ʻO ka ʻinoʻino a me ka pale ʻana o ke Kanal Steel

ʻO ka ʻinoʻino a me ka pale ʻana o ke Kanal Steel

ʻO ke kila kanal he kila lōʻihi me ke ʻano ʻāpana kea, nona ke kila kila kalapona no ke kūkulu ʻana a me nā mīkini. He kila ʻāpana paʻakikī me kahi ʻāpana keʻa o ke ʻano. Hoʻohana nui ʻia ke kila Channel i nā hale kūkulu hale, hana kaʻa, a me nā hale ʻoihana ʻē aʻe, a hoʻohana pinepine ʻia me ka I-beams. Ma muli o kāna ʻano hana metallographic kūikawā a me ka kiʻiʻoniʻoni passivation surface, paʻakikī ke ala ʻana i ke kila kila e hoʻokō i nā hopena kemika me ka mea maʻamau a e ʻino ʻia, akā ʻaʻole hiki ke ʻā ʻia ma lalo o nā kūlana. I ka wā o ka hoʻohana ʻana i ke kila kahawai, hiki ke loaʻa nā pilikia like ʻole, a ʻo ka corrosion kekahi o nā pilikia nui. Ma muli o nā kumu ʻelua, ʻo ka ʻino ʻana o ke kila awāwa.

1. Chemical corrosion: Aila stains, lepo, waikawa, alkalis, paʻakai, etc. pili i ka ili o ka channel kila ua hoʻololi 'ia i corrosive media ma lalo o kekahi mau kumu, a me ka chemically me kekahi mau mea i loko o ke kahawai kila, ka hopena i ka kemika corrosion a ʻaʻe; Hiki i nā ʻōpala like ʻole ke hoʻopōʻino i ke kiʻiʻoniʻoni passivation, hoʻemi i ka hiki ke pale ʻia o ke kila awelika, a maʻalahi hoʻi me ka media kemika, ka hopena i ka ʻino a me ka ʻōpala.

2. Electrochemical corrosion: ʻO nā ʻōpala i hana ʻia e ka hoʻopili ʻana me nā ʻāpana kila kalapona a me ka hoʻokumu ʻia ʻana o kahi pākaukau mua me ka media corrosive, ka hopena i ka ʻino electrochemical; ʻO ka hoʻopili ʻana i nā mea ʻeleʻele e like me ka ʻoki ʻana a me ka pāpaʻi ʻana i ke ʻano corrosive e hoʻokumu i ka pākaukau mua, ka hopena i ka ʻino electrochemical; ʻO nā pōʻino kino (undercuts, pores, māwae, nele o ka hui ʻana, nele i ke komo ʻana, a me nā mea ʻē aʻe) a me nā hemahema kemika (nā kīʻaha koʻikoʻi, hoʻokaʻawale, a me nā mea ʻē aʻe) i loko o ka wahi kuʻi ʻana e hoʻokumu i kahi pākaukau mua me ke ʻano corrosive, ka hopena i ka ʻino electrochemical. .

No laila, pono e lawe ʻia nā hana kūpono a pau i ka wā o ka hana ʻana i ke kila awāwa e pale aku ai i ka hiki ʻana mai o nā kūlana corrosion a me nā inducements e like me ka hiki. ʻO kekahi ala ʻo ka hoʻohana ʻana i ka uhi ʻana i ka alumini. ʻO ka pīpī ʻana i ka uhi alumini a me ka hoʻopaʻa ʻana me ka uhi anti-corrosion hiki ke hoʻolōʻihi i ke ola lawelawe o ka uhi. Mai nā hopena noiʻi a me ka hoʻohana pono ʻana, ʻo ka zinc a i ʻole ka alumini i hoʻoheheʻe ʻia i ka ʻāpana ʻo ia ka papa lalo o nā pale anti-corrosion; ʻO ka alumini spray coating he ikaika hoʻopaʻa paʻa me ka substrate kila, kahi ola lōʻihi o ka uhi ʻana, a me nā pōmaikaʻi hoʻokele waiwai lōʻihi; ʻO ke kaʻina hana hoʻoheheʻe alumini he mea maʻalahi a kūpono no ka pale lōʻihi o nā mea nui a paʻakikī hoʻi e mālama i nā hale kila, a hiki ke hoʻohana ʻia ma ka pūnaewele.

ʻO kekahi ala ʻē aʻe, ʻo ia ka hoʻohana ʻana i ka pale galvanized anti-corrosion: hiki ke hoʻokaʻawale ʻia ke kila hoʻoheheʻe wela wela i loko o ke kila a me ke kila a me ke kila wela e like me nā kaʻina hana galvanizing. Ma hope o ka wehe ʻana i ka ʻōpala, hoʻokomo ʻia nā ʻāpana kila i loko o kahi solution zinc hehee ma kahi o 440-460 ℃ e hoʻopili i kahi papa zinc i ka ʻili o nā mea kila, a laila e hoʻokō ai i ke kumu o ka anti-corrosion. I ka lewa maʻamau, ua hoʻokumu ʻia kahi ʻāpana lahilahi a paʻa o ka zinc oxide ma ka ʻili o ka papa zinc, he mea paʻakikī ke hoʻoheheʻe ʻia i ka wai a no laila ke pāʻani nei i kahi kuleana pale ma ke kila kahawai.

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