ʻO ka ʻokoʻa ma waena o ka paipu PE80 a me ka paipu PE100

Paipu PEaia i kēia manawa ma ka mākeke, a he huahana kamaʻāina loa ia, ʻoi aku ka poʻe i loko o ka ʻoihana.Ke haʻi ʻia nā paipu PE, noʻonoʻo koke lākou i ke kūpaʻa ʻaʻahu, ka pale ʻana i ke kaomi, ka pale ʻana i ka corrosion a me ke ola lawelawe lōʻihi.Nui nā paipu PE.ʻO nā ʻano, nā mea maka PE ua māhele ʻia i nā ʻano he nui, ua māhele ʻia nā huahana paipu PE i hana ʻia i nā ʻano he nui, ʻoi aku ka kikoʻī kikoʻī o kēia lā, he aha ka ʻokoʻa ma waena o nā kūlana o ka paipu PE80 a me ka paipu PE100?
ʻO ka mea PE he polyethylene, he ʻano mea like ʻole.He mea polymer ia i hana ʻia mai ka polyethylene.
Hoʻokaʻawale ʻia i ʻelua mau ʻāpana: polyethylene LDPE haʻahaʻa haʻahaʻa (ikaika haʻahaʻa);kiʻekiʻe kiʻekiʻe polyethylene HDPE.Hoʻokaʻawale ʻia nā mea PE i ʻelima mau māka e like me ke kūlana hui honua: ka papa PE32, ka papa PE40, ka papa PE63, ka papa PE80 a me ka papa PE100.
ʻO ka hana ʻana o nā paipu PE no nā paipu wai wai he polyethylene kiʻekiʻe (HDPE), a ʻo kāna mau māka ʻo PE80 a me PE100 (e like me ka pōkole o ka Minimum Required Strength, MRS).ʻO ka MRS o PE80 hiki i 8MPa;hiki i ka MRS o PE100 i 10MPa.ʻO ka MRS e pili ana i ka ikaika o ke koʻikoʻi tensile o ka paipu (waiwai helu i hoʻāʻo ʻia e like me nā kūlana honua).
ʻO PE80 (8.00 ~ 9.99Mpa) kahi masterbatch me ka antimony trioxide content o 80% ma ka polyethylene substrate, hiki ke hoʻohana nui ʻia i ka hoʻolei ʻana a me ka hana kiʻiʻoniʻoni i ka manawa like.ʻO ia kahi masterbatch ʻoi aku ka palekana i ka hana ʻana ma mua o nā pauka kuʻuna, maʻalahi e haku i ke ʻano, a ua manaʻo ʻia hoʻi he masterbatch kumu nui, ʻo ia ke kahe manuahi ma ke ʻano granular.
ʻO PE100 (10.00～11.19Mpa) ka helu o nā māka i loaʻa ma ka hoʻopuni ʻana i ka ikaika haʻahaʻa i koi ʻia (MRS) o nā mea maka polyethylene.Wahi a GB / T18252, ua hoʻoholo ʻia ka ikaika hydrostatic o ka mea e pili ana i ka 20 ℃, 50 mau makahiki a me ka manaʻo o 97.5% e like me GB / T18252.σLPL, e hoohuli i ka MRS, a e hoonui i ka MRS me 10 e loaa ka helu helu o ka mea.
Inā hoʻopili ʻia nā paipu a me nā mea pono i hana ʻia mai nā pae like ʻole o ka polyethylene raw material, e hoʻokau ʻia nā hui i kahi hoʻokolohua hydraulic.Ma keʻano laulā, PE63, PE80, PE100 hui pū me ka hoʻoheheʻe kahe (MFR) (190 ° C / 5kg) ma waena o 0.2g / 10min a me 1.3g / 10min pono e noʻonoʻo ʻia e hui pū ʻia a hiki ke hoʻopili ʻia kekahi i kekahi.Pono e ho'āʻo ʻia nā mea maka ma waho o kēia pae e hoʻoholo ai.
1. He aha ka PE100 polyethylene paipu?
Hoʻomaopopo ʻia ka hoʻomohala ʻana o nā mea paipu polyethylene i ʻekolu mau hanauna, ʻo ia hoʻi ʻekolu mau pae hoʻomohala:
ʻO ka hanauna mua, polyethylene haʻahaʻa haʻahaʻa a me "type one" polyethylene kiʻekiʻe, maikaʻi ʻole ka hana a ua like ia me nā mea paipu polyethylene i kēia manawa ma lalo o PE63.
ʻO ka lua o ka hanauna, i ʻike ʻia i ka makahiki 1960, he mea paipu polyethylene pipe medium-density me ka ikaika hydrostatic lōʻihi lōʻihi a me ke kūpaʻa māwae, i kapa ʻia i kēia manawa PE80 grade polyethylene pipe material.
