I ka wā e ʻimi ai i nā kaula a me nā uea maikaʻi loa, he mea koʻikoʻi ke koho ʻana i ka mea uhi kūpono. Loaʻa i ka ʻupena waho nā hana like ʻole e hōʻoia i ka lōʻihi, ka palekana a me ka hana o ke kaula a i ʻole ka uea. ʻAʻole ia he mea maʻamau ka hoʻoholo ʻana ma waena o ka polyurethane (PUR) a mepolyvinyl chloride (PVC)Ma kēia ʻatikala, e aʻo ʻoe e pili ana i nā ʻokoʻa hana ma waena o nā mea ʻelua a me nā noi e kūpono loa ai kēlā me kēia mea.
ʻO ke ʻano a me ka hana o ka uhi ʻana i nā kaula a me nā uwea
ʻO ka ʻūpā (i kapa ʻia hoʻi he ʻūpā waho a i ʻole ka ʻūpā) ka papa waho loa o ke kaula a i ʻole ka uea a ua hoʻopili ʻia me ka hoʻohana ʻana i kekahi o nā ʻano hana extrusion. Mālama ka ʻūpā i nā alakaʻi kaula a me nā ʻāpana kūkulu ʻē aʻe mai nā mea o waho e like me ka wela, ke anu, ka pulu a i ʻole nā kemika a me nā mana mechanical. Hiki iā ia ke hoʻopaʻa i ke ʻano a me ke ʻano o ke alakaʻi i wili ʻia, a me ka papa pale (inā loaʻa), no laila e hōʻemi ana i ka hoʻopilikia ʻana me ka hoʻohālikelike electromagnetic o ke kaula (EMC). He mea nui kēia e hōʻoia i ka hoʻoili mau ʻana o ka mana, ka hōʻailona, a i ʻole ka ʻikepili i loko o ke kaula a i ʻole ka uea. He kuleana koʻikoʻi nō hoʻi ka ʻūpā i ka lōʻihi o nā kaula a me nā uea.
He mea koʻikoʻi ke koho ʻana i ka mea uhi kūpono no ka hoʻoholo ʻana i ke kaula maikaʻi loa no kēlā me kēia noi. No laila, he mea nui e ʻike pono i ke kumu e pono ai ke kaula a i ʻole ka uea e lawelawe a me nā koi e pono ai ke hoʻokō.
ʻO ka mea uhi maʻamau
ʻO Polyurethane (PUR) a me ka polyvinyl chloride (PVC) nā mea uhi ʻelua i hoʻohana nui ʻia no nā kaula a me nā uea. Ma ke ʻano ʻike, ʻaʻohe ʻokoʻa ma waena o kēia mau mea, akā hōʻike lākou i nā waiwai like ʻole e kūpono ai lākou no nā noi like ʻole. Eia kekahi, hiki ke hoʻohana ʻia kekahi mau mea ʻē aʻe e like me nā mea uhi, me ka rubber kalepa, nā elastomers thermoplastic (TPE), a me nā hui plastik kūikawā. Eia nō naʻe, ʻoiai ʻaʻole lākou i maʻamau ma mua o PUR a me PVC, e hoʻohālikelike wale mākou i kēia mau mea ʻelua i ka wā e hiki mai ana.
PUR - ʻO ka hiʻohiʻona koʻikoʻi loa
ʻO ka Polyurethane (a i ʻole PUR) e pili ana i kahi hui o nā plastics i hoʻomohala ʻia i ka hopena o nā makahiki 1930. Hana ʻia ia e kahi kaʻina hana kemika i kapa ʻia ʻo addition polymerization. ʻO ka mea maka ka petroleum maʻamau, akā hiki ke hoʻohana ʻia nā mea kanu e like me ka ʻuala, kulina a i ʻole nā beets kō i kāna hana ʻana. He elastomer thermoplastic ka Polyurethane. ʻO ia hoʻi, he palupalu lākou i ka wā e hoʻomehana ʻia ai, akā hiki ke hoʻi i ko lākou ʻano mua i ka wā e hoʻomehana ʻia ai.
