Ke Kūlana Koʻikoʻi o nā Pumps Vacuum a me nā Kānana i ka Plastic Extrusion

I ka wā o ka extrusion, hoʻomehana ʻia nā mea maka plastik i kahi kūlana heheʻe. Hoʻokuʻu kēia kaʻina hana i ka makū, ka ea paʻa, nā monomers, nā oligomers, a me nā mea ʻē aʻe i hoʻoheheʻe ʻia. Inā noho kēia mau kinoea i loko o ka heheʻe, hana lākou i nā pehu, nā kīnā o ka ʻili (i kapa pinepine ʻia ʻo "silver streaks"), a me nā hakahaka i loko. ʻO ka hopena he huahana nāwaliwali a maikaʻi ʻole hoʻi e hāʻule ana i nā kūlana maikaʻi. Hoʻoponopono ka pamu vacuum i kēia ma ka hoʻokumu ʻana i ke kaomi maikaʻi ʻole ma ka ʻāpana degassing o ka extruder, e wehe mau ana i nā mea haumia i hoʻoheheʻe ʻia a me ka hōʻoia ʻana i kahi heheʻe paʻa a like.

Eia nō naʻe, ʻaʻole maʻemaʻe loa ke kahawai kinoea i unuhi ʻia. Loaʻa pinepine i loko ka lepo palaki, nā ʻāpana kalapona i hoʻohaumia ʻia, ka noe ʻaila, a me nā koena tarry sticky mai ka decomposition thermal. Inā huki pololei ʻia kēia mau haumia i loko o ka pamu vacuum, he koʻikoʻi nā hopena. Loaʻa i nā pamu vane rotary nā ʻōnaehana ʻaila i paʻa a me nā vanes i hopu ʻia. Loaʻa i nā pamu wili maloʻo ka ʻaʻahu rotor a me ka hōʻino ʻana o ka uhi. I kēlā me kēia hihia, hōʻemi koke ka hana o ka pamu, pinepine i loko o nā pule a i ʻole nā ​​​​lā.