nūhou

ʻO ka paipu PVC (PVC-U pipe) paipu PVC paʻakikī, i hana ʻia me ka resin PVC me ka stabilizer, lubricant a me nā mea hoʻoheheʻe extrusion hoʻoheheʻe wela, ʻo ia ka mea i kūkulu mua ʻia a hoʻohana ʻia ka paipu plastik.ʻO ka paipu PVC-U he kūpaʻa kūpaʻa ikaika, hoʻopaʻa maʻalahi, kumukūʻai haʻahaʻa a me ke ʻano paʻakikī.Eia nō naʻe, ma muli o ka leakage o PVC-U monomer a me nā mea hoʻohui, kūpono wale ia no ka ʻōnaehana wai kahi i ʻoi aku ka mahana o ka lawe ʻana ma mua o 45 ℃.Hoʻohana ʻia ka paipu plastik no ka hoʻoheheʻe ʻana, ka wai ʻino, nā kemika, ka hoʻomehana ʻana a me ka wai hoʻoluʻu, ka meaʻai, ka wai ultra-maʻemaʻe, ka lepo, ke kinoea, ka ea paʻa a me nā noi ʻōnaehana vacuum.

Loaʻa iā ia ka ikaika tensile a me ka compressive: akā ʻaʻole maikaʻi kona maʻalahi e like me nā paipu plastik ʻē aʻe.

ʻO ke kūpaʻa wai haʻahaʻa: ʻo ka paia o ka paipu PVC-U he maʻalahi loa, a he liʻiliʻi loa ke kūʻē ʻana i ka wai.ʻO 0.009 wale nō kona ʻano ʻino, a he 20% ke kiʻekiʻe o ka lawe ʻana i ka wai ma mua o ka paipu hao o ke anawaena like, a ʻo 40% ke kiʻekiʻe ma mua o ka paipu paʻa.

ʻOi aku ka maikaʻi o ka pale ʻana i ka corrosion a me ke kūʻē ʻana i ka lāʻau lapaʻau: ʻO ka paipu PVC-U he kūpaʻa maikaʻi loa ka waika, ke kūpaʻa alkali a me ke kūpaʻa corrosion.ʻAʻole pili ʻia e ka lepo a me ka pH lepo, a ʻaʻole pono i ka mālama anti-corrosion ke waiho ʻia ka paipu.

Me ka paʻa wai maikaʻi: ʻo ka hoʻokomo ʻana o ka paipu PVC-U he paʻa wai maikaʻi, inā pili ʻia e ke apo a i ʻole ke apo.

Hōʻoiaʻiʻo nahu: ʻAʻole kumu o nā meaʻai nā paipu PVC-U a no laila ʻaʻole hiki ke hoʻouka ʻia i nā ʻiole.Wahi a kahi noiʻi i mālama ʻia e ka National Health Foundation ma Michigan, ʻaʻole nahu nā ʻiole i ka paipu PVC-U.

Ka ho'āʻo hana: ka manawa ho'ōla, ka nui o ka emi ʻana, ka ikaika o ka ʻokiʻoki, ka ikaika o ka wehe ʻana i ka waiwai, ka paʻa wela, ka manawa kūpono, ka manawa mālama, ka hoʻokuʻu ʻana i nā mea ʻino.

Kaʻina hana

ʻO nā mea maʻamau + hoʻomākaukau kōkua → hui ʻana → lawe a hānai → hānai koi → Cone-type twin-screw extruder → extrusion mold → sizing lima → spray vacuum hoʻonohonoho pahu → hoʻomaʻamaʻa i ka pahu wai hoʻoluʻu → mīkini paʻi ʻīnika → crawler tractor → mīkini hāpai pahi → paipu hoʻopaʻa ʻana → hoʻāʻo ʻia a hoʻopaʻa ʻia i ka huahana.

Hiki ke hoʻokaʻawale ʻia ka PVC i PVC palupalu a me PVC paʻakikī.

ʻO nā moʻolelo PVC paʻakikī e pili ana i ka 2/3 o ka mākeke, a me nā moʻolelo PVC palupalu no 1/3.

Hoʻohana maʻamau ka PVC palupalu no ka papahele, ke kaupaku a me ka ʻili ʻili, akā no ka mea he plasticizer ka PVC palupalu (ʻo ia hoʻi ka ʻokoʻa ma waena o ka PVC palupalu a me ka PVC paʻakikī), maikaʻi ʻole ka hana kino (no ka mea e pono ai nā paipu wai e kau i kahi kaomi wai. ʻAʻole kūpono ka PVC palupalu no ka hoʻohana ʻana), no laila ua kaupalena ʻia kāna hoʻohana.

ʻAʻole i loaʻa i ka PVC paʻakikī ka plasticizer, no laila ua maʻalahi ka hana ʻana, nā waiwai kino maikaʻi, no laila he hoʻomohala nui a me ka waiwai noi.I ke kaʻina hana o nā mea PVC, ua hoʻohui ʻia kekahi mau mea hoʻohui, e like me ka stabilizer, plasticizer a pēlā aku.Inā hoʻohana ʻia nā mea hoʻohui hoʻomalu kaiapuni a pau, ʻo ka paipu PVC ʻaʻole ia he mea ʻawaʻawa a ʻono ʻole hoʻi nā huahana pale kaiapuni.