ʻO ka uhi uilaua like ia me nā ʻano hana uhi ʻē aʻe. Pono e mālama ʻia nā ʻāpana i uhi ʻia ma mua o ka uhi ʻana. He hana koʻikoʻi ka mālama ʻana i ka ʻili ma mua o ka uhi ʻana. ʻO nā ʻano hana uhi like ʻole, nā ʻano mea like ʻole a me ko lākou kūlana ʻili, no laila ʻaʻole like nā kaʻina hana a me nā ʻano hana e pono ai. ʻAʻole pili wale nā kaʻina hana lapaʻau ʻokoʻa a me ka maikaʻi o ka mālama ʻana i ka maikaʻi o ka uhi, akā ʻoi aku ka hopena o ke kumukūʻai lapaʻau. No laila, ke hoʻokō nei mākou i ka hoʻolālā ʻenehana, pono mākou ʻO ke ʻano o ka hoʻonohonoho ʻana, ke ʻano a me ke ʻano o ka ʻāina o nā ʻāpana i uhi ʻia, a me ke kaʻina hana a me ke ʻano o ka mālama ʻana me ka manaʻo ikaika, ka hopena maikaʻi a me ke kumukūʻai haʻahaʻa e koho ʻia e like me ka hiki. .
No ke aha i loaʻa ai i ka electrophoresis kahi kaʻina hana mua?
I ke kaʻina hana pretreatment o electrophoresis, aia ka hui like ʻana o ka degreasing, ka wehe ʻana i ka ʻōpala, ka phosphating, ka hoʻoponopono ʻana i ka ʻili a me nā kaʻina hana ʻē aʻe. Hiki ke ʻōlelo ʻia he mea nui ka pretreatment i ka uhi electrophoretic, e pili ana i ka paʻa o ka ʻauʻau pena electrophoretic ma hope o ka electrophoresis a me ka maikaʻi o ke kiʻi ʻoniʻoni ma ka ʻili o ka mea hana.
No ka loaʻa ʻana o ke kūpaʻa a me ka corrosion o ke kiʻi ʻoniʻoni o ka mea hana electrophoretic, hoʻohana ʻia ka phosphating treatment e like me ka pretreatment o ka uhi. ʻO ka lapaʻau Phosphating (ʻike pū ʻia ʻo phosphate chemical treatment) he ʻenehana (phosphating film) e hoʻohana ana i ka dissociation (equilibrium) pane o ka phosphoric acid e hoʻoheheʻe i nā paʻakai metala phosphate insoluble ma ka ʻili o nā substrate metala i hoʻomaʻemaʻe ʻia. ʻO ka hana o ke kiʻi phosphating ka hoʻomaikaʻi ʻana i ka adhesion a me ka corrosion resistance o ke kiʻi uhi (electrophoretic coating) i kau ʻia ma luna.
E pili ana i ka hoʻopili ʻana, ua hoʻoheheʻe ʻia nā kristal o ka kiʻi phosphide i loaʻa i ka ʻili metala, a maikaʻi ka hoʻopili ʻana o nā kristal. Eia kekahi, ua hoʻonui ʻia ka ʻili ma muli o ka like ʻole o ka ʻili o nā kristal he nui, a ua hoʻomaikaʻi ʻia ka hoʻopili ʻana o ke kiʻi uhi. A laila, me ka hoʻomaikaʻi ʻana i ka hoʻopili ʻana o ka kiʻi ʻoniʻoni, pale ʻia ka komo ʻana o nā mea hana corrosion, a hoʻomaikaʻi ʻia ka pale ʻana o ka corrosion (ʻoi aku ka hoʻonui ʻana o ka corrosion ma lalo o ke kiʻi pena).
ʻO ka uhi ʻana e blister a ʻōpala i kahi manawa pōkole me ka ʻole o ka phosphating. ʻO ka wai a me ka ea e hele ana i loko o ke kiʻi uhi e hiki i ka ʻili o ka mea hana e hana i ka ʻulaʻula a pehu i ka kiʻi pena. ʻO ka wai a me ka ea e hele ana i loko o ke kiʻi uhi e hiki i ka pale kila galvanized e hana i ke keʻokeʻo keʻokeʻo, e hana pū me ke kiʻi uhi e hana i ke kopa metala. ʻO kekahi mau manawa nui aʻe, i ʻoi aku ka ikaika o ke kiʻi uhi. ʻO ke kiʻiʻoniʻoni Phosphating kahi kiʻiʻoniʻoni hiki ʻole ke hoʻoheheʻe ʻia ma luna o ka ʻili metala e ka hopena kemika. Ma muli o kona hoʻopili maikaʻi ʻana (kino) a me ka paʻa kemika, mālama ʻia ʻo ia ma ke ʻano he pani pani pale anti-rust.
No ka loaʻa ʻana o kahi kiʻiʻoniʻoni phosphating maikaʻi a paʻa a hōʻoia i kona hoʻopili ʻana a me ka pale ʻana i ka corrosion, he mea nui ka mālama ʻana i ka pretreatment. I ka manawa like, pono e hoʻomaopopo maikaʻi i ke ʻano hoʻohālikelike kumu a me nā mea o ka mālama phosphating.
Ka manawa hoʻouna: Jul-08-2022
