Mea Pono o PCB

Pehea e hana ʻia ai nā lamineka keleawe keleawe maʻamau? ʻO ka maʻamau, hana ʻia ka laminate keleawe keleawe i nā mea i hoʻoikaika ʻia (ka lole aniani aniani, ka aniani i manaʻo ʻia, pepa pepa impregnated, a me nā mea ʻē aʻe). , a hana ʻia i ke kiʻekiʻe wela a me ke kiʻekiʻe kiʻekiʻe i ka kaomi wela

Nā lamineka paʻa

He aha nā ʻano lamineka keleawe keleawe e hiki ke hoʻokaʻawale ʻia e like me ka rigidity a me ka maʻalahi o ka pā a me nā mea hoʻoikaika ʻokoʻa? Wahi a ka paʻakikī a me ka maʻalahi o ka pā, hiki ke hoʻokaʻawale ʻia i laminate keleawe paʻa paʻa a me ka laminate pale keleawe maʻalahi. Wahi a nā mea hoʻoikaika ʻokoʻa, hiki iā lākou ke hoʻokaʻawale ʻia i ʻehā mau ʻāpana: ka pepa i hoʻokumu ʻia, ka lole aniani e pili ana, nā mea hui (CEM series, a me nā mea ʻē aʻe) a me nā mea kūikawā i hoʻokumu ʻia (ceramic, metal based, etc.). 3. E wehewehe pōkole i ke koʻikoʻi o ka pae ʻāina GB / t4721-92.

keleawe

ʻO ka leka mua o ke ana huahana, C, ʻo ia hoʻi ka pepa hao keleawe.

Hōʻike nā leka ʻelua a ʻekolu i ka resin i hoʻohana ʻia no ka substrate;

Hōʻike nā leka ʻehā a ʻelima i nā mea e hoʻoikaika ai i hoʻohana ʻia no ka mea kumu. I ka hopena o ka leka, ua hoʻopili ʻia nā helu ʻelua e kahi laina ākea pōkole e hōʻike i ka helu huahana o ka ʻano like akā hana ʻokoʻa.

4. He aha ke ʻano o nā pōkole penei? JIS, ASTM, NEMA, mil, IPC, ANSI, IEC, BS <br /> JIS Japanese Industrial Standard <br /> ASTM American Society no ka hoʻāʻo ʻana a me nā mea maʻamau <Br /> NEMA ʻAmelika Hui Pū ʻIa ʻAmelika <br /> mil ʻAmelika pūʻali koa hae <br /> IPC American circuit interconnection a me ka Packaging Association mau hae <br /> ANSI American National Standards Association mau hae UL American Insurance Association keʻena hoʻokolohua hae <br /> nā hae o nā Komisina ʻElota ʻElekika ʻIkope <br /> Nā kūlana British Standards Association ʻo British DIN Kelemania Nā kūlana ʻĀina Standards VDE Kelemania mau uila uila CSA Nā Koina Koina Standards ʻo Kanada ma ke ʻano he kūlana Australia Standards Institute

5. E wehewehe pōkole i nā kūlana UL a me nā kino hōʻoia hōʻoia palekana? ʻO UL ka hoʻomaka o Underwriters Laboratories. Ua hoʻopuka ʻo UL e pili ana i nā palapala kūlana palekana 6000. ʻO nā kūlana e pili ana i nā laminate keleawe keleawe i loko o u1746.

6. He aha nā mahele nui ʻelua o ka pepa keleawe e like me nā ʻano hoʻomākaukau like ʻole? He aha lākou i kāhea ʻia ai i nā kūlana IPC? Ua hiki ke maheleia i loko o calendered keleawe pepa kini a me ka electrolytic keleawe pepa kini. Kāhea ʻia lākou ka papa W a me ka papa E i nā kūlana IPC

7. E wehewehe pōkole i nā hana hana a me nā hana hoʻomākaukau o ka pepa keleawe calendered a me ka foil keleawe electrolytic. Hana ʻia nā pepa keleawe kalena e ka pinepine ana i ka pā keleawe. E like me ke keleawe keleawe electrolytic, pono ka mālama ʻana i ka lāʻau ma hope o ka hana ʻana o ka pepa hulu hipa. ʻO ke kūlou kūlou a me ka coefficient elastis o ka foil keleawe calendered ʻoi aku ka kiʻekiʻe ma mua o ka foil keleawe electrolytic, ʻoi aku ke kiʻekiʻe o ka maʻa keleawe ma mua o ko ka electrolytic keleawe keleawe, a ʻoi aku ka maʻalahi o ka papahele ma mua o ke keleawe keleawe electrolytic.

8. E wehewehe pōkole i nā ʻano ʻenehana like ʻole o ka foil keleawe electrolytic a me ka hopena ma nā waiwai o ka laminate keleawe keleawe? A. Mānoanoa. > B. helehelena. C. Tensile ikaika a me ka elongation. ʻO ka elongation haʻahaʻa a me ka ikaika ʻoi i ka wela kiʻekiʻe e alakaʻi i ka loli o ke kūpaʻa dimensional a me ka pā o ka semi-conductor, ka hoʻoliʻiliʻi o ke ʻano o nā lua metallized i PCB a me ka haki o ka pepa keleawe ke hoʻohana nei PCB. D. ikaika Peel. ʻO ka ikaika o ka peel o LP, VLP a me SLP mau keleawe keleawe me ka haʻahaʻa Coarseness ma nā papa paʻi a me nā papa multilayer me nā laina maikaʻi ʻoi aku ka maikaʻi ma mua o nā keleawe keleawe maʻamau (STD a me HTZ). E. kūʻē heʻe. ʻO ka lōʻihi longitudinal a me ka transverse o ka foil keleawe electrolytic ʻoi aku ke kiʻekiʻe ma ke ala transverse ma mua o ka ʻaoʻao longitudinal. F. Kahuna ʻāpana. G. Etchability. > H. Ke kūpale ʻana o ka mahana wela. Ma waho aʻe o nā mea ʻenehana ʻewalu nui i luna o ka pepa keleawe, aia ka plasticity o ka pepa keleawe, ka hoʻopili ʻana o ka inika UV, ka maikaʻi o ke keleawe keleawe, ka coefficient electroplating a me ke kala o ka pepa keleawe.

9. E wehewehe pōkole i ka hana o ka lole aniani puluniu? ʻO nā mea hana maʻamau nā: ka maʻawe a me ka ʻano ulana, ka nui o ka ulana (ka nui o nā ʻēpē a me nā ulana weft), ka mānoanoa, ke kaupaona no kēlā me kēia ʻāpana, ka laulā a me ka ikaika haki (ikaika ikaika).

10. Wahi a ke kūlana NEMA, mahele pinepine ʻia nā lamineka keleawe paʻa pepa e like me kā lākou hana. He aha nā mea maʻamau? ʻO nā ʻano maʻamau e like me: XPC, xxxpc, FR-1 (xpc-fr), FR-2 (xxxpc-fr), fr-3, etc.

11. Hoʻohālikelike i nā laminate keleawe-keleawe paʻa me nā lole aniani epoxy i hoʻokumu ʻia i ka lamineka keleawe? ʻO kahi huahana i hana ʻia i ka pepa lāʻau pulp a i ʻole ka lole aniani aniani e like me ka hoʻoikaika ʻana, impregnated with resin, uhi ʻia me ka pepa keleawe keleawe ma nā ʻaoʻao ʻelua a ʻelua kaomi ʻia.