No ka hana ʻana i nā mea hoʻopaʻa paʻa, ʻo ka mālama ʻana i ka ʻili he kaʻina me ka hiki ʻole, nui nā mea kūʻai aku e nīnau e pili ana i nā mea hoʻopaʻa uila, ke ʻano o ka mālama ʻana i ka ʻili, ka ʻupena maʻamau e like me ka ʻike i hōʻuluʻulu ʻia e pili ana i ka ʻili o nā mea hoʻopaʻa uila. o nā ʻano, e like me: ʻeleʻele (uliuli), phosphating, hot dip zinc, dacromet, uila galvanized, chrome plating, nickel and zinc impregnation.ʻO ka hoʻomaʻamaʻa ʻana i ka ʻili o ka mea hoʻopaʻa paʻa ma o kekahi ʻano hana e hana i kahi papa uhi ma luna o ka ʻili o ka mea hana, ʻo kāna kumu e hana i ka ʻili o ka huahana i ka nani, ka hopena anti-corrosion.
ʻEwalu mau ʻano hana lapaʻau ʻili no nā wili paʻa:
1, ʻEleʻele (uliuli)
Hoʻokomo ʻia nā mea paʻa e mālama ʻia me ka ʻeleʻele i loko o ka pahu hoʻonā (145 ± 5 ℃) o ka sodium hydroxide (NaOH) a me ka sodium nitrite (NaNO2) hoʻomehana oxidant a me ka oxidation, ʻo ka ʻili o nā mea hoʻopaʻa metala i hana i kahi papa o ka magnetic Fe3O4 (Fe3O4). ) kiʻiʻoniʻoni, mānoanoa 0.6 - 0.8μm ʻeleʻele a uliuli ʻeleʻele.ʻO nā kūlana HG / 20613-2009 a me HG / T20634-2009 no nā mea hoʻopaʻa i hoʻohana ʻia i nā moku kaomi e koi i ka hana polū.
2, Phosphating
ʻO ka Phosphating kahi hana o ka hana ʻana i ke kiʻiʻoniʻoni hoʻololi kemika phosphate e ka hopena kemika a me ka electrochemical.ʻO ke kiʻi hoʻololi phosphate i kapa ʻia ʻo phosphating film.ʻO ke kumu o ka phosphating ka hāʻawi ʻana i ka pale no ka metala kumu a pale i ka metala mai ka ʻino ʻana i kekahi ʻano.Hoʻohana ʻia ma ke ʻano he kumu mua ma mua o ka pena ʻana e hoʻomaikaʻi i ka hoʻopili ʻana a me ke kūpaʻa corrosion o ke kiʻi pena;Hiki ke hoʻohana ʻia no ka hoʻohaʻahaʻa friction a me ka lubrication i ke kaʻina hana anu metala.ʻO ka maʻamau no nā ʻāpana poʻo pālua nui no nā moku kaomi e pono ai ka phosphating.
3, Hoʻoluu wela wela
Hoʻokomo ʻia ka zinc wela i ka lālā kila ma hope o ka lawe ʻia ʻana o ka ʻōpala i loko o ka hopena zinc i hoʻoheheʻe ʻia ma ke kiʻekiʻe wela ma kahi o 600 ℃, i hoʻopili ʻia ka ʻili o ka lālā kila me kahi papa zinc.ʻAʻole e emi ka mānoanoa o ka papa zinc ma lalo o 65μm no ka pā lahilahi ma lalo o 5mm, a ʻaʻole emi ma lalo o 86μm no ka pā mānoanoa 5mm a ma luna.Pēlā e pāʻani ai i ke kumu o ka pale ʻana i ka corrosion.
4. Dacroll
ʻO DACROMET kahi unuhi a me ka pōkole DACROMET, DACROMET, DACROMET rust, Dicron.ʻO ia kahi uhi anticorrosive hou me ka pauka zinc, ka pauka alumini, ka waikawa chromic a me ka wai deionized e like me nā mea nui.ʻAʻohe pilikia hydrogen embrittlement, a maikaʻi loa ka torque-preload consistency.Inā ʻaʻole i noʻonoʻo ʻia ka palekana o ka hexavalent chromium, ʻoi aku ka maikaʻi no nā mea hoʻopaʻa ikaika kiʻekiʻe me nā koi anticorrosion kiʻekiʻe.
5, Uila galvanizing
ʻO Electrogalvanizing, ʻike ʻia hoʻi he galvanizing anuanu ma ka ʻoihana, ʻo ia ke kaʻina hana o ka hoʻohana ʻana i ka electrolysis e hana i ka ʻaʻahu, paʻa a hoʻohui maikaʻi ʻia a i ʻole ka pae deposition alloy ma ka ʻili o ka mea hana.Hoʻohālikelike ʻia me nā metala ʻē aʻe, ʻoi aku ka liʻiliʻi o ka zinc a maʻalahi hoʻi e ʻaʻahu i kahi metala, kahi haʻahaʻa haʻahaʻa e pale aku ai i ka corrosion electroplating.ʻO nā ʻenehana hoʻopaʻa ʻana e pili ana i ka hoʻopaʻa ʻana i ka slot (a i ʻole ke kau kau ʻana), ka ʻōwili ʻia (kūpono no nā ʻāpana liʻiliʻi), ka uhi ʻulaʻula, ka paʻi ʻakomi a me ka hoʻopaʻa mau ʻana (kūpono no ka uea, kaʻa).
ʻO Electrogalvanizing ka mea hoʻohana maʻamau no nā mea hoʻopaʻa kālepa.He ʻoi aku ka maikaʻi a ʻoi aku ka maikaʻi o ka nānā ʻana, a hiki ke hele mai i ka ʻeleʻele a i ʻole ka ʻōmaʻomaʻo pūʻali koa.Eia nō naʻe, he laulā kāna hana anticorrosion, ʻo kāna hana anticorrosion ka haʻahaʻa loa i ka papa zinc plating (coating).General electrogalvanizing neutral paakai spray hoao ana i loko o 72 hola, aia nō hoʻi ka hoʻohana 'ana i kūikawā sealant, e hana ana i ka neutral paakai spray ho'āʻo ma mua o 200 hola, akā, ke kumu kūʻai, he 5 ~ 8 manawa o ka laulā galvanizing.
ʻO nā mea hoʻopaʻa no nā ʻāpana hoʻolālā he zinc keʻokeʻo a me ka zinc keʻokeʻo, e like me 8.8 mau kī pāʻoihana.
6, ua uhi ʻia ʻo Chrome
ʻO ka Chrome plating ka mea nui e hoʻomaikaʻi i ka paʻakikī o ka ʻili, ka nani, ka pale ʻana i ka ʻōpala.He paʻa kemika maikaʻi ka paʻi ʻana o Chromium a ʻaʻole e pane i ka alkali, sulfide, nitric acid a me ka hapa nui o nā ʻakika organik, akā hiki ke hoʻoheheʻe ʻia i loko o ka waika hydrohalic (e like me ka waikawa hydrochloric) a me ka waikawa sulfuric wela.ʻOi aku ka Chromium ma mua o ke kālā a me ka nickel no ka mea ʻaʻole ia e hoʻololi i ka waihoʻoluʻu a paʻa i kona noʻonoʻo no ka manawa lōʻihi ke hoʻohana ʻia.
7, hoʻopalapala nikela
ʻO ka Nickel plating ka mea nui i ka lole pale, anti-corrosion, anti-rust, maʻamau ka mānoanoa lahilahi o ke kaʻina hana i hoʻokaʻawale ʻia i ka electroplating a me ka kemika ʻelua mau ʻāpana.
8, Zinc impregnation
ʻO ke kumu o ka ʻenehana zincizing pauka e kau i ka mea hana zincizing a me nā ʻāpana hao a me ke kila i loko o ka umu zincizing a me ka wela a hiki i kahi 400 ℃, a e hoʻokomo nā mea zinc ikaika i loko o ka hao a me nā ʻāpana kila mai waho a i loko.I ka manawa like, hohola nā ʻātoma hao mai loko mai, kahi i hana ai i ka zinc-iron intermetallic compound, a i ʻole zinc coating, ma ka ʻili o nā ʻāpana kila.
Ka manawa hoʻouna: ʻOkakopa-30-2021