Nā Mālama i ka wā e hoʻohana ai i ka mīkini hoʻopuka pepa

He aha nā pilikia e pono ai mākou e makaʻala i ka wā e hana ana i ka mīkini hana pepa?

(1)ʻO ka mahana o kēlā me kēia ʻāpana o ka barela o nā lako hana pepa palakiko piʻi mālie mai ka ʻāpana hānai a hiki i ka pilina ma waena o ka barela a me ka ʻōmole hoʻokumu.

(2) ʻOi aku ka mahana o ka ʻōmole ma mua o ka mahana o ka barela. Hoʻomalu ʻia ka mahana kiʻekiʻe ma 5---10 ℃. ʻOi aku ka mahana ma nā wēlau ʻelua o ka ʻōmole ma mua o ka mahana i loko o ka ʻōmole, a hoʻomalu ʻia ka mahana kiʻekiʻe ma 5-10°C.

(3) Ma ke ʻano o ka hoʻokomo ʻana i ka pepa, pono e kau ʻia ka ʻili o luna o ka wili waena o ka wili ʻekolu ma kahi mokulele ākea me ka mokulele haʻahaʻa o ka lehelehe hoʻoheheʻe; pono e kūlike ka ʻili hope o ka lehelehe me ka laina waena o ka wili waena, 50 ~ 100mm ke kaʻawale.

(4) Pono ka hakahaka ma waena o nā lehelehe mold e emi iki a like paha me ka mānoanoa o ka huahana pā, a ʻo ka hakahaka ma waenakonu o nā lehelehe mold e liʻiliʻi iki ma mua o ka hakahaka ma waena o nā lehelehe hope ma nā ʻaoʻao ʻelua.

(5) E hoʻomaopopo ʻaʻole pono e ʻoi aku ka ʻoʻoleʻa R o ka ʻili hana ʻekolu-wili ma mua o 0.2pm. I ka hoʻomaʻemaʻe ʻana i ka ʻili o ka wili, mai hoʻohana i ka pahi kila paʻakikī e kahakaha i ka ʻili o ka wili. Pono e hoʻohana ʻia ka pahi keleawe e hoʻomaʻemaʻe i ke koena o nā mea ma luna o ka ʻili o ka wili.

(6) Pono ka ʻili o ka wili i kahi kiʻekiʻe waena; ka hakahaka ma waena o ʻekolu mau wili pono e like a ʻoi iki paha ma mua o ka mānoanoa o ka papa.

(7) Pono e paʻa ka mana o ka mahana o ka ʻōmole. Ke kiʻekiʻe ka mahana, kahe wikiwiki ka heheʻe i loko o ka ʻōmole; ke haʻahaʻa ka mahana, lohi ka kahe ʻana o ka heheʻe i loko o ka ʻōmole. ʻO ka wikiwiki o ke kahe heheʻe paʻa ʻole e hana i nā hewa mānoanoa lōʻihi o nā huahana pā (pepa).

(8) E makaʻala i ka kaohi ʻana i ka mahana o ka ʻili hana o nā wili ʻekolu. Pono e kiʻekiʻe iki ka mahana o ka wili komo kiʻiʻoniʻoni a e emi iki ka mahana o ka wili puka kiʻiʻoniʻoni. Inā kiʻekiʻe loa ka mahana o ka ʻili wili, ʻaʻole e wehe maʻalahi ʻia ka papa mai ka ʻōwili, a e ʻike maʻalahi ʻia nā laina ʻaoʻao ma luna o ka huahana; inā haʻahaʻa loa ka mahana, e palalulu ka ʻili o ka huahana. Wahi a kēia hanana, pono e hoʻoponopono ʻia ka kaohi mahana o ka ʻili wili i ka manawa.

(9) ʻOi aku ka wikiwiki o ka hana o nā wili ʻekolu ma mua o ka wikiwiki o ka extrusion o ka papa mai ka waha make, a ʻo ka ʻokoʻa o ka wikiwiki maʻamau ʻaʻole iʻoi aku ma mua o 10%. Pono e hoʻomalu mālie ʻia ka wikiwiki o ka hana o nā wili ʻekolu. ʻO ka wikiwiki loa a lohi paha o ka holo ʻana e loaʻa ka hopena nui i ka hewa mānoanoa o ka papa.

(10) I ka wā e hoʻopuka ai i nā plastics polyolefin e hana i nā papa (pepa), hoʻohana ka wili i kahi ʻano hoʻololi, ʻo ka lakio compression he (3-4): 1, a ʻo ka nui o ke kahe heheʻe: HDPE 0.3 ~ 2.0g / 10min, LDPE 0.1 ~ 0.3g / 1Omin, PP 0.5 ~ 1. 5g / 10min. No nā papa hoʻoheheʻe resin polymer non-crystalline (pepa) e like me ABS, pono e hoʻohana ʻia kahi wili gradient, me ka lakio compression o (1.6 a 2.5): 1.

(11) I ke kālai ʻana i nā papa plastik (pepa), koe wale nō ka polyvinyl chloride, polyethylene a me polypropylene resins ʻaʻole i hana ʻia ka dehumidification ma mua o ka extrusion, pono e dehumidified kekahi mau plastik ʻē aʻe (e like me ABS, polyamide, a pēlā aku) ma mua o ka extrusion. Pono ka dehumidification a me ka hoʻomaloʻo ʻana. A i ʻole, pono e hoʻohana ʻia kahi extruder vented no ka extrusion extrusion.