Hoʻohana ʻia nā papa puaa PVC ma nā ʻano āpau o ke ola, ʻoi aku hoʻi i nā mea kūkulu hale. ʻIke paha ʻoe i nā pilikia e kū mai i ka wā o ka hana ʻana i nā papa pahu PVC? Ma lalo, e haʻi aku ka mea hoʻoponopono iā ʻoe e pili ana iā lākou.
E like me nā lākiō puaʻa like ʻole, hiki ke hoʻokaʻawale ʻia i loko o ka huʻa kiʻekiʻe a me ka huʻa haʻahaʻa. E like me ka palupalu a me ka paʻakikī o ke ʻano o ka pua, hiki ke hoʻokaʻawale ʻia i loko o nā ʻōpū paʻakikī, semi-paʻakikī a palupalu. E like me ka hoʻolālā cell, hiki ke hoʻokaʻawale ʻia i loko o nā plastic foam paʻa a me nā plastic foam open-cell. ʻO nā pepa pahu PVC maʻamau, he mau pepa haʻahaʻa haʻahaʻa. Loaʻa i nā pāpaʻi PVC nā mea maikaʻi o ka pale ʻana i ka corrosion kemika, ka pale ʻana i ka ea, ka lapalapa ahi, a me nā mea ʻē aʻe, a hoʻohana nui ʻia i nā ʻano he nui, e like me nā paneli hōʻikeʻike, nā hōʻailona, palapala pāpaʻi, nā ʻāpana, nā panel kūkulu hale, nā panela lako, etc. alakaʻi i nā pūnaewele nui i loko o ka pepa pahu a me nā ʻāpana longitudinal lōʻihi. ʻO ke ala pololei e noʻonoʻo ai inā ʻaʻole lawa ka ikaika heheʻe, ʻo ia ke hele ma hope o nā wili ʻekolu a kaomi i ka pā i ʻōwili ʻia ma ka ʻōwili waena me kou mau manamana lima. Inā maikaʻi ka ikaika heheʻe, hiki iā ʻoe ke manaʻo i ka elasticity i ke kaomi ʻana. Inā paʻakikī ka ulu ʻana ma hope o ke kaomi ʻana, ʻilihune ka ikaika heheʻe. No ka mea he ʻokoʻa loa ke ʻano o ka hoʻoheheʻe ʻana a me ke ʻano hoʻoluʻu, he paʻakikī ke hoʻoholo inā kūpono ka mahana. ʻO ka ʻōlelo maʻamau, i loko o ka haʻahaʻa i ʻae ʻia o ka extruder, pono e haʻahaʻa ka mahana ma nā ʻāpana 3-5. No ka loaʻa ʻana o nā huahana i hoʻohuihui ʻia i loko o nā ʻāpana pua, pono nō hoʻi e hōʻoia i ka ikaika hoʻoheheʻe maikaʻi o ka mea PVC. No laila, he mea nui ka maikaʻi o ka mea hoʻoponopono foaming. No ka laʻana, ma waho aʻe o nā hana maʻamau o kahi kōkua hana maʻamau, loaʻa i ka mea hoʻoponopono foaming ke kaumaha molecular a me ka ikaika heheʻe, hiki ke hoʻomaikaʻi nui i ka ikaika heheʻe o ka hui PVC a pale i nā ʻōhū a me ka haki. , ka hopena i ka hoʻonohonoho ʻokoʻa like ʻole a me ka haʻahaʻa haʻahaʻa o ka huahana, ʻoiai e hoʻomaikaʻi ana i ka ʻili o ka ʻili o ka huahana. ʻOiaʻiʻo, pono e hoʻohālikelike ʻia ke ʻano o ka mea hoʻoheheʻe melemele a me ka mea hoʻāla keʻokeʻo.
Ma ke ʻano o nā papa, inā ʻaʻole lawa ka paʻa, e hoʻopili ia i ka ʻili o ka papa holoʻokoʻa a me ka ʻili o ka papa e huli melemele, a e palupalu ka papa pua. ʻO ka hopena e hoʻohaʻahaʻa i ka mahana hana. Inā ʻaʻohe hoʻomaikaʻi, hiki iā ʻoe ke hoʻoponopono i ke ʻano a hoʻonui i ka nui o ka stabilizer a me ka lubricant. ʻO ka stabilizer kahi ʻōnaehana lubrication e pili ana i nā lubricants i lawe ʻia mai e hoʻonui i ka wai o ka mea. He maikaʻi ka fluidity o nā mea wela. , maikaʻi ka pale wela; ke kū'ē ikaika i ka wā, ka hoʻopuehu maikaʻi, ka paʻakikī a me nā hopena heheʻe; kūpaʻa maikaʻi loa, plasticizing fluidity, ākea kaʻina hana, hoʻohana ikaika a me ka lubrication kūloko a me waho. ʻO ka Lubricant ka haʻahaʻa viscosity, nā waiwai kūikawā kiʻekiʻe, ka lubricity maikaʻi loa a me ka hoʻopuehu ʻana, a hoʻohana nui ʻia i ka hana plastic a me nā ʻoihana ʻē aʻe. Loaʻa iā ia nā hopena lubrication kūloko a me waho; He kūpono maikaʻi me ka polyethylene, polyvinyl chloride, polypropylene, etc. Hoʻohana ʻia e like me ka dispersant, lubricant a me ka brightener i ka wā o ke kaʻina hana o nā profile PVC, nā paipu, nā paipu paipu, PE a me PP, e hoʻonui ai i ke kiʻekiʻe o ka plasticization, hoʻomaikaʻi i ka paʻakikī a me ka maʻalahi. ʻili o nā huahana plastik, a hiki ke hoʻololi ʻia i kēlā me kēia, e maʻalahi ka loaʻa ʻana o nā pilikia Ma hea ʻoe, e hoʻoponopono i ka pilikia me ka hikiwawe loa. Ma ke ano o ka lubricant koena, lawa ole waho pahee i hoike ia ma ka mea i ka wela ma ka āpana 5 o ka extruder paʻakikī e hoʻomalu a maʻalahi wela, ka hopena i ke kiʻekiʻe wela i loko o ka converging core, pilikia e like me ka nui bubbles, bula, a me. ka melemele ma ka waena o ka papa, a ʻaʻole maʻalahi ka ʻili o ka papa; ʻO ka paheʻe nui ka mea e lilo ai ka ua i mea koʻikoʻi, e hōʻike ana iā ia iho i loko o ka hale i loko o ka ʻōpala a me ka ua o ka paheʻe waho ma ka ʻili o ka pā. E hōʻike ʻia nō hoʻi e like me ka neʻe ʻana o kekahi mau ʻano ʻano like ʻole ma ka ʻili o ka pā. ʻAʻole lawa ka paheʻe o loko, ʻo ia ka paʻakikī o ka mālama ʻana i ka mānoanoa o ka papa, ʻo ia ka mānoanoa ma waena a lahilahi ma nā ʻaoʻao ʻelua. ʻO ka nui o ka paheʻe o loko e maʻalahi ke alakaʻi i nā wela kiʻekiʻe i ke kumu converging.
Ka manawa hoʻouna: Mei-27-2024