No ke aha he 1.6mm ka mānoanoa o ka pā PCB maʻamau

2021-12-14


  ʻO ka mānoanoa pāʻani PCB maʻamau he 0.8mm a 1.6.mm ma waena o 1.6.mm, a ua hoʻolālā ʻia ka mānoanoa o ka pā maʻamau e like me ka 1.6 mm o ka metric unit (e pili ana i 63mil), nui nā plugins Ua hoʻololi ʻia ka maʻamau e like me me 1.6mm, he aha ka 1.6mm mānoanoa maʻamau?


  Ua aʻo mākou ua hoʻolālā ʻia ka mokuna "PCB Development History" o ka "PCB development history" e ka hoʻolālā PCB. I ka wā o nā paipu, aia nō ka ʻoihana PCB i ka wā ulu. No ka mea nui ka nui o ka wela i hana ʻia e ka ʻāpana paipu, nui ka leo, ʻaʻole kūpono ke kau ʻana ma ka papa kaapuni i paʻi ʻia (Pono i kahi ikaika mechanical), ʻo ka hana ʻana o nā huahana uila i kēlā manawa he mea hana lima lima. . ʻOiaʻiʻo, pili kēia i ka hoʻomohala ʻana i ka mea substrate o ka PCB, e like me ka epoxy resin o ka PCB substrate (e ʻike i ka PCB o ke kolamu) ʻO kēia mokuna o ka resin substrate), ka ʻenehana hana o ka PCB substrate, ʻaʻole i kūʻai ʻia ke kala keleawe, etc.


  I ka makahiki 1920, ua hoʻohana ka poʻe hoʻomohala kaapuni i ka lāʻau uila (phenolic resins), gypsum board, cardboard, a me nā papa kaapuni hana lāʻau lahilahi (nā ʻano like me ka pā ana a i ʻole ka papa palaoa, me kahi papa kaapuni paʻi). E wili lākou i ka mea a laila hoʻopaʻa paʻa i ka uwea keleawe paʻa i ka papa e hana i kahi kaapuni pili me kahi rivet a i ʻole bolt.


  Ma waena o lākou, he phenolic resin ka lāʻau uila, mai ka German chemist Adolf Von Bayer (1835-1917) i hana mua ʻia ma 1872. I ka makahiki 1907, ua hānau ʻia ka American Chemist (1863-1944) ma Belgium (1863-1944) i hoʻomaikaʻi i ka hana. ʻenehana o ka resin phenolic, a ua hana ʻia ka resin, ʻoihana. Ma 1910, ua hoʻokumu ʻo ia i kahi Bakelite maʻamau a hoʻohana i ka inoa "Bakelite" "Bakelite" i ka phenolic resin trademark e like me kona inoa ponoʻī.


  I ka hoʻomaka ʻana o ke kenekulia 20, e hilinaʻi ana i ka Bakeland's phenolic resin manufacturing patents, ma Kelemānia, United Kingdom, Farani a me Iapana a me nā ʻāina ʻē aʻe, ua hoʻokō ʻia ka hana ʻoihana o nā resins phenolic. Hoʻomaka hoʻi ka hoʻohana nui ʻia ʻana o nā resins Phenolic i nā puʻupuʻu o ka lekiō, turntable, nā ʻāpana kau (nā papa kaapuni ʻole i paʻi ʻia), a me nā lekiō.


  I ka makahiki 1921, ua hoʻohui ʻia ka laminate i hana ʻia e Formica i ka hana ʻana o ka lekiō hale a me ka lekiō moana. I ka makahiki 1927, ua ʻike ʻo Formica ua hoʻohui ʻia ka hoʻokumu ʻana o ka pepa hoʻonaninani i ke kaʻina paʻi, a hiki ke hana ʻia kā lākou laminate i kahi hua lāʻau simulated. A me ke ʻano marble. I ka lilo ʻana o ka pā laminated i ʻoi aku ka waihoʻoluʻu a me ka hoʻonaninani, ua hoʻonui wikiwiki ʻia kāna mākeke. I kēlā manawa, aia kahi laminate phenolic ma ke ʻano he papa hoʻonaninani o ka papaʻaina.


  ʻO ka laminate Phenolic kahi mea polymer paʻa a maikaʻi i hoʻopaʻa ʻia me ka wela, ka wai ʻole, ka pale kemika a hiki ke kū i nā hiʻohiʻona o ka manawa kiʻekiʻe. ʻOiai ʻaʻole i hoʻomohala kūikawā ʻia e like me ka papa kaapuni, ʻoi aku ka nui o ka hoʻohana ʻana i ka hoʻonaninani Ma muli o ka hoʻohana ʻana i nā panela, ʻoi aku ka maikaʻi o ka phenolic laminate e like me ke kākoʻo kau ʻana o ka paipu a i ʻole ke kau ʻana o ka paipu, a he nui nā ka ikaika e pili ana i ka plasterboard, ka pepa pahu, a i ʻole nā ​​ʻāpana lāʻau lahilahi, a ua hoʻohana ʻia ka phenolic laminate ma kahi o ka pahu a i ʻole ka papa lāʻau lahilahi ma ke ʻano he kaapuni. He kūlohelohe ka papa a he mea kūlohelohe.


