ʻO ka hana o PCB e hoʻopilikia ʻia e nā mea he nui o waho a i ʻole kaiapuni, e like me ka makū, ka wela wela, ka paʻakai paʻakai a me nā mea kemika. ʻO ka pale pale he kiʻiʻoniʻoni polymer i uhi ʻia ma ka ʻili o ka PCB e pale i ka PCB a me kāna mau ʻāpana mai ka corrosion a me ka pollution kaiapuni.

Ma ka pale ʻana i ka hopena o nā mea haumia a me nā mea kūlohelohe, hiki i ka pale pale ke pale i ka corrosion o nā conductors, solder joints a me nā laina. Eia kekahi, hiki iā ia ke pāʻani i kahi hana i ka insulation, a laila e hōʻemi i ka hopena o ke koʻikoʻi wela a me ka mechanical i nā mea.

ʻO nā pale pale kahi mea nui o nā papa kaapuni paʻi. Aia ka mānoanoa ma waena o 3-8 mils (0.075-0.2 mm). Hoʻohana nui ʻia ia i ka aerospace, automotive, pūʻali koa, moana, kukui, mea kūʻai uila a me nā ʻoihana ʻoihana.

Nā ʻano o ka pale pale PCB

Wahi a ka haku mele, hiki ke hoʻokaʻawale ʻia nā pale pale i ʻelima mau ʻano, ʻo ia ka acrylic, epoxy, polyurethane, silicone a me p-xylene. ʻO ke koho ʻana i kahi uhi kikoʻī e pili ana i ka noi o ka PCB a me nā koi uila. Ma ke koho ʻana i nā mea kūpono e hiki ai ke pale pono ʻia ka PCB.

ʻO ka uhi pale acrylic:

ʻO ka resin Acrylic (AR) kahi polymer acrylic i hoʻoheheʻe ʻia i loko o kahi mea hoʻoheheʻe a hoʻohana ʻia e uhi i ka ʻili o ka PCB. Hiki ke palaki ʻia nā pale pale akulika e ka lima, e hoʻoheheʻe ʻia a hoʻopaʻa ʻia paha i loko o nā pale resin acrylic. ʻO kēia ka mea i hoʻohana pinepine ʻia no nā PCB.

Ka uhi pale polyurethane:

He pale maikaʻi loa ka uhi polyurethane (UR) i nā hopena o nā kemika, ka makū a me ka abrasion. He maʻalahi ka hoʻopili ʻana i nā pale pale Polyurethane (UR) akā paʻakikī ke wehe. ʻAʻole ʻōlelo ʻia e hoʻoponopono pololei iā ia me ka wela a i ʻole ka hao hao, no ka mea e hoʻokuʻu ia i ka isocyanate kinoea ʻona.

Epoxy resin (ʻano ER):

Loaʻa i ka epoxy resin nā waiwai paʻa i ke ʻano i nā wahi paʻakikī. He maʻalahi ke hoʻohana, akā e hōʻino i ke kaapuni ke wehe ʻia. ʻO ka epoxy resin ka mea maʻamau i ʻelua hui thermosetting. Hoʻōla ʻia nā pūhui hoʻokahi ʻāpana e ka wela a i ʻole ultraviolet radiation.

Silicone (ʻano SR):

Hoʻohana ʻia nā pale pale silicone (SR type) i nā wahi wela kiʻekiʻe. He mea maʻalahi ka hoʻopili ʻana o kēia ʻano uhi a he haʻahaʻa haʻahaʻa kona ʻona, a loaʻa nā hopena anti-wear a me ka moisture-proof. ʻO nā uhi silikoni he mau mea hoʻohui hoʻokahi.

Paraxylene:

Hoʻopili ʻia ka paraxylene coating i ka PCB me ka hoʻohana ʻana i kahi kaʻina hoʻoheheʻe kemika. Lilo ka Paraxylene i kinoea ke wela, a ma hope o ke kaʻina hana hoʻoluʻu, hoʻokomo ʻia i loko o ke keʻena kahi i polymerize a lilo i kiʻi ʻoniʻoni lahilahi. Hoʻopili ʻia ke kiʻiʻoniʻoni ma ka ʻili o ka PCB.

ʻO ke alakaʻi koho ʻana i ka uhi pale PCB

ʻO ke ʻano o ka hoʻopili conformal e pili ana i ka mānoanoa o ka uhi e pono ai, ka wahi e uhi ʻia, a me ke kiʻekiʻe o ka hoʻopili ʻana o ka uhi i ka papa a me kāna mau mea.

Pehea e hoʻopili ai i ka uhi conformal i ka PCB?

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