The difference between galvanized bridge and hot-dip galvanized bridge

Kiʻi alahaka uʻi:

Alahaka Galvanized, i ʻike ʻia hoʻi he alahaka galvanized uila; ʻO ke alahaka galvanized i hoʻomaopopo ʻia he alahaka galvanized wela, ʻoiaʻiʻo, hewa ia, e like me ka paipu galvanized, ua māhele ʻia ke alahaka galvanized i ʻelua ʻano, ʻo ia hoʻi, ke anu (electric galvanized) a me ka wela-dip galvanized (hot-dip galvanized). );

ʻO ka hao a me ke kila ʻeleʻele maʻalahi i ka ea, ka wai a i ʻole ka lepo, a i ʻole ka pohō loa. ʻO ka poho kila makahiki i hana ʻia e ka corrosion e pili ana i ka 1/10 o ka huahana kila holoʻokoʻa. Ma ka lima ʻē aʻe, i mea e hana ai i nā huahana kila a me nā ʻāpana i kahi hana kūikawā ma luna o ka ʻili, a hāʻawi i kona helehelena decorative hiʻohiʻona i ka manawa like, no laila ua mālama ʻia ma ke ʻano o ka uila galvanizing.

1. Kumu:

No ka mea ʻaʻole maʻalahi ka zinc e hoʻololi i ka ea maloʻo, a ma ka ea haʻahaʻa, hiki i ka ʻili ke hana i kahi kiʻi ʻoniʻoni zinc carbonate kumu, hiki i kēia kiʻiʻoniʻoni ke pale pono i ka loko mai ka ʻino. A i ka wā e pōʻino ai ka uhi no kekahi kumu a ʻaʻole nui loa ke kumu kila, hana ka zinc a me ke kila kila i microbattery, i lilo ai ke kila kila i cathode a pale ʻia.

2. Nā ʻano hana:

1) He mānoanoa ka uhi ʻana o ka zinc, maikaʻi ka crystallization, ʻaʻahu a ʻaʻohe pores, a maikaʻi ke kūpaʻa corrosion;

2) ʻO ka papa zinc i loaʻa ma ka electroplating he maʻemaʻe a hoʻoheheʻe mālie i ka ʻakika a me ka noe alkali, hiki ke pale pono i ka matrix kila;

3) Zinc uhi i hoʻokumu ʻia e ka chromic acid passivation keʻokeʻo, waihoʻoluʻu, koa ʻōmaʻomaʻo, nani, loaʻa kekahi mea hoʻonaninani;

4) No ka maikaʻi o ka ductility o ka zinc coating, hiki ke lilo i ke anuanu blanking, ʻōwili, kulou a me nā hana ʻē aʻe me ka ʻole e hōʻino i ka uhi.

3. Laulā noi:

Me ka hoʻomohala ʻana o ka ʻepekema a me ka ʻenehana, ʻoi aku ka nui o ka ʻoihana electroplating. I kēia manawa, ua hoʻohana ʻia ka hoʻohana ʻana i ka galvanizing ma nā keʻena hana a me ka noiʻi o ka ʻoihana aupuni. No ka laʻana, ʻo ka hana ʻana i ka mīkini, ka uila, nā mea hana pololei, ka ʻoihana kemika, ka ʻoihana māmā, ka lawe ʻana, nā mea kaua, aerospace, atomic energy, a pēlā aku, he mea nui i ka hoʻokele waiwai o ka ʻāina.

uwapo wela wela(alahaka zinc wela wela)

1, ka wehewehe ʻana i ka zinc wela:

ʻO ka zinc hot dip kekahi o nā kaʻina hana uhi maikaʻi loa no ka pale ʻana i ka substrate kila. Aia i loko o ka wai wai o ka zinc, ma hope o ka hana kino a me ke kemika paʻakikī, ʻaʻole wale ma luna o ka papa kila mānoanoa ka mānoanoa o ka zinc, akā hoʻohua pū kekahi i kahi ʻāpana zinc - hao. ʻAʻole loaʻa kēia ʻano plating i nā hiʻohiʻona o ke kūpaʻa corrosion o ka galvanizing, akā loaʻa pū kekahi i ka zinc-iron alloy layer. Loaʻa iā ia kahi pale corrosion ikaika ʻaʻole hiki ke hoʻohālikelike ʻia me ka galvanizing. No laila, ʻoi aku ka maikaʻi o kēia ʻano plating no nā ʻano like ʻole o ka waikawa ikaika, ka noe alkali a me nā wahi ʻino ikaika ʻē aʻe.

