Kana zvasvika kumakomba muPCBs (Akadhindwa Circuit Boards), mumwe munhu angagara achida kuziva nezvemakomba maviri akakosha: Counterbore hole uye Countersunk hole. Izvo zviri nyore kuvhiringika uye zviri nyore kusanzwisisa kana iwe uri mumiriri wePCB. Nhasi, tichasuma mutsauko pakati pe counterbore uye countersunk kuti uwane ruzivo, ngatirambei tichiverenga!
Chii chinonzi Counterbore Hole?
Gomba re counterbore icylindrical recess paPCB ine dhayamita yakakura kumusoro uye dhayamita diki pasi. Chinangwa chegomba re counterbore kugadzira nzvimbo yescrew musoro kana bhaudhi flange, ichiibvumira kuti igare yakapfava kana kuti pazasi pePCB. Iyo dhayamita yakakura kumusoro inogadzika musoro kana flange, nepo dhayamita diki ichivimbisa kuti shaft yefastener kana muviri unokwana zvakanaka.
Chii chinonzi Countersunk Hole?
