Paipu ʻōlohelohe :
Ua manaʻo ʻia he ʻōlohelohe ka paipu inā ʻaʻohe ona uhi i hoʻopili ʻia. ʻO ka maʻamau, ke pau ka ʻōwili ʻana ma ka hale wili kila, hoʻouna ʻia ka mea ʻōlohelohe i kahi i hoʻolālā ʻia e pale a uhi paha i ka mea me ka uhi i makemake ʻia (kahi i hoʻoholo ʻia e nā kūlana honua o kahi e hoʻohana ʻia ai ka mea). ʻO ka paipu ʻōlohelohe ka ʻano paipu maʻamau i hoʻohana ʻia i ka ʻoihana piling a hoʻokomo pinepine ʻia i loko o ka lepo no ka hoʻohana ʻana i ke kūkulu ʻana. ʻOiai ʻaʻohe haʻawina paʻa e hōʻike ana he ʻoi aku ka paʻa o ka paipu ʻōlohelohe ma mua o ka paipu i uhi ʻia no nā noi piling, ʻo ka paipu ʻōlohelohe ka mea maʻamau no ka ʻoihana kūkulu.
Paipu Galvanizing :
ʻO ke galvanizing a i ʻole galvanization kekahi o nā ʻano uhi paipu kila kaulana loa. ʻOiai inā he nui nā waiwai maikaʻi loa o ka metala i ka wā e pili ana i ke kūpaʻa ʻana i ka corrosion a me ka ikaika tensile, pono e uhi hou ʻia me ka zinc no kahi hoʻopau maikaʻi aʻe. Hiki ke hana ʻia ke galvanizing ma nā ʻano he nui, ma muli o ka loaʻa ʻana o ke ʻano. Eia naʻe, ʻo ke ʻano hana kaulana loa, ʻo ia ka hot-dip a i ʻole ka batch dip galvanizing e pili ana i ka hoʻoluʻu ʻana o kahi paipu kila i loko o kahi ʻauʻau o ka zinc heheʻe. ʻO kahi hopena metallurgical i hana ʻia e ka hui paipu kila a me ka zinc e hana i kahi hoʻopau ma ka ʻili o ka metala e hāʻawi ana i kahi ʻano kūpaʻa i ka corrosion i ʻike ʻole ʻia ma ka paipu ma mua. ʻO kekahi pono ʻē aʻe o ka galvanizing ʻo ia nā pono kumukūʻai. ʻOiai he maʻalahi ke kaʻina hana a ʻaʻole pono i nā hana lua he nui a me ka hana hope, ʻo ia ke koho hele no nā mea hana a me nā ʻoihana he nui.
FBE - Paipu Uhi Pauka Epoxy i Hoʻopaʻa ʻia me ka Fusion :
Hāʻawi kēia uhi paipu i ka palekana maikaʻi loa no nā paipu liʻiliʻi a nui ke anawaena me nā mahana hana kūpono (-30C a 100C). Hoʻohana pinepine ʻia kāna noi no nā paipu aila, kinoea, a i ʻole nā paipu wai. ʻO ka hoʻopili maikaʻi loa e ʻae i ke kūpaʻa lōʻihi i ka pala a me ka pale ʻana i ka paipu. Hiki ke hoʻopili ʻia ʻo FBE ma ke ʻano he papa pālua e hāʻawi ana i nā waiwai kino ikaika e hōʻemi ana i ka pōʻino i ka wā e lawelawe ai, lawe ʻia, hoʻokomo ʻana, a me ka hana.
Paipu Epoxy Hoʻopaʻa Hoʻokahi Papa: Uhi mana electrostatic;
ʻO ka paipu Epoxy Anticorrosive i hoʻopaʻa ʻia i ka Fusion Papa Pālua: ka pauka epoxy ma lalo ponoʻī, a laila ka ʻili pauka epoxy.
Paipu Uhi Epoxy 3PE :
ʻO ka paipu kila i uhi ʻia me ka Epoxy 3PE me nā uhi papa 3, ʻo ka uhi FBE mua, ʻo ka waena ka papa hoʻopili, ma waho o ka papa polyethylene. ʻO ka paipu uhi 3PE kekahi huahana hou i hoʻomohala ʻia ma ke kumu uhi FBE mai ka makahiki 1980, nona nā mea hoʻopili a me nā papa PE (polyethylene). Hiki iā 3PE ke hoʻoikaika i nā waiwai mechanical o ka pipeline, ke kūpaʻa uila kiʻekiʻe, pale wai, hiki ke komo, anti-kahiko.
No nā papa mua he epoxy i hoʻopili ʻia me ka fusion, nona ka mānoanoa ʻoi aku ma mua o 100μm. (FBE>100μm)
ʻO ka papa ʻelua he mea hoʻopili, ʻo ia ka hopena e hoʻopaʻa ana i nā papa epoxy a me PE. (AD: 170 ~ 250μm)
ʻO ke kolu o nā papa he mau papa PE i hana ʻia me ka polyethylene, he mau pono ia e kū'ē i ka wai, ke kū'ē uila a me ka hōʻino kino. (φ300-φ1020mm)
No laila, ua hoʻohui ʻia ka paipu uhi 3PE me nā pono o FBE a me PE. ʻO ia ka mea i hoʻohana nui ʻia i nā paipu i kanu ʻia e halihali ana i ka wai, ke kinoea a me ka ʻaila.
Ka manawa hoʻouna: Malaki-03-2022