Tasirin Gas Kare Gas a Walƙar Laser
Menene Gas Kare Dama Zai Iya Samu?
In waldi na Laser, zaɓin iskar gas mai karewa na iya yin tasiri mai mahimmanci akan samuwar, inganci, zurfin, da nisa na kabu na weld.
A mafi yawancin lokuta, shigar da iskar gas mai karewa yana da tasiri mai kyau a kan shingen walda yayin da rashin amfani da iskar gas ba daidai ba zai iya haifar da mummunar tasiri akan walda.
Abubuwan da suka dace da rashin dacewa na amfani da iskar gas mai karewa sune kamar haka:
Amfani Da Kyau
Amfani mara kyau
1. Ingantacciyar Kariya na Weld Pool
Ingantacciyar shigar da iskar gas mai karewa zai iya kare tafkin walda yadda ya kamata daga iskar shaka ko ma hana iskar shaka gaba daya.
1. Lalacewar Kabu
Shigar da iskar gas mara kyau na iya haifar da rashin ingancin ɗinkin walda.
2. Rage Watsawa
Daidai gabatar da iskar gas mai karewa na iya rage yawan bazuwar yayin aikin walda.
2. Fatsawa Da Rage Kayayyakin Injini
Zaɓin nau'in iskar gas ɗin da ba daidai ba zai iya haifar da fashewar walda da raguwar aikin injiniya.
3. Samar da Uniform na The Weld Seam
Ingantacciyar shigar da iskar gas mai karewa yana haɓaka ko da yaɗuwar tafkin walda yayin ƙarfafawa, yana haifar da kabu mai ɗaci da ƙayatarwa.
3. Yawan Oxidation Ko Tsangwama
Zaɓin ƙimar iskar gas ɗin da ba ta dace ba, ko babba ko ƙasa da ƙasa, na iya haifar da ƙara yawan iskar oxygen ta kabu. Hakanan yana iya haifar da tsangwama mai tsanani ga narkakkar karfe, wanda ke haifar da rugujewa ko rashin daidaituwar samuwar kabu na walda.
4. Ƙara Amfani da Laser
Daidai gabatar da iskar gas mai karewa na iya rage tasirin garkuwar tururi na ƙarfe ko gizagizai na jini akan lasar, ta haka yana ƙara ƙarfin laser.
4. Rashin isassun Kariya ko Mummunan Tasiri
Zaɓin hanyar shigar da iskar gas ɗin da ba daidai ba na iya haifar da rashin isasshen kariya na kabu ko ma yana da mummunan tasiri akan samuwar kabu.
5. Rage Weld Porosity
Daidai gabatar da iskar gas mai karewa na iya rage samuwar ramukan iskar gas a cikin kabu na walda. Ta hanyar zaɓar nau'in iskar gas mai dacewa, ƙimar kwarara, da hanyar gabatarwa, ana iya samun sakamako mai kyau.
5. Tasiri kan Zurfin Weld
Shigar da iskar gas mai karewa na iya yin wani tasiri akan zurfin walda, musamman ma a cikin walda na bakin ciki, inda yake ƙoƙarin rage zurfin walda.
Nau'ukan Gas Na Kariya Daban-daban
Abubuwan da aka saba amfani da su na kariya a waldawar laser sune nitrogen (N2), argon (Ar), da helium (He). Wadannan iskar gas suna da kaddarorin jiki da sinadarai daban-daban, wanda ke haifar da tasiri daban-daban akan kabu na walda.
1. Nitrogen (N2)
N2 yana da matsakaicin ƙarfin ionization, sama da Ar kuma ƙasa da shi. A karkashin aikin na'urar, yana yin ionizes zuwa matsakaicin digiri, yadda ya kamata ya rage samuwar gizagizai na plasma da kuma kara amfani da Laser. Duk da haka, nitrogen na iya mayar da martani ta hanyar sinadarai tare da aluminum gami da carbon karfe a wasu yanayin zafi, samar da nitrides. Wannan zai iya ƙara brittleness da kuma rage taurin na weld kabu, barnatar da shafi ta inji Properties. Sabili da haka, ba a ba da shawarar yin amfani da nitrogen a matsayin iskar gas mai karewa don aluminium alloys da carbon karfe welds. A gefe guda, nitrogen na iya amsawa da bakin karfe, samar da nitrides wanda ke haɓaka ƙarfin haɗin gwiwa. Don haka, ana iya amfani da nitrogen a matsayin iskar kariya don walda bakin karfe.
