Aluminum substrate e like me ka kūikawā 'ano o ka PCB, kona kahua noi ua lōʻihi ma luna o ka kamaʻilio, mana, mana, LED kukui a me nā 'oihana'ē aʻe, oi aku kiʻekiʻe-mana uila lako e kokoke hoʻohana alumina substrate, a me ka alumini substrate ua kaulana loa. ma muli o kāna mau hiʻohiʻona:

ʻO ka hana hoʻoheheʻe wela maikaʻi loa: E like me kā mākou e ʻike ai, he mea koʻikoʻi ka hoʻoheheʻe wela no nā lako uila mana kiʻekiʻe, a ʻo ka hiʻohiʻona nui o ka substrate alumini ʻo kāna hana hoʻoheheʻe wela maikaʻi loa, ke hoʻohālikelike ʻia me nā metala ʻē aʻe a me nā alloys, ʻoi aku ka kiʻekiʻe o ka alumini. haʻahaʻa haʻahaʻa wela, kahi e hiki ai i ka substrate alumini ke hoʻokō pono a hoʻopuehu i ka wela i hana ʻia e nā mea uila. Pēlā e hoʻomaikaʻi ai i ka hilinaʻi, kūpaʻa a me ke ola lawelawe o nā mea hana.

ʻO ka machinability ikaika: ʻoi aku ka palupalu o ka alumini i hoʻohālikelike ʻia me nā mea metala ʻē aʻe, no laila ua ikaika kona plasticity, a hiki ke hana ʻia i nā ʻano like ʻole, i pili ai i nā ʻano like ʻole o ka PCB hoʻolālā pono.

ʻOi aku ka maikaʻi o ka corrosion resistance: ʻO ka alumini i hōʻike ʻia i ka lewa, ua maʻalahi ka hana ʻana i kahi kiʻi ʻoniʻoni oxide ma ka ʻili, hiki i kēia ʻāpana o ke kiʻi ʻoniʻoni ke hāʻawi i kahi pale no ka substrate alumini, no laila ua loaʻa i ka substrate alumini kekahi mau pale corrosion, ʻoiaʻiʻo. ʻO kēia papa o ka oxide kiʻiʻoniʻoni i pane i ka alkaline kiʻekiʻe a i ʻole ka acidic kaiapuni ua lawa loa, no laila, i mea e hoʻonui ai i ka pale ʻana o ka corrosion o ka substrate alumini, I ke kaʻina hana, lawe pinepine ʻia kekahi mau kaʻina hana maʻamau e hoʻolako i ka pale ʻana o ka corrosion. hiki ke hana paʻa ke pani aluminika, a me ke pani alumini ma hope o ka mālama ʻana i ka ʻili i kekahi mau kaiapuni kūikawā.