Ka nānā 'ana i ke ka'ina hana ili o ke kila kila ma mua o ka pena

Ka nānā 'ana i ke ka'ina hana ili o ke kila kila ma mua o ka pena

ʻO ka galvanizing wela (hot-dip galvanizing no ka pōkole) ma luna o ka ʻili o ke kila kila ka ʻenehana pale pale maʻamau a maikaʻi loa no ka hoʻomalu ʻana i ka ʻino kaiapuni o nā ʻāpana kila. Ma ke kaiapuni lewa maʻamau, hiki i ka uhi wela wela i loaʻa i kēia ʻenehana ke pale aku i nā ʻāpana kila mai ka ʻōpala no kekahi mau makahiki a i ʻole 10 mau makahiki. No nā ʻāpana me ka ʻole o nā koi anti-corrosion kūikawā, ʻaʻohe pono no ka mālama anti-corrosion kiʻekiʻe (ka hoʻopuʻi a pena paha). Eia nō naʻe, i mea e mālama ai i nā kumukūʻai hana o nā lako a me nā mea pono, e hoʻemi i ka mālama ʻana, a e hoʻolōʻihi i ke ola o ke kila kila ma nā wahi paʻakikī, pono pinepine ia e hana i ka pale lua ma luna o ka wela wela galvanized steel grating, ʻo ia hoʻi, e hoʻopili i ka uhi ʻana o ke kauwela ma luna o ka wela wela e hana i kahi ʻōnaehana anti-corrosion ʻelua.
ʻO ka maʻamau, hoʻouna ʻia nā papa kila kila ma ka pūnaewele ma hope koke o ka hoʻoulu ʻana i ka wela. I ka wā o ke kaʻina hana passivation, loaʻa kahi hopena oxidation ma ka ʻili o ka uhi wela wela a me ka interface o ka hopena passivation, e hana ana i kahi kiʻiʻoniʻoni passivation paʻa a paʻa i ka ʻili o ka papa galvanizing wela, kahi mea e hoʻonui ai i ke kūpaʻa ʻino o ka papa zinc. Eia nō naʻe, no nā pā kila kila e pono e uhi ʻia me ka primer kauwela e hana i kahi ʻōnaehana anti-corrosion ʻelua no ka pale ʻana, paʻakikī ka paʻakikī o ke kiʻiʻoniʻoni metala passivation paʻa me ka primer kauwela hope, e hopena ai i ka huhū a me ka hoʻoheheʻe ʻana o ka uhi kūlohelohe i ka wā lawelawe, e pili ana i kona hopena pale.
I mea e hoʻomaikaʻi hou aku ai i ka lōʻihi o nā pahu kila i mālama ʻia me ka galvanizing hot-dip, hiki ke hoʻopaʻa ʻia i kahi uhi kūlohelohe kūpono ma luna o kona ʻili e hana i kahi ʻōnaehana pale composite no ka pale. Hāʻawi ʻia ʻo ka ʻili o ka papa galvanized wela o ka pae kila he palahalaha, maʻalahi, a me ke ʻano bele, ʻaʻole lawa ka ikaika hoʻopaʻa ma waena o ia a me ka ʻōnaehana hoʻopili hope, hiki ke alakaʻi maʻalahi i ka huʻihuʻi, hoʻoheheʻe ʻia, a me ka hiki ʻole o ka uhi ʻana. Ma ke koho ʻana i kahi kumu mua kūpono a i ʻole kahi kaʻina hana pretreatment kūpono, hiki ke hoʻomaikaʻi ʻia ka ikaika paʻa ma waena o ka zinc coating/primer coating, a hiki ke hoʻokō ʻia ka hopena pale lōʻihi o ka ʻōnaehana pale composite.
ʻO ka ʻenehana koʻikoʻi e pili ana i ka hopena pale o ka ʻōnaehana pale pale pale kila wela-hoʻopaʻa ʻia ʻo ia hoʻi ka mālama ʻana ma mua o ka uhi ʻana. ʻO Sandblasting kekahi o nā ʻano hana lapaʻau maʻamau a hilinaʻi ʻia no ka uhi ʻana i ke kila, akā no ka palupalu ʻana o ka ili wela, ʻoi aku ka nui o ke one sandblasting a me ka nui o ke one hiki ke hoʻolilo i ka nalowale o ka papa galvanized o ka pae kila. Ma ka hoʻomalu ʻana i ke kaomi ʻana a me ka nui o ke one, ʻo ka sandblasting haʻahaʻa ma luna o ka ʻili o ka wela wela galvanized steel grating he ʻano hana lapaʻau maikaʻi loa, he hopena maikaʻi i ka hōʻike ʻana o ka primer, a ʻoi aku ka ikaika o ka hoʻopaʻa ʻana ma waena o ia a me ka papa wela wela ma mua o 5MPa.
Me ka hoʻohana ʻana i ka cyclic hydrogen primer i loaʻa ka zinc phosphate, ʻoi aku ka nui o ka hoʻopili ma waena o ka zinc coating/organic primer ma mua o 5MPa me ka ʻole o ka sandblasting. No ka ili o ka weuweu galvanized steel grating, i ka wa e hiki ole ai ke hoohana i ka sandblasting surface treatment, i ka wa e noonoo hou ai i ka organik coating ma hope, hiki ke koho i ka phosphate-containing primer, no ka mea, kōkua ka phosphate i ka primer i ka hoʻomaikaʻi ʻana i ka adhesion o ka kiʻi pena a hoʻonui i ka hopena anti-corrosion.
Ma mua o ka hoʻohana ʻia ʻana o ka primer i ke kūkulu ʻana i ka uhi ʻana, ua hoʻopaʻa ʻia a i ʻole passivated ka papa galvanized wela o ke kila kila. ʻAʻohe hopena koʻikoʻi o ka hoʻomaʻamaʻa mua ʻana i ka hoʻomaikaʻi ʻana i ka adhesion, a ʻo ka holoi ʻana i ka waiʻona ʻaʻohe hopena maikaʻi maikaʻi i ka ikaika paʻa ma waena o ka zinc coating/primer.