Imbobo oyindilinga okuyinto usike ukuvumela flat ikhanda isikulufa okumele asetshenziswe ibizwa ngokuthi imbobo countersink. Ingase futhi kungenziwa ebizwa ngokuthi umgodi oyindilinga ukuthi uthathe i-laminate PCB, noma umgodi wadala ngokusebenzisa sokuprakthiza. Inhloso eyinhloko ukuvumela inhloko nesikulufu countersunk, uma ifakiwe futhi screwed phansi emgodini, ukuze ahlale ezishaywayo ne kobuso laminate. Intaba-ezimise imbobo, okuyinto uthathe laminate PCB, kuyinto countersink. Kuvamise esetshenziswa ukuba ivumele ikhanda tapered ka nesikulufu ukuba ahlale ezishaywayo ne phezulu noma phansi laminate.

It is ikakhulukazi esetshenziswa, ukuze flat ikhanda isikulufa bangahlala ezishaywayo ne ubuso ukuze ubuke ehlanzekile ukufakwa. Ukuqinisekisa design efanele yokukhiqiza, abakhiqizi abaningi zidinga imininingwane ubukhulu imbobo. Badinga ukwazi uma umgodi kuhlinzwa noma cha. Ukwazi uma hole is ipuleti noma cha kubalulekile ngoba kwezinye izimo kungase imbobo unplated lusekelwe uhlaka, okungase kubangele inkinga ukuthi kuzodinga Plating ukulungisa. Countersinks ngokuvamile ube ne degree 82 noma engela 90 degree; Nokho, ezinye engeli zingenzeka ukuthi ikhasimende kwakuzodingeka ukuhlinzeka kuya fabricator PCB.

Ukuze imishini olunembile izimbobo countersink, ulwazi olulandelayo luyadingeka:

▪ Iluphi uhlangothi ibhodi emgodini countersink kufanele yamba, phezulu noma phansi?

▪ Ingabe echibini nesicu ukuba ngokusebenzisa kuhlinzwa noma non-kuhlinzwa?

▪ Taper engela noma engela countersink

▪ Countersink ubukhulu

▪ I ububanzi ophelele owenziwa nguJesu oluthi emgodini

▪ Ukujula we countersink kumele yamba

Ngezansi umfanekiso enikeza isibonelo umgodi countersink:

A: Countersink engela, D: Countersink Ububanzi, d: Hole ubukhulu, H: Hole ukujula