1. ʻO ka holoi ʻana i ka lepo ʻaʻole e hoʻoneʻe i ka lepo akā hoʻomaikaʻi nō hoʻi i ka pale kūloko
Hoʻohana ka ke lanakila i nā hemahema o ka ʻenehana hoʻomaʻamaʻa kuʻuna, e like me ka hoʻolilo ʻana i ka manawa, ka hana ʻana, hana ʻana i nā hana kai, a me nā mea nui, a me ka hana ʻana i ka hana nui i ka wehe ʻana i ka lepo lepo. Eia kekahi, hiki ke hoʻomoʻi hou ʻia nā pale hoʻomaʻamaʻa laser a i hoʻomaʻemaʻe ʻia ke ʻano o ka metala e hoʻomaʻemaʻe ʻia ana a me ka hoʻopili ʻana i kahi papa pale me ka mānoanoa o kekahi mau microns e pale ai i ka pilina o ka metal. Hiki i ka decontamination me ka hoʻohana ʻana i ka ʻenehana hoʻomaʻemaʻe laser e hiki ke pale i ka pale ʻana o nā mea kila e hoʻonui i ka 3 a 4 mau manawa.
2. ʻO ka koho o ke ʻano laser a me nā wavel he mana koʻikoʻi i ka hopena hoʻomaʻemaʻe
As shown in the figure, the absorption coefficients of various metals change with wavelength. At λ=916nm-1200nm, most metals have higher absorption coefficients in this band, and organic matter has relatively strong laser absorption in this band. Because of this, in terms of absorption rate, combining the comparative advantages of various aspects, fiber lasers have demonstrated unique advantages in all aspects. The organic pollution layer absorbs the laser strongly, and the temperature of the organic pollution layer quickly rises to the evaporation point to vaporize, thereby achieving the purpose of removing the pollution layer without damaging the substrate. Then determine the energy threshold of laser cleaning, the energy threshold of laser cleaning will determine the effect of laser cleaning. Selecting the appropriate laser cleaning energy threshold requires comprehensive consideration of the material's performance, microstructure, morphological defects, and the effects of laser wavelength and pulse width.
3. Hoʻolaha kūpono i ke kihi laser incidence hoʻomaopopo ka hoʻomaʻemaʻe i ka hoʻomaʻemaʻe
I ka manawa e hōʻeha ʻia ka laser ma kekahi kihi ʻihi kūpono, ua hoʻomālamalama koke ʻia ka laser ma lalo o nā ʻāpana i pili ʻia, a ka hopena i ke kaumaha thermoelastic kiʻekiʻe. Hoʻohālikelike ʻia me nā mea maʻamau, e maʻalahi ke neʻe aku i nā mea koho. Eia kekahi, ua ʻike ka noiʻi ʻana me ka hoʻonui nui o ke kihi, ʻoi aku ka nui o ka wahi o ka laser. Ke kuhi nei ka kihi i ka ʻokiʻī he 20, ʻo ka ʻāpana o ka wahi i hoʻomaʻemaʻe ʻia e pili ana i 10 mau manawa i ka ʻano maʻamau, e hoʻomaikaʻi pono i ka hoʻomaʻemaʻe ʻana o ka hoʻomaʻemaʻe ʻana o ka laser.
4. Hoʻonui i ka nui o ka hoʻopili ʻana i ka hopena hoʻomaʻemaʻe i ka hopena laser
ʻOkoʻa ka mīkini hoʻomaʻemaʻe ʻē ʻana no ka nui o ka nui o ka defocus. ʻO ka hoʻomaʻemaʻe ʻana ka hana o ka pahū o ka pahū o ka papa peʻa i ka hoʻokaʻawale ʻia ʻana, a i ka nui o ka defocusing e nui, ka hoʻokaʻawale ʻana o ke papana peʻa mai ka fragmentation a vaporization.
I mea e hōʻoia ai i ka hopena o ka hoʻomaʻemaʻe ʻana o ka laser i ka papa o nā mea kila, pono e noʻonoʻo pono i ka ʻōnaehana hoʻomaʻemaʻe o ka laser, ka hoʻomaʻemaʻe hoʻomaʻamaʻa, ka ʻano laser, ke ʻano waʻaila, ka ikaika o ka ikaika, ka mana, ka wā pulse, ka manawa pulse, a me ke kihi ʻeha laser. Hiki i ka laser pulsed ke hoʻomaʻemaʻe kūpono i ka pilina o ka ʻili o ke kala. I ka manawa o ka wavel 1010nm, ka mana o ka laser, 500W, ʻo ka nui o ka pulse he 10kHz, ka laulā pulse he 120n, ʻo ka wikiwiki ka hoʻomaʻemaʻe he 60mm / s, a ʻo ka pālolo ka 5%. ʻO ka hopena i ke kūleʻa ka mea maikaʻi loa, a ʻaʻole i loaʻa ka ʻike o ka oxygen i ka hoʻomaʻemaʻe ʻana o ka wili o ka lepo, nā wahi micro-area, nā laina a me nā kuhi. ʻO kahi wale nō ʻōnaehana hoʻoponopono ʻōnaehana o nā kaʻina hana hiki ke hana i kahi ʻōnaehana hoʻomaʻemaʻe pono laser.
Nā hola mālama: Jun-28-2020
