ʻO HDPE Paʻa Paʻa Paipu Paʻa Paʻa Paʻa Kiʻekiʻe ka Mīkini Extrusion

(1) pili pono: pili nā ʻōnaehana paipu polyethylene e ka electrothermal fusion, a ʻoi aku ka ikaika o ka hui ma mua o ke kino paipu.

(2) haʻahaʻa haʻahaʻa haʻahaʻa hopena hopena: haʻahaʻa haʻahaʻa haʻahaʻa embrittlement wela o ka polyethylene, a hiki ke hoʻohana palekana ʻia i ka pae wela o - 60-60 ℃. I ke kūkulu ʻana i ka hoʻoilo, ʻaʻole hiki ke hoʻoheheʻe ʻia ka paipu ma muli o ke kūpaʻa maikaʻi o ka mea.

(3) maikaʻi ke koʻikoʻi kūʻē ʻana: He haʻahaʻa ka naʻau o ka HDPE, ʻoi aku ka ikaika o ka shear a me ke kūʻē ʻana maikaʻi, a ʻoi aku ka maikaʻi o kona kūʻē ʻana i ke kaiapuni.

(4) maikaʻi ke kūʻai ʻana i ka corrosion: Hiki i ka pipeline HDPE ke pale aku i ka ʻino o nā ʻano mea like ʻole, a ʻaʻole e hoʻohaʻahaʻa ʻia nā kinikona i loko o ka lepo. ʻO ka Polyethylene kahi mea hoʻokalakupua uila, no laila ʻaʻole ia e pala, ʻōpala a i ʻole ka ʻino electrochemical; Eia kekahi, ʻaʻole ia e hoʻoikaika i ka ulu ʻana o nā algae, bacteria a fungi paha.

(5) ke kūpaʻa ʻelemakule a me ke ola lōʻihi o ka lawelawe ʻana: hiki ke mālama ʻia nā paipu polyethylene i loaʻa i ka 2-2.5% kalapona ʻeleʻele i hāʻawi like ʻia ma waho a hoʻohana ʻia no 50 mau makahiki me ka ʻole o ka pōʻino ʻia e ka radiation ultraviolet.

(6) maikaʻi ʻaʻahu kūpaʻa: ʻo ka hoʻohālikelike hoʻohālikelike o ka pale ʻana ma waena o ka paipu HDPE a me ka paipu kila e hōʻike ana i ka pale ʻana o ka paipu HDPE he 4 mau manawa o ka paipu kila. Ma ke kahua o ka lawe ʻana i ka lepo, i hoʻohālikelike ʻia me ka paipu kila, ʻoi aku ka maikaʻi o ka pale ʻana o ka paipu HDPE, ʻo ia hoʻi, ʻoi aku ka lōʻihi o ka lawelawe ʻana o ka paipu HDPE a ʻoi aku ka maikaʻi o ka hoʻokele waiwai.

(7) ʻoluʻolu maikaʻi: ʻo ka maʻalahi o ka pipeline HDPE e maʻalahi ke kulou. I ka ʻenekinia, hiki ke pale ʻia nā pilikia ma ka hoʻololi ʻana i ke ala paipu. I nā manawa he nui, hiki i ka maʻalahi o ka pipeline ke hōʻemi i ka hoʻohana ʻana i nā paipu paipu a hoʻemi i ke kumukūʻai hoʻokomo.

(8) liʻiliʻi kahe kū'ē: HDPE paipu i laumania i loko o ka ili, a me kona Manning coefficient he 0.009. ʻO ka hana maʻemaʻe a me nā hiʻohiʻona non adhesion e hōʻoia i ka ʻoi aku ka nui o ka paipu HDPE ma mua o nā paipu kuʻuna, a e hōʻemi hoʻi i ka nalowale o ke kaomi a me ka hoʻoili wai ʻana i ka ikehu o ka pipeline.

(9) ʻoi aku ka maʻalahi o ka hoʻohana ʻana: ʻoi aku ka māmā o ka paipu HDPE ma mua o ka paipu paʻa, ka paipu galvanized a me ka paipu kila. He mea maʻalahi ka lawelawe a hoʻouka ʻana, a ʻo nā koi haʻahaʻa o ka hana a me nā mea pono e hoʻemi nui ʻia ke kumukūʻai hoʻokomo o ka papahana.

(10) nā ʻano hana hana hou: ʻO ka pipeline HDPE he ʻano ʻenehana kūkulu. Ma waho aʻe o ke ʻano hana ʻeli kuʻuna, hiki ke kūkulu ʻia e nā ʻano ʻenehana hou non excavation, e like me ka paipu jacking, directional drilling, lining, pipe cracking, etc. ʻae ʻia.