ʻO ka hale hana paipu kila kila ikaika kū i ka corrosion
ʻO ka mea kumu o ka paipu kila anticorrosive 3PE me ka paipu kila maʻemaʻe, ka paipu kila spiral a me ka paipu kila seam pololei. ʻEkolu papa polyethylene (3PE) anticorrosive coating ua hoʻohana nui ʻia i ka ʻoihana pipeline petroleum ma muli o kona kūpaʻa ʻino maikaʻi, ka wai a me ke kinoea permeability a me nā waiwai mechanical. He mea koʻikoʻi ka pale anti-corrosion o 3PE anti-corrosion steel pipe no ke ola lawelawe o nā pipeline i kanu ʻia. Ua kanu ʻia kekahi mau paipu o ka mea like ma lalo o ka lepo no nā makahiki he nui me ka ʻole o ka corrosion, a ʻo kekahi e kahe i loko o kekahi mau makahiki. No ka mea, hoʻohana lākou i nā ʻāpana anti-corrosion o waho.
ʻO ka paipu kila anticorrosive 3PE e pili ana i ka paipu kila anticorrosive waho me 3-layer structural polyethylene coating (mapec), kahi paipu anticorrosive maʻamau i hoʻohana ʻia ma Kina. ʻO nā ʻano hana anti-corrosion ʻē aʻe he ipn8710, FBE epoxy pauka, epoxy coal tar pitch a pēlā aku. E pili ana i ka anti-corrosion o ka paia o waho o ka paipu kila. Anti corrosion ano o ka paipu kila o waho paia.
ʻO ka papa mua o ka pauka epoxy (FBE> 100um)
ʻO ka papa ʻelua o ka adhesive (AD) ʻo 170 ~ 250um
ʻO ke kolu o ka papa polyethylene (PE) he 1.8 ~ 3.7mm
I ka hoʻomaʻamaʻa, ua hui pū ʻia nā mea ʻekolu a hoʻohui ʻia i hoʻokahi, i hui pū ʻia me ka paipu kila ma hope o ka hana ʻana e hana i kahi pale anti-corrosion maikaʻi loa. Hoʻokaʻawale ʻia kona ʻano hana i ke ʻano wili a me ke ʻano hoʻoheheʻe circular.
ʻO ka 3PE anticorrosive steel pipe coating (ʻekolu-layer polyethylene anticorrosive coating) he paipu kila anticorrosive hou i hana ʻia e ka hoʻohui akamai ʻana i ka 2PE anticorrosive coating ma ʻEulopa a me ka epoxy pauka anticorrosive steel pipe coating (FBE) i hoʻohana nui ʻia ma ʻAmelika ʻAmelika. Ua ʻike ʻia a hoʻohana ʻia ma ka honua holoʻokoʻa no nā makahiki he ʻumi.
ʻO ka uhi ʻana o ka paipu kila anti-corrosion 3PE he epoxy powder anti-corrosion coating e pili ana me ka ʻili paipu kila, a ʻo ka papa waena he copolymer adhesive me ka hui hana o ka lālā. ʻO ka papa honua he polyethylene anti-corrosion coating kiʻekiʻe.
Hoʻohui ka ʻekolu PE anticorrosive coating i ka impermeability kiʻekiʻe a me nā waiwai mechanical kiʻekiʻe o ka epoxy resin a me ka polyethylene. I kēia manawa, ʻike ʻia ʻo ia ka paipu anti-corrosion coating maikaʻi loa me ka hopena maikaʻi loa a me ka hana ma ka honua, i hoʻohana ʻia i nā papahana he nui.
Hoʻokō ʻia ka maʻamau SY / t0413-2002 ma Kina a ua hoʻokō ʻia mai ʻAukake 1, 2002. ʻO ka maʻamau ka mea nui i ka polyethylene a me ka polyethylene kiʻekiʻe, a ʻo ka Vicat softening point ʻaʻole i emi iho ma mua o 110 ℃; E hoʻoholo ʻia ka mānoanoa o ka pale anti-corrosion waho e like me ka German standard din30670-1991 i hoʻomalu ʻia e ka polyethylene haʻahaʻa haʻahaʻa. Hoʻomaikaʻi maikaʻi ʻia ka ikaika hopena o ka uhi anticorrosive 3PE. Hoʻonui nui ʻo SY / t0413-2002 i ka ikaika o ka peel a me ka hopena o ka pale ʻana i ka 3PE anti-corrosion coating, e hōʻoiaʻiʻo ana e like me ka ʻeleʻele kalapona o kekahi mau mea kūikawā, ua hōʻoia ʻia ka ikaika mechanical a me ka pale ʻana o ka 3PE anti-corrosion coating, a ua hoʻonui ʻia ke alapine hoʻohālikelike o ka ikaika peel uhi hui (ʻo ia hoʻi ka ikaika o ka ʻili o ka lima hiki ke wela a me ke kāʻei hiki ke wela i ke kila kumu).
No ke kumu o ka paipu kila anti-corrosion 3PE, nui ka poʻe i ʻike i hoʻokahi mea a ʻaʻole ʻike i kekahi. Hoʻopili maoli kāna hana i kahi ākea ākea. He kūpono ia no ka hoʻolako ʻana i ka wai ma lalo o ka lepo a me ka hoʻoheheʻe ʻana, ka shotcrete ma lalo o ka honua, ka maikaʻi a me ka maikaʻi ʻole o ka ea, ka hoʻoheheʻe kinoea, ka sprinkler ahi a me nā ʻoihana paipu ʻē aʻe i loko o nā mine lanahu. E hana i ka wai, ke koena ʻōpala a me ka hoʻihoʻi ʻana i ka wai hoʻoili paipu o ka hale mana wela. He kūpono maikaʻi loa ia i ka pipeline wai o ka anti spray a me ka ʻōnaehana sprinkler. Uea pale lima lima no ka mana, kamaʻilio, expressway, etc. He mea kūpono no ka wai o nā hale kiʻekiʻe, ka wela o ka pūnaewele hoʻomehana, ka ʻenekini wai, ka hoʻoili kinoea, ka hoʻoili wai kanu a me nā pipeline ʻē aʻe. ʻO ka pipeline hoʻouna ʻaila, ka pipeline kaʻina no ka lawe ʻana i nā media corrosive ma nā ʻoihana kemika, lāʻau lapaʻau, paʻi a me nā ʻoihana kala. ʻO nā hana anti corrosion o ka paipu hoʻokuʻu ʻana i ka wai, ka paipu hoʻoheheʻe a me ka pahu biological. Hiki ke ʻōlelo ʻia he mea nui ka 3PE anti-corrosion steel paipu i ke kūkulu ʻana i kēia manawa, a ua manaʻo ʻia ma o ka hoʻonui ʻia ʻana o ka ʻepekema a me ka ʻenehana, e ʻoi aku ka maikaʻi o nā hoʻokō i ka wā e hiki mai ana.
