Ukumelana nokulandelela kwe-laminate ye-copper clad kuvame ukuvezwa yi-comparative tracking index (CTI).Phakathi kwezakhiwo eziningi ze-copper clad laminates (i-copper clad laminates okwesikhashana), ukumelana nokulandelela, njengenkomba ebalulekile yokuphepha nokuthembeka, kuye kwanda kakhulu Ibhodi lesifunda le-PCB abaklami nabakhiqizi bebhodi lesifunda.

Inani le-CTI lihlolwa ngokuhambisana nendlela evamile ye-IEC-112 "Indlela Yokuhlola Yenkomba Yokuqhathanisa Yokulandelela Yama-Substrates, Amabhodi Aphrintiwe kanye Nemihlangano Yebhodi Ephrintiwe", okusho ukuthi ingaphezulu le-substrate lingakwazi ukumelana namaconsi angu-50 e-0.1% ammonium chloride. Inani eliphakeme kakhulu likagesi (V) lapho isixazululo esinamanzi singenzi umkhondo wokuvuza kukagesi.Ngokwezinga le-CTI lezinto zokuvikela i-insulating, i-UL ne-IEC ihlukanisa abe amabanga ayisi-6 namabanga ama-4 ngokulandelana.

Bheka Ithebula 1. I-CTI≥600 iyibanga eliphezulu kakhulu.Ama-laminates e-Copper clad anamanani aphansi e-CTI athambekele ekulandeleni ukuvuza lapho esetshenziswa isikhathi eside ezindaweni ezinokhahlo njengokucindezela okuphezulu, izinga lokushisa eliphezulu, umswakama, nokungcola.

Ngokuvamile, i-CTI yama-laminates agqoke ngethusi asekelwe ephepheni ajwayelekile (i-XPC, i-FR-1, njll.) ingu-≤150, kanye ne-CTI yama-laminates agqoke ithusi asekelwe kwinhlanganisela evamile (CEM-1, CEM-3) kanye ne-fiber yengilazi evamile. indwangu-based copper clad laminates (FR-4) Isukela ku-175 kuya ku-225, engakwazi ukuhlangabezana nezidingo eziphakeme zokuphepha zemikhiqizo kagesi kanye nekagesi.

Esilinganisweni se-IEC-950, ubudlelwano phakathi kwe-CTI ye-copper clad laminate kanye ne-voltage yokusebenza ibhodi lesifunda eliphrintiwe kanye nesikhala sezintambo esincane (Ibanga eliphansi le-Creepage) nalo liyabalulwa.I-CTI ephezulu ye-copper clad laminate ayifaneleki kuphela ukungcola okuphezulu, Ibuye ifaneleke kakhulu ekukhiqizeni amabhodi wesifunda aphrintiwe aphezulu wezinhlelo zokusebenza ze-high-voltage.Uma kuqhathaniswa nama-laminates agqoke ithusi ajwayelekile anokumelana nokulandela ukuvuza okuphezulu, ukuhlukaniswa komugqa wamabhodi wesifunda aphrintiwe enziwe nangaphambili kungavunyelwa ukuba kube kuncane.

Ukulandelela: Inqubo yokwenza kancane kancane indlela ye-conductive ebusweni bezinto eziqinile zokuvikela ngaphansi kwesenzo esihlanganisiwe sensimu kagesi kanye ne-electrolyte.

I-Comparative Tracking Index (CTI): Inani eliphakeme kakhulu le-voltage lapho ingaphezulu lempahla lingamelana namaconsi angama-50 e-electrolyte (0.1% ammonium chloride aqueous solution) ngaphandle kokwenza umkhondo wokuvuza, ku-V.

I-Proof Tracking Index (PTI): Inani le-voltage elingabekezeleleki lapho ingaphezulu lezinto ezibonakalayo lingamelana namaconsi angama-50 e-electrolyte ngaphandle kokwenza umkhondo wokuvuza, ovezwa ngo-V.

Ukuqhathaniswa kokuhlolwa kwe-CTI kwe-copper clad laminate

Ukwandisa i-CTI yezinto zeshidi ngokuyinhloko kuqala nge-resin, futhi kunciphisa izakhi zofuzo okulula ukukha carbonize futhi kulula ukubola ngokushisa esakhiweni se-resin yamangqamuzana.