  Eia naʻe, i ka phenolic laminate, ua kuʻi ka phenolic laminate a laila hoʻohui i nā mea uila āpau. He mea luhi loa ia. ʻOi aku ka maikaʻi ma mua o ka pāʻani ʻana i ka papa ana. Ma hope o nā mea a pau, ua paʻa mua ka papa ana. ʻAʻole i liʻuliʻu, ua hele mai kekahi poʻe me kahi ʻano hana, e hoʻopaʻa i kahi pahu keleawe ma ka phenolic laminate, a laila etched i ka laina pili ma waena o nā ʻāpana o ke keleawe keleawe (1913, Berry in the United Kingdom invented the resistance Ua hoʻohana ʻia ka mea hana i ka metala foil, a me ka etch aole i uhiia, pela e hana ana i ka conductive kumu, i hana i ka hookahi-ʻaoʻao paʻi kaapuni papa Soon, i ka hooulu ana o ka interconnection nenoaiu ma waena o na papa he nui i ka pono o ka panel connector.


  I ka manawa o 1/16 inches a i ʻole 63 mil, ka mānoanoa hana o ka phenolic laminate i kēlā manawa, ua hoʻolālā maoli ʻia ka mea hoʻohui panel panel e like me ka mānoanoa o 1/16 iniha (e pili ana i 63 mil a i ʻole 1.6 mm), i hana ʻia. ʻO nā kaulahao ʻoihana kākoʻo, ʻo 1/16 iniha (ma kahi o 63 mil a i ʻole 1.6mm) mānoanoa hoʻi he ʻano maʻamau no ka ʻoihana.


  I kēia lā, ʻokoʻa loa ka hoʻomohala ʻana o ka mea substrate e like me FR4 pepa, akā, ʻo 1.6mm (a i ʻole 63mil o ka ʻāpana Pelekane) ʻo ia nō ka mānoanoa paʻa i hoʻoheheʻe ʻia o ka papa PCB hale hana, akā ua hoʻonui ʻia ka mānoanoa pā maʻamau i 0.8mm a 1.6mm. (Ma muli o ke kaʻina hana o ka hale hana papa, ʻo 0.6mm ~ 2.5mm kekahi hale hana pā.


  ʻOiaʻiʻo, inā hiki i ka PCB ke hana i ka thinner a i ʻole ka mānoanoa (e like me 20 papa) hiki nō hoʻi, e like me 0.4 mm a i ʻole 3.0 mm, akā makemake i nā koina payboard hou, pono e noʻonoʻo i ka wā i hoʻolālā ʻia ai ka PCB.


I ka hoʻoholo ʻana i ka mānoanoa PCB, pono e noʻonoʻo i nā mea hoʻolālā a me nā mea hana, e like me:

Ka mānoanoa keleawe

honua

Helu papa PCB

hoailona hōʻailona

ʻAno puka puka

Ka hana ʻana o ka hana

ʻO nā mea i hana ʻia e pili ana i ka mānoanoa o ka PCB penei:

Nā mana hana no nā mea hana wili

Ka mānoanoa keleawe

Helu papa

Māhele mahele


Nā mea pono e noʻonoʻo ʻia no ka hoʻolālā PCB o ka mānoanoa maʻamau ʻole:


1. Ka mana hana o ka hale hana papa

  ʻO ka mea mua e noʻonoʻo ai, aia i kāu hale hana papa nā mea hana e hana ai i ka mānoanoa āu e pono ai. Pono e hoʻoholo koke ʻia me ka noʻonoʻo ʻana i nā koi hoʻolālā DFM e pili ana. A i ʻole, e koi ʻia ʻoe e hoʻololi a hoʻolālā hou i kāu ʻōnaehana laminated PCB.


2. Hoʻonui i ka manawa hāʻawi

  Inā koho ʻia ka papa ʻaʻole ia he mea kū, hoʻonui pinepine ʻia i ka pōʻai hana o ka PCB, no laila pono e noʻonoʻo i ka manawa hāʻawi no ka mānoanoa papa ʻole.


3. Nā uku hou aku

  ʻO kēia paha ka mea koʻikoʻi loa, pono ʻoe e loiloi i ke kumukūʻai o nā pepa kūikawā, nā kumukūʻai hana hou, a me ka hoʻonui ʻana o ka manawa e hoʻoholo ai inā ʻae ʻia ke kumukūʻai hou.


Hoʻohana ka Priority i kahi mānoanoa PCB maʻamau e hoʻolilo i kāu papa i ka wikiwiki a me ka haʻahaʻa haʻahaʻa. Eia nō naʻe, inā hoʻoholo ʻoe e koho i kahi mānoanoa maʻamau ʻole, pono ʻoe e kamaʻilio me ka hale hana papa ma mua o ka hoʻomaka ʻana i ka hoʻolālā PCB, e hōʻoia i ke kaʻina hana hiki ke hana a kamaʻilio ʻia i ka wā o ka lawe ʻana a me nā kumukūʻai hana hou.


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