Nūhou

Pehea e loaʻa ai i ka pā kila i hoʻopaʻa ʻia ke kala i ka anti-corrosion? ʻO ka pā kila i hoʻopaʻa ʻia ke kala, ʻike ʻia hoʻi ʻo ka pā kila kala, ʻo ia ka hopena o ka hana hui o ka uhi ʻana, ka papa hana mua, ka primer, a me ka topcoat. Kapa mākou iā ia ʻo "ʻehā i hoʻokahi ʻōnaehana anti-corrosion o ka pā kila i uhi ʻia". Hana ʻia kā mākou papa kala i nā ʻano like ʻole o ka uhi a uhi ʻia ma o 5 mau ʻano a me 48 mau kaʻina, me nā waiwai anti rust maikaʻi loa.
ʻO ke kūpaʻa ʻino a me ke kūpaʻa maloʻo lōʻihi.

Pehea mākou e hoʻokō ai i ka anti-corrosion o nā papa kila i uhi ʻia? ʻO ka pā kila i hoʻopaʻa ʻia ke kala, ʻike ʻia hoʻi ʻo ka pā kila kala, ʻo ia ka hopena o ka hana hui o ka uhi ʻana, ka papa hana mua, ka primer, a me ka topcoat. Kapa mākou iā ia ʻo "ʻehā i hoʻokahi ʻōnaehana anti-corrosion o ka pā kila i uhi ʻia".
ʻO ka uhi ʻana o ka pā kila kala e pāʻani i kahi kuleana anti-corrosion. ʻO ka maʻalahi, hoʻonui ia i ke ola lawelawe o ka pā kila ma ka hoʻopau mau ʻana i kona uhi ponoʻī. ʻOiaʻiʻo, ʻo ke ʻano, ka maikaʻi, a me ka mānoanoa o ka uhi ʻana i nā kumu nui i ka lōʻihi o ka manawa hoʻohana ʻana. Hoʻohana nui ʻia kā mākou mau papa kila i uhi ʻia i ka galvanized, alumini zinc, galvanized alumini magnesium a me nā papa kila i uhi ʻia mai nā mea kanu kila nui, ʻoi aku ka ikaika a ʻoi aku ka maikaʻi o ka corrosion.
E kamaʻilio hou kākou e pili ana i ka papa hana mua. He ʻāpana koʻikoʻi kēia o ka anti-corrosion o nā papa kila kala, ka mea i poina pinepine ʻia. ʻO ka papa hana mua, i ʻike ʻia ʻo ka papa passivation, pono e hoʻohana i nā hopena passivation e like me ka phosphate a i ʻole chromate e hoʻoheheʻe i ka ʻili o ka substrate ma mua o ka uhi kala. ʻAʻole kēia e hoʻonui wale i ka adhesion o ka uhi, akā hoʻokani pū kekahi i ka pale ʻana i ka corrosion. Ua hōʻike ʻia ka noiʻi ʻana ma ka hoʻokolohua kūʻē kūʻē ʻana i ka paʻakai paʻakai o nā papa i uhi ʻia i ka kala galvanized, ʻoi aku ka nui o ka hāʻawi ʻana o ka maikaʻi o ka papa hana ma mua o 60%.
E kamaʻilio hou e pili ana i ka primer. Ma kekahiʻaoʻao, he kuleana ko ka primer i ka hoʻonuiʻana i ka pili o ka uhi. Ma hope o ka paʻa ʻana o ke kiʻi pena, ʻaʻole ia e hemo mai ka uhi ʻana, e pale ana i ka blistering a me ka wehe ʻana o ka uhi. Ma ka ʻaoʻao ʻē aʻe, ma muli o ka loaʻa ʻana o nā puaʻa hoʻokuʻu lohi e like me nā chromates i ka primer, hiki iā ia ke passivate i ka anode a hoʻomaikaʻi i ke kūpaʻa corrosion o ka uhi.

ʻO ka hope, e kamaʻilio e pili ana i ka topcoat. Ma waho aʻe o ka aesthetics, ʻo ka topcoat ka mea nui e pale i ka lā a pale i ka pōʻino o UV i ka uhi. Ma hope o ka hiki ʻana o ka topcoat i kahi mānoanoa, hiki iā ia ke hōʻemi i ka hana ʻana o nā micropores, a laila pale i ke komo ʻana o nā media corrosive, e hōʻemi ana i ka wai a me ka oxygen permeability o ka uhi, a pale i ka corrosion coating. ʻOkoʻa ka pale ʻana o UV a me ka nui o nā uhi like ʻole, a no ke ʻano like o ka uhi ʻana, ʻo ka mānoanoa o ka kiʻi pena ke kumu nui e pili ana i ka corrosion. Hana ʻia kā mākou papa kala kala ma ke koho ʻana i nā ʻano like ʻole o nā ʻāpana i hoʻōla ʻia i nā wela kiʻekiʻe, e hopena i ka pale ʻana i ka corrosion a me ka hana anti fading mau loa.