chidziwitso

Ti3AL2.5VTitanium Aloyi chubu amagwiritsidwa ntchito kwambiri muzamlengalenga, kukonza mankhwala, komanso m'mafakitale azachipatala chifukwa cha kuchuluka kwawo kwamphamvu ndi kulemera, kukana dzimbiri, komanso kuyanjana kwachilengedwe. Kumvetsetsa mawonekedwe owotcherera a machubuwa ndikofunikira pakuwonetsetsa kukhulupirika ndi magwiridwe antchito azinthu zopangidwa ndi aloyiyi. Tsamba ili labulogu lifufuza zida zapadera zowotcherera za Ti3Al2.5V titanium alloy chubu, kukambirana zovuta, njira, ndi njira zabwino zopezera ma welds apamwamba kwambiri.

Kodi njira zowotcherera zomwe Ti3Al2.5V titanium alloy chubu ndi ziti?

Pankhani kuwotcherera Ti3AL2.5VTitanium Aloyi chubu, njira zingapo zatsimikizira kukhala zothandiza. Kusankha kwa njira yowotcherera kumadalira zinthu monga makulidwe a chubu, katundu wolumikizana womwe mukufuna, komanso zofunikira pakugwiritsa ntchito. Nawa njira zowotcherera zomwe tikulimbikitsidwa kwambiri za Ti3Al2.5V titaniyamu aloyi machubu:

1. Gasi Tungsten Arc kuwotcherera (GTAW): Amatchedwanso TIG kuwotcherera, njira imeneyi chimagwiritsidwa ntchito kuwotcherera Ti3Al2.5V titaniyamu aloyi machubu. GTAW imapereka chiwongolero chabwino padziwe la weld ndipo imapanga ma weld apamwamba kwambiri, oyera. Ndiwoyenera makamaka pamachubu okhala ndi mipanda yopyapyala ndi ntchito zomwe zimafuna ma welds olondola, owoneka bwino. Njirayi imagwiritsa ntchito electrode ya tungsten yosagwiritsidwa ntchito komanso mpweya woteteza inert, makamaka argon, kuteteza dera la weld kuti lisaipitsidwe ndi mlengalenga.
2. Electron Beam Welding (EBW): Njira yowotcherera yapamwambayi ndi yabwino kujowina machubu a titaniyamu a Ti3Al2.5V pamapulogalamu omwe amafunikira kulondola kwambiri komanso madera osakhudzidwa ndi kutentha pang'ono. EBW imagwiritsa ntchito mtengo wolunjika wa ma elekitironi othamanga kwambiri kuti asungunuke ndikuphatikiza zidazo. Njirayi imachitika m'chipinda chopanda mpweya, chomwe chimathetsa kufunika koteteza gasi ndipo chimapereka chitetezo chabwino kwambiri ku kuipitsidwa kwa mlengalenga. EBW ndiyothandiza makamaka pakuwotcherera machubu okhala ndi mipanda yokhuthala ndikukwaniritsa ma welds olowera mozama.
3. Kuwotcherera kwa Laser Beam (LBW): Njirayi imagwiritsa ntchito mtanda wa laser wamphamvu kwambiri kuti usungunuke ndi kusakaniza Ti3Al2.5V titaniyamu alloy. LBW imapereka maubwino monga kuthamanga kwambiri, kupotoza pang'ono, komanso kuthekera kowotcherera m'malo ovuta kufika. Ndiwoyenera kupangira makina opangira makina ndipo imatha kupanga ma welds opapatiza, ozama komanso kutentha kochepa. LBW imagwiritsidwa ntchito nthawi zambiri kujowina machubu okhala ndi mipanda yopyapyala ndikupanga zisindikizo za hermetic pazofunikira.
4. Kuwotcherera kwa Plasma Arc (PAW): PAW ndi kusiyana kwa GTAW komwe kumagwiritsa ntchito plasma arc yochepetsetsa kuti ikwaniritse mphamvu zowonjezera mphamvu komanso kulowa mkati mozama. Njirayi ndiyothandiza kwambiri pakuwotcherera machubu owonjezera a Ti3Al2.5V titaniyamu ndipo imatha kupanga ma welds apamwamba kwambiri mwachangu kwambiri poyerekeza ndi GTAW wamba.

Mosasamala kanthu za njira yowotcherera yosankhidwa, ndikofunikira kuti pakhale malo oyera, opanda zoipitsidwa panthawi yowotcherera. Ti3Al2.5V titaniyamu alloy ndi yotakasuka kwambiri pa kutentha okwera ndipo mosavuta kuyamwa mpweya mumlengalenga, kumabweretsa embrittlement ndi kuchepetsa weld khalidwe. Chifukwa chake, kutetezedwa koyenera komanso njira zoyeretsera bwino ndizofunikira kuti mupeze zotsatira zabwino.