2. Argon Gas
Argon gas yana da mafi ƙarancin ionization makamashi, wanda ya haifar da mafi girma mataki na ionization karkashin Laser mataki. Wannan ba shi da kyau don sarrafa samuwar gizagizai na plasma kuma yana iya samun wani tasiri akan ingantaccen amfani da lasers. Duk da haka, argon yana da ƙananan reactivity kuma yana da wuya a sha maganin sinadarai tare da karafa na kowa. Bugu da ƙari, argon yana da tasiri. Bugu da ƙari kuma, saboda girman girmansa, argon yana nutsewa sama da tafkin walda, yana ba da kariya mafi kyau ga tafkin weld. Saboda haka, ana iya amfani da shi azaman iskar kariya ta al'ada.
3. Gas (Helium Gas)
Gas na helium yana da mafi girman ƙarfin ionization, wanda ke haifar da ƙarancin ionization a ƙarƙashin aikin laser. Yana ba da damar ingantacciyar kulawar samuwar girgijen plasma, kuma lasers na iya yin hulɗa da ƙarfe yadda ya kamata. Bugu da ƙari, helium yana da ƙarancin amsawa kuma baya jurewa da halayen sinadarai tare da karafa, yana mai da shi kyakkyawan iskar gas don garkuwar walda. Duk da haka, farashin helium yana da yawa, don haka ba a amfani da shi gabaɗaya wajen samar da samfura da yawa. Ana yawan aiki da shi a cikin binciken kimiyya ko don ƙarin samfura masu ƙima.
Hanyoyi biyu na Amfani da Gas Kariya
A halin yanzu, akwai manyan hanyoyi guda biyu don gabatar da iskar kariya: busa gefen axis da iskar kariya ta coaxial, kamar yadda aka nuna a hoto na 1 da hoto 2, bi da bi.
Hoto 1: Gas ɗin Garkuwar Ƙaƙwalwar Ƙaƙwalwa
Hoto 2: Coaxial Garkuwar Gas
Zaɓin tsakanin hanyoyin busa guda biyu ya dogara da la'akari daban-daban.
Gabaɗaya, ana ba da shawarar yin amfani da hanyar busa gefen axis don kare iskar gas.
Yadda Ake Zaɓan Gas Mai Kariya Daidai?
Da farko, yana da mahimmanci a fayyace cewa kalmar "oxidation" na welds magana ce ta baki. A ka'ida, yana nufin lalacewar ingancin walda saboda halayen sinadarai tsakanin ƙarfen walda da abubuwan da ke cutarwa a cikin iska, kamar oxygen, nitrogen, da hydrogen.
Hana oxidation na walda ya haɗa da rage ko guje wa hulɗa tsakanin waɗannan abubuwa masu cutarwa da ƙarfe mai zafi mai zafi. Wannan yanayin zafi mai zafi ya haɗa da ba kawai narkakkar walda ta tafkin ba har ma da dukan tsawon lokacin daga lokacin da ƙarfen walda ya narke har sai tafkin ya ƙarfafa kuma zafinsa yana raguwa ƙasa da wani kofa.
Tsarin walda
Alal misali, a cikin walda na titanium alloys, lokacin da zafin jiki ya wuce 300 ° C, saurin shan hydrogen yana faruwa; sama da 450 ° C, saurin iskar oxygen yana faruwa; kuma sama da 600 ° C, saurin sha nitrogen yana faruwa.
Don haka, ana buƙatar kariya mai inganci don walƙiya gami da titanium a lokacin lokacin lokacin da ya ƙarfafa kuma zafinsa yana raguwa ƙasa da 300 ° C don hana iskar oxygen. Dangane da bayanin da ke sama, a bayyane yake cewa iskar garkuwar da aka hura tana buƙatar ba da kariya ba kawai ga tafkin walda a lokacin da ya dace ba har ma da yanki mai ƙarfi na walƙiya. Don haka, hanyar busa gefen axis da aka nuna a cikin Hoto 1 gabaɗaya an fi so saboda yana ba da kariya mai yawa idan aka kwatanta da hanyar kariya ta coaxial da aka nuna a cikin Hoto 2, musamman don ƙaƙƙarfan yanki na walda.
Duk da haka, don wasu samfurori na musamman, zaɓin hanyar yana buƙatar yin la'akari da tsarin samfurin da haɗin gwiwa.
