Paipu galvanized wela-ʻūlū

Hoʻopili ka metala hoʻoheheʻe ʻia me ka matrix hao e hana i kahi papa alloy, i hui pū ʻia ai ka matrix a me ka uhi. ʻO ka galvanizing hoʻoluʻu wela ka pickling mua ʻana i ka paipu kila, i mea e wehe ai i ka hao oxide ma luna o ka ʻili o ka paipu kila, ma hope o ka pickling, ma o ka ammonium chloride a i ʻole ka zinc chloride aqueous solution a i ʻole ammonium chloride a me ka zinc chloride i hui ʻia i ka pahu wai no ka hoʻomaʻemaʻe ʻana, a laila i loko o ka pahu plating hot dip. Loaʻa i ka galvanizing hoʻoluʻu wela nā pono o ka uhi like ʻana, ka hoʻopili ikaika a me ke ola lawelawe lōʻihi. ʻO ka hapa nui o nā kaʻina hana ma ka ʻākau e hoʻohana i ke kaʻina hana hoʻopiha hou ʻana o ka zinc o ka paipu wili pololei o ke kāʻei galvanized.

Paipu galvanized anu

ʻO ke galvanized anu ka galvanized uila, he liʻiliʻi loa ka nui o ke galvanized, he 10-50g/m2 wale nō, ʻokoʻa loa kona kūpaʻa ʻana i ka palaho ma mua o ka paipu galvanized wela. ʻO nā mea hana paipu galvanized maʻamau, i mea e hōʻoia ai i ka maikaʻi, ʻaʻole hoʻohana ka hapa nui i ka galvanizing uila (anuanu plating). ʻO nā ʻoihana liʻiliʻi wale nō me nā lako hana kahiko e hoʻohana i ka galvanizing uila, ʻoiaʻiʻo, he haʻahaʻa ke kumukūʻai o kā lākou kumukūʻai. I ka wā e hiki mai ana, ʻaʻole ʻae ʻia nā paipu galvanized anu e hoʻohana ʻia e like me nā paipu wai a me ke kinoea.

Paipu kila galvanized wela-ʻūlū

Hana ʻia nā hopena kino a me nā kemika paʻakikī ma waena o ke kumu paipu kila a me ka ʻauʻau heheʻe e hana i kahi papa hao zinc-hao paʻa me ke kūpaʻa i ka pala. Hoʻohui ʻia ka papa hao me ka papa zinc maʻemaʻe a me ka matrix paipu kila. No laila, ikaika kona kūpaʻa i ka pala.

Ma hope o ka hoʻomohala ʻana o ka paipu kila galvanized wela i nā makahiki 1960 a 1970, ua hoʻomaikaʻi nui ʻia ka maikaʻi o ka huahana, mai ka makahiki 1981 a i ka makahiki 1989 ua hāʻawi ʻia i ka makana kālā aupuni a ke Kuhina Metallurgical o nā huahana kiʻekiʻe a me ka makana kālā aupuni. Ua hoʻonui pū ʻia ka hana ʻana no nā makahiki he nui, ʻoi aku ka nui o ka huahana ma mua o 400,000 tons ma mua o 1993, ʻoi aku ka nui o ka huahana ma mua o 600,000 tons ma mua o 600,000 tons ma mua o 1999, a ua hoʻokuʻu ʻia aku i nā ʻāina a me nā wahi o Asia Hikina Hema, ʻApelika, ʻAmelika Hui Pū ʻIa, Iapana, Kelemānia. Hoʻohana nui ʻia nā paipu galvanized wela e like me nā paipu wai a me nā paipu kinoea, a ʻo nā kikoʻī maʻamau he +12.5 ~ +102 mm. Ma hope o nā makahiki 1990, ma muli o ka nānā ʻana o ka mokuʻāina i ka palekana o ke kaiapuni, ke lilo nei ka kaohi ʻana o nā ʻoihana haumia kiʻekiʻe i mea paʻakikī, ʻo ka "ʻōpala ʻekolu" i hana ʻia i ka hana ʻana o nā paipu galvanized wela-dip he paʻakikī ke hoʻoponopono, me ka wikiwiki o ka hoʻomohala ʻana o nā paipu welded kila kila, nā paipu PVC a me nā paipu composite, a me ke aupuni e hoʻolaha i ka hoʻohana ʻana i nā mea kūkulu kemika, ua kaupalena ʻia ka hoʻohana ʻana i nā paipu kila galvanized, e hana ana i ka hoʻomohala ʻana o nā paipu welded galvanized wela-dip ua hoʻopilikia nui ʻia ka Beam a me ka palena, ua hoʻomohala lohi ʻia ka paipu welded galvanized wela-dip.

Paipu kila galvanized anu

He uhi uila ka papa zinc, a ua hoʻopaʻa kūʻokoʻa ʻia ka papa zinc me ka matrix paipu kila. He lahilahi ka papa zinc, a ua hoʻopili wale ʻia ka papa zinc i ka matrix paipu kila a maʻalahi ke hāʻule. No laila, ʻaʻole maikaʻi kona kūpaʻa i ka pala. I loko o nā hale noho hou, ua pāpā ʻia ka hoʻohana ʻana i nā paipu kila galvanized anuanu e like me nā paipu hoʻolako wai.