Kodi microstructure ya Ti3Al2.5V titaniyamu alloy imakhudza bwanji kuwotcherera kwake?

The microstructure wa Ti3AL2.5VTitanium Aloyi chubu imakhala ndi gawo lalikulu pakuzindikira kutsekemera kwake komanso zomwe zimalumikizana ndi olowa. Kumvetsetsa mgwirizano pakati pa microstructure ndi weldability ndikofunikira kuti muwongolere magawo owotcherera ndikukwaniritsa zomwe mukufuna pamakina omaliza.

Ti3Al2.5V ndi alpha-beta titanium alloy, kutanthauza kuti microstructure yake imakhala ndi magawo a alpha (hexagonal close-packed) ndi beta (body-centered cubic) magawo. Kukhalapo kwa magawo onsewa kumathandizira kuti aloyi akhale ndi mawonekedwe apadera komanso kumakhudza machitidwe ake pakuwotcherera:

1. Kusintha kwa Gawo: Pakuwotcherera, kulowetsa kwa kutentha kumayambitsa kusungunuka kwapadziko lonse ndikukhazikika kwazinthuzo. Pamene weld ikuzizira, gawo la beta limasintha kubwerera ku gawo la alpha. Kuchuluka kwa kuziziritsa komanso kupezeka kwa ma alloying kumakhudza mawonekedwe omaliza a weld and zone yokhudzidwa ndi kutentha (HAZ). Kuzizira kofulumira kungayambitse kupangika kwa gawo la martensitic alpha prime (α'), lomwe lingakhudze mawonekedwe amakina a olowa.
2. Kukula kwa Mbewu: Kutentha kwa kutentha panthawi yowotcherera kungayambitse kukula kwa tirigu mu HAZ, zomwe zingayambitse kuchepa kwa mphamvu ndi ductility. Kukula kwa mbewu kumadalira zinthu monga kulowetsa kutentha, liwiro la kuwotcherera, ndi kukula kwa mbewu zoyambira. Kuwongolera magawowa ndikofunikira kuti mukhalebe ndi zida zamakina zomwe zimafunikira mu olowa.
3. Kukula kwa Thupi: Kuwotcherera kungapangitse kusintha kwa crystallographic kapangidwe ka Ti3Al2.5V titaniyamu alloy. Kupanga mawonekedwe enieni kungakhudze mawonekedwe amakina ndi magwiridwe antchito a chigawo chowotcherera, makamaka pakugwiritsa ntchito komwe zinthu zowongolera ndizofunikira.
4. Interstitial Element Absorption: Kuchulukanso kwa titaniyamu pakutentha kokwera kumapangitsa kuti izi zitha kuyamwa zinthu zapakati monga mpweya, nayitrogeni, ndi haidrojeni. Zinthu izi zimatha kukhudza kwambiri mawonekedwe a microstructure ndi makina a weld. Kuteteza koyenera ndi kuwongolera malo owotcherera ndikofunikira kuti muchepetse kuyamwa kwa zinthu zapakati ndikusunga mawonekedwe ang'onoang'ono omwe mukufuna.

Kuti muwongolere kuwotcherera kwa machubu a titanium aloyi a Ti3Al2.5V ndikukwaniritsa mawonekedwe ang'onoang'ono ofunikira mu olowa, njira zingapo zitha kugwiritsidwa ntchito:

• Kuwongolera kulowetsedwa kwa kutentha ndi kuziziritsa kuwongolera kusintha kwa gawo ndi kukula kwa mbewu
• Kugwiritsa ntchito njira zowotcherera pulsed kulimbikitsa mbewu zabwino kwambiri mu weld ndi HAZ
• Kukhazikitsa njira zochizira kutentha kwa pambuyo pa weld kuti mukwaniritse mawonekedwe a microstructure ndikuchepetsa kupsinjika kotsalira
• Kusankha mosamala zida zodzaza zomwe zimagwirizana ndi chitsulo choyambira komanso zomwe mukufuna
• Kugwiritsa ntchito njira zapamwamba zowunikira ndikuwongolera kuti muwonetsetse kuti zowotcherera zimasinthasintha ndikuchepetsa kusiyanasiyana kwa microstructural

Poganizira za microstructural za Ti3Al2.5V titaniyamu alloy ndikugwiritsa ntchito njira zoyenera zowotcherera, ndizotheka kukwaniritsa ma welds apamwamba kwambiri omwe ali ndi makina abwino kwambiri komanso machitidwe ogwira ntchito.

