Argon nomoto pakati aruminiyamu: ndezvipi kunzwisisa kwakaita

Nyaya dzakawanda iripo nzira nomoto kuti aruminiyamu wakachena chimiro chayo alloys siyana chaizvo akakodzera maererano yavo yakafara kushanda. Mumwe nevakawanda ruzivo vaiona argon nomoto pakati aruminiyamu. Yemanyorero welded netermouprochnyaemye deformable aruminiyamu alloys uko hwokugadzira aruminiyamu (mavanga AD AD1) kwakavakirwa aruminiyamu alloys uye manganese (AMts), aruminiyamu uye magnesium (AlMg). alloys kwakadaro zvinganaka zvinosanganisira zvakaoma-kuna. Nokuti kushandiswa, kana kupisa kurapwa zvinogoneka chacho.

Alumina vanoumba refractory firimu pamusoro pemvura workpiece (TM Al ₂ O ₃ = 2050 ° C), kuva arambe achirema kupfuura simbi pachayo. With kuparadzwa oxide firimu pakati nezvimedu ayo isva welded kugeza, complicating papi kumicheto. Naizvozvo argon nomoto pamusoro aruminiyamu riri nani mushure zvokuimba oxide kubviswa kana etching chawo uye filler simbi. Zvimwe kunzwisisa uye rinoita musiyano chinokosha pakati Al kubvunda (TM = 660 ° C) yayo oxide.

Kana ane argon Welding nevasiri consumable tungsten electrode pamusoro aruminiyamu, imwe rakatumbuka ano rikashandiswa. Panyaya iyi, iyo oxide firimu iri rakaparadzwa neizvi polarity hafu-zvinogara kana ane electrode 70% kupisa Rudzi chinhu chakakombama, uye chigadzirwa - 30% (sputtering kunoitika).

Simba simbi zvinoderedza zvikuru panguva dzakakwirira kutonhora, izvo zvinogona kukonzera kuparadza unmelted mugove kumucheto pasi kurema weld dziva. Inosimudzira uchanyangadika yerera Al kunowedzera mukana wokuti leakage kubva pamudzi wacho weld. Kuitira kudzivirira kokutsva mavanga uye weld kukundikana, kana akaita argon nomoto michina kungasanganisira kushandiswa akaita zvedongo (graphite uye simbi) Mapedhi. Cosi, nomoto kana kutanga kuroorwa-rukoko simbi akaturikidzana uye multi-musono.

An yakawedzerwa tsika the warp pamusoro aruminiyamu alloys zvinogona akakurirwa aite nomoto pamusoro Zvakanyanya Kunaka Panguva Yepamuviri tembiricha ezvinhu uye achidziya basa zvidimbu. The chiitiko rehydrogen weld porosity, kunyanya kuoneka mune alloys pamwe magnesium, achishandisa kudziyisa ipfupi kuna T = 150-250 ° C pamberi uye panguva Welding, uye nokuda kwazvo pakuchenesa micheto uye welded waya. Kuti varege kuonekwa anopisa makatsemuka, navarairi vazvo havafaniri chiri pedyo nepedyo. Zvinogonekawo kuwedzera anokosha modifiers mu dzekugonesa simbi.

Argon aruminiyamu nomoto kunosanganisira kushandisa anodzivirira gaseous hwaiitwa inert argon gasi displacing mhepo muchadenga kubva weld kugeza uye plasma chinhu chakakombama. Zvinoshanda anogona Ar (soro kana kutanga kirasi). Chimwe pachake unodzivirira - nehelium, musanganiswa nehelium uye argon, asi ipapo unodzivirira gasi aibuda iri zvishoma ichiwedzerwa.

Dhayamita nonconsumable tungsten electrode (kunze yakaisvonaka, kana kushandiswa lanthanised ittrirovannye) anosarudzwa zvichienderana chigadzirwa ukobvu. Sezvo filler zvinhu anoita nomoto waya pamusoro zvidzidzo zvakasiyana-siyana, zvichienderana murwiyo huru chigadzirwa uye mucheto ukobvu. Yepamusoro argon Welding nemaoko kunogona kuitwa musi imwe rakatumbuka ano (UDG mhando rokugadza naro) pamwe zvakafanira modes, izvo vanosarudzwa ane ruzivo ndiri weredha. The mutsva anofanira kutanga tinyatsoziva zvinotisimbisa mabhuku, chaiyo kuti modes uye nuances kuti Welding aruminiyamu.