Mmetụta Gas na-echebe na Welding Laser
Kedu ihe gas nchekwa ziri ezi nwere ike nweta gị?
In laser ịgbado ọkụ, nhọrọ nke nchebe gas nwere ike inwe mmetụta dị ịrịba ama na e guzobere, àgwà, omimi, na obosara nke weld seam.
N'ọtụtụ ọnọdụ, iwebata gas nchebe na-enwe mmetụta dị mma na nkedo weld ebe ojiji nke gas na-adịghị mma nwere ike inwe mmetụta dị njọ na ịgbado ọkụ.
Mmetụta kwesịrị ekwesị na adịghị mma nke iji gas nchebe bụ ndị a:
Jiri nke ọma
Iji ezighi ezi
1. Nchekwa nke ọma nke ọdọ mmiri Weld
Iwebata gas na-echebe nke ọma nwere ike chebe ọdọ mmiri weld nke ọma pụọ na oxidation ma ọ bụ ọbụna gbochie oxidation kpamkpam.
1. Deterioration nke Weld Seam
Iwebata gas nchebe na-ezighi ezi nwere ike ime ka ọ ghara ịdị mma weld.
2. Mbelata spattering
Ịwebata gas nchebe nke ọma nwere ike ibelata nsị n'oge usoro ịgbado ọkụ.
2. Ngwongwo na Mbelata Mechanical Njirimara
Ịhọrọ ụdị gas na-ezighị ezi nwere ike iduga weld seam cracking na ibelata arụmọrụ n'ibu.
3. Uniform Formation nke Weld Seam
Ntinye kwesịrị ekwesị nke gas nchebe na-akwalite ọbụna ịgbasa ọdọ mmiri weld n'oge siri ike, na-eme ka akwa akwa akwa na-adọrọ adọrọ na mma.
3. Mmụba Oxidation ma ọ bụ nnyonye anya
Ịhọrọ ọnụego ikuku gas na-ezighi ezi, ma ọ dị oke elu ma ọ bụ dị ala, nwere ike iduga ụbara oxidation nke eriri weld. Ọ nwekwara ike ịkpata ọgba aghara siri ike na ọla a wụrụ awụ, na-ebute ọdịda ma ọ bụ guzobe nke ọma nke eriri weld.
4. Mụbara ojiji Laser
Ịwebata gas nchebe nke ọma nwere ike belata mmetụta nchebe nke igwe vapor metal ma ọ bụ ígwé ojii plasma na laser, si otú ahụ na-abawanye arụmọrụ laser.
4. Nchekwa ezughị oke ma ọ bụ mmetụta ọjọọ
Ịhọrọ usoro mmeghe nke gas na-ezighị ezi nwere ike iduga na nchebe zuru oke nke weld seam ma ọ bụ ọbụna nwee mmetụta na-adịghị mma na nhazi nke weld seam.
5. Mbelata nke Weld Porosity
Ịwebata gas nchebe nke ọma nwere ike belata nguzobe nke pores gas na eriri weld. Site n'ịhọrọ ụdị gas kwesịrị ekwesị, ọnụego ịgbasa, na usoro mmeghe, enwere ike nweta nsonaazụ dị mma.
5. Mmetụta na Weld Depth
Ntinye nke gas na-echebe nwere ike inwe mmetụta ụfọdụ na omimi nke weld, karịsịa na ịgbado ọkụ dị mkpa, ebe ọ na-eme ka ibelata ịdị omimi nke weld.
Ụdị gas nchekwa dị iche iche
Gasị nchebe a na-ejikarị na ịgbado ọkụ laser bụ nitrogen (N2), argon (Ar), na helium (He). Gasị ndị a nwere ihe anụ ahụ na kemịkal dị iche iche, nke na-ebute mmetụta dị iche iche na eriri weld.
1. Nitrogen (N2)
N2 nwere ike ionization na-agafeghị oke, dị elu karịa Ar na ala karịa Ya. N'okpuru ọrụ nke laser, ọ ionizes na a agafeghị oke ogo, n'ụzọ dị irè na-ebelata nguzobe nke plasma ígwé ojii na-amụba ojiji nke laser. Otú ọ dị, nitrogen nwere ike imeghachi omume kemịkal na aluminom alloys na carbon steel na ụfọdụ okpomọkụ, na-akpụ nitrides. Nke a nwere ike dịkwuo brittleness na ibelata ike nke weld onuete, na-adịghị mma na-emetụta ya n'ibu Njirimara. Ya mere, a naghị atụ aro iji nitrogen dị ka ihe nchebe maka aluminum alloys na carbon steel welds. N'aka nke ọzọ, nitrogen nwere ike meghachi omume na igwe anaghị agba nchara, na-eme nitrides na-eme ka ike nke nkwonkwo weld dịkwuo ike. Ya mere, enwere ike iji nitrogen dị ka gas nchebe maka ịgbado ọkụ igwe anaghị agba nchara.
