Argon kuʻihao o Aluminum: aha i ka ka manaʻo pohihihi o ka

Ke kahe o ka loa i loaʻa ano kuʻihao o ka Aluminum me ka maemae palapala a me kona likeʻole oka a pau o kona kulana pili ma ka pili me ko lakou palahalaha palapala noi. Kekahi o ka mea pono loea manaoia argon kuʻihao o Aluminum. Nō kāu welded netermouprochnyaemye deformable Aluminum oka a pau e i ka oaoieei- Aluminum (kaha AD AD1) nānā 'ana i Aluminum oka a pau a me ka manganese (AMts), Aluminum a me ka makanekiuma (AlMg). Oia oka a kaʻoi loa nā pilikia-e. No ka mea, ka mea i hoʻohana ', ina ka wela iapaau ana mea hiki no ke' ole.

Alumina ho okumu i refractory Auana ma luna o ka ili o ka workpiece (TM Al ₂ O ₃ = 2050 ° C), me he oi pa apŘ ma mua o ka mea hiki ke hooheheeia iho. Me ka make ana o ka'okesaside ho film o kona (particles) contaminate welded bata, complicating ka pilina lua penei. No ia mea, argon kuʻihao o ka Aluminum mea e ahoʻia ma hope me mechanical'okesaside pōpilikia 'ana a me etching kumu a me ka filler ke hooheheeia. Additional ka manaʻo pohihihi a ke kumu i ka nui likeʻole ma waena o ka Al hauneneʻe (TM = 660 ° C) a me kona'okesaside.

Ka wā i argon kuʻihao me ka 'ole-consumable tungsten'ūholo uila o Aluminum, he alternatingʻikena ua noi ia. Ma keia hihia, ua luku ka'okesaside ho film i loko o ka aʻe polarity hapa-pōʻaiapuni ka wā i'ūholo uila o 70% wela hanauna o ka piʻo, a me ka hoonui - 30% (sputtering ia lŘlŘ).

ikaika o ka mea hiki ke hooheheeia emi ikaika i kiekie ae ana wela, a hiki i ka make ana o unmelted hapa kae ma lalo o ke kaumaha o ka weld wai puna. Mahuahua heheʻe i kahe Al maoli ka likelihood o kulu, mai ke kumu mai o ka weld. I mea e pale ai kuni i ka mea hoailona a me ka hoʻolako 'ole' weld, ina hana argon kuʻihao enehana e pū i ka hana ho okumu i ka pālolo (graphite a me ka kila) nā pale poʻohiwi. Cosi, kuʻihao 'ole ka loiloi mua hookahi-, ahu iho metala papa a me ka nunui-ulana.

An mahuahua ka welelau o ka warping o Aluminum oka a hiki ke lanakila ma ka lawelawe ana mai kuʻihao ma luna o ka mea e pono ai ka mahana kūlana a me lalana ana ia ia i ka hana mau'āpana. Ua hoemiia ka hanana hydrogen weld porosity, pakahi aku la ia kekahi 'ma ka oka a me ka makanekiuma, ma ka mea o ka hahana maoli nō kēia a hiki i T = 150-250 ° C mua a me ka manawa kuʻihao, a ma ka hoʻokolokolo pono, i ka hoʻomaʻemaʻe o nā kihi a welded uea. I mea,ʻaʻole e hōʻike wela mawae, na nakaka e ole e noho kokoke ana i kekahi i kekahi. Ua mea no hoi e hiki hou o kūikawā modifiers ma 'ō mea hiki ke hooheheeia.

Argon Aluminum kuʻihao komo ai i ka hoʻohana 'ana o aiiay gaseous āina o inert argon kinoea pau ka i ka lewa lewa, mai ka weld auau a me ka wai koko piʻo. Pili i Ara i wahi (lani kiekie loa a mua ka papa). Kekahiʻano o ka hoomalu - helium, läÿau, he helium a me ka argon, akā, laila, i kekahi mau mea i ka aiiay kinoea pele ua hoomahuahua ia.

Anawaena nonconsumable tungsten'ūholo uila (koe wale no ke gula, a me ka hoʻohana 'lanthanised ittrirovannye) ua wae ke kaumaha ma muli huahana mānoanoa. E like me ka filler lako e hana kuʻihao uea o nā papa, ke kaumaha ma muli o ka haku mele 'ana o ka papa kuhikuhiE huina hoonui a me ka lihi mānoanoa. High-e like ai argon kuʻihao mau lima hiki ke hana ma kekahi alternatingʻikena (UDG 'ano o ka mea hoʻonoho) me ka pono' ole, a i wae i ka hoao ana i ka welder. Ka mea hoʻomaka E mua loaaʻi ka ike lea i ka moʻokalaleo kumu, hoakaka ana i ka 'ole a me nā nuances o kuʻihao Aluminum.