Ndi zovuta ziti zomwe zimachitika pakuwotcherera machubu a Titanium alloy Ti3Al2.5V?

Kutulutsa Ti3AL2.5VTitanium Aloyi chubu ili ndi zovuta zingapo zomwe ziyenera kuthetsedwa kuti zitsimikizire kuti zowotcherera zapamwamba, zodalirika. Kumvetsetsa zovutazi ndikofunikira kuti pakhale njira zowotcherera zogwira mtima komanso kugwiritsa ntchito njira zoyenera zochepetsera. Zina mwazovuta zomwe zimachitika pakuwotcherera machubu a titaniyamu a Ti3Al2.5V ndi awa:

1. Kuipitsidwa kwa Atmospheric: Ti3Al2.5V titanium alloy imagwira ntchito kwambiri pakatentha kwambiri ndipo imatha kuyamwa mosavuta mpweya wa mumlengalenga monga oxygen, nitrogen, ndi hydrogen. Kuipitsidwa kumeneku kungayambitse kuphulika, kuchepa kwa ductility, ndi kuchepetsa kukana kwa dzimbiri mu cholumikizira chowotcherera. Kuthana ndi vutoli:
   • Gwiritsani ntchito mipweya yotchinga kwambiri (yomwe nthawi zambiri imakhala argon) ndikusunga mpweya wabwino
   • Gwiritsani ntchito njira zotchinjiriza zogwira mtima, kuphatikiza zishango zotsata ndikutsuka mpweya wamkati wa chubu
   • Onetsetsani kuti pali malo owotcherera aukhondo ndikuyeretsa bwino zoyambira ndi waya wodzaza musanayambe kuwotcherera
   • Ganizirani kugwiritsa ntchito zipinda zowotchera vacuum kapena inert-atmosphere pazovuta kwambiri
2. Malo Okhudzidwa ndi Kutentha (HAZ) Embrittlement: Kuyika kwa kutentha panthawi yowotcherera kungayambitse kusintha kwa microstructural mu HAZ, zomwe zingayambitse kuchepa kwa ductility ndi kuwonjezeka kwa chiwopsezo cha kusweka. Kuti muchepetse vuto ili:
   • Konzani zowotcherera kuti muchepetse kutentha kwinaku mukulowa mokwanira
   • Gwiritsani ntchito njira zowotcherera za pulsed kuti muzitha kuwongolera kutentha komanso kulimbikitsa mbewu zabwino kwambiri
   • Gwiritsani ntchito chithandizo cha kutentha kwa pambuyo pa weld kuti mupititse patsogolo mawonekedwe a microstructure ndi makina a HAZ
   • Ganizirani kugwiritsa ntchito njira zowotcherera zapamwamba zokhala ndi magwero otentha kwambiri, monga electron mtengo kapena kuwotcherera laser, kuti muchepetse HAZ.
3. Kusokonekera ndi Kupsinjika Kwambiri: Kutsika kwamafuta komanso kuchuluka kwamafuta a Ti3Al2.5V titaniyamu alloy kungayambitse kusokoneza kwakukulu komanso kupsinjika kotsalira pakuwotcherera. Nkhanizi zitha kukhudza kulondola kwazithunzi komanso kutopa kwa zida zowotcherera. Kuthana ndi vutoli:
   • Gwiritsani ntchito njira zoyenera zoyankhira ndi zomangira kuti muchepetse kupotoza
   • Gwiritsani ntchito njira zowotcherera moyenera komanso njira zogawira kutentha mofanana
   • Ganizirani kugwiritsa ntchito njira zowotcherera zosapanikizika kwambiri, monga friction stir welding, kuti mugwiritse ntchito moyenera
   • Gwiritsani ntchito mankhwala ochepetsa nkhawa pambuyo pa weld kuti muchepetse kupsinjika kotsalira
4. Weld Porosity: Titaniyamu alloys amatha kuwotcherera porosity, zomwe zingachepetse kwambiri mphamvu ndi kutopa kwa olowa. Porosity ikhoza kuyambitsidwa ndi zinthu monga kuipitsidwa, kutetezedwa kosayenera, kapena mpweya wotsekeka. Kuchepetsa porosity:
   • Onetsetsani kuti mwayeretsa bwino zinthu zoyambira ndi waya wodzaza musanayambe kuwotcherera
   • Konzani kuti muteteze kuchuluka kwa gasi komanso kuyikika kwa nozzle
   • Gwiritsani ntchito mpweya woteteza kwambiri komanso zida zodzaza
   • Gwiritsani ntchito njira zoyenera zowotcherera, monga kusunga arc yokhazikika komanso kuthamanga kosasinthasintha
5. Kuwongolera Mbiri ya Weld Bead: Kukwaniritsa mbiri yofananira komanso yofunikira ya weld kungakhale kovuta powotcherera machubu a Ti3Al2.5V titanium alloy, makamaka pazigawo zokhala ndi mipanda yopyapyala. Mbiri zosayenera za mikanda zingayambitse kupsinjika maganizo ndikuchepetsa kugwira ntchito pamodzi. Kuthana ndi vutoli:
   • Konzani zowotcherera, kuphatikiza zamakono, magetsi, ndi liwiro laulendo, kuti mukwaniritse mbiri yomwe mukufuna
   • Gwiritsani ntchito njira zowotcherera pulsed kuti muwongolere dziwe la weld ndikuwongolera ma geometry a mikanda
   • Khazikitsani makina owotcherera okha kuti azitha kukhazikika komanso kubwerezabwereza
   • Lingalirani kugwiritsa ntchito mapangidwe apadera olumikizana ndi njira zokonzekera kuti mulimbikitse mbiri yabwino ya mikanda

