Laina Hoʻopuka Paipu HDPE mālama ikehu kiʻekiʻe

ʻO ka noiʻi hou loa a kā mākou hui a me ka hoʻomohala ʻana i ka laina hana wikiwiki e mālama ai i ka ikehu, kūpono no ka extrusion paipu polyolefin wikiwiki. 35% ka mālama ikehu a me ka hoʻonui ʻana i ka pono hana 1x. ʻO ke ʻano wili 38-40 L/D i hoʻolālā kūikawā ʻia a me ka pahu ʻai e hoʻomaikaʻi nui i ka extrusion heheʻe a me nā hopena plasticizing. Hōʻoia nā pahu pahu kiʻekiʻe-torque, ikaika kiʻekiʻe i ka hana paʻa o nā lako. Hoʻohana nā ʻōmole extrusion a me nā lima lima i ka hoʻolālā holomua loa. ʻO ka pahu hakahaka hoʻokele alapine loli PLC, ka tractor multi-track servo-driven, a me ka mea ʻoki ʻoki wikiwiki ʻole i lako me kahi ʻōnaehana hoʻomalu kaumaha mika. ʻOi aku ka pololei o ke kaumaha extrusion paipu.

ʻO ka paipu HDPE kahi paipu plastik palupalu i hana ʻia me ka polyethylene kiʻekiʻe thermoplastic i hoʻohana nui ʻia no ka hoʻoili wai a me ke kinoea haʻahaʻa. I kēia mau lā i hala iho nei, ua loaʻa i nā paipu HDPE kā lākou hoʻohana nui ʻana no ka lawe ʻana i ka wai inu, nā ʻōpala weliweli, nā kinoea like ʻole, slurry, wai ahi, wai ua, a me nā mea ʻē aʻe. ʻO ka pilina molekala ikaika o nā mea paipu HDPE e kōkua iā ia e hoʻohana no nā paipu kaomi kiʻekiʻe. He mōʻaukala lawelawe lōʻihi a hanohano ko nā paipu Polyethylene no ke kinoea, ka ʻaila, ka eli ʻana, ka wai, a me nā ʻoihana ʻē aʻe. Ma muli o kona kaumaha haʻahaʻa a me ke kūpaʻa kiʻekiʻe o ka palaho, ke ulu nui nei ka ʻoihana paipu HDPE. I ka makahiki 1953, ua ʻike ʻo Karl Ziegler lāua ʻo Erhard Holzkamp i ka polyethene kiʻekiʻe (HDPE). Hiki i nā paipu HDPE ke hana maikaʻi ma kahi ākea o ka mahana mai -2200 F a i +1800 F. Eia nō naʻe, ʻaʻole i manaʻo ʻia ka hoʻohana ʻana i nā Paipu HDPE ke ʻoi aku ka mahana o ka wai ma mua o 1220 F (500 C).

Hana ʻia nā paipu HDPE e ka polymerization o ka ethylene, kahi huahana ʻaoʻao o ka ʻaila. Hoʻohui ʻia nā mea hoʻohui like ʻole (nā mea hoʻopaʻa, nā mea hoʻopiha, nā mea hoʻopili plasticizer, nā mea palupalu, nā lubricants, nā mea hoʻoluʻu, nā mea pale ahi, nā mea puhi, nā mea hoʻopili crosslinking, nā mea hoʻohui degradable ultraviolet, a me nā mea ʻē aʻe) e hana i ka paipu HDPE hope loa a me nā ʻāpana. Hana ʻia nā lōʻihi o nā paipu HDPE ma ka hoʻomehana ʻana i ka resin HDPE. A laila hoʻopuka ʻia ma o kahi make, ka mea e hoʻoholo ai i ke anawaena o ka pipeline. Hoʻoholo ʻia ka mānoanoa o ka paia o ka Paipu e ka hui pū ʻana o ka nui o ka make, ka wikiwiki o ka wili, a me ka wikiwiki o ka tractor lawe. ʻO ka maʻamau, hoʻohui ʻia he 3-5% kalapona ʻeleʻele i ka HDPE e pale aku i ka UV, ka mea e hoʻololi ai i nā paipu HDPE i ʻeleʻele ke kala. Loaʻa nā ʻano kala ʻē aʻe akā ʻaʻole hoʻohana pinepine ʻia. ʻO ka paipu HDPE kala a i ʻole ke kaha ʻia he 90-95% mea ʻeleʻele, kahi i hāʻawi ʻia ai kahi kaha kala ma 5% o waho.