2. Argon gas (Ar)
Argon gas nwere ike ionization dịtụ ala, na-ebute ogo ionization dị elu n'okpuru ọrụ laser. Nke a adịghị mma maka ịchịkwa nhazi nke ígwé ojii plasma ma nwee ike inwe mmetụta ụfọdụ na ojiji nke lasers dị irè. Agbanyeghị, argon nwere mmeghachi omume dị ala ma o yighị ka ọ ga-enweta mmeghachi omume kemịkalụ na ọla ndị nkịtị. Ọzọkwa, argon na-akwụ ụgwọ. Ọzọkwa, n'ihi njupụta ya dị elu, argon na-agbada n'elu ọdọ mmiri weld, na-enye nchebe ka mma maka ọdọ mmiri weld. Ya mere, enwere ike iji ya dị ka gas na-echebe ya.
3. Helium gas (He)
Helium gas nwere ike ionization kachasị elu, na-eduga n'ogo dị ala nke ionization n'okpuru ọrụ laser. Ọ na-enye ohere maka njikwa nke ọma nke nhazi igwe ojii plasma, na lasers nwere ike iji ọla mee ihe nke ọma. Ọzọkwa, helium nwere mmeghachi omume dị ala ma ọ naghị anabata mmeghachi omume kemịkalụ na ọla, na-eme ka ọ bụrụ ezigbo gas maka nchekwa weld. Otú ọ dị, ọnụ ahịa helium dị elu, n'ihi ya, a naghị eji ya eme ihe n'ọtụtụ ngwaahịa. A na-arụkarị ya n'ọrụ na nyocha sayensị ma ọ bụ maka ngwaahịa agbakwunyere ọnụ ahịa dị elu.
Ụzọ abụọ eji echebe gas
Ka ọ dị ugbu a, e nwere ụzọ abụọ bụ isi maka iwebata gas mkpuchi: ikuku na-apụ apụ na ikuku mkpuchi coaxial, dị ka egosiri na Figure 1 na Figure 2, n'otu n'otu.
Ọnụọgụ 1: Gas na-agbapụ n'akụkụ axis
Ọgụgụ 2: Coaxial Shielding Gas
Nhọrọ n'etiti ụzọ abụọ ịfụfụ na-adabere n'echiche dị iche iche.
N'ozuzu, a na-atụ aro ka iji ụzọ ikuku na-apụ apụ n'akụkụ axis maka ikpuchi gas.
Otu esi ahọrọ gas nchekwa nke ọma?
Mbụ, ọ dị mkpa ịkọwapụta na okwu "oxidation" nke welds bụ okwu ọnụ. Na tiori, ọ na-ezo aka n'ịkwalite ogo weld n'ihi mmeghachi omume kemịkalụ n'etiti igwe weld na ihe ndị na-emerụ ahụ dị na ikuku, dị ka oxygen, nitrogen, na hydrogen.
Mgbochi weld oxidation gụnyere ibelata ma ọ bụ zere kọntaktị n'etiti ihe ndị a na-emerụ ahụ yana metal weld dị elu. Ọnọdụ okpomọkụ a dị elu na-agụnye ọ bụghị naanị ọla ọdọ mmiri a wụrụ awụ, kamakwa oge niile site na mgbe a na-agbaze metal weld ruo mgbe ọdọ mmiri ahụ siri ike na okpomọkụ ya na-ebelata n'okpuru ebe ụfọdụ.
Usoro ịgbado ọkụ
Dịka ọmụmaatụ, na ịgbado ọkụ nke alloys titanium, mgbe okpomọkụ dị n'elu 300 Celsius C, ngwa ngwa hydrogen absorption na-apụta; n'elu 450 Celsius C, ngwa ngwa ikuku oxygen na-eme; na n'elu 600 Celsius C, ntinye nitrogen ngwa ngwa na-eme.
Ya mere, a chọrọ nchebe dị irè maka titanium alloy weld n'oge oge mgbe ọ na-eme ka ọ sie ike na okpomọkụ ya na-ebelata n'okpuru 300 Celsius C iji gbochie oxidation. Dabere na nkọwa ahụ dị n'elu, o doro anya na ikuku mkpuchi nke a na-agbapụ kwesịrị inye nchebe ọ bụghị naanị na ọdọ mmiri weld n'oge kwesịrị ekwesị kamakwa na mpaghara nke siri ike nke weld. N'ihi ya, a na-amasịkarị usoro ịgbapụ n'akụkụ axis nke egosiri na foto 1 n'ihi na ọ na-enye nchebe dị ukwuu ma e jiri ya tụnyere usoro mkpuchi coaxial nke egosiri na foto 2, karịsịa maka mpaghara siri ike nke weld.
Otú ọ dị, maka ụfọdụ ngwaahịa a kapịrị ọnụ, ọ dị mkpa ka ịhọrọ usoro ahụ dabere na nhazi ngwaahịa na nhazi nkwonkwo.
