ʻO nā hiʻohiʻona ʻehā o ka pepa epoxy FR4 halogen-free

2023-10-25

ʻO nā hiʻohiʻona ʻehā o ka pepa epoxy FR4 halogen-free 


  FR-4 halogen-ʻole epoxy hana ʻia ka papa e ka puluna aniani uila-wela i hoʻokomo ʻia me ka resin epoxy ʻole halogen. He kala melemele kona a hoʻohana mua ʻia ma ke ʻano he insulating structural component i nā lako uila a me nā kaʻa. No ka loaʻa ʻole o nā halogens (fluorine, chlorine, bromine, iodine, arsenic), ʻaʻole ia e hana i nā kinoea ʻawaʻawa ke puhi ʻia, e hoʻokō ana i nā koi hana ʻōmaʻomaʻo.


FR4 pepa epoxy

 

ʻO kāna mau mea maikaʻi:

 

  ʻO ka mea mua, mālama kaiapuni. I kēia mau makahiki i hala iho nei, ua paʻakikī ka haumia o ke kaiapuni, a ua nui nā wahi i ʻike i ka ʻino. Ke hopohopo nui nei ka poʻe e pili ana i ka mālama ʻana i ke kaiapuni, a ʻo ka FR-4 halogen-free epoxy board ʻaʻole ia he mea ʻawaʻawa a pili i ke kaiapuni.

 

  ʻO ka lua, ke kūpaʻa wela kiʻekiʻe. ʻO ka FR-4 halogen-free epoxy board he pale wela maikaʻi a hiki ke pale i nā mahana a hiki i 150 ℃.

 

  ʻO ke kolu, ka hoʻopololei. Hiki ke piʻi i ka 4KV ka puʻuwai haʻihaʻi o FR-40 halogen-free epoxy board. ʻOiai ke piʻi aʻe nei ka hoʻohana uila o Kina a ke piʻi mālie nei ka uila, aia nō kahi āpau e hiki ai i ka puʻuwai haʻihaʻi o ka papa epoxy FR-4.

 

  ʻO ka hā, ʻo ka ʻai wai. Hiki iā ia ke pale pono i ka makū, me ka manawa mālama lōʻihi.

 

ʻO ka wehewehe ʻana i nā hana hoʻopau uila ʻekolu o ka pepa epoxy FR4

  ʻO ka hilinaʻi a me ke ola lawelawe o ka wili FR4 pepa epoxy hilinaʻi nui i ka hana o ka mea insulation. ʻO nā koi maʻamau no ka hana insulation mea e pili ana i ka uila, thermal, a me nā waiwai mechanical. E hōʻike pōkole ana kēia ʻatikala i nā waiwai uila o nā mea hoʻokalakupua, me ka ikaika haʻihaʻi, ka pale ʻana i ka insulation, dielectric mau, a me ka nalowale dielectric. E wehewehe kēia ʻatikala i nā ʻano ʻekolu o ka hana hoʻopau uila FR4 pepa epoxy.


FR4 papa epoxy


  Hōʻike ʻia ka ikaika haʻihaʻi ʻana o nā mea insulation ma nā kilovolts i kēlā me kēia millimeter ma o ka puʻunaue ʻana i ka mānoanoa o ka mea hoʻokaʻawale ma ka wahi haʻihaʻi e ka volta haʻihaʻi. Hiki ke hoʻokaʻawale ʻia ka haʻihaʻi insulation i ʻekolu mau ʻano: ka haʻihaʻi uila, ka haʻihaʻi wela, a me ka hoʻokuʻu ʻana.

 

  FR4 epoxy sheet uila breakdown performance i ka wā e neʻe ikaika ai nā ʻāpana i hoʻopaʻa ʻia i loko o ka mea insulation ma lalo o ka mana o ke kahua uila ikaika, e hoʻoulu ai i ka hui ʻana a me ka ionization, e wāwahi ana i ka hale molekala, a i ka hopena i ka haki ʻana i ka uila. Piʻi ka puʻuwai haʻihaʻi i ka laina me ka mānoanoa o ka mea, a ma ke kahua uila like ʻole, kūʻokoʻa ka ikaika haʻihaʻi i ka lōʻihi o ka puʻupuʻu uila ke ʻole ka pōkole o ka pulse ma mua o 10 kekona.

 

  FR4 pepa epoxy Hana ʻia ka hoʻopau ʻana i ka wela i ka wā i hana ʻia ai ka wela i loko o ka mea insulation ma muli o nā poho dielectric ma lalo o ka hana ʻana o kahi māla uila. Inā ʻaʻole hiki ke hoʻokuʻu ʻia ka wela i ka manawa, piʻi ka mahana o loko o ka mea, e hōʻino ana i ka hale molekala. Hoʻemi ka puʻupuʻu haʻihaʻi i ka piʻi ʻana o ka mahana ambient, piʻi ka mānoanoa o nā mea, a me nā kūlana hoʻopau wela. Ke piʻi ka alapine, piʻi ka poho dielectric, a emi pū ka ikaika wāwahi.

 

  Hana ʻia ka FR4 epoxy sheet discharge breakdown performance i ka wā i hoʻokuʻu ʻia ai nā ʻōpala i loko o ka hoʻokuʻu ʻia ʻana o nā mea insulation ma muli o ka ionization ma lalo o ka hana o kahi kahua uila ikaika, a vaporize nā mea haumia ma muli o ka hoʻomehana ʻana, e hana ana i nā ʻōpū, e hoʻomohala hou i ka hoʻokuʻu ʻana, e alakaʻi ana i ka haki ʻana o ka holoʻokoʻa. mea waiwai.

 

  Hoʻopili pinepine ka hoʻohaʻahaʻa insulation i nā ʻano ʻekolu i ʻōlelo ʻia ma luna, e paʻakikī ke hoʻokaʻawale iā lākou. ʻO ka hoʻopili ʻana i nā mea insulation me ka insulating varnish a i ʻole adhesive hiki ke hoʻomaikaʻi i ka hāʻawi ʻana i ke kahua uila a hoʻonui i ka ikaika haʻihaʻi, a me ka hoʻomaikaʻi ʻana i nā kūlana hoʻoheheʻe wela e hoʻonui ai i ka ikaika hoʻomaha wela.

 

He aha ka waiwai nui o ka papa epoxy ma ke kahua uila?


  Ke ʻoi aku ka ikaika o ke kahua uila i ka papa epoxy ma mua o ka waiwai koʻikoʻi, e piʻi nui ana ka mea e hele nei i ka mea insulation, e hoʻoheheʻe a decompose paha ka mea insulation, e nalowale loa i kāna mau waiwai insulating. Ua kapa ʻia kēia ʻano he insulation breakdown. ʻO ka volta i hiki mai ai ka haʻihaʻi ʻana, ua kapa ʻia ʻo ia ʻo ka breakdown voltage, a ʻo ka ikaika o ke kahua uila i ka wā haki i kapa ʻia ʻo ka breakdown strength, i hōʻike ʻia ma kV/mm.


papa epoxy


  Hiki ke hoʻokaʻawale ʻia ka haʻihaʻi ʻana o ka papa epoxy paʻa i ʻekolu mau ʻano: ka haʻihaʻi uila, ka haʻihaʻi wela, a me ka haki ʻana. Ma lalo o ka hana a ke kahua uila ikaika, neʻe ikaika nā ʻāpana i hoʻopaʻa ʻia i loko o ka mea insulation, e hoʻoulu ai i ka hui ʻana a me ka ionization, e wāwahi ana i ke ʻano molekala, hoʻonui i ka conductivity, a i ka hopena e hoʻopau i ka uila. Ma lalo o ka hana ʻana o kahi māla uila, hana ʻia ka wela i loko o ka mea insulation ma muli o nā poho dielectric. Inā ʻaʻole hiki ke hoʻopau ʻia ka wela i ka manawa, piʻi ka mahana i loko o ka mea, e hōʻino a me ka haki ʻana o ka molecular structure, i kapa ʻia ʻo thermal breakdown. Hoʻokuʻu ʻia ka haki ʻana i ka wā e hoʻokuʻu ʻia ai nā ʻōpala i loko o ka insulation material ma muli o ka ionization ma lalo o ka hana o kahi māla uila ikaika, a vaporize nā haumia ma muli o ka hoʻomehana ʻana, e hana ana i nā ʻōpala, e hoʻomohala hou i ka hoʻokuʻu ʻana, e alakaʻi ana i ka haki ʻana o nā mea āpau.

 

  ʻO ka puʻupuʻu hoʻohaʻahaʻa e pili ana i ka voltage kahi e hoʻopau ai ka specimen papa epoxy i ka wā o ka hoʻāʻo ʻana i ka volta ma lalo o nā kūlana hoʻāʻo. ʻO ka ikaika uila e pili ana i ka quotient o ka puʻupuʻu haʻihaʻi a me ka mamao ma waena o nā electrodes ʻelua i hoʻopili ʻia ka volta ma lalo o nā kūlana hoʻāʻo. Hiki ke hoʻohana ʻia nā hopena hoʻāʻo ikaika uila no ka ʻike ʻana i nā loli a i ʻole nā ​​​​hele i ka hana e pili ana i nā waiwai maʻamau i hoʻololi ʻia e nā loli kaʻina, nā kūlana ʻelemakule, a i ʻole nā ​​​​mea hana ʻē aʻe a i ʻole nā ​​kūlana kaiapuni.


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