu zomwezi zimapangitsa kuti zikhale zovuta kulumikiza. Mosiyana ndi chitsulo, mkuwa uli ndi zinc yochepa (907°C) yomwe ndi yotsika kuposa chitsulo chosungunuka (1083°C), zomwe zikutanthauza kuti kutentha kwambiri panthawi yolumikiza kungayambitse zinc kuuma. Izi sizimangofooketsa ma weld komanso zimapanga utsi woopsa, zomwe zimawonjezera zoopsa pa ndondomekoyi. Kuphatikiza apo, kutentha kwambiri kwa mkuwa kumatanthauza kuti kutentha kumatha msanga, zomwe zimapangitsa kuti zikhale zovuta kusunga dziwe lokhazikika la weld pogwiritsa ntchito njira zosalondola kwenikweni.
Thekuwotcherera mkuwaMakampani amafuna mayankho omwe amalinganiza bwino magwiridwe antchito ndi khalidwe, makamaka m'magawo monga magalimoto, ndege, ndi mapaipi komwe zida ziyenera kukwaniritsa miyezo yokhwima yachitetezo ndi magwiridwe antchito. Pakupanga kwakukulu, kusinthasintha ndikofunikira - kusinthasintha kwa mphamvu ya weld kapena mawonekedwe kungayambitse kukonzanso kokwera mtengo kapena kubweza zinthu. Pa ntchito yokongoletsa kapena yopangidwa mwamakonda, kukongoletsa kumakhala pakati; weld yosasangalatsa imatha kuwononga mawonekedwe okongola a zida zamkuwa, zida zoimbira, kapena tsatanetsatane wa zomangamanga. Makampani awa akufunika kufotokoza chifukwa chake akatswiri ambiri akugwiritsa ntchito TIG welding kuti agwirizane bwino ndi mkuwa.
Nanga, n’chifukwa chiyani TIG welding (yomwe imadziwikanso kuti Gas Tungsten Arc Welding, GTAW) ndi yoyenera kwambiri pa Brass Welding? Tiyeni tiyambe ndi kulondola kwake kosayerekezeka. TIG imagwiritsa ntchito electrode ya tungsten yosagwiritsidwa ntchito ndi pedal ya phazi kuti ilamulire amperage, zomwe zimathandiza owelda kusintha kutentha molondola kwambiri. Mlingo uwu wowongolera ndi wofunikira kwambiri pa mkuwa: umaletsa kutentha kwambiri, umachepetsa nthunzi ya zinc, komanso umachepetsa chiopsezo cha porosity - zolakwika zomwe zimachitika m'njira zina zowelda monga MIG kapena gas welding. Pa mapepala opyapyala a mkuwa kapena machubu ang'onoang'ono (omwe amapezeka kwambiri mu ntchito zamagetsi ndi HVAC), mphamvu yolowera kutentha pang'ono ya TIG imapewanso kupindika, kusunga mawonekedwe ndi umphumphu wa zinthuzo.
Ubwino wina waukulu wa TIG welding polumikiza mkuwa ndi kumalizidwa kwake koyera, kopanda slag. Mosiyana ndi welding yomata, TIG siifuna flux, zomwe zimachotsa kufunikira koyeretsa pambuyo pa weld kuti muchotse zotsalira za slag - zomwe zimasunga nthawi yambiri pa malo ogwirira ntchito otanganidwa. Mpweya woteteza wopanda mphamvu (nthawi zambiri argon kapena argon-helium mix) womwe umagwiritsidwa ntchito polumikiza TIG welding umatetezanso dziwe la weld ku kuipitsidwa kwa mlengalenga, kuteteza okosijeni ndikuwonetsetsa kuti msoko wosalala, wofanana womwe ndi wolimba komanso wowoneka bwino. Izi zimasinthiratu ntchito yokongoletsa ya mkuwa kapena zigawo zina zomwe kukana dzimbiri sikungatheke kukambirana, monga zida zam'madzi kapena mapaipi.
Chitetezo ndi gawo lina lomwe TIG imawala kwambiri pa Brass Welding. Ngakhale njira zonse zowotcherera za mkuwa zimakhala ndi chiopsezo cha zinc fume, kuwongolera kutentha kwa TIG molondola kumachepetsa kuchuluka kwa utsi wa zinc poyerekeza ndi njira zotenthetsera kwambiri monga oxyacetylene welding. Ikaphatikizidwa ndi mpweya wabwino komanso zida zodzitetezera (PPE), TIG imapanga malo ogwirira ntchito otetezeka—chinthu chofunikira kwambiri kwa mabizinesi omwe akufuna kutsatira malamulo a OSHA ndi HSE. Kuphatikiza apo, TIG welding sipanga ming'alu kapena madontho, zomwe zimachepetsa zoopsa zamoto m'ma workshop okhala ndi zinthu zoyaka moto.
Ndikofunikira kudziwa kuti TIG welding si njira imodzi yokha, koma kusinthasintha kwake kumapangitsa kuti ikhale yogwirizana ndi zosowa zambiri zolumikizirana ndi mkuwa molondola. Imagwira ntchito ndi zitsulo zamkuwa zotsika (alpha) ndi high-zinc (alpha-beta), ndipo imatha kuthana ndi makulidwe kuyambira ma gauge owonda (osakwana 1.5mm) mpaka 9mm ndi zinthu zoyenera zodzaza. Pazitsulo zamkuwa zokwera, kugwiritsa ntchito ndodo yodzaza yopanda zinc ndi mpweya woteteza wa helium wambiri kumachepetsanso kupanga utsi ndi ma porosity, kuonetsetsa kuti ma weld olimba komanso odalirika.
Kwa ogula ndi opanga zinthu omwe amayesa njira zogwiritsira ntchito Brass Welding, chisankhocho chimatengera zomwe mukufuna. Ngati mukufuna liwiro kuposa zonse, MIG welding ingakhale yoyenera magawo olimba a mkuwa. Koma ngati kulondola, kusasinthasintha, ndi mtundu sizingakambirane - makamaka pazinthu zofunika kwambiri kapena zokongola - TIG welding ndiyo njira yabwino. Imathetsa mavuto apadera a mkuwa ngati chinthu, imakwaniritsa miyezo yokhwima ya mafakitale ofunikira, ndipo imapereka zotsatira zomwe zimachepetsa kukonzanso ndikuwonjezera phindu la zinthu zomaliza.
Mu dziko la kulumikizana bwino kwa mkuwa, kudula njira zolumikizirana pogwiritsa ntchito njira zoyambira zolumikizirana nthawi zambiri kumabweretsa mavuto ambiri mtsogolo. Kulumikiza kwa TIG sikungotengera njira zachikhalidwe zokha—ndi ndalama zomwe zimayika paubwino zomwe zimapindulitsa pakugwira ntchito bwino, magwiridwe antchito otetezeka, komanso makasitomala osangalala. Kaya ndinu katswiri wopanga zinthu kapena mwangoyamba kumene kugwira ntchito ndi mkuwa, kusintha kupita ku TIG kungakhale kusiyana pakati pa zotsatira zabwino ndi zabwino.
Nthawi yotumizira: Januwale-07-2026