He maikaʻi loa nā waiwai mechanical o ka Polyurethane. Loaʻa i ka mea ke kūpaʻa maikaʻi loa i ka ʻaʻahu, ke kūpaʻa ʻoki a me ke kūpaʻa haehae, a noho palupalu loa ia ʻoiai i nā mahana haʻahaʻa. ʻO kēia ka mea e kūpono loa ai ʻo PUR no nā noi e pono ai ka neʻe ikaika a me nā koi kūlou, e like me nā kaulahao huki. I nā noi robotic, hiki i nā kaula me ka uhi PUR ke kū i nā miliona o nā pōʻaiapuni kūlou a i ʻole nā ikaika torsional ikaika me ka ʻole o nā pilikia. Loaʻa iā PUR ke kūpaʻa ikaika i ka ʻaila, nā mea hoʻoheheʻe a me ka radiation ultraviolet. Eia kekahi, ma muli o ka haku mele ʻana o ka mea, he halogen-free a he flame retardant, he mau pae koʻikoʻi no nā kaula i hōʻoia ʻia e UL a hoʻohana ʻia ma ʻAmelika Hui Pū ʻIa. Hoʻohana pinepine ʻia nā kaula PUR i ke kūkulu ʻana i ka mīkini a me ka hale hana, ka automation ʻoihana, a me ka ʻoihana kaʻa.
ʻO PVC - ka hana nui
ʻO ka Polyvinyl chloride (PVC) kahi palakiko i hoʻohana ʻia e hana i nā huahana like ʻole mai ka makahiki 1920. ʻO ia ka huahana o ka polymerization kaulahao kinoea o ka vinyl chloride. I ka hoʻohālikelike ʻana i ka elastomer PUR, he polymer thermoplastic ka PVC. Inā hoʻololi ʻia ke ʻano o ka mea ma lalo o ka hoʻomehana ʻana, ʻaʻole hiki ke hoʻihoʻi ʻia i kona kūlana mua.
Ma ke ʻano he mea uhi, hāʻawi ka polyvinyl chloride i nā ʻano hiki like ʻole no ka mea hiki iā ia ke hoʻololi i nā pono like ʻole ma ka hoʻololi ʻana i kāna lakio haku mele. ʻAʻole kiʻekiʻe kona hiki ke hoʻouka mechanical e like me PUR, akā ʻoi aku ka waiwai o ka PVC; ʻO ke kumukūʻai awelika o ka polyurethane he ʻehā manawa kiʻekiʻe. Eia kekahi, ʻaʻohe ʻala o ka PVC a kū i ka wai, ka waikawa a me nā mea hoʻomaʻemaʻe. No kēia kumu i hoʻohana pinepine ʻia ai i ka ʻoihana meaʻai a i ʻole nā wahi hau. Eia naʻe, ʻaʻole halogen-free PVC, ʻo ia ke kumu i manaʻo ʻia ai ʻaʻole kūpono no nā noi kikoʻī o loko. Eia kekahi, ʻaʻole ia he kūpaʻa i ka ʻaila, akā hiki ke hoʻokō ʻia kēia waiwai e nā mea hoʻohui kemika kūikawā.
Hopena
Loaʻa i ka polyurethane a me ka polyvinyl chloride ko lākou mau pono a me nā hemahema e like me nā mea uhi uwea a me ka uea. ʻAʻohe pane paʻa i ka mea maikaʻi loa no kēlā me kēia noi kikoʻī; hilinaʻi nui ia i nā pono pilikino o ka noi. I kekahi mau hihia, ʻoi aku ka maikaʻi o kahi mea uhi ʻokoʻa loa. No laila, paipai mākou i nā mea hoʻohana e ʻimi i ka ʻōlelo aʻoaʻo mai nā loea i kamaʻāina i nā waiwai maikaʻi a maikaʻi ʻole o nā mea like ʻole a hiki ke kaupaona kekahi i kekahi.
Ka manawa hoʻouna: Nowemapa-20-2024