ʻO ke kolu o ka hanauna, i ʻike ʻia i ka makahiki 1980, ua kapa ʻia ʻo ke kolu o ka hanauna polyethylene pipe mea kūikawā PE100.PE100 'o ia ho'i, ma 20°C, hiki i ka paipu polyethylene ke malama i ka ikaika ha'aha'a i koi 'ia MRS o 10MPa ma hope o 50 makahiki, a he ku'e maikai loa ia i ka ulu ana o ka poha.
2. He aha nā pōmaikaʻi nui o ka paipu polyethylene PE100?
Loaʻa i ka PE100 nā waiwai maikaʻi a pau o ka polyethylene, a ua hoʻomaikaʻi maikaʻi ʻia kona mau mea mechanical, kahi e loaʻa ai i ka PE100 nā pono kūikawā he nui a hoʻohana ʻia i nā kula ʻoi aku.
2.1 ʻOi aku ka ikaika o ke kaomi ʻana
No ka PE100 resin ka palena iki o 10MPa ikaika, ʻoi aku ka ikaika ma mua o nā polyethylenes ʻē aʻe, a hiki ke lawe ʻia ke kinoea a me ka wai ma lalo o ke kaomi kiʻekiʻe;
2.2 ʻO ka paia lahilahi
Ma lalo o ke kaomi hana maʻamau, hiki ke hoʻemi nui ʻia ka pā paipu i hana ʻia me ka mea PE100.No nā paipu wai nui, hiki i ka hoʻohana ʻana i nā paipu pā lahilahi ke mālama i nā mea waiwai a hoʻonui i ka wahi o ka ʻāpana cross-sectional o nā paipu, pēlā e hoʻonui ai i ka hiki ke lawe i nā paipu.Inā mau ka mana lawe, hiki i ka hoʻonui ʻana o ka ʻāpana keʻa i ka emi ʻana o ka kahe kahe, i hiki ke hoʻomaopopo ʻia ka lawe ʻana e kahi pā mana liʻiliʻi, akā mālama ʻia ke kumukūʻai.
2.3 Kiʻekiʻe palekana kumu
Inā nui ka paipu a i ʻole ke kuhikuhi ʻia ʻana o ke kaomi hana, ʻo ka mea palekana e hiki ai iā PE100 ke hōʻoiaʻiʻo ʻia i loko o nā ʻano paipu polyethylene like ʻole o kēia lā.
2.4 ʻOi aku ka paʻakikī
Loaʻa i ka mea PE100 kahi modulus elastic o 1250MPa, ʻoi aku ka kiʻekiʻe ma mua o 950MPa o ka resin HDPE maʻamau, e hana ana i ka paipu PE100 i ʻoi aku ka ʻoi aku o ke apo.
3. Mechanical waiwai o PE100 resin
3.1 Ka ikaika mau
Hoʻoholo ʻia ka ikaika hoʻomanawanui e ka hoʻāʻo ʻana i nā laina i nā mahana like ʻole (20 ° C, 40 ° C, 60 ° C a me 80 ° C).Ma 20 ℃, hiki i ka PE100 resin ke mālama i ka ikaika o 10MPa ma hope o 50 mau makahiki, (PE80 ʻo 8.0MPa).
3.2 Ke kū'ē māwae koʻikoʻi maikaʻi
ʻO ka PE100 polyethylene paipu mea kūikawā he kū'ē maikaʻi i ke koʻikoʻi, hoʻopaneʻe i ka hiki ʻana o ke kaumaha (> 10000 mau hola), a hiki ke hoʻopaneʻe ʻia ma mua o 100 mau makahiki ma lalo o ke kūlana o 20 ℃.
3.3 Kūʻē nui i ka ulu ʻana o ka māwae wikiwiki
ʻO ke koi no ka hiki ke pale i ka ulu wikiwiki o nā māwae e kaupalena i ka hoʻohana ʻana i nā paipu polyethylene maʻamau: no ke kinoea, ʻo ka palena kaomi ʻo 0.4MPa, a no ka hāʻawi ʻana i ka wai, ʻo ia ka 1.0MPa.Ma muli o ka mana kupaianaha o PE100 e kū'ē i ka ulu wikiwikiʻana o nā māwae, ua hoʻonuiʻia ka palena o ke kaomi i ka 1.0MPa (ua hoʻohanaʻia ka 1.2MPa ma Rusia a me ka 1.6MPa i ka pūnaewele hoʻouna wai).Ma kahi huaʻōlelo, ʻo ka noi ʻana o ka PE100 polyethylene material i nā pipelines e hōʻoia i ka palekana o ka hana o nā paipu wai wai pe100 i loko o ka pūnaewele paipu, ʻoi aku ka waiwai a ʻoi aku ka lōʻihi o ke ola lawelawe.
Nānā:http://www.chinapipe.net/baike/knowledge/15022.html