Musamman Zaɓin Hanyar Gabatar da Gas mai Kariya
1. Madaidaicin layi Weld
Idan siffar weld ɗin samfurin ta kasance madaidaiciya, kamar yadda aka nuna a hoto na 3, kuma tsarin haɗin gwiwa ya haɗa da mahaɗin gindi, mahaɗin cinya, waldar fillet, ko walda, hanyar da aka fi so don irin wannan samfurin ita ce hanyar busa gefen axis da aka nuna a hoto 1.
Hoto 3: Madaidaicin Weld
2. Planar Enclosed Geometry Weld
Kamar yadda aka nuna a hoto na 4, walda a cikin wannan nau'in samfurin yana da rufaffiyar siffa mai tsari, kamar madauwari, polygonal, ko siffar layi mai sassa da yawa. Tsarin haɗin gwiwa na iya haɗawa da mahaɗin gindi, haɗin gwiwar cinya, ko rijiyoyin walda. Don irin wannan samfurin, hanyar da aka fi so ita ce amfani da iskar garkuwar coaxial da aka nuna a hoto na 2.
Hoto 4: Planar Enclosed Geometry Weld
Zaɓin garkuwar iskar gas don walƙiya da ke tattare da tsarin lissafi yana shafar inganci, inganci, da farashin samar da walda kai tsaye. Duk da haka, saboda bambancin kayan walda, zaɓin gas ɗin walda yana da rikitarwa a ainihin hanyoyin walda. Yana buƙatar cikakken la'akari da kayan walda, hanyoyin walda, wuraren walda, da sakamakon walda da ake so. Za'a iya ƙayyade zaɓin mafi dacewa da iskar walda ta hanyar gwajin walda don cimma kyakkyawan sakamako na walda.
Nunin Bidiyo | Kallon Laser na Hannun Welding
Ƙara Sanin Abin da Ke Hannun Laser Welder
Wannan bidiyo ya bayyana abin da ke Laser walda inji da kumaumarni da tsarin da kuke buƙatar sani.
Wannan kuma shine jagorar ku na ƙarshe kafin siyan welder na hannu.
Akwai ainihin abubuwan haɗin 1000W 1500w 2000w Laser Welding Machine.
M Laser Welding ga Daban-daban Bukatun
A cikin wannan bidiyon, mun nuna hanyoyin walda da yawa waɗanda za ku iya cimma tare da walƙiyar laser na hannu. Welder Laser na hannu yana iya ma filin wasa tsakanin ɗan wasan walda da ƙwararren ma'aikacin walda.
Muna ba da zaɓuɓɓuka daga 500w har zuwa 3000w.
Nasihar Laser Welder na Hannu
FAQs
- A cikin walda na Laser, garkuwar gas wani muhimmin abu ne da ake amfani da shi don kare yankin walda daga gurɓataccen yanayi. Ƙarfin Laser mai ƙarfi da ake amfani da shi a cikin irin wannan nau'in walda yana haifar da zafi mai yawa, yana haifar da narkakkar tafki na karfe.
Ana amfani da iskar gas marar amfani da yawa don kare narkakken tafkin yayin aikin walda na injin walda na Laser. Lokacin da aka naɗe wasu kayan, ƙila ba za a yi la'akari da iskar oxygenation ba. Koyaya, ga yawancin aikace-aikacen, ana amfani da helium, argon, nitrogen, da sauran iskar gas a matsayin kariya. Masu zuwa Bari mu kalli dalilin da yasa na'urorin walda na Laser ke buƙatar garkuwar gas lokacin walda.
A cikin waldawar Laser, iskar garkuwar zata shafi sifar weld, ingancin weld, shigar walda, da faɗin fusion. A mafi yawan lokuta, busa iskar garkuwar gas zai yi tasiri mai kyau akan walda.
- Argon-Helium MixturesArgon-Helium Mixtures: gabaɗaya ana ba da shawarar don yawancin aikace-aikacen walda laser na aluminum dangane da matakin wutar lantarki. Argon-Oxygen Mixtures: na iya samar da babban inganci da ingancin walda mai karɓa.
- Gases da ake amfani da su wajen ƙira da aikace-aikacen laser gas sune kamar haka: carbon dioxide (CO2), helium-neon (H da Ne), da nitrogen (N).
Akwai Tambayoyi game da Walƙar Laser Na Hannu?
Lokacin aikawa: Mayu-19-2023