Akụrụngwa nke PCB

Kedu ka esi eme laminates ọla kọpa nkịtị? N’ozuzu, a na-eji ihe ndị a kwalitere eme akwa laminate nke ejiri ọla kọpa kpuchie (akwa eriri iko, mmetụta iko, akwụkwọ eriri etinyere etisasị, wdg), tinye ya na nrapado resin, akpọnwụwo, bee ma tụba n’ime oghere, wee were foil ọla kpuchie ya, efere nchara dị ka ebu. , ma kpụrụ ya na oke okpomọkụ na nnukwu nrụgide na pịa ọkụ

Ụdị laminates

Kedu ụdị laminates ọla kọpa nwere ike kewaa dịka ịdị ike na mgbanwe nke efere na ihe nkwado dị iche iche? Dabere na ike na mgbanwe nke efere ahụ, enwere ike kewaa ya na laminate ọla kọpa siri ike na laminate ọla kọpa na -agbanwe agbanwe. Dabere na ihe nkwado dị iche iche, enwere ike kewaa ha ụzọ anọ: dabere na akwụkwọ, akwa iko dabere, ihe mejupụtara (usoro CEM, wdg) na ihe pụrụ iche dabere (seramiiki, igwe dabere, wdg). 3. Kọwaa nkenke ịdị mkpa nke ọkọlọtọ mba GB / t4721-92.

ọla kọpa

Akwụkwọ ozi mbụ nke ihe nlereanya ngwaahịa, C, pụtara foil nke ejiri ọla kọpa kpuchie.

Akwụkwọ ozi nke abụọ na nke atọ na -egosi resin ejiri maka mkpụrụ;

Akwụkwọ ozi nke anọ na nke ise na -egosi ihe na -akwado ihe eji eme ihe; Na ngwụcha akwụkwọ ozi, ejikọtara ọnụọgụ abụọ site n’ahịrị dị mkpirikpi iji nọchite anya akara ngwaahịa nke otu ụdị mana arụmọrụ dị iche.

4. Kedu ihe ndebiri okwu ndị a pụtara? JIS, ASTM, NEMA, mil, IPC, ANSI, IEC, BS <br /> JIS Japanese Industrial Standard <br /> ASTM American Society for test and materials standard <Br /> NEMA American Manufacturing Association standard <br /> mil American ụkpụrụ ndị agha <br /> IPC American circuit interconnection and Packaging Association standards <br /> ANSI American National Standards Association standard UL American Insurance Association ụkpụrụ ụlọ nyocha <br /> IEC International Electrotechnical Commission ụkpụrụ <br /> BS British Standards Association standard DIN German Ụkpụrụ Association ụkpụrụ VDE ụkpụrụ eletriki German CSA Canadian Standards Association dị ka ụkpụrụ ụlọ ọrụ Australia Standards Institute

5. Kọwaa nkenke ụkpụrụ UL na ahụ asambodo ogo na nchekwa? UL bụ mmalite nke Underwriters Laboratories. UL enyela akwụkwọ gbasara nchekwa nchekwa 6000. Ụkpụrụ metụtara laminates kpuchiri ọla kọpa dị na u1746.

6. Kedu ihe bụ isi abụọ nke foil ọla dị ka ụzọ nkwadebe dị iche iche si dị? Kedu ihe akpọrọ ha n’ụkpụrụ IPC? Enwere ike kewaa ya n’ụdị foil ọla kọpa na foil ọla kọpa electrolytic. A na -akpọ ha klaasị W na klaasị E n’otu n’otu na ụkpụrụ IPC

7. Kọwaa nkenke njirimara arụmọrụ yana ụzọ nkwadebe nke foil ọla kọpa etinyere na foil ọla kọpa electrolytic. A na -eme foil ọla kọpa nke emere site na mpịakọta ọla kọpa ugboro ugboro. Dị ka foil ọla kọpa electrolytic, ọ chọrọ ọgwụgwọ siri ike mgbe emepụtachara ajị anụ. Nguzogide na -ehulata na ọnụọgụ na -agbanwe agbanwe nke foil ọla kọpa dị elu karịa nke foil ọla kọpa, ịdị ọcha ọla kọpa dị elu karịa nke foil ọla kọpa electrolytic, na ebe siri ike dị nro karịa nke foil ọla kọpa electrolytic.

8. Nkọwa nkenke kọwaa ihe dị iche iche teknụzụ nke foil ọla kọpa electrolytic na mmetụta ya na akụrụngwa nke laminate ọla kọpa? A. Ọkpụrụkpụ. > B. Ọdịdị. C. Ike ọdụdọ na elongation. Mgbatị dị ala na ike ndọda na oke okpomọkụ ga-eduga ngbanwe nke nkwụsi ike akụkụ na ịdị larịị nke onye na-eduzi ọkara, ọdịda nke ịdị mma nke oghere ndị mepere emepe na PCB na mgbaji ọla kọpa mgbe ị na-eji PCB. D. Peel ike. Ike peel nke LP, VLP na SLP foils ọla kọpa nwere obere coarseness na mbadamba ebipụta na bọọdụ ọtụtụ nwere ahịrị dị mma karịa nke foils ọla kọpa (STD na HTZ). E. Ịkpakọba nguzogide. Ọdịiche ogologo na transverse nke foil ọla kọpa electrolytic dịtụ elu na ntụgharị ntụgharị karịa na ogologo ogologo. F. Isi ike. G. Ịnwere ike. > H. Ọdịdị na -eguzogide oxidation dị elu. Na mgbakwunye na njirimara teknụzụ asatọ dị n’elu nke foil ọla kọpa, enwere plastik nke foil ọla, nrapado ink UV, ịdị mma nke foil ọla kọpa, ọnụọgụ electroplating na agba nke foil ọla.

9. Kọwaa nkenke arụmọrụ akwa akwa fiberglass? Ihe arụmọrụ bụ isi gụnyere: ụdị ike na akwa akwa, njupụta ịkpa akwa (ọnụọgụ nke eriri na akwa akwa), ọkpụrụkpụ, ịdị arọ n’otu mpaghara, obosara na ike na -emebi (ike ọdụdọ).

10. Dịka ụkpụrụ NEMA siri dị, a na-ekekarị laminates nke ejiri ọla kọpa mee dị ka ọrụ ha si dị. Kedu ihe bụ ndị nkịtị? Ụdị ndị a na-ahụkarị gụnyere: XPC, xxxpc, FR-1 (xpc-fr), FR-2 (xxxpc-fr), fr-3, wdg.

11. Tulee laminate nke ejiri ọla kọpa kpuchie ya na akwa akwa epoxy dabere na laminate ọla kọpa? Ngwaahịa e ji akwụkwọ pulp osisi ma ọ bụ akwa eriri iko mee ka ọ bụrụ ihe nkwado, ejiri resin kpuchie ya, ejiri foil kpuchie ya n’otu ma ọ bụ n’akụkụ abụọ wee pịa ya ọkụ.