Ọrụ nke gas nchebe na usoro ịgbado ọkụ laser
(1) Gas na-echebe nwere ike ichebe oghere isi laser site na mmetọ uzuoku igwe na nsị mmiri mmiri.
(2) Uzuzu igwe na-amịkọrọ eriri laser wee banye n'ime ígwé ojii plasma. Ọ bụrụ na enwere oke plasma, a na-erikwa eriri laser site na plasma ruo n'ókè ụfọdụ. Gas na-echebe nwere ike ịgbasa plumes metal vepor plumes ma ọ bụ plasma ígwé ojii, belata mmetụta nchebe nke laser, ma welie irè ojiji nke laser.
(3) gas na-echebe nwere ike ichebe ọdọ mmiri a wụrụ awụ. Mgbe ụfọdụ ihe na-welded, elu oxidation nwere ike ileghara anya. Enwere ike ileghara nchedo ahụ anya. Otú ọ dị, maka ọtụtụ ngwa, helium, argon, nitrogen na gas ndị ọzọ na-ejikarị maka nchebe, nke mere na workpiece nwere ike ịbụ Zere ọxịdashọn n'oge ịgbado ọkụ.
Cgas nchebe ommonly maka ịgbado ọkụ laser
(1) Helium: ike ionization dị elu, ogo ionization dị ala n'okpuru ọrụ nke laser, nwere ike ịchịkwa nguzobe nke ígwé ojii plasma, ma nwee ọrụ dị ala, na-anaghị emeghachi omume na metal, ọ bụ ezigbo gas nchebe. Agbanyeghị, ọnụ ahịa helium dị oke oke ma a na-ejikarị eme nyocha sayensị.
(2) Argon gas: The ionization ume dịtụ ala, na ionization ogo dị elu n'okpuru omume nke laser, nke na-adịghị mma ịchịkwa guzobe nke plasma ígwé ojii, na ga-enwe mmetụta ụfọdụ na irè itinye n'ọrụ nke laser; ma ọrụ ya dị ala, nke siri ike iji tụnyere nkịtị The metal na-enweta mmeghachi omume kemịkalụ, ọnụ ahịa ya adịghịkwa elu, n'ihi ya enwere ike iji ya dị ka gas nchebe nkịtị. .
(3) Nitrogen: ike ionization na-agafeghị oke, dị elu karịa argon na ala karịa helium. Nitrogen nwere ike meghachi omume na aluminom alloy na carbon steel n'otu ọnọdụ okpomọkụ iji mepụta nitrides, nke ga-eme ka ọkpụkpụ nke weld dịkwuo elu, belata ịdị ike, ma nwee mmetụta dị njọ na ihe ndị na-emepụta ihe nke nkwonkwo weld. Ya mere, a naghị atụ aro iji nitrogen. A na-echekwa aluminom alloy na carbon steel welds. Nitride na-emepụta site na mmeghachi omume kemịkalụ dị n'etiti nitrogen na igwe anaghị agba nchara nwere ike ime ka ike nke nkwonkwo weld dịkwuo ike, nke ga-enyere aka melite ihe eji arụ ọrụ nke weld. Ya mere, nitrogen nwere ike iji dị ka ihe na-echebe gas mgbe ịgbado ọkụ igwe anaghị agba nchara.
Usoro nke nchebe gas na-agbapụ
Enwere ụzọ abụọ bụ isi ugbu a iji fesa gas nchebe:
(1) Ọ bụ ihe nchebe n'akụkụ akụkụ nke ogwe akụkụ
(2) Ọ bụ nchebe coaxial, dị ka egosiri na foto dị n'okpuru.
Gas na-echebe ọ bụghị naanị na ọ dị mkpa ichebe ọdọ mmiri weld n'oge, kamakwa ọ kwesịrị ichebe ebe siri ike siri ike nke agbadoro. Ya mere, a na-ejikarị ihe nchebe na-afụ ụfụ n'akụkụ akụkụ, n'ihi na usoro nchebe a dị ntakịrị Ebe nchekwa nke usoro nchebe coaxial dị obosara karị, karịsịa maka mpaghara ebe weld ka siri ike.
Akụkụ akụkụ ịfụfụ Maka ngwa injinia, ọ bụghị ngwaahịa niile nwere ike ichebe site n'akụkụ ịfụ n'akụkụ. Maka ngwaahịa ụfọdụ akọwapụtara, naanị nchebe coaxial nwere ike iji. Ọ dị mkpa ka e lekwasị anya site na nhazi ngwaahịa na ụdị nkwonkwo. Nhọrọ mmekọahụ.
N'ihi na weld udi bụ ogologo, nkwonkwo ụdị nwere ike ịbụ butt nkwonkwo, n'apata ụkwụ nkwonkwo, nkuku nkwonkwo ma ọ bụ overlap welded nkwonkwo. Ụdị ngwaahịa a na-agbaso usoro nchebe n'akụkụ.
Maka ngwaahịa ndị ọdịdị weld bụ okirikiri ma ọ bụ polygonal, na ụdị nkwonkwo bụ nkwonkwo ụkwụ, nkwonkwo ụkwụ, nkwonkwo ịgbado ọkụ, wdg, ọ ka mma iji nchebe coaxial maka ụdị ngwaahịa a.
Ihe dị n'elu bụ ọrụ na usoro nchebe nke gas na-ekpuchi ọkụ laser. N'ime usoro eji eme ihe n'ezie, a ga-ahọrọ ya dịka ọnọdụ dị adị.
Oge nzipu: Nov-19-2021