Mubyukuri, PCB kurwana bivuga no kugunama k'umuzunguruko, bivuga ikibaho cyambere cyumuzingi.Iyo ushyizwe kuri desktop, impera zombi cyangwa hagati yubuyobozi bigaragara hejuru gato.Iyi phenomenon izwi nka PCB kurwanira mu nganda.

Inzira yo kubara urupapuro rwintambara yumuzunguruko nugushira ikibaho cyumuzingi hejuru kumeza hamwe nu mfuruka enye zumuzunguruko hasi no gupima uburebure bwikibaho hagati.Inzira niyi ikurikira:

Intambara = uburebure bwa arch / uburebure bwa PCB ndende * 100%.

Inganda zumuzunguruko zinganda zinganda: Ukurikije IPC - 6012 (1996 Edition) "Ibisobanuro byo Kumenyekanisha no Gukora Ibibaho Byacapwe Rigid", impapuro nini zo kugoreka no kugoreka byemewe gukora imbaho ​​zumuzunguruko ziri hagati ya 0,75% na 1.5%.Bitewe nubushobozi butandukanye bwibikorwa bya buri ruganda, hari nuburyo butandukanye mubisabwa kugenzura intambara ya PCB.Kubibaho 1.6 byimbaraga zisanzwe zifite impande ebyiri zumuzunguruko, benshi mubakora imbaho ​​zumuzunguruko bagenzura urupapuro rwintambara rwa PCB hagati ya 0.70-0.75%, SMT, BGA nyinshi, ibisabwa murwego rwa 0.5%, inganda zimwe zubuyobozi bwumuzunguruko zifite ubushobozi bukomeye zirashobora kuzamura urupapuro rwintambara rwa PCB kugeza 0.3%.

Nigute wakwirinda gutwarwa ninama yumuzunguruko mugihe cyo gukora?

.

(2) Ibice byinshi bya PCB yibanze hamwe nimpapuro zikiza bigomba gukoresha ibicuruzwa bimwe bitanga isoko;

.

Nigute ushobora kwirinda ikibaho cyumuzunguruko?

1.Ibishushanyo mbonera: interlayer igice cyo gukiza urupapuro rwateganijwe rugomba kuba rukwiye;Igice kinini cyibanze hamwe nigice cyakize cyakorewe mubitanga bimwe;Igishushanyo mbonera cyindege yo hanze ya C / S irihafi bishoboka, kandi gride yigenga irashobora gukoreshwa.

2.Kuma isahani mbere yo gupfunyika: muri rusange dogere 150 amasaha 6-10, ukuyemo umwuka wamazi uri mu isahani, ongera utume resin ikira burundu, ikureho imihangayiko iri ku isahani;Urupapuro rwo gutekesha mbere yo gufungura, byombi imbere kandi bikenewe impande zombi!

3.Mbere ya laminates, hakwiye kwitonderwa icyerekezo cya warp na weft cyicyapa gikomeye: igipimo cyo kugabanuka kwintambara na weft ntabwo ari kimwe, kandi hagomba kwitabwaho gutandukanya icyerekezo cyintambara nicyuma mbere yo kumanika urupapuro rukomeye;Isahani yibanze nayo igomba kwitondera icyerekezo cyintambara no kuboha;Icyerekezo rusange cyicyapa gikiza ni icyerekezo cya meridian;Icyerekezo kirekire cya plaque yambaye umuringa ni meridional;Ibice 10 bya 4OZ imbaraga zumuringa wuzuye

4.ubunini bwa lamination kugirango ukureho stress nyuma yo gukonjesha, gutema inkombe mbisi;

5.Gufata isahani mbere yo gucukura: dogere 150 kumasaha 4;

6.Ni byiza kutanyura mu gusya gusya, gusukura imiti birasabwa;Ibikoresho bidasanzwe bikoreshwa mukurinda isahani kunama no kugundwa

7.Nyuma yo gutera amabati kuri marble iringaniye cyangwa isahani yicyuma gukonjesha bisanzwe mubushyuhe bwicyumba cyangwa uburiri bureremba hejuru yo gukonjesha nyuma yo gukora isuku;