Ihe a na-ejikarị nke PCB: FR4

Gịnị bụ FR4?

Fr-4, otu n'ime mkpụrụ okwu eji eme ihe na-ejikarị ihe egwu, nke pụtara na ihe onwunwe na-enwu na-enwu ọkụ ga-enwerịrị onwe ya iji nwee ike ịmịcha onwe ya mgbe achara ya , edekwara ya dị ka FR4, bụ aha na ọkwa ọkọlọtọ. Ihe eji eme ihe eji eme ihe eji eme ihe ato mejuputa ihe ato: resin, ihe eji eme ihe, ma na-eduzi ọla kọpa .fr

Ihe ngosi nke FR-4 na-egosi bụ: ike, ike, ike na-ada, na-egbochi oke egwu, dielectic mfu ugo, disiction arụmọrụ , Warpage na nke a na-.G10 fr4 iko epoxy laminate

Ọdịdị PCB

1.glass akwa 1., fr-5

Site na akwa eletrik pụrụ iche na-etinye na gburugburu epoxy phenocy resin mgbe ogo dị elu gasịrị, nrụgide dị elu ma bụrụ ngwaahịa mkpakọ-dị ka mkpakọ.

Epoxy iko akwa akwa (a na-akpọkarị dịka: Board Board, bọọdụ Fadallas, fiberboard, fr4). Epoxy iko abụghị mkpụrụ nke mkpụrụ osisi na epoxy resin dị ka akwa mkpuchi na akwa mkpuchi

Epoxy Clow Fiber Conper Calper nwere ike dị elu, ihe dị mma na-eguzogide, ihe eji arụ ọrụ na-eme ka ọ dị okpukpu abụọ na-ebido, ihe iko na-acha uhie uhie na-agbaze, epoxy iko fiber akwa ọla kọpa A na-ejikarị ihe niile dị na ya niile nke ọla kọpa cladding, ọnụ ọgụgụ klaasị kacha ukwuu.

2. Nkeji,: fr-1, fr-2, fr-3, wdg.

Phenal Akwụkwọ mpempe akwụkwọ bụ Phenalic Rein dị ka ihe mgbochi, na osisi pulp fiber dị ka ihe dị elu .fr4, g10

3.com-ite Runstate: CEM-1 na cam-3

Typedị mkpụrụ osisi a bụ ọkachasị com usoro carp-crad cart car-carre ihe eji eme ihe) na cem-3 (epoxy iko na-anaghị eji ogologo) dị iche iche. Nchịkọta CEM EXE nwere ezigbo nhazi, enweghị nkọ, nkwụsi ike nke nnabata mmiri, ike na-eguzogide ya dị elu karịa mkpụrụ akwụkwọ (cem (cem ()) bụ ihe dị ka 80% nke fr-4, ọnụahịa dị ala karịa bọọdụ 3 fr-4.

4.specialial (ceramiiki, igwe, wdg)

FR na ọkwa Nema pụtara ire ọkụ ma ọ bụ na-eguzogide ọkụ, ya bụ ọkwa ọkụ na-eguzosi ike, na ọnụ ọgụgụ "4 bụ ịmata ọdịiche a na-eme site na ihe ndị ọzọ, 4 Ọnụọgụ "4" na-amata ihe ndị ọzọ site na ihe ndị ọzọ, na-egosi na resin bụ akwa nhicha ahụ, na ọkwa ọkụ na-enwu enwu bụ UL94 v-0. Fr-1, fr-2, na fr-3 bụ ul 94v-1 nwere ebe dị iche iche.

FR-4 bụ naanị otu n'ime akara ule dị na ọkwa mkpụrụ ọkwa Nema ma na-anọchite anya klaasị, ọ bụghị ihe a ga-eme. A na-enwekarị nsogbu bụ na fr-4 na-agbagha site na otu ihe dị ka ihe dị ka nke FR-4 na-enweghị atụ nke 4.2 na ọdịda nke 0.02, mana ọtụtụ ndị dị ala Akwụkwọ mpempe akwụkwọ bụkwa nke 4.

Fr-4 epoxy iko akwa laminate elu na agba bụ:

Odo fr-4, White FR-4, Black Fr-4, Blue F-4 na ndị ọzọ.

Njirimara: Njirimara eji arụ ọrụ na dielectoctic, ezigbo okpomọkụ na ntụchi mmiri na ịdị mma.

A na-eji: motors eletriki, ngwa eletriki maka akụkụ ndị na-eme ihe nkiri, gụnyere mpempe akwụkwọ na-agbanwe ngwa ngwa CPC, wdg (PCB ule) ma enwere ike iji ya na ọnọdụ gburugburu iru mmiri na mgbanwe mmanụ.

Njirimara ndị nkiti

Vetikal Lrimical na-agbagha a:

Portallition Limimar Posic ike (usoro osisi dị mfe): ≥230KJ / m

Mgbochi mgbochi na mmiri na mmiri (d - 24): ≥5.0 × 108

Ike Vetimical lamimar ike (na 90 ± 2 ℃ Plensiner mmanụ, Plate Pule 1mm): ≥14.2MV / m

Yiri ala na mgbawa ọkụ (na 90 ± 2 ℃ Mmanụ transpormer): ≥ 40kV

Dielectric Union (50hz): ≤5.5

Dielectric na-egbu oge (1mhz): ≤5.5

Dielectic m ọnwụ (50hz): ≤0.04

Dielectics ọnwụ (1mhz): ≤0.04

Mmiri mmiri (D-24/23, Plate Pulle 1.6mm): ≤19mg

Nnọọ: 1.70-1.90G / CM³

Flammaty: FV0

Njirimara usoro

(1) FR-4 Flat State na-agbaze (203 ℃)

(2) elu kemịkal dị elu

(3) Lost Love Press (DF 0.0025)

(4) kwụsiri ike na dielectric na-adịgide (DK 2.35)

(5) ihe eji eme ihe

EGO

Fr-4 epoxy iko akwa akwa mkpụrụ, bụ klas nke mkpụrụ osisi na epoxy resin dị ka akwa mkpuchi iko nke ọma. Mpempe akwụkwọ nke njikọ ya na ime dị n'ime ya na clad laminate dị mkpa maka ịme ọtụtụ sekio sekit.

Emume ngosi

Epoxy iko fiber akwa eji eme ihe, nguzosi ike, mmetuta iguzogide elu akwukwo. Ọ nwere ihe dị mma eletriki, elu okpomọkụ dị elu, yana gburugburu ebe obibi ya emetụtaghị arụmọrụ ya. Na teknụzụ nhazi, karịa mkpụrụ osisi ọla kọpa nwere nnukwu ịdị elu. A na-eji ngwaahịa ndị a eme ihe maka PCB abụọ, yana nnukwu ego.

Ngwa

Epoxy F facellaslass mkpụrụ, ụdị ngwaahịa FR-4, n'ihi mkpa ọrụ nrụpụta nrụpụta kọmputa na PCB, yana ngwaahịa TG FR-4 dị elu.