PCB dole ne ya zama mai jure wuta kuma ba zai iya ƙonewa a wani zafin jiki ba, kawai don tausasa. Matsayin zafin jiki a wannan lokacin ana kiransa zafin canjin gilashin (TG point), wanda ke da alaƙa da girman kwanciyar hankali na PCB.

Menene babban TG PCB da fa'idodin amfani da babban TG PCB?

Lokacin da yawan zafin jiki na TG PCB ya tashi zuwa wasu, substrate zai canza daga "jihar gilashi" zuwa "jihar roba", sa'an nan kuma yawan zafin jiki a wannan lokacin ana kiran shi da zazzabi na vitrification (TG) na hukumar. A wasu kalmomi, TG shine mafi girman zafin jiki wanda substrate ya kasance mai ƙarfi.

Wane nau'i ne na hukumar PCB ke da shi musamman?

Matsayin daga ƙasa zuwa sama yana nunawa kamar ƙasa:

94HB - 94VO - 22F - CEM-1 - CEM-3 - FR-4

Cikakkun bayanai sune kamar haka:

94HB: kwali na yau da kullun, ba mai hana wuta ba (kayan mafi ƙasƙanci, bugun naushi, ba za a iya sanya shi cikin allon wuta ba)

94V0: kwali mai ɗaukar wuta (mutu naushi)

22F: gilashin fiberboard mai gefe guda (mutu naushi)

CEM-1: Gilashin fiberglass mai gefe guda (dole ne a yi hakowa na kwamfuta, ba a mutu ba)

CEM-3: katako na fiberglass mai gefe guda biyu (mafi ƙanƙancin abu na katako mai gefe guda biyu ban da katako mai gefe biyu, ana iya amfani da wannan kayan don bangarori biyu, wanda ya fi rahusa fiye da FR4)

FR4: allon fiberglass mai gefe biyu