Lawe nā paipu PVC i nā paipu PVC-U no ka hoʻowai wai, i hana ʻia me ka resin polyvinyl chloride ma ke ʻano he mea waiwai nui. Hoʻohui ʻia lākou me nā mea hoʻohui kūpono a hana ʻia ma o ka hana extrusion. He paipu hoʻoheheʻe hale ia me ka ikaika kiʻekiʻe, kūpaʻa maikaʻi, ola lōʻihi a me ka hana kiʻekiʻe. Hiki ke hoʻopili ʻia i ke kūkulu ʻana i ka wai kahe, ʻōnaehana paipu hoʻoliʻiliʻi a me ka ʻōnaehana paipu hoʻokomo ea.
ʻO nā mea maikaʻi o ka paipu PVC penei:
1. Loaʻa iā ia ka ikaika a me ka ikaika compressive a me ka mea palekana kiʻekiʻe.
2. Ke kūpaʻa wai liʻiliʻi:
Māmā ka paia o ka paipu PVC a liʻiliʻi ka liʻiliʻi i ke kūpaʻa ʻana i ka wai. ʻO 0,009 wale nō ke koina ikaika. Hiki ke hoʻonui ʻia kona hiki ʻana i ka wai e 20% ke hoʻohālikelike ʻia me ke anawaena like o ka hao hao a 40% ʻoi aku ma mua o ka paipu paʻa.
3. ʻO ke kūpaʻa kūpikipiki maikaʻi a me nā kūpaʻa kemika
Loaʻa nā paipu PVC i ke kūpaʻa acid maikaʻi, kūpaʻa alkali, kūpaʻa ʻaʻa. ʻAʻole lākou e hoʻopili ʻia e ka momona a me ka lepo PH. ʻAʻole koi ʻia kahi lapaʻau anticorrosive no ke kau ʻana o ka paipu. He kūpale ka popopo maikaʻi ka paipu i nā inorganic acid, alkalis a me nā paʻakai. He kūpono ia no ka hoʻokuʻu ʻana i ka wai wai a me ka lawe ʻana.
4. Ka paʻa pono o ka wai maikaʻi: ʻO ka hoʻonohonoho ʻana o nā paipu PVC he maikaʻi maikaʻi ka wai me ka nānā ʻole inā e hoʻopili ʻia a i ʻole e pili ana i ke apo o ka pae.
5. ʻAno-nahu: ʻaʻole kahi paipu PVC kahi kumu o ka meaʻai, no laila ʻaʻole ia e hoʻopau ʻia e nā rodents. Wahi a kahi hōʻike i alakaʻi ʻia e ka National Health Foundation ma Michigan, ʻaʻole hiki i nā ʻiole ke nahu i nā paipu PVC.
6. Kūlana kūnewa maikaʻi: hiki i ke ola lawelawe maʻamau ke ʻoi aku ma mua o 50.
makahiki.
ʻO ke kumu o ka noi ʻana i nā paipu PVC ʻaʻole ia wale nā keu hana i luna. Hiki i kona kaupaona māmā ke mālama i nā kumukūʻai o ka halihali o nā mīkini kaumaha a hoʻoliʻiliʻi loa i ka manawa no nā ʻeli ʻana i nā paipu. Inā i loko o nā ōlaʻi a i ʻole nā hanana ʻē aʻe, hiki i nā paipu PVC ke noho paʻa ʻole. ʻO kēia ka mea e kākoʻo nui aku i ka paipu PVC.
Ka manawa Post: Mei-19-2021