Aluminium welding inyanzvi yakakosha mumaindasitiri akasiyana, kubva kumotokari kuenda kumhepo, nekuda kwekureruka kwealuminium uye isingadzivirirwe nekuora. Zvisinei, welding aluminum inoisa akasarudzika matambudziko nekuda kwekukwira kwayo kwekushisa conductivity uye yakaderera kunyungudika nzvimbo. Iyi bhurogi ichakutungamira iwe kuburikidza neakakosha ekuita weld aluminium, kupa ruzivo rwekukunda matambudziko akafanana uye kuwana yakasimba, durable welds.

Kunzwisisa Aluminium Welding

Usati wanyura mune chaiyo yewelding aluminium, zvakakosha kuti unzwisise zvimiro zvealuminium zvinokanganisa weldability yayo:

• High Thermal Conductivity: Aluminium inoita kupisa nekukurumidza, zvinoreva kuti inogona kubvisa kupisa kubva munzvimbo ye weld nekukurumidza. Izvi zvinoda kupisa kwakanyanya panguva yewelding zvichienzaniswa nesimbi.
• Low Melting Point: Aluminium alloys anonyunguduka panosvika 600°C, yakaderera zvikuru kupfuura simbi. Izvi zvinogona kutungamirira kune ngozi yakawanda yekutsva-kuburikidza kana usina kungwarira.
• Oxide Layer: Aluminium yakasikwa inoumba oxide layer iyo yakakwira zvakanyanya mukunyungudika kupfuura simbi iri pasi. Iyi layer inoda kubviswa kuti ibudirire welding.

Kusarudza Iyo Yakarurama Welding Method

Nzira dzinonyanyozivikanwa dzekushongedza aluminium iGasi Tungsten Arc Welding (GTAW, kana TIG) uye Gasi Metal Arc Welding (GMAW, kana MIG). Heano kuti vanofananidza sei:

• TIG Welding: Yakanakira zvinhu zvitete uye zvakanaka, basa rakadzama. Inopa welder hukuru hukuru pane weld pane dzimwe nzira, kuita kuti ive yakakwana kune yemhando yepamusoro, chaiwo welds.
• MIG Welding: Inokodzera zvirinani kune dzakakora aruminiyamu zvimedu uye nekukurumidza welding kumhanya. Kazhinji zviri nyore kudzidza uye kukanganwira kupfuura TIG, kunyange zvazvo zvingava zvishoma chaizvo.

Zvokushandisa uye Kugadzirira

Kutanga welding aluminium, iwe uchada midziyo yakakodzera. YeTIG welding, uchada:

• AC inokwanisa TIG welder
• High-frequency kutanga kugona
• Tungsten yakachena kana zirconiated tungsten electrode
• Argon kudzivirira gasi
• Yakakodzera filler zvinhu, 4043 alloy (Al-Hongu) uye 5356 alloy (Al-Mg) anowanzo shandiswa filler metals

Ye MIG welding:

• A MIG welder ine aluminium-inoenderana nedhiraivha system
• Argon kana argon-helium musanganiswa wekudzivirira gasi
• Pfuti kana kuti push-pull pfuti kudzivirira nyaya dzekudyisa waya

Kugadzirira inokosha kana welding aluminium. Chenesa zvinhu zvakakwana kuti ubvise chero mafuta, tsvina, uye kunyanya iyo oxide layer. Kubviswa kwemichina (simbi bhurasho) kana nzira dzemakemikari dzinogona kushandiswa kuona kuti aluminium haina kusvibiswa usati watanga.

Kuti uwane rumwe ruzivo nezve aluminium welding, ndapota tarisa kune ‘Aluminium Welding: Bhuku Rinobatsira‘

Welding Techniques

• Preheating: Zvichienderana nekukora uye rudzi rwealuminium, preheating inogona kubatsira kubata kupisa kupisa uye kudzivirira kukanganiswa kwemafuta.
• Push Technique: Kana MIG welding, shandisa push technique, uko mwenje unoiswa kona yakananga kune weld, vachisunda dhava. Izvi zvinopa zvirinani kufukidzwa kwegasi uye kuchenesa welds.
• Puddle Control: Aluminium's fluidity zvinoreva kubata weld puddle kwakakosha. Iva nehanya kune weld pool saizi uye maitiro, kugadzirisa kukurumidza uye simba rako maererano.

Kugadzirisa Matambudziko Anowanikwa

• Porosity: Izvi zvinogona kukonzerwa nekusvibiswa, gasi rekudzivirira rakashata, kana kuti mwando wakawandisa. Ita shuwa kuti zvese zvakachena uye zvakaoma uye kuti uri kushandisa iyo chaiyo mhando uye huwandu hwegasi.
• Kutsemuka: Aluminium inowanzo putika, kunyanya pakupera kwe weld. Kudzivirira izvi, iva nechokwadi chokuti chibatanidza chakanyatsogadzirwa uye zvinhu zvinopisa kana zvichidiwa. Kuwedzera filler material pakupera kweweld kunogonawo kubatsira.
• Distortion: Pamusana pekupisa kwayo, aruminiyamu inogona kupeta zvakanyanya kana yakasungwa. Kurwisa izvi, shandisa kugadzirira kwakakodzera kwemajoini, fixtures, uye tack welds kubata zvese munzvimbo.

Kupedzisa

Welding aluminum inoda kunzwisisa yayo yakasarudzika zvivakwa uye kugadzirisa hunyanzvi hwako kuti uvagadzirise. Nekudzidzira, midziyo yakakodzera, uye kunyatsogadzirira nzira, unogona kugona hunyanzvi hwealuminium welding, kuita zvinhu zvose kubva pakugadzirisa nyore kusvika kumagungano akaoma zvinogoneka. Kunyangwe ukasarudza nzira dzeTIG kana MIG, kushivirira uye nemazvo zvinokutungamirira kune akabudirira uye akasimba welds mune izvi zvinonetsa asi zvine mubairo zvinhu.