ʻO kahi nīnau maʻamau i ka hana holomua: Pono anei ʻo Electron Beam Welding (EBW) i kahi ʻōpala? ʻO ka pane pōkole he ʻae kani, ma ka hapa nui o nā hihia. ʻAʻole he mea hoʻohana wale nō ka ʻumeke wai, akā ʻo ka puʻuwai o kahi ʻōnaehana EBW maʻamau, e hiki ai i kāna mau mana kūʻokoʻa.
ʻO ke kumu o ka EBW e pili ana i ka hoʻokumu ʻana i kahi kahawai nui o nā electrons kiʻekiʻe e hoʻoheheʻe a hoʻohui i nā mea. He mea maʻalahi kēia kaʻina hana i nā molekele kinoea. I loko o kahi kaawale ʻole, e hui pū kēia mau molekala me nā electrons, e hoʻopuehu ai ka lāʻau, e nalowale ka ikehu, a me ka defocus. ʻO ka hopena, ʻo ia ka weld ākea, pololei ʻole a maikaʻi ʻole, e lanakila loa ana i ke kumu o ka pololei kikoʻī o EBW a me ke komo hohonu. Eia kekahi, ʻo ka cathode o ka pū electron, nāna e hoʻokuʻu i nā electrons, e hana ana i nā wela kiʻekiʻe loa a e hoʻoheheʻe ʻia a wela koke inā ʻike ʻia i ka ea.
No laila, ʻo High-Vacuum EBW, ke ʻano maʻamau, koi i kahi kaiapuni maʻemaʻe loa, maʻamau ma waena o 10⁻² a hiki i 10⁻⁴ Pa. No ka hoʻokō ʻana i kēia, pono ia i kahi ʻōnaehana hoʻoheheʻe lehulehu. Hoʻopau mua ka pauma roughing i ka nui o ka lewa, a ukali ʻia e kahi pamu kiʻekiʻe-vacuum, e like me ka diffusion a i ʻole turbomolecular pump, e hana ana i nā kūlana maʻemaʻe e pono ai no ka hana maikaʻi loa. Hōʻoia kēia i kahi weld contamination-free, high-integrity weld, i mea e pono ai no ka aerospace, medical, a me nā noi semiconductor.
ʻO kahi hoʻololi i ʻike ʻia ʻo Medium a i ʻole Soft-Vacuum EBW e hana ana ma ke kaomi kiʻekiʻe (ma kahi o 1-10 Pa). ʻOiai ʻo ia ka mea e hōʻemi nui ai i ka manawa pahū no ka ʻoi aku ka maikaʻi o ka huahana, pono mau ia i nā ʻōpala ʻūlū e mālama i kēia kaiapuni i hoʻomalu ʻia, haʻahaʻa haʻahaʻa e pale ai i ka hoʻopuehu nui ʻana a me ka oxidation.
ʻO ka ʻokoʻa kaulana ʻo Non-Vacuum EBW, kahi e hana ʻia ai ka weld ma ka lewa ākea. Eia naʻe, he kuhi hewa kēia. ʻOiai ua hoʻopau ʻia ke keʻena o ka mea hana, mālama ʻia ka pū electron ponoʻī ma lalo o kahi moena kiʻekiʻe. Hoʻomaka ʻia ke kukuna ma o nā ʻano puka kaomi ʻokoʻa i ka lewa. Hoʻopilikia kēia ʻano hana i ka hoʻopuehu nui ʻana a koi i ka pale X-ray ikaika, e kaupalena ana i kona hoʻohana ʻana i nā noi kikoʻī kiʻekiʻe.
I ka hopena, ʻo ka synergy ma waena o ka electron beam a me ka ʻūhā wai ka mea e wehewehe ai i kēia ʻenehana ikaika. No ka hoʻokō ʻana i ka maikaʻi kiʻekiʻe a me ka pololei i kaulana ʻia ʻo EBW, ʻaʻole he koho ka paila kīwī - he mea nui ia.
Ka manawa hoʻouna: Nov-10-2025
