He aha ka zinc coated steel pipe?
Paipu kila i uhi ʻia e Zinc, i ʻike ʻia ʻo ka paipu kila galvanized, he mea hana hoʻohana nui ʻia e hui pū i ka ikaika o ke kila me nā waiwai corrosion-resistant o zinc. Ma kona kumu, he paipu kila ia i uhi ʻia me kahi papa zinc e pale aku ai i ka ʻōpala a me ka ʻino. ʻO kēia kaʻina hana uhi, i kapa ʻia ʻo galvanization, hoʻonui nui i ke ola o ka paipu a hoʻonui i kona paʻa i nā ʻano like ʻole.
ʻO ke kaʻina hana galvanization ʻo ia ka hoʻokomo ʻana i ka paipu kila i loko o ka ʻauʻau o ka zinc hehee ma nā mahana ma kahi o 860°F (460°C). I loko o kēia kaʻina hana, hana ka zinc me ka hao i loko o ke kila e hana i kahi pūʻulu o nā ʻāpana zinc-hao, i hoʻopili ʻia me kahi papa o ka zinc maʻemaʻe. Hoʻokumu kēia paʻa metallurgical i kahi pale pale ikaika e pale i ke kila mai nā mea ʻino e like me ka wai a me ka oxygen.
Hiki ke ʻokoʻa ka mānoanoa o ka uhi zinc ma muli o ka hoʻohana ʻana o ka paipu. ʻO ka maʻamau, ʻo ka mānoanoa o ka uhi mai 0.0005 a 0.0035 iniha (0.013 a 0.089 mm). ʻO ka American Society for Testing and Materials (ASTM) standard A53 e kuhikuhi ana i nā koi no nā paipu kila i uhi ʻia i ka zinc, e hōʻoiaʻiʻo ana i ka maikaʻi a me ka hana ma waena o nā mea hana like ʻole.
ʻO kekahi o nā pōmaikaʻi nui o nā paipu kila zinc-coated ʻo kā lākou waiwai hoʻōla ponoʻī. Inā ʻoki ʻia a ʻino paha ka ʻili zinc, ʻoi aku ka maikaʻi o ka ʻino ʻana o ka zinc a puni i mea e pale ai i ke kila i ʻike ʻia, kahi hana i kapa ʻia ʻo ka pale cathodic. ʻO kēia hiʻohiʻona kūʻokoʻa e hoʻomaikaʻi hou aku i ka pale ʻana o ka paipu i ka ʻino a hoʻonui i kona ola pono.
Pono e hoʻomaopopo ʻia ʻoiai ʻo nā paipu kila i uhi ʻia i ka zinc e hāʻawi i ka pale ʻana i ka corrosion maikaʻi loa, ʻaʻole kūpono lākou no nā kaiapuni āpau. Ma nā kūlana acidic nui a i ʻole ka alkaline, a i ʻole ke alo o kekahi mau kemika, hiki ke hoʻohaʻahaʻa i ka zinc coating. No laila, he mea koʻikoʻi e noʻonoʻo i ka noi kikoʻī a me nā kūlana kūlohelohe i ke koho ʻana i nā paipu kila i uhi ʻia.
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E hōʻemi i nā kumukūʻai mālama
ʻO kekahi o nā pōmaikaʻi nui o ka hoʻohana ʻana i nā paipu kila i uhi ʻia i ka zinc ʻo ko lākou hiki ke hōʻemi nui i nā kumukūʻai mālama i ke ola o ke kau ʻana. ʻO kēia ho'ēmi kumukūʻai ma muli o ke kūlana kūʻokoʻa a me ka lōʻihi o nā paipu kila galvanized i hoʻohālikelike ʻia me kā lākou mau mea hoʻohālikelike ʻole.
Hoʻohana ʻia ka zinc coating ma ke ʻano he ʻāpana mōhai, ʻoi aku ka maikaʻi o ka corroding no ka pale ʻana i ke kila o lalo. Hiki i kēia mīkini pale ke hoʻolōʻihi i ke ola o nā paipu kila ma 50 mau makahiki a ʻoi aku paha ma nā wahi he nui, e like me ka American Galvanizers Association. Hoʻololi pololei kēia ola lōʻihi i ka hoʻemi ʻana o ka hoʻoponopono ʻana a me ka hoʻololi ʻana, e alakaʻi ana i ka mālama kālā nui i ka manawa.