2. Kumu:

Hoʻokumu ʻia ka papa zinc hot dip i ʻekolu mau ʻanuʻu ma lalo o ka wai wela kiʻekiʻe:

1) Hoʻoheheʻe ʻia ka ʻili o ka hao e ka zinc solution e hana ai i kahi papa zinc-iron alloy phase;

2) ʻO nā ion zinc i loko o ka ʻāpana huila e hoʻopuehu hou aku i ka matrix e hana i kahi ʻāpana zinc-hao miscible;

3) Hoʻopili ka ʻili o ka ʻili i ka papa zinc.

3. Nā hiʻohiʻona hana:

(1) Me kahi papa zinc maʻemaʻe mānoanoa e uhi ana i ka ʻili o ke kila, hiki iā ia ke pale aku i ka matrix kila a me ka hoʻopili ʻana i ka corrosion solution, e pale i ka matrix kila mai ka corrosion. I ka lewa maʻamau, ʻo ka ʻili o ka papa zinc e hana i kahi ʻāpana zinc oxide ʻokiʻoki loa a paʻakikī, paʻakikī ke hoʻoheheʻe ʻia i loko o ka wai, no laila ke pāʻani nei ia i kahi kuleana pale ma ka matrix kila. Inā hana ka zinc oxide a me nā mea ʻē aʻe i ka lewa i ka paʻakai zinc insoluble, ʻoi aku ka maikaʻi o ka pale ʻana i ka corrosion.

(2) Aia ka hao - zinc alloy layer, compact, i loko o ka lewa paʻakai moana a me ka lewa ʻoihana hana kūʻokoʻa kūʻokoʻa;

(3) Ma muli o ka hui paʻa, zinc-iron miscible, me ke kūpaʻa ikaika;

(4) No ka maikaʻi o ka ductility o ka zinc, ua hoʻopili paʻa ʻia kona ʻāpana paʻa a me ke kumu kila, no laila hiki i nā ʻāpana plating wela ke hoʻopaʻa anu, ʻōwili, kaha kiʻi, kulou a me nā ʻano ʻē aʻe me ka ʻole o ka hōʻino ʻana i ka uhi;

(5) Ma hope o ka galvanizing wela o nā ʻāpana hoʻolālā kila, ua like ia me kahi lāʻau annealing hoʻokahi, hiki ke hoʻomaikaʻi maikaʻi i nā waiwai mechanical o ka matrix kila, hoʻopau i ke koʻikoʻi i ka wā o ka hana ʻana a me ke kuʻi ʻana o nā ʻāpana kila, a kūpono i ka huli ʻana. o na apana hale kila.

(6) He nani a nani ka ʻili o nā mea komo ma hope o ka galvanizing wela.

(7) ʻO ka papa zinc maʻemaʻe ka papa ʻoi loa o ka papa galvanized wela, ua kokoke loa kona mau waiwai i ka zinc maʻemaʻe, ductility, no laila hiki ke maʻalahi.

4. Laulā noi:

Hoʻonui ka hoʻohana ʻana i ka galvanizing wela me ka hoʻomohala ʻana i ka ʻoihana a me ka mahiʻai. No laila, nā huahana galvanized wela i loko o ka ʻoihana (e like me nā mea hana kemika, ka ʻaila ʻaila, ka ʻimi ʻana i ka moana, ka hale metala, ka hoʻoili mana, ka hana moku, a me nā mea ʻē aʻe), ka mahiʻai (e like me: irrigation, greenhouse), kūkulu (e like me: wai a ke kinoea hoʻoili, uea casing, scaffolding, hale, Bridges, halihali, etc., ua hoʻohana nui 'ia i nā makahiki i hala iho nei ua hoʻohana nui ʻia nā huahana Hot-dip galvanized ma muli o ko lākou helehelena nani a me ke kūpaʻa maikaʻi.

ʻElua, ka ʻokoʻa ma waenauwapo sprayauwapo galvanized

He ʻokoʻa wale nō ke kaʻina hana, nā kikoʻī, nā hiʻohiʻona, ke ʻano a me ke ʻano o ke alahaka.

ʻO ka ʻokoʻa kaʻina hana ma waena o ke alahaka spray a me ke alahaka galvanized:

ʻo ka mea mua loa,uwapo galvanizeda ʻo ke alahaka hoʻoheheʻe plastik no ke alahaka uwea metala, ua hana ʻia ke alahaka galvanized me ka pā kila, ka pā hao Ke manaʻoʻiʻo nei au ʻaʻole pono e wehewehe nui loa, a ua hoʻohana ʻia ke alahaka hoʻoheheʻe ʻilika no ka hana ʻana i kahi papa o ka papa hoʻoheheʻe electrostatic ma luna o ka ʻili. o ke alahaka galvanized, no laila ua kapa ʻia ʻo ia ka plastic spraying bridge, ʻo ka hoʻomaopopo maʻalahi ʻo ke alahaka hoʻoheheʻe ʻilika ʻo ia ka mana hoʻomaikaʻi o ke alahaka galvanized, ʻoi aku ka ikaika o ka pale ʻana.