Pothana ndi zovuta zomwe wambazi mwakukonzekera mosamala, kukhathamiritsa, ndikukhazikitsa njira zabwino, ndizotheka kukwaniritsa ma welds apamwamba kwambiri, odalirika Ti3AL2.5VTitanium Aloyi chubu. Kuwongolera kosalekeza kwa njira zowotcherera, zida, ndi kuwongolera njira kupititsa patsogolo kuwotcherera kwa aloyi yofunikayi, ndikupangitsa kuti igwiritsidwe ntchito kwambiri pamafakitale osiyanasiyana.

Ku SHAANXI CXMET TECHNOLOGY CO., LTD, timanyadira zamitundu yathu yayikulu, yomwe imathandizira zosowa zosiyanasiyana zamakasitomala. Kampani yathu ili ndi luso lapadera lopanga ndi kukonza, kuwonetsetsa kuti zinthu zathu ndi zapamwamba komanso zolondola. Ndife odzipereka pazatsopano ndipo timayesetsa mosalekeza kupanga zinthu zatsopano, kutipangitsa kukhala patsogolo pamakampani athu. Ndi luso lotsogola laukadaulo, timatha kusintha ndikusintha msika womwe ukusintha mwachangu. Kuphatikiza apo, timapereka mayankho osinthika kuti akwaniritse zofunikira zamakasitomala athu. Ngati muli ndi chidwi ndi zinthu zathu kapena mukufuna kudziwa zambiri zazomwe timapereka, chonde musazengereze kutilankhula nafe pa sales@cxmet.com. Gulu lathu limakhala lokonzeka nthawi zonse kukuthandizani.

Zothandizira

1. Boyer, R., Welsch, G., & Collings, EW (1994). Materials Properties Handbook: Titanium Alloys. ASM International.
2. Kou, S. (2003). Welding Metallurgy (2nd ed.). John Wiley & Ana.
3. Donachie, MJ (2000). Titaniyamu: A Technical Guide (2nd ed.). ASM International.
4. AWS D1.9/D1.9M:2015, Structural Welding Code - Titanium. American Welding Society.
5. Peters, M., Kumpfert, J., Ward, CH, & Leyens, C. (2003). Titaniyamu aloyi kwa ntchito zazamlengalenga. Zida Zaukadaulo Zapamwamba, 5(6), 419-427.
6. Lathabai, S., Jarvis, BL, & Barton, KJ (2001). Kuyerekeza ma keyhole ndi ma weld wamba wa gasi tungsten arc mu titaniyamu yoyera yamalonda. Zakuthupi Sayansi ndi Umisiri: A, 299 (1-2), 81-93.
7. Short, AB (2009). Kuwotcherera kwa arc tungsten a α + β titanium alloys: kuwunika. Zakuthupi Sayansi ndi Zamakono, 25 (3), 309-324.
8. Akman, E., Demir, A., Canel, T., & Sınmazçelik, T. (2009). Kuwotcherera kwa laser kwa Ti6Al4V titaniyamu aloyi. Journal of Materials Processing Technology, 209(8), 3705-3713.
9. Yunlian, Q., Ju, D., Quan, H., & Liying, Z. (2000). Electron mtengo kuwotcherera, laser mtengo kuwotcherera ndi mpweya tungsten arc kuwotcherera pepala titaniyamu. Zakuthupi Sayansi ndi Umisiri: A, 280 (1), 177-181.
10. Cao, X., & Jahazi, M. (2009). Mphamvu yowotcherera pamatako a Ti-6Al-4V aloyi wowotcherera pogwiritsa ntchito laza yamphamvu kwambiri ya Nd:YAG. Optics ndi Laser mu Engineering, 47 (11), 1231-1241.