He aha nā ʻano hana a me ka hana ʻana o EVA

ʻO ka EVA (ethylene vinyl acetate copolymer) he mea maʻamau i hoʻohana ʻia me ka hana maikaʻi loa a me nā waiwai kino, no laila ua hoʻohana nui ʻia ia ma nā ʻano āpau. A laila, nā ʻano kūpono oEVAe hoʻokomo ʻia ka hana ma hope, me ka extrusion, injection molding, calendering a me ke kaomi wela.

1. Keʻano extrusion
ʻO ka Extrusion kahi hana hana EVA maʻamau. Hoʻoheheʻe ʻia nā ʻāpana EVA a hoʻoheheʻe ʻia a laila hoʻoheheʻe ʻia ka EVA i hoʻoheheʻe ʻia ma o kahi extruder. He kūpono kēiaʻano no ka hanaʻana i nā huahana EVA o nāʻano likeʻole, e like me nā papa, nā paipu, nā profiles, a me nā mea'ē aʻe.

2. ʻO ke ʻano hana hoʻoheheʻe
ʻO ke ʻano o ka hoʻoheheʻe ʻia ʻana o ka hoʻoheheʻe ʻana i ka EVA i hoʻoheheʻe ʻia i loko o ka mold, a ma o ka hoʻoluʻu ʻana a me ka paʻa ʻana o ka mold, loaʻa nā huahana EVA i koi ʻia. He kūpono ke ʻano hoʻoheheʻe injection no ka hana ʻana i nā huahana EVA paʻakikī, e like me nā kapuaʻi, nā ʻāpana, a me nā mea ʻē aʻe.

3. Keʻano kalena
ʻO ke ʻano o ka calender ka hoʻopau mau ʻana a me ka calender i ka EVA i hoʻoheheʻe ʻia ma o kahi kalena e hoʻomaʻalili wikiwiki ai i ke ʻano kiʻiʻoniʻoni. Kūpono kēia ʻano no ka hana ʻana i nā kiʻiʻoniʻoni EVA, nā kiʻi ʻoniʻoni a me nā huahana ʻē aʻe. Loaʻa i ke ʻano calendering nā mea maikaʻi o ka wikiwiki o ka hana wikiwiki a me ka like ʻana o ka huahana maikaʻi, no laila ua hoʻohana nui ʻia i ka ʻoihana paʻi.

4. Keʻano kaomi wela
ʻO ke ala kaomi wela e hoʻokomo i ka pepa EVA i hoʻoheheʻe ʻia i loko o kahi ʻōpala, a hoʻopaʻa paʻa iā ia ma o ka hoʻomehana ʻana a me ke kaomi o ka mold. He kūpono kēia ʻano hana no ka hana ʻana i nā insoles EVA, nā sponges EVA a me nā huahana ʻē aʻe. Loaʻa i ka paʻi wela ka maikaʻi o ka hoʻoheheʻe kiʻekiʻe a me ka maikaʻi o ka huahana maikaʻi, no laila hoʻohana nui ʻia i nā mea kāmaʻa, nā lako hale a me nā ʻoihana ʻē aʻe.

I ka hōʻuluʻulu ʻana, ʻo nā kaʻina hana EVA e komo i ka extrusion, injection molding, calendering a me ke kaomi wela. Kūpono nā ʻano hana like ʻole no nā huahana like ʻole. ʻO ke koho ʻana i ke ʻano hana kūpono e hiki ke hoʻomaikaʻi i ka hana hana a me ka maikaʻi o ka huahana. I ka hana maoli, pono e koho i ke kaʻina hana kūpono e like me nā koi o ka huahana a me nā kūlana hana, a hana i nā hoʻoponopono kaʻina hana a me nā koho mea hana. Ma ka hoʻomau mau ʻana a me ka hoʻomaikaʻi ʻana i nā kaʻina hana, hiki ke hoʻomaikaʻi ʻia ka hana a me ka hoʻokūkū o nā huahana EVA e hoʻokō i ka noi mākeke.