Hoʻokahuli ʻike ʻia no kona maʻalahi a me ka hiki ke hana i nā ʻāpana i hoʻolālā ʻia e hoʻonui i ka hana a me ka hoʻopiʻi ʻike. ʻO kēia ʻano hana, e pili ana i ka hoʻopili ʻana i kahi papa hou o nā mea ma luna o kahi ʻāpana i hoʻoheheʻe ʻia. Ke koi nei i kahi ʻike hohonu i nā pono kūʻokoʻa o kēlā me kēia ʻāpana i hana ʻia. Ma waena o kēia mau koi, he mea koʻikoʻi ke koho ʻana i nā mea kūpono no ka overmolding. He mea koʻikoʻi ke koho ʻana i nā mea no ke kumu a me ka over-mold e hoʻohālikelike i nā mea kemika a me ka wela. ʻO ka mālama ʻole ʻana e hiki ke loaʻa i nā hopena pōʻino, e like me ka nalo ʻana o ka huahana a i ʻole ka hoʻololi ʻana. No laila, ʻo ka hōʻoia ʻana i kahi huahana overmolding kiʻekiʻe a paʻa pono i ke koho ʻana i nā mea overmolding. Pono ka hoʻomaopopo piha ʻana i kā lākou mau waiwai a me ke ʻano o ka launa pū ʻana.

ʻO ka overmolding Materials no ke kaʻina hana hoʻoheheʻe

Kū ka overmolding ma ke ʻano he kī ka hana wikiwiki ʻana hoʻokokoke, hiki ke hana i nā ʻāpana ikaika a paʻa. ʻO ka hoʻohui ʻana i nā ʻano mea like ʻole e wehe i ka puka i kahi ākea o nā mea paʻa no kēlā me kēia ʻāpana. Nui ka ʻoihana me nā resins like ʻole, hāʻawi kēlā me kēia i nā pono kūʻokoʻa. Mai ka paʻa o ka polypropylene a me ka polyethylene a hiki i ka wela a me ka palekana i hāʻawi ʻia e silicone, aia kahi resin kūpono no nā mea a pau e hoʻohana ai, me ke kūpaʻa a me ka pliability i hāʻawi ʻia e nā elastomers thermoplastic. Hiki ke ʻenekinia ʻia nā ʻāpana e hoʻomaikaʻi i ka lōʻihi, ke kū ʻana i ka wā, a i ʻole nā ​​hiʻohiʻona aesthetic ma o ka hoʻohui pono ʻana i nā mea like ʻole. Ma muli o kona hoʻololi ʻana, hoʻohana nui ʻia ka over-molding i nā ʻoihana he nui, e like me ka uila, mālama olakino, a me kaʻa, kahi e pono ai ka hana ʻana i nā mea ʻoi aku ka lōʻihi.

He aha ka mea i loaʻa ma o ka overmolding mea?

Hoʻopili ʻia ka overmolding i ka hoʻokomo ʻana i kahi mea plastik a i ʻole mea metala i loko o kahi poni hou aʻe i ka lua o ka pae, kahi i hana ʻia ai kahi lua. I loko o kēia hakahaka, hoʻokomo ʻia kahi mea hoʻoheheʻe lua, maʻamau ka elastomeric ʻoiai hiki ke paʻa. Hoʻopili kēia mea i ka mea i hoʻopili mua ʻia, e hoʻopiha ana i ka lua hou a hoʻopaʻa kemika me ka mea kumu e hana i kahi ʻāpana hui. ʻAneʻane kūpono kēlā me kēia ʻano polymer no ka hoʻoheheʻe ʻana i kahi mea ʻē aʻe.

ʻO ka mea maʻamau, uhi ʻia nā ʻōpala thermoplastic a me nā elastomers thermoplastic (TPR a me TPE) ma luna o nā māka like ʻole o ka ʻenekinia a me nā plastik mea kūʻai aku, e hoʻonui ai i ka nani, e hāʻawi ana i ke kūpaʻa haʻalulu, a i ʻole ka hoʻomaikaʻi ʻana i ka paʻa. No nā huahana e koi ana i nā pae kiʻekiʻe o ka pale ʻana i ka ingress, e like me nā mea i hoʻohana ʻia i loko o nā hoʻonohonoho kai a i waho paha, he hana koʻikoʻi ka over-molding. Hoʻomaʻamaʻa ia i ka hana ʻana i nā sila kikoʻī, kiʻekiʻe kiʻekiʻe e mālama pono i ka wā o ka hoʻopili ʻana a me ka hoʻoheheʻe ʻana i nā ʻāpana casing, e lanakila ana i nā pilikia maʻamau o ka hoʻopili ʻana i nā sila O-ring. ʻOiai ʻo TPR a me TPE ka mea hoʻohana pinepine ʻia, nā mea ʻē aʻe e like me ka wai hoʻoheheʻe ʻia ʻo silicone ʻO nā fluoroelastomers kekahi mau koho no kēia mau noi.

