ʻO FR-4 kahi code o kahi papa o nā mea pale ahi, ʻo ia hoʻi kahi kikoʻī kikoʻī e hiki ai 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, flexible circuit board reinforced board, FR-4 epoxy laminate board, FR-4 epoxy laminate board papa, FR-4 papa aniani puluniu, epoxy aniani lole papa, epoxy aniani lole laminated papa, kaapuni papa wili.

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 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 laminate 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 hōʻemi 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 ʻo ia e like me ka FPC i hoʻoikaika ʻia i ka iphone, nā pepa wela, a pēlā aku.