ʻO ka molding plastic kahi ʻenehana ʻenehana e pili ana i nā kaʻina hana like ʻole no ka hoʻololi ʻana i nā plastik i nā huahana plastik. I loko o kēia hoʻololi ʻana, hoʻokahi a ʻoi aʻe paha o kēia mau mea: hoʻololi i ka rheology polymer a me nā waiwai kino a me ke kemika.
Hoʻopeʻa ʻia
ʻO nā mea hana nui no ka hoʻoheheʻe ʻia ʻana he mea paʻi a me ka mold. ʻO ka mīkini paʻi maʻamau i hoʻohana pinepine ʻia, ʻo ia ka -pili hydraulic paʻa ponoʻī, mai ka ʻumi a hiki i nā haneli mau tona. Aia nā kaomi ʻomi -lalo a me ka paʻi kiʻekiʻe-. 'O ka po'i i ho'ohana 'ia no ka ho'ohehe'e 'ana, ua kapa 'ia 'o ia 'o ka po'i ho'opi'i, a ua māhele 'ia i 'ekolu 'āpana: overflow molds, semi-overflow molds, a me non{7}}overflow molds. ʻO nā mea maikaʻi nui o ka hoʻoheheʻe ʻia ʻana ʻo ia ka hiki ke hoʻoheheʻe i nā huahana me nā papa pālahalaha nui a hiki ke hana i nā mea nui. ʻO kona mau pōʻino he mau pōkole hana lōʻihi a me ka hana haʻahaʻa.
Hoʻoheheʻe ʻia
Hoʻohana maʻamau ka lamination molding i ka lamination press. ʻO kēia ʻano paʻi paʻi he nui nā papa paʻi wela e lana ana ma waena o nā pā kaomi neʻe a me ka paʻa. ʻO nā mea hoʻoikaika maʻamau i hoʻohana ʻia i ka lamination molding me ka lole pulupulu, ka lole aniani, ka pepa, a me ka lole asbestos. Loaʻa nā resins i nā resins phenolic, resins epoxy, resins polyester unsaturated, a me kekahi mau resins thermoplastic. ʻO ka hoʻoheheʻe ʻana i ka puhi ʻana, ka hoʻoheheʻe ʻia ʻana o ka puhi ʻana, ka hoʻoheheʻe ʻana i ka puhi ʻana, ka uhi ʻana i ke kiʻiʻoniʻoni, ka hoʻoheheʻe ʻana i ka wela, ka hoʻoheheʻe ʻana i ka moena wai, ka puhi ʻana i ka lapalapa, ka hoʻoheheʻe electrostatic, ka pā plasma.
Hoʻoheheʻe ʻia
ʻO ka hoʻoheheʻe ʻia ʻana, ʻike ʻia hoʻi ʻo extrusion molding a extrusion, he ʻano hana e hana mau ai i nā mea ma o ka make i loko o ke kahe kahe ʻana ma o ka hoʻomehana ʻana a me ke kaomi ʻana iā lākou i kahi extruder. Hoʻohana nui ʻia ka Extrusion no ka hoʻoheheʻe ʻana i nā thermoplastics, akā hiki ke hoʻohana ʻia no kekahi mau plastic thermosetting. ʻO nā huahana extruded he mau profiles mau, e like me nā paipu, nā koʻokoʻo, nā filament, nā kiʻiʻoniʻoni, a me ka uea a me ka sheathing cable. Eia kekahi, hiki ke hoʻohana ʻia no ka hui ʻana i ka plasticizing, plasticizing granulation, kala, a me ka hui ʻana. ʻO ka mīkini hoʻoheheʻe extrusion me nā lako extrusion, kahi mīkini hoʻoili, a me kahi ʻōnaehana hoʻomehana a hoʻomaha. Loaʻa nā ʻano extruder i ʻelua ʻano: ʻano wili (hoʻokahi wili a me - lehulehu) a me ke ʻano plunger. ʻO ka mua he kaʻina extrusion mau, aʻo ka mea hope he intermittent. ʻO ka hana kumu o ka -screw extruder hoʻokahi ka mea nui me ka mea hoʻouna, mea hānai, barela, wili, poʻo make, a me ka make. Hāʻule nā mea kōkua no nā extruders i ʻekolu mau ʻano nui: nā mea hana pretreatment (e like me ka lawe ʻana a me ka hoʻomaloʻo ʻana), nā lako hana extrudate (hoʻoulu ʻana, hoʻoluʻu, traction, ʻokiʻoki, a ʻōwili paha), a me nā lako hoʻokele kūlana hana.
Pultrusion Molding
ʻO ka Pultrusion kekahi o nā ʻano hana hoʻoheheʻe ʻia no ka hoʻomaʻamaʻa ʻana i ka fiber{0}}i hoʻoikaika ʻia. Hoʻohana ʻia ia no ka hana ʻana i nā ʻaoʻao me ke ʻano ʻāpana -paʻa paʻa a me ka lōʻihi palena ʻole. ʻO ke kaʻina hana hoʻoheheʻe ʻana, ʻo ia ke kaha kiʻi ʻana i nā fiber mau i hoʻokomo ʻia me ka resin ma o ka make wela, a laila hoʻōla hou i ka resin i loko o ke keʻena mehana e hana i kahi kiʻekiʻe kiʻekiʻe-ikaika i hoʻoikaika mau ʻia.
ʻO nā resins i hoʻohana mau ʻia no ka hoʻoheheʻe ʻana i ka pultrusion me ka polyester unsaturated, epoxy, a me ke silicone. ʻO ka resin polyester unsaturated ka mea i hoʻohana nui ʻia. ʻO ka mīkini hoʻoheheʻe pultrusion ka mea maʻamau i kahi mea hoʻonohonoho fiber, pahu resin, mea hana preforming, mea make a me ka mea hoʻomehana, mea traction, a me nā mea ʻoki.
