ʻO FR-4 kahi code o ka papa o nā mea pale ahi, ʻo ia hoʻi kahi kikoʻī kikoʻī e hiki i kahi mea resin ke hoʻopau iā ia iho ma hope o ke ahi ʻana.ʻAʻole ia he inoa waiwai, akā he papa waiwai.No laila, ʻo nā papa kaapuni PCB maʻamau, He nui nā ʻano o nā mea papa FR-4 i hoʻohana ʻia, akā ʻo ka hapa nui o lākou he mau mea hoʻohui i hana ʻia o Tera-Function epoxy resin me ka filler a me ke aniani fiber.

FR-4 epoxy aniani lole laminate, e like me nā mea hoʻohana like ʻole, ua kapa ʻia ka ʻoihana: FR-4 Epoxy Glass insulation board, epoxy board, brominated epoxy board, FR-4, Glass fiberboard, FR-4 reinforced board, FPC reinforced board , papa kaapuni hikiwawe i hooikaikaia, FR-4 papa epoxy, papa insulation pale ahi, FR-4 papa laminated, FR-4 glass fiberboard, epoxy glass lole papa, epoxy glass laminated board, circuit board drilling pad.

Loaʻa ka inoa FR4 mai ka ʻōnaehana helu NEMA kahi i kū ai ka 'FR' no ka 'fire retardant', e like me ka maʻamau UL94V-0.ʻO ka koho FR4 e ukali ʻia e TG130.ʻO ka TG e pili ana i ka mahana aniani hoʻololi - ʻo ka mahana kahi e hoʻomaka ai nā mea i hoʻoikaika ʻia i ke aniani e hoʻololi a palupalu.No nā papa maʻamau o Fusion he 130°C kēia waiwai, ʻoi aku ia ma mua o ka lawa no ka nui o nā noi.Hiki i nā mea kūikawā High TG ke pale i nā mahana o 170 - 180 ° C, e like me kā mākou mau mea 3250. Hiki i ka FR-5, G11 ke pale i nā mahana o 155 ° C.

ʻO ka hapa nui o nā laminates FR4 e kūʻē i ka lapalapa ahi i kona ʻano bromine, kahi halogen non-reactive i hoʻohana mau ʻia i nā ʻoihana no kāna mau waiwai hoʻopale ahi.Hāʻawi kēia i nā mea waiwai FR4 i nā mea maikaʻi loa ma ke ʻano he mea PCB waiwai e pili ana i ka palekana ahi i ka wā ma ke kula.He mea hōʻoluʻolu liʻiliʻi nō hoʻi inā ʻaʻole i kūpono kāu mau mea kūʻai aku.

Eia nō naʻe, ʻo ka bromine he halogen kahi mea ʻawaʻawa loa i hoʻokuʻu ʻia i loko o ke kaiapuni ke hoʻopau ʻia ka mea.Ua lawa nā mea liʻiliʻi i mea e hōʻeha nui ai i ke kanaka a i ʻole ka make.No ka hoʻemi ʻana i ka hoʻohana ʻana i ia mau mea pōʻino i kā mākou huahana o kēlā me kēia lā, hiki ke loaʻa nā laminates FR4 halogen-free.

I kēia mau lā, ua hoʻomohala mākou i ke keʻokeʻo a me ka ʻeleʻele halogen-free FR4 epoxy glassfiber laminate sheets, i kēia manawa ua hoʻohana ʻia e like me ka FPC reinforced board i ka iphone, nā pepa wela, a pēlā aku.