Welding Welding shine ya fi dacewa wajen inganta ingantaccen aiki da ingancin kayan bango da kuma sassan. A yau ba za mu yi magana game da fa'idodin walding ba amma mayar da hankali kan yadda za a yi amfani da gas na kare gas don waldi da kyau.
Me yasa ake amfani da iskar garkuwa da wutar Laser?
A cikin Laser Welding, Gash na garken zai shafi Weld foring, Weld Extth, zurfin Weld, da Weld nisa. A mafi yawan lokuta, busa gas mai taimako zai sami sakamako mai kyau akan Weld, amma yana iya kawo illa mai illa.
Lokacin da kuka busa gas mai kyau daidai, zai taimaka muku:
✦Yadda ya kamata kare gidan weld tafkin don rage ko ma a guji iskar shaka
✦Yadda ya kamata rage zubar da kayan da aka samar a cikin tsarin walding
✦Yadda ya kamata rage weles pores
✦Taimaka wa Weld Pool ya bazu ko'ina lokacin da Tel Musulma, saboda Weld Seam ya zo tare da tsabta da santsi da santsi
✦Hannun garkuwar ƙwayar ƙwayar cuta na ƙarfe ko girgijen Plasma akan Laser yana raguwa yadda ya kamata, kuma ingantaccen adadin lasisize yana ƙaruwa.
Muddinnau'in mai garkuwadaidai ne, zaka iya samun ingantaccen tasirin waldi. Koyaya, ba daidai ba amfani da gas na kariya na iya shafar walwala. Yin amfani da nau'in iskar mai ba daidai ba na iya haifar da CREaks a cikin Weld ko rage kayan aikin da ke welding. Yawan ƙarancin iskar gas na iya haifar da ƙarin girman oxidation na weidation da kuma tsangwani na waje na kayan ƙarfe a cikin Weld Pool, wanda ya haifar da lalacewa mara kyau.
Nau'in gidan gashi
Abubuwan da aka gama amfani da su na yau da kullun na layin laser sune N2, ar, da shi. Abubuwan da suke jikinsu da sunadarai sun bambanta, saboda haka tasirinsu akan wells ma ya bambanta.
Nitrogen (n2)
Ionizularfin ƙarfin N2 yana matsakaici, sama da na AR, kuma ƙasa da na shi. A karkashin hasken hasken rana, da ionize digiri na N2 ya tsaya akan Keyel, wanda zai iya rage samar da girgije plasma da ƙara yawan amfani da laser. Nitrogen na iya amsawa tare da alloy aluminum da carbon karfe a wani zazzabi don samar da nitries, wanda zai inganta tasiri mai zurfi a kan kayan kayan haɗin gwiwa na Weld gidajen abinci. Sabili da haka, ba a ba da shawarar yin amfani da nitrogen lokacin da walda aluminum ridoy da carbon karfe ba.
Koyaya, abin sunadarai tsakanin nitrogen da bakon karfe wanda nitrogen zai iya inganta ƙarfin kayan haɗin gwiwa, don haka waldijin bakin karfe na iya amfani da nitrogen na iya amfani da nitrogen mai.
Argon (Ar)
Ilization Ilimin Argon ba shi da sauki, da kuma matakin tazar ta zai zama mafi girma a karkashin aikin Laser. Sa'an nan, Argon, a matsayin kare mai kare kansa, ba zai iya sarrafa samuwar girgije plasma, wanda zai rage amfani da amfani da walsing welding. Tambayar ta taso: Shin Argon mummunan ɗan takara ne don waldi da iskar gas? Amsar ita ce A'a. Samun iskar iska ce, Argon yana da wahalar yin amsawa da yawancin ƙarfe, kuma ar ne mai arha don amfani. Bugu da kari, da yawa na ar yana da girma, zai iya amfani da nutse zuwa saman wuraren shakatawa na Weld Molten kuma zai iya amfani da kariya ga Weld Pool, don haka ana iya amfani da Argon azaman gas na kariya na al'ada.
Helium (shi)
Ba kamar Argon ba, Helium yana da babban ƙarfin ionization wanda zai iya sarrafa samuwar girgije plasma cikin sauƙi. A lokaci guda, Helium bai amsa tare da kowane karafa ba. Tabbas kyakkyawan zabi ne na walsing waldi. Matsalar kawai ita ce Helium tana da tsada. Don ƙiren ƙira waɗanda ke ba da samfuran ƙarfe da yawa, Helium zai ƙara yawan adadin kuɗin samarwa. Ta haka ne aka yi amfani da Heli ɗin gaba ɗaya cikin binciken kimiyya ko samfuran tare da ƙarin girma sosai.
Yadda za a busa wutar gashi?
Da farko dai, ya kamata a bayyane cewa abin da ake kira "shashada" sunan da ke cikin iska, yana haifar da lalacewa ta Weld . Yawancin lokaci, weld karfe yana amsawa da oxygen, nitrogen, da hydrogen a cikin iska a wani zazzabi.
Don hana weld daga "oxidized" na bukatar rage ko nisantar lamba tsakanin tafkin teku mai zafi amma duk lokacin da aka narke har sai da Molten pool baƙin ƙarfe shine ya karfafa kuma zazzabi yana sanyaya ƙasa zuwa wani zazzabi.
Manyan hanyoyi biyu na busa mai sa hannu
UcIsaya yana busa mai shinge a gefe, kamar yadda aka nuna a hoto 1.
UcSauran shine hanyar hurawa ce, kamar yadda aka nuna a hoto na 2.
Hoto 1.
Hoto na 2.
A takamaiman zabi na hatsarfin hatsun biyu shine cikakken la'akari da fannoni da yawa. Gabaɗaya, ana bada shawara don ɗaukar hanyar da gas mai ƙoshin lafiya.
Wasu misalai na waldi
1. Kai tsaye bead / layin waldi
Kamar yadda aka nuna a cikin Hoto na 3, Weld siffar samfurin shine layi, kuma tsarin haɗin gwiwa na iya zama babban haɗin gwiwa, lap hadin gwiwa, hadin gwiwa na kusurwa, ko mara kyau a kusurwa mai kyau. Don irin wannan samfurin, ya fi kyau mu dauko gefen-axis hurfa gas mai kariya kamar yadda aka nuna a hoto 1.
2. Rufe adadi ko yanki
Kamar yadda aka nuna a cikin Hoto na 4, Weld siffar samfurin alama ce ta rufewa kamar siffar jirgin ruwa, da sauransu haɗin gwiwa na iya zama waldi, da sauransu. Zai fi kyau mu yi amfani da hanyar gas mai kariya kamar yadda aka nuna a hoto na 2 ga wannan nau'in samfurin.
Zabi na kariya kai tsaye yana shafar ingancin waldi, da kuma ingancin kayan waldi ya fi rikitarwa da kuma buƙatar la'akari da yanayin walda, waldi hanya, walda matsayi, kazalika da bukatun waldi. Ta hanyar gwaje-gwajen da aka shirya, zaku iya zaɓar mafi kyawun walƙiyar walƙiyar walkiya don samun kyakkyawan sakamako.
Sha'awar layin laser da kuma son koyon yadda za a zabi mai garkuwa
Haɗi mai alaƙa:
Lokaci: Oct-10-2022