Nhọrọ akọwapụtara nke usoro ewebata gas nchekwa
1. Weld kwụ ọtọ
Ọ bụrụ na udi weld nke ngwaahịa ahụ kwụ ọtọ, dị ka egosiri na eserese 3, yana nhazi nkwonkwo gụnyere nkwonkwo ụkwụ, nkwonkwo ụkwụ, welds fillet, ma ọ bụ akwa welds, usoro kachasị amasị maka ụdị ngwaahịa a bụ usoro ịgbapụ n'akụkụ axis egosiri na eserese 1.
Ọgụgụ 3: Weld kwụ ọtọ
2. Planar gbachibidoro geometry weld
Dịka e gosiri na eserese 4, weld dị n'ụdị ngwaahịa a nwere ọdịdị atụmatụ mechiri emechi, dịka okirikiri, polygonal, ma ọ bụ udi ahịrị ọtụtụ akụkụ. Nhazi nkwonkwo nwere ike ịgụnye nkwonkwo butt, nkwonkwo ụkwụ, ma ọ bụ ikpo welds. Maka ụdị ngwaahịa a, usoro kachasị mma bụ iji ikuku mkpuchi coaxial nke egosiri na foto 2.
Onyonyo 4: Planar Enclosed Geometry Weld
Nhọrọ nke gas mkpuchi maka weld geometry mechiri emechi na-emetụta ịdịmma, arụmọrụ na ọnụ ahịa nrụpụta ịgbado ọkụ ozugbo. Otú ọ dị, n'ihi ihe dị iche iche nke ịgbado ọkụ, nhọrọ nke ịgbado ọkụ gas dị mgbagwoju anya na n'ezie ịgbado ọkụ usoro. Ọ na-achọ nleba anya nke ọma maka ihe ịgbado ọkụ, ụzọ ịgbado ọkụ, ọnọdụ ịgbado ọkụ, na nsonaazụ ịgbado ọkụ chọrọ. Enwere ike ikpebi nhọrọ nke gas ịgbado ọkụ kachasị mma site na ule ịgbado ọkụ iji nweta nsonaazụ ịgbado ọkụ kacha mma.
Ngosipụta vidiyo | Ilere anya maka ịgbado ọkụ laser ejiri aka
Mara ihe banyere ihe bụ Handheld Laser Welder
Vidiyo a na-akọwa ihe bụ igwe ịgbado ọkụ laser na nkentuziaka na owuwu dị mkpa ka ị mara.
Nke a bụkwa ntuziaka kacha gị tupu ịzụrụ ihe welder laser ejiri aka.
Enwere ihe nhazi nke 1000W 1500w 2000w Laser Welding Machine.
Versatail Laser Welding maka iche iche chọrọ
Na vidiyo a, anyị na-egosi ọtụtụ ụzọ ịgbado ọkụ nke ị nwere ike nweta site na iji welder laser ejiri aka mee. Onye na-agbado ọkụ laser ejiri aka nwere ike ọbụna ebe egwuregwu n'etiti onye na-agbado ọkụ na onye na-arụ ọrụ ịgbado ọkụ.
Anyị na-enye nhọrọ site na 500w ruo 3000w.
Igwe ọkụ laser ejiri aka akwadoro
Ajụjụ
- N'ịgbado ọkụ laser, ikpuchi gas bụ ihe dị mkpa eji echebe mpaghara weld site na mmetọ ikuku. Igwe ọkụ laser dị elu nke a na-eji n'ụdị ịgbado ọkụ a na-emepụta oke ọkụ, na-emepụta ọdọ mmiri a wụrụ awụ nke ígwè.
A na-ejikarị gas inert echebe ọdọ mmiri a wụrụ awụ n'oge usoro ịgbado ọkụ nke igwe ịgbado ọkụ laser. Mgbe ụfọdụ ihe na-welded, elu oxidation nwere ike ghara ịtụle. Otú ọ dị, maka ọtụtụ ngwa, helium, argon, nitrogen, na gas ndị ọzọ na-ejikarị eme ihe dị ka ihe nchebe. Ndị na-esonụ Ka anyị leba anya n'ihe kpatara igwe ịgbado ọkụ laser ji achọ gas mkpuchi mgbe ị na-agbado ọkụ.
Na ịgbado ọkụ laser, gas na-echebe ga-emetụta ọdịdị weld, ịdị mma weld, ntinye weld, na obosara ngwakọta. N'ọtụtụ ọnọdụ, ịfụ gas na-echebe ga-enwe mmetụta dị mma na weld.
- Ngwakọta Argon-HeliumNgwakọta Argon-Helium: a na-akwadokarị maka ọtụtụ ngwa ịgbado ọkụ laser aluminom dabere na ọkwa ike laser. Ngwakọta Argon-Oxygen: nwere ike inye arụmọrụ dị elu yana ịdị mma ịgbado ọkụ na-anabata.
- Gases nke a na-eji na nhazi na ntinye nke laser gas bụ ndị a: carbon dioxide (CO2), helium-neon (H na Ne), na nitrogen (N).
Ajụjụ ọ bụla gbasara ịgbado ọkụ laser ejiri aka?
Oge nzipu: Mee-19-2023