Ua ʻike ʻia kahi haʻawina i paʻi ʻia ma ka Journal of Construction Engineering and Management ʻoiai ke kumu kūʻai mua o paipu kila uhi zincs paha he 15-20% kiʻekiʻe ma mua o nā paipu kila i uhi ʻole ʻia, ʻo ke kumukūʻai o ke ola ma kahi o 60 mau makahiki ma kahi o 40% haʻahaʻa. Kuhi ʻia kēia ʻokoʻa i ka emi ʻana o ka pono no ka mālama, hoʻoponopono, a me ka hoʻololi ʻana i nā paipu galvanized.
Ma nā wahi ʻino, e like me nā wahi kahakai a i ʻole nā wahi ʻoihana, ʻoi aku ka nui o ka mālama ʻana i ke kumukūʻai. Ua hōʻike ʻia kahi noiʻi hihia i mālama ʻia e ka International Zinc Association i loko o kahi mea kanu ʻoihana kahakai i ka awelika o 25 mau makahiki i hoʻopaʻa ʻia i ka zinc ma mua o ka pono o ka hoʻololi ʻana, i hoʻohālikelike ʻia me 5-7 mau makahiki no nā paipu kila i uhi ʻole ʻia. ʻO kēia ʻokoʻa ka hopena i ka hōʻemi ʻana o 70% i ka nui o nā kumukūʻai nona ma kahi o 30 mau makahiki.
He mea nui e hoʻomaopopo i ka pono o ka hoʻokomo pono ʻana a me ka nānā ʻana i kēlā me kēia manawa e hoʻonui i nā pono o nā paipu kila i uhi ʻia. ʻOiai ua kūpaʻa loa kēia mau paipu i ka ʻino, ʻaʻole palekana lākou i ka pōʻino mai nā hopena kino a i ʻole ka ʻike ʻana i nā kemika. Hiki i nā mākaʻikaʻi maʻamau ke kōkua i ka ʻike mua ʻana i nā pilikia, e ʻae ana i ka hoʻoponopono ʻana i ka manawa a me ka pale ʻana i nā pōʻino nui aʻe i ka wā lōʻihi.
noi
Loaʻa ka hoʻohana nui ʻana o nā paipu kila i uhi ʻia ʻo Zinc ma nā ʻoihana like ʻole ma muli o ko lākou pale ʻana i ka corrosion maikaʻi loa, ka lōʻihi, a me ka maikaʻi o ke kumukūʻai. ʻO kā lākou versatility ka mea i koho nui ʻia i nā hale noho a me nā hale kūʻai, a me nā ʻoihana ʻoihana.
I ka ʻoihana kūkulu hale, hoʻohana mau ʻia nā paipu kila i uhi ʻia i ka zinc no nā ʻōnaehana paipu, ʻoi loa no nā laina wai anuanu. ʻO ko lākou kūpaʻa ʻana i ka ʻōpala a me ka ʻāʻī ʻana he mea kūpono ia no ka hoʻohana lōʻihi ʻana i nā hale kahi e paʻakikī ai ke kūʻai ʻana i ka paipu. Wahi a ka Copper Development Association, ʻo nā paipu kila galvanized e pili ana i ka 20% o nā ʻōnaehana wai wai noho ma ʻAmelika Hui Pū ʻIa.
ʻO ka ʻoihana mahiʻai kekahi mea hoʻohana nui o paipu kila uhi zincs. Hoʻohana pinepine ʻia lākou i nā ʻōnaehana irrigation, nā pā holoholona, a me nā hale ʻōmaʻomaʻo. ʻO kahi haʻawina i paʻi ʻia ma ka Journal of Agricultural Engineering Research ua ʻike ʻia ʻo nā paipu hoʻoheheʻe kila kila i ke ola lawelawe a hiki i 40 mau makahiki ma nā wahi mahiʻai maʻamau, ʻoi aku ka maikaʻi ma mua o nā mea ʻē aʻe.
