He aha nā koho no ka uhi ʻana i ka ʻili o ka valve butterfly?He aha nā ʻano o kēlā me kēia?

ʻO ka corrosion kekahi o nā mea nui e kumu ailele lele poino.Inlele lele palekana,lele lele ʻO ka pale ʻana i ka corrosion kahi mea nui e noʻonoʻo ai.No ka metalalele leles, ʻO ka hoʻomaʻamaʻa ʻana i ka uhi ʻana ʻo ia ke ʻano palekana maikaʻi loa.

ʻO ke kuleana ometalalele lele uhi ʻili

01. Palekana

Ma hope o ka uhi ʻia ʻana o ka ʻili metala me ka pena, ua kaʻawale ka ʻili metala mai ke kaiapuni.Hiki ke kapa ʻia kēia hopena pale.Akā, pono e kuhikuhi ʻia ʻaʻole hiki i kahi ʻāpana lahilahi o ka pena ke pāʻani i kahi kuleana pale.No ka mea, loaʻa i ka polymer kiʻekiʻe kahi ea permeability, i ka wā ʻeleʻele loa ka uhi ʻana, ʻae ʻia kona mau pores i nā molekala o ka wai a me ka oxygen e hele manuahi.Hoʻopaʻa paʻalulele leles loaʻa i nā koi koʻikoʻi ma ka mānoanoa o ka uhi epoxy ma ka ʻili.Hiki ke ʻike ʻia no ka nui o nā uhi ʻoi aku ka nui o ka waiwai ma mua o ka ʻili kila uncoated.I mea e hoʻomaikaʻi ai i ka impermeability o ka uhi ʻana, pono e hoʻohana ka anti-corrosion coating i kahi mea hana kiʻiʻoniʻoni me ka haʻahaʻa haʻahaʻa o ka ea a me ka mea hoʻopihapiha paʻa me kahi waiwai pale nui, a i ka manawa like, pono e hoʻonui ʻia ka nui o nā papa uhi. i hiki i ka uhi ke hiki i kekahi mānoanoa a paʻaʻole a porous.

02. Ka pale ʻana i ka ʻino

Ma ka hana ʻana i nā ʻāpana o loko o ka uhi me ka metala, ua hoʻoheheʻe ʻia ka ʻili metala a i ʻole e hana ʻia kahi mea pale e hoʻomaikaʻi i ka hopena pale o ka uhi.lele leleshoʻohana ʻia no nā koi kūikawā pono e hoʻolohe i ke ʻano o ka pena e pale i nā hopena koʻikoʻi.Eia kekahi, ke kila kilalele lele hoʻohana ʻia i ka pipeline aila, nā huahana degradation i hana ʻia ma lalo o ka hana a kekahi mau aila a me ka hana maloʻo ʻana o nā kopa metala hiki ke pāʻani i ka hana o nā mea hoʻopiʻi corrosion.

03. Palekana electrochemical

Hiki mai ka ʻino electrochemical ma lalo o ke kiʻiʻoniʻoni i ka wā e hoʻopili ai ka uhi dielectric permeable me ka ʻili metala.E hoʻohana i nā metala me ka ʻoihana ʻoi aku ka nui ma mua o ka hao ma ke ʻano he mea hoʻopiha i nā uhi, e like me ka zinc.E pāʻani ia i ka hana pale o ka anode mōhai, a ʻo nā huahana corrosion o ka zinc he zinc chloride kumu a me ka zinc carbonate, ka mea e hoʻopiha ai i ke āpau o ka membrane a hoʻopaʻa paʻa i ka membrane, e hōʻemi nui ana i ka ʻino a hoʻolōʻihi i ke ola o ka lawelawe.lele lele.

Hoʻohana maʻamau no nā metalalele leles

01.lele lele kino epoxy resin uhi

Loaʻa nā hiʻohiʻona penei:

ʻO ke kūpaʻa ʻino

ʻO nā pahu kila epoxy i uhi ʻia i ka corrosion maikaʻi, a ua hoʻemi nui ʻia ka ikaika o ka hoʻopaʻa ʻana me ke kaʻa.He kūpono ia no nā kūlana ʻoihana i nā wahi haʻahaʻa a i ʻole ka media hoʻopaʻapaʻa.

pili ikaika

ʻO ka loaʻa ʻana o ka polar hydroxyl a me nā paʻa ether i loko o ke kaulahao mole o nā resins epoxy e hoʻopili nui ʻia i nā mea like ʻole.He haʻahaʻa ka emi ʻana o ka epoxy resin i ka wā o ka hoʻōla ʻana, a liʻiliʻi ke koʻikoʻi kūloko i hana ʻia, a ʻaʻole maʻalahi ka hāʻule a hāʻule ʻole o ka uhi pale.

Nā waiwai uila

ʻO ka ʻōnaehana epoxy resin i hoʻōla ʻia he mea insulating maikaʻi loa me nā waiwai dielectric kiʻekiʻe, ka pale leakage o ka ʻili a me ke kūpaʻa arc.

Kūleʻa kūʻē

Kū'ē nā ʻōnaehana epoxy i hoʻōla ʻia i ka hapa nui o nā mole a hiki ke hoʻohana ʻia i nā kūlana ʻino.

02.lele lele mea paʻa pā nilon

ʻAʻole hiki ke hoʻopōʻino ʻia nā lau nylon a ua hoʻohana maikaʻi ʻia i nā noi he nui e like me ka wai, ka lepo, ka meaʻai, a me ka desalination.

moe kolohe waho

Hiki i ka uhi papa nylon ke hele i ka ho'āʻo ʻana i ka paʻakai, a ʻaʻole i ʻili ka uhi ma hope o ka hoʻokomo ʻia ʻana i loko o ka wai kai no nā makahiki he 25, no laila ʻaʻohe corrosion i nā ʻāpana metala.

kūʻē abrasion

Loaʻa i ka pale pōʻino maikaʻi loa.

kū'ē hopena

ʻAʻohe hōʻailona o ka peeling ma lalo o ka hopena ikaika.