ʻO ke sila palupalu kahi ʻano paʻi convex. He paʻi paʻi ʻana i ka mana convex me ka paʻi ʻana i ka paʻi paʻi ʻana a i ʻole ke kino elastic. Ua hoʻohana mua ʻia ka paʻi ʻano palupalu i ka makahiki 1890. I kēlā manawa, hoʻohana ʻia ka lāʻau lapaʻau ma ke ʻano he pā, a ua lohi ka hoʻomohala ʻana. ʻAʻole ia a hiki i ka ʻike ʻia ʻana o ka sensitivity resin flexible version of the sensitivity resin i ka makahiki 1970, i hoʻomaikaʻi nui i ka helu a me ka pololei o ka mana. Lākou ʻia ʻia ʻia ʻia ʻāpala ʻia ʻia ʻia ʻia ʻia ʻāpala aʻu aʻu aʻu aʻu aʻu aʻu aʻu aʻu aʻu aʻu ʻāpala aʻu ʻai ʻo ʻai ʻāpala ʻāpala ʻāpala ʻāpala ʻāpala ʻāpala ʻāpala ʻia ʻia ʻia ʻāpala ʻāpala ʻāpala ʻu h uʻu ʻāpala h ʻāpala ʻāpala ʻāpala ʻāpala āʻAAAAAA. He haʻahaʻa ke kumukūʻai paʻi, hiki ke hoʻokō ʻia ka uhi ʻana i nā kala he nui, kokoke ka maikaʻi o ka paʻi ʻana i ka paʻi plastik, a ʻoi aku ka wikiwiki o ka paʻi. I ka manawa like, hiki ke hoʻohui ʻia i kahi laina hana no ka ʻoki ʻana, ka hana ʻana, ka ʻokiʻoki ʻana, ka perforation, nā ʻaoʻao pelu, ka uhi ʻana, a i ʻole ka māmā, a i ʻole ka māmā. He kiʻekiʻe loa ka nui o ka hana a he kiʻekiʻe hoʻi ke kiʻekiʻe o ka automation, no laila ua ulu wikiwiki ia i nā makahiki i hala iho nei, ʻoi aku hoʻi i ka paʻi ʻana. I kēia manawa, ʻo ka paʻi ʻana i ka paʻi paʻi paʻi palupalu, ka paʻi pahu corrugated, ka lepili maloʻo ʻole, a me ka pahu peʻa ua aneane paʻi ʻia i ka mana maʻalahi, a hoʻohana pū kekahi mau nūpepa a me nā nūpepa i ka paʻi palupalu. Hoʻoholo ʻia ke ʻano palupalu o ke kaʻina paʻi ma luna o ka paʻi paʻi palupalu o ka wili inika ma o ka ʻōwili inika, a ʻoki ʻia ka ʻīnika keu mai ka pahi inika. Hoʻololi pololei ʻia mai ka mana paʻi a i ka ʻili o ka mea i paʻi ʻia. He haʻahaʻa ka viscosity o ka ʻīnika palupalu, maʻamau 0.1-2Pa.s, ʻo ia ke ʻano o ka inika kokoke i ka wai Newtonian. No ka mea, hoʻohana nui ʻia ia no ka paʻi ʻana a me nā mea paʻi, pono ke kala ʻīnika e ʻālohilohi, ʻoi aku ka maikaʻi o ke aniani, a ʻoi aku ka maikaʻi o ke kala. He lahilahi ka ʻīnika o ka mana maʻalahi o ka paʻi, ma kahi o 4 m, no laila ke kiʻekiʻe hoʻi ka ʻike puaʻa i loko o ka inika paʻi palupalu, maʻamau 12% -18%. ʻO ka hoʻohana ʻana i ka ʻenehana hoʻōla o UV ma ka sila palupalu e hoʻoikaika hou i ka hana ʻana i nā sila palupalu. He ʻanuʻu ia ma ka pae ʻenehana. Loaʻa ka ʻike hou aku e komo
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