ʻO ka galvanizing wela, ka mea i kapa ʻia ʻo galvanizing, he ʻano ia o ka hoʻoinu ʻana i nā ʻāpana kila i loko o ka zinc hehee e loaʻa ai kahi uhi metala.hoʻohana ia i ka electrochemistry, me ka hoʻohana ʻana i ka zinc ingot ma ke ʻano he anode.Nalo nā ʻātoma zinc i kā lākou mau electrons a lilo i nā ion a hoʻoheheʻe i loko o ka electrolyte, ʻoiai ke hana nei ka mea kila ma ke ʻano he anode.Ma ka cathode, loaʻa nā ion zinc i nā electrons mai ke kila a hoʻemi ʻia i nā ʻātoma zinc i waiho ʻia ma luna o ka ʻili o ke kila e hoʻokō i kahi kaʻina hana i hoʻokumu ʻia ai ka uhi ʻana i kahi ʻano like ʻole, paʻa, a paʻa maikaʻi a i ʻole nā mea hoʻoheheʻe ʻia. E hāʻawi kēia ʻatikala iā ʻoe i ka wehewehe hohonu o nā ʻokoʻa ma waena o nā mea ʻelua.
1. Nā mānoanoa uhi like ʻole
ʻO ka uhi galvanized wela loa he papa zinc mānoanoa, ma kahi o 40 μm a ʻoi aku paha, a i ʻole kiʻekiʻe me 200 μm a ʻoi aku paha.He 10 a 20 ka nui o ka papa galvanized wela ma mua o ka papa zinc electroplated.ʻO ka electroplated zinc coating he lahilahi loa, ma kahi o 3-15μm, a ʻo ke kaumaha o ka uhi ʻana he 10-50g / m2 wale nō.
2. Okoa galvanizing nui
ʻAʻole hiki ke liʻiliʻi loa ka nui galvanizing o nā wili kila galvanized wela.ʻO ka mea maʻamau, ʻo ka liʻiliʻi loa he 50 ~ 60g/m2 ma nā ʻaoʻao ʻelua a ʻo ka nui loa he 600g/m2.Hiki ke lahilahi ka papa galvanized o nā wili kila electro galvanized, me ka liʻiliʻi o 15g/m2.Eia nō naʻe, inā makemake ʻia ka uhi ʻana e ʻoi aku ka mānoanoa, e lohi loa ka wikiwiki o ka laina hana, ʻaʻole kūpono ia no nā ʻano hana o nā ʻāpana hou.ʻO ka maʻamau, ʻo ka nui loa he 100g/m2.Ma muli o kēia, ua kaupalena nui ʻia ka hana ʻana o nā pale kila electro galvanized.
3. Heʻokoʻa keʻano o ka uhi
Aia kahi ʻāpana hui ʻāhaʻi liʻiliʻi ma waena o ka uhi zinc maʻemaʻe o ka pepa galvanized wela a me ka matrix pā kila.Ke hoʻoheheʻe ʻia ka ʻili zinc maʻemaʻe, hoʻokumu ʻia ka hapa nui o nā pua zinc, a ʻaʻahu like ka uhi a ʻaʻohe pores.ʻO nā ʻātoma zinc i loko o ka papa zinc electroplated e hoʻoheheʻe wale ʻia ma ka ʻili o ka pā kila, a pili kino i ka ʻili o ke kaula kila.Nui nā pores, hiki ke hana maʻalahi i ka pitting corrosion ma muli o ka media corrosive.No laila, ʻoi aku ka kūpaʻa o nā pā galvanized wela ma mua o ka corrosion electro galvanized plates.
4. Nā kaʻina hana wela like ʻole
Hana ʻia nā ʻāpana kila i hoʻopaʻa ʻia me ka wela me nā pā paʻakikī anu a hoʻomau ʻia a hoʻopaʻa ʻia a hoʻopaʻa ʻia ma ka laina galvanizing.Hoʻomaʻamaʻa ʻia ke kaula kila no kahi manawa pōkole a laila hoʻomaha, no laila e hoʻopili ʻia ka ikaika a me ka plasticity i kekahi ʻano.ʻOi aku ka maikaʻi o kāna hana stamping ma mua o ka ʻokoʻa like ʻole o ka pāpaʻi paʻakikī like me ka pā kila i ʻōwili ʻia ma hope o ka degreasing a me ka annealing i kahi laina hana ʻoihana.He haʻahaʻa haʻahaʻa nā kumukūʻai hana a me ka laulā noi ʻana o nā ʻāpana kila kila wela, a ua lilo i ʻano nui i ka mākeke pepa galvanized.Hoʻohana ʻia nā ʻāpana kila i hoʻohana ʻia e ka electro galvanized steel sheets ma ke ʻano he kumu waiwai, ʻo ia ka mea e hōʻoiaʻiʻo ai i ka hana like ʻana o nā lau i ʻōwili ʻia, akā ʻo kāna hana paʻakikī e hoʻonui i nā kumukūʻai hana.
5. Nā hiʻohiʻona likeʻole
ʻO ka ʻili o ka papa galvanized wela he ʻeleʻele a mālamalama, a i nā hihia koʻikoʻi aia nā pua zinc;ʻO ka papa galvanized electro he laumania a hina (ʻeleʻele).
6. Nā ʻāpana noi like ʻole a me nā kaʻina hana
ʻO ka galvanizing hot-dip he kūpono no nā mea nui a me nā mea hana;ʻO ka galvanizing wela ka hoʻopili mua ʻana i ka paipu kila.I mea e wehe ai i ka hao hao ma ka ʻili o ka paipu kila, ma hope o ka pickling, ua hele ʻia ma o ka ammonium chloride a i ʻole zinc chloride aqueous solution a i ʻole ammonium chloride a me ka chlorine.Zinc i hui pū ʻia ka pahu wai wai no ka hoʻomaʻemaʻe ʻana, a laila hoʻouna ʻia i ka pahu wela wela.
Loaʻa i ka uhi maikaʻi ka uhi ʻana o ka puʻupuʻu hao hao wela, ka uhi ʻana, ʻaʻohe hoʻohui lepo.Loaʻa iā ia nā mea maikaʻi o ka uhi ʻaʻahu, ka hoʻopili ikaika a me ke ola lawelawe lōʻihi.ʻOi aku ka maikaʻi o ke kūʻē ʻana o ka galvanizing wela i ka ʻino o ka lewa o ka hao kumu ma mua o ka electro-galvanizing.
ʻO nā pale kila Galvanized i hana ʻia e ka electroplating he hana kaʻina hana maikaʻi, akā lahilahi ka uhi ʻana a ʻaʻole maikaʻi ke kūpaʻa ʻana i ka corrosion e like me nā pale kila galvanized wela;liʻiliʻi loa ka nui o ka zinc i hoʻopili ʻia i ka electro galvanized steel coilis, a ʻo ka pā paipu waho wale nō i galvanized, ʻoiai ʻo ka galvanizing wela i loko a i waho.
Ka manawa hoʻouna: Nov-17-2023