I ka ʻoihana aila a me ke kinoea, he hana koʻikoʻi kēia mau paipu i nā noi like ʻole. Hoʻohana ʻia lākou no nā pahu punawai aila, kahi e kōkua ai ko lākou pale ʻana i ka corrosion e pale i ka pūnāwai mai ka haumia a hoʻolōʻihi i kona ola huahua. Loaʻa i ka American Petroleum Institute (API) nā kūlana kūikawā (API 5L) no nā paipu kila i uhi ʻia i ka zinc i hoʻohana ʻia i ka lawe ʻana i ka aila a me ke kinoea.
Ke hilinaʻi nui nei ka ʻoihana kaʻa i nā paipu kila i uhi ʻia me ka zinc. Hoʻohana ʻia lākou i nā ʻōnaehana hoʻopau, nā laina wahie, a me nā laina kaʻaahi, kahi e waiwai nui ai ko lākou hiki ke kū i nā wela kiʻekiʻe a kūʻē i ka corrosion. ʻO ka hōʻike a ka International Zinc Association e manaʻo ana he 17 paona (7.7 kg) ka zinc i loko o ka kaʻa maʻamau, a hoʻohana ʻia ka nui o ia mau mea i nā mea hao.
Ma nā ʻoihana kūlanakauhale, hoʻohana nui ʻia nā paipu kila zinc no nā pou kukui alanui, nā kākoʻo hōʻailona kaʻa, a me nā pale. ʻO ko lākou lōʻihi i nā kaiapuni waho e lilo lākou i koho waiwai no kēia mau noi. A haʻawina e ka National Cooperative Highway Research Program ua loaʻa i ka galvanized steel guardrails i ka awelika lawelawe ola o 50 makahiki, ke hoohalikeia me 20-30 makahiki no ka pena kila guardrails.
ʻO ka ʻoihana kai kahi ʻāpana ʻē aʻe kahi e ʻike nui ai nā paipu kila i uhi ʻia i ka zinc. Hoʻohana ʻia lākou i ka hana moku, nā kahua o waho, a me nā hoʻonohonoho awa. ʻO ko lākou hiki ke pale aku i ka ʻino wai paʻakai e kūpono loa iā lākou no kēia mau noi. Wahi a ka American Galvanizers Association, hiki i ke kila galvanised kūpono ke hoʻomau a hiki i 25 mau makahiki ma nā wahi kai koʻikoʻi me ka ʻole o ka hōʻino nui ʻana.
Mea Hana Paipu kila kila Zinc
I ke koho ʻana i kahi mea hana no nā paipu kila i uhi ʻia i ka zinc, LONGMA GROUP ke kū nei ma ke ʻano he koho kaulana. ʻIke ʻia ko lākou kūpaʻa i ka maikaʻi ma ko lākou pili ʻana i nā kūlana honua, me API 5L, ASTM A53, EN10210, a me AS / NZS 1163. ʻO kēia mau kūlana e hōʻoiaʻiʻo i kā lākou mau paipu kila zinc-coated i nā kikoʻī koʻikoʻi no ka pololei dimensional, mechanical properties, a me ka maikaʻi o ka uhi.
ʻO API 5L, i hoʻomohala ʻia e ka American Petroleum Institute, he mea koʻikoʻi loa ia no nā paipu i hoʻohana ʻia i ka ʻoihana aila a me ke kinoea. Hōʻike ia i nā koi no ka paipu laina kila maʻemaʻe a welded, me nā kikoʻī o ka zinc coating. ʻO ASTM A53, ma ka ʻaoʻao ʻē aʻe, kahi maʻamau i hoʻonohonoho ʻia e ka American Society for Testing and Materials, e uhi ana i ka hana ʻana o ka ʻeleʻele a me ka wela-hoʻopaʻa zinc-coated welded a me ka seamless steel pipe no nā noi like ʻole.
No ka poe ma ka makeke no nā paipu kila i uhi ʻia i ka zinc, Hāʻawi ʻo LONGMA GROUP i ka manawa e kūkākūkā ai i nā koi kikoʻī a e ʻimi i nā koho hoʻoponopono. Hiki i nā poʻe hoihoi ke hoʻopili pololei iā lākou ma info@longma-group.com e aʻo hou aʻe e pili ana i kā lākou huahana, e kūkākūkā i nā kikoʻī ʻenehana, a i ʻole ke noi ʻana i nā huaʻōlelo i kūpono i ko lākou pono.