Mea maʻamau i hoʻohana ʻia Overmolding

Acrylonitrile Butadiene Styrene (ABS)

Kaulana no nā mea kūʻai aku a me nā ʻāpana kaʻa ma muli o kona kūlike me nā mea palupalu, elastomeric i hoʻohana ʻia no nā ʻōpala a me nā sila. Hōʻike pinepine ia i nā hoʻomaikaʻi hoʻopili mechanical e hoʻopaʻa i ka mea i hoʻoheheʻe ʻia, e hōʻemi ana i ka hilinaʻi ʻana i ka hoʻopili kemika.

Mea hoʻoheheʻe ʻia: Polypropylene (PP)

He polimer kūpaʻa a maʻalahi i hoʻohana ʻia i nā mea kūʻai aku a me nā huahana mea kūʻai aku kiʻekiʻe. Ua hoʻonui ʻia ka hoʻopiʻi ʻana o ka holomua o ka hana ʻana, ʻoi aku ka nui o nā mea e like me nā pulupulu niho uila. Ua hoʻomohala ʻia nā TPE kūikawā e pili i ka PP, e lanakila ana i kāna mau pilikia haʻahaʻa.

Polyethylene Haʻahaʻa Haʻahaʻa (LDPE)

ʻIke ʻia no ka hoʻohana ʻana i ka paipu a me nā lako meaʻai, ʻo ka ikehu haʻahaʻa haʻahaʻa o LDPE i kaupalena ʻia ma mua o ka hoʻoheheʻe ʻana. Eia nō naʻe, ua hoʻonui ʻia nā ʻano like ʻole TPE hou i ko lākou hiki ke hoʻoheheʻe ʻia ʻoiai ʻaʻole maʻamau ka nele i ka hiki ke hoʻopaʻa mechanical me ka metala.

Mea hoʻoheheʻe ʻia: Thermoplastic Elastomers (TPEs)

ʻOiai ʻo nā TPE he papa maʻalahi o nā elastomers e hana maikaʻi no ka hoʻoheheʻe ʻana, hiki iā lākou ke loaʻa nā pilikia adhesion a paʻa i ka manawa. Loaʻa iā lākou kekahi mau subtypes me nā ʻano a me nā hoʻohana ʻokoʻa, e like me TPV, TPO, TPU, a me TPS.

Polyethylene Kiekie (HDPE)

ʻO kona kūpaʻa kemika a me ka ikehu ʻili haʻahaʻa e hoʻopili i ka adhesion overmold. Hiki i nā lāʻau lapaʻau ke hoʻomaikaʻi i ka adhesion no ka hoʻopili ʻana i nā ʻāpana, akā ʻoi aku ka maʻamau o HDPE no ka hoʻopili ʻana i nā ʻāpana metala ma o nā ʻano mechanical.

nā mea hoʻoheheʻe ʻia: Polyoxymethylene (POM)

Kaʻana like i nā waiwai he nui me HDPE, me ka ikehu haʻahaʻa haʻahaʻa, no laila ʻaʻole kūpono ia no ka lua polymer over-molding. Eia naʻe, maikaʻi ia i ka overmolding hana hoʻoheheʻeʻia nā ʻāpana metala ma muli o kona paʻakikī.

Polyetherimide (PEI)

ʻO kahi polymer hana kiʻekiʻe i mahalo ʻia no kāna mau mea wela, mechanical, a me kemika. ʻOi aku ka PEI i ka hoʻokomo ʻana me nā metala, hāʻawi i ka ikaika kiʻekiʻe a me ke kūpaʻa wela, a hoʻohana pinepine ʻia i nā mea lapaʻau a me nā mea ʻepekema.

Ka ikaika o ka overmolding mea

Hoʻoholo ʻia ka hana o nā mea i hoʻoheheʻe ʻia e ke koho ʻana o nā polymers. ʻO nā polymers maʻalahi e like me TPU, TPE, a me TPR e hāʻawi i ka elasticity akā ʻoi aku ka maʻalahi o ka ʻaʻahu ʻana a kūpono i nā huahana pili i ka hopena a i ʻole nā ​​​​huahana palupalu. Ma ka ʻaoʻao ʻē aʻe, hāʻawi ʻo LSR a me EPDM i ka ʻoi aku ka paʻakikī a me ka lōʻihi, kahi e kūpono ai lākou no nā kūlana paʻakikī.

ʻO ka hoʻohana ʻana i nā polymers paʻakikī a i ʻole ka ʻenekinia i ka hoʻoheheʻe ʻana e hāʻawi i nā ʻāpana me ka ikaika e like me ka metala akā ʻoi aku ka māmā a me ka pale ʻana i ka corrosion. Hoʻonui kēia ala i ka lōʻihi, ka pale ʻana i ka wā, a me nā hiʻohiʻona ma nā ʻāpana e like me ka uila, automotive, a me ka mālama olakino. ʻO ka hoʻoheheʻe ʻana maikaʻi e hilinaʻi ʻia i ke koho ʻana i nā mea me nā pae kūpono o ka paʻakikī e hōʻoia i ka hana ʻana i nā ʻāpana paʻa, kiʻekiʻe.

ʻO ka lōʻihi o ke ola ʻana o nā mea overmolding

ʻO ka abrasion a me ka lole lole ʻelua mau mea e pili ana i ka lōʻihi a me ka ikaika o nā mea i hoʻoheheʻe ʻia. Hiki ke hoʻopaʻa ʻia ka lōʻihi o ka mea inā pili ia i nā mea e hoʻohaumia ana i kona kūpaʻa kemika, e like me ka radiation UV, nā kemika oxidizing, a i ʻole nā ​​wela kiʻekiʻe loa. Hiki i nā mea palupalu ke loaʻa i nā ola hoʻohana pōkole no ka mea ʻoi aku ka nui o ka haki ʻana, ʻāʻī, a me ka flake ma lalo o ke kaumaha. ʻO ka hilinaʻi ʻana i nā pili mechanical e hoʻonui i kēia mau pilikia a hōʻemi i ka lōʻihi o ka hana ʻana o nā ʻāpana i hoʻoheheʻe ʻia.

Panina

I ka hōʻuluʻulu ʻana, ʻo ke koho ʻana i nā mea hana no ka over-molding he kaʻina hana paʻakikī e hoʻopaʻa i ke kaulike ma waena o ka hiki ke hoʻololi, ka paʻa, a me ka hoʻopiʻi ʻike e hoʻokō i nā pono noi. Hāʻawi kēlā me kēia mea i kahi pōmaikaʻi kūʻokoʻa i ke kaʻina hana over-molding, mai ka pliability o ka ethylene propylene diene monomer (EPDM) a me ka rubber silicone wai (LSR) a hiki i ka ikaika o nā elastomers thermoplastic (TPE), polyurethanes (TPU), a me nā ʻōpala thermoplastic. (TPR). Manaʻo nui ʻia nā polymers kiʻekiʻe no ko lākou hui pū ʻana o ka ikaika, nā waiwai māmā, a me ke kūpaʻa ʻana i ka corrosion, e hāʻawi ana i kahi hana metala me nā pono hou aʻe. ʻO kēia koho koʻikoʻi o nā mea waiwai ke kumu i ka kūleʻa o ka over-molding i nā ʻoihana koʻikoʻi e like me ka uila, automotive, a me ka mālama olakino, e hōʻoiaʻiʻo ana ʻaʻole e hana maikaʻi nā ʻāpana hopena akā hoʻokō pū kekahi i nā kūlana kiʻekiʻe o ka maikaʻi ʻike.

Ma waho aʻe o ka overmolding, hāʻawi pū ʻo TEAM Rapid hoʻokomo hoʻoheheʻe, hoʻoheheʻe ʻia, prototyping wikiwiki, a ke make etc e hoʻokō i kāu mau papahana. E hoʻokaʻaʻike mai iā mākou i kēia lā e noi i kahi manaʻo manuahi i kēia manawa.