[Ka wehewehe nui] ʻO ka polyethylene he plastic, i ʻike ʻia no kona ratio kiʻekiʻe kiʻekiʻe, hiki ke maʻalahi a me ka paʻa kemika. He kūpono ia no ka hoʻohana ʻana i ka paipu kaomi a me ka ʻole. Hana ʻia nā paipu HDPE me ka polyethylene 100 resin, me ka nui o 930-970 kg / m3, ʻo ia hoʻi he 7 mau manawa o ke kila.

ʻO ka polyethylene kahi plastic, i ʻike ʻia no kāna ratio kiʻekiʻe kiʻekiʻe, hiki ke maʻalahi a me ka paʻa kemika. He kūpono ia no ka hoʻohana ʻana i ka paipu kaomi a me ka ʻole. Hana ʻia nā paipu HDPE me ka polyethylene 100 resin, me ka nui o 930-970 kg / m3, ʻo ia hoʻi he 7 mau manawa o ke kila. ʻOi aku ka maʻalahi o ka lawe ʻana a me ka hoʻokomo ʻana i nā paipu māmā. ʻAʻole pili ka polyethylene i ke kaʻina hana ʻino electrochemical, a he mea maʻamau ka paʻakai, ka waikawa a me ka alkali. ʻAʻole e ʻino ʻia ka ʻili maʻemaʻe o ka paipu polyethylene, a haʻahaʻa ka friction, no laila ʻaʻole maʻalahi ka hoʻopili ʻia o ka paipu plastik e ka ulu ʻana o nā microorganism. ʻO ka hiki ke pale aku i ka pōʻino corrosion a me ke kahe mau e hoʻohaʻahaʻa loa i nā pono mālama o nā paipu HDPe. Hiki ke hana ʻia ka paipa polyethylene me ka resin hoʻoikaika ʻia, i helu ʻia ʻo PE100-RC, a hoʻohui ʻia e hoʻolohi i ka ulu ʻana o ka māwae. Hiki i nā paipu i hana ʻia ke ola lōʻihi, a he waiwai waiwai ka polyethylene i ke ola o ka papahana.

I kēia manawa ua hoʻoholo ʻia ka lōʻihi o nā paipu HDPe, he mea koʻikoʻi ka hoʻokele waiwai ke hoʻohana ʻia nā paipu polyethylene i nā noi ʻoihana mālama wai. Hoʻohālikelike ʻia me nā paipu hao ductile, ʻo ka maikaʻi loa o nā paipu polyethylene ʻo ia ka hiki ke pale i ka leakage. ʻElua ʻano o ka leakage pipeline: ka leaka hui, ka leaka ʻana a me ka leakage perforation, maʻalahi ke mālama.

Ka nui oPaipu HDPEaia ma waena o 1600 mm a me 3260 mm, a hiki ke hoʻohana ʻia nā paipu nui i kēia manawa ma ka mākeke. Ma waho aʻe o nā ʻōnaehana hoʻolako wai kūloko, hiki ke hoʻohana ʻia nā paipu plastik nui-diameter i hana ʻia me ka polyethylene i ka desalination o ke kai a me nā keʻena mālama wai. Hiki i nā paipu anawaena nui ke 315 knm a 1200 knm. ʻO ke anawaena nuiPaipu HDPehe lōʻihi loa a hilinaʻi. Ma hope o ke kanu ʻia ʻana i ka lepo, hiki iā ia ke holo no nā makahiki he ʻumi a koi liʻiliʻi ka mālama ʻana, no laila kūpono loa ia no nā noi hoʻōla wai. Hoʻonui ka lōʻihi o ka paipu polyethylene i ka piʻi ʻana o kona nui, e hōʻike ana i ka hana anti-vibration kupaianaha. E lawe i ka ōlaʻi o Kobe i ka makahiki 1995 ma Iapana ma ke ʻano he laʻana, ʻo ka ʻoihana kūlanakauhale; pau nā paipu ʻē aʻe a pau i hoʻokahi manawa i kēlā me kēia 3 km, a ʻo ka ʻōnaehana paipu HDPE holoʻokoʻa ʻaʻohe hemahema.

ʻO nā mea maikaʻi o ka paipu HDPE: 1. Paʻa kemika maikaʻi: ʻAʻohe polarity o HDPE, paʻa kemika maikaʻi, ʻaʻole hoʻohua i nā algae a me nā hua bacteria, ʻaʻole unahi, a he huahana pili i ke kaiapuni. 2. ʻO ka ikaika pili maikaʻi: e hoʻohana i ke kumu hoʻohui uila a i ʻole ka hui pū ʻana i ka wela, me ka liʻiliʻi o nā hono a ʻaʻohe leakage. 3. Ke kahe wai haʻahaʻa kū'ē: Ka ili o loko oPaipu HDPeHe laumania, me ka haʻahaʻa haʻahaʻa komo kū'ē coefficient a me ka nui kahe. 4. ʻO ke kūpaʻa maikaʻi i ka haʻahaʻa haʻahaʻa a me ka brittleness: ʻo ka brittleness wela (-40), a ʻaʻole pono nā hana pale kūikawā no ka hana haʻahaʻa haʻahaʻa. 5. ʻO ke kūpaʻa abrasion maikaʻi: ʻO ka ho'āʻo hoʻohālikelike o ke kū'ē abrasion o nā paipu polyethylene a me nā paipu kila e hōʻike ana i ka paleʻana o nā paipu polyethylene he 4 mau manawa o nā paipu kila. 6. Anti-aging a me ka lōʻihi o ka lawelawe ʻana: Hiki ke mālama ʻia ka paipu HDPE a hoʻohana ʻia i waho no nā makahiki 50 me ka ʻole o ka pōʻino e ka radiation ultraviolet.