ʻEwalu lapaʻau ʻili no nā wili hoʻopaʻa

No ka hana ʻana i nā mea hoʻopaʻa paʻa, ʻo ka mālama ʻana i ka ʻili he kaʻina me ka hiki ʻole, he nui nā mea kūʻai aku e nīnau e pili ana i nā mea hoʻopaʻa uila, ke ala o ka mālama ʻana i ka ʻili, ka pūnaewele maʻamau e like me ka ʻike i hōʻuluʻulu ʻia e pili ana i ka ʻili o nā mea hoʻopaʻa paʻa i nā ala hana maʻamau ʻewalu mau ʻano. 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.

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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.

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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.

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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, ʻo ia 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 hoʻopalapala ʻakomi a me ka hoʻopaʻa mau ʻana (kūpono no ka uwea, 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.

ʻO nā mea paʻa, ʻoiai ko lākou liʻiliʻi, hana i kahi hana koʻikoʻi

ʻO nā mea hoʻopaʻa, me ka liʻiliʻi liʻiliʻi, hana i kahi hana koʻikoʻi - hoʻohui i nā ʻano hana like ʻole, nā mea hana a me nā mea hana. ʻaʻole e hana i ka koho hewa, pono ʻoe e ʻike i nā ʻano o kēia mau huahana a me kā lākou mau hiʻohiʻona nui.

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Nui nā ala e hoʻokaʻawale ai i nā mea hoʻopaʻa. Hoʻohana kekahi o lākou i ke ola ʻana o nā kaula. No ka laʻana, ma Bulat-Metal hiki iā ʻoe ke ʻike i nā puʻu no nā hana like ʻole. He kūpono nā bolts Hex no ka hoʻohui ʻana i nā hale metala a me nā ʻāpana lako, a me nā wili paʻi ponoʻī - no ka hana hoʻoponopono e pili ana i nā mea lāʻau. ʻO ke ʻano, ka nui, nā mea a me nā ʻāpana ʻē aʻe. He ʻokoʻa ka nānā ʻana o nā wili ma luna o ka lāʻau a me ka metala - ʻo ka mea mua he kaula ʻoi aku ka lahilahi a me ka haʻalele ʻana mai ka pāpale.
I loko o ka ʻoihana hana, hoʻohana nui ʻia nā bolts structural a me nā nuts i ka hana ʻana i nā hale, nā alahaka, nā dams a me nā mea kanu mana. me ka hoʻohanaʻana i nā electrodes, e pili ana i ka pono e hoʻohui i ke kila kila a me ka beam.ʻO kēlā me kēiaʻano pili i kona mau pono pono'ī a me nā meaʻino.
Hoʻohana ʻia nā wili i hoʻohana ʻia i ke kūkulu ʻana i nā kuʻi kuʻi i ke kila kiʻekiʻe, maʻamau ka papa 10.9. ʻO ka papa 10.9 ʻo ia hoʻi ʻo ka tensile ikaika nui o ka wili hana ma kahi o 1040 N/mm2, a hiki iā ia ke kū i ka 90% o ka nui o ke kaumaha. hoʻohana ʻia i ke kino wili i ka ʻāina elastic me ka ʻole o ka deformation mau loa. Hoʻohālikelike ʻia me ka hao 4.8, ka hao 5.6, ke kila maloʻo 8.8, ʻoi aku ka ikaika o ka tensile structural a ʻoi aku ka paʻakikī o ka mālama ʻana i ka wela.

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Ka manawa hoʻouna: ʻAukake-20-2022