PCB igomba kwihanganira umuriro kandi ntishobora gutwika ubushyuhe runaka, gusa kugirango yoroshye.Ubushyuhe muri iki gihe bwitwa ubushyuhe bwikirahure (TG point), bujyanye nubunini buhamye bwa PCB.

Ni izihe TG PCB ndende ninyungu zo gukoresha TG PCB ndende?

Iyo ubushyuhe bwa TG PCB buzamutse bugera kuri runaka ni, substrate izahinduka kuva "ibirahuri" ihinduka "reberi", noneho ubushyuhe muriki gihe bwitwa ubushyuhe bwa vitrification (TG) bwubuyobozi.Muyandi magambo, TG nubushyuhe bwo hejuru aho substrate ikomeza gukomera.

Ni ubuhe bwoko bw'ubuyobozi bwa PCB bufite?

Urwego kuva hasi kugeza hejuru rwerekana nkuko bikurikira:

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

Ibisobanuro ni ibi bikurikira:

94HB: ikarito isanzwe, ntabwo yaka umuriro (ibikoresho byo mu rwego rwo hasi, gupfa gukubita, ntibishobora gukorwa mububaho)

94V0: ikarito ya flame retardant (gupfa gukubita)

22F: fibre yububiko bumwe (bipfa gukubita)

CEM-1: ikibaho kimwe cya fiberglass ikibaho (gucukura mudasobwa bigomba gukorwa, ntibipfe gukubita)

C.

FR4: ikibaho cyibice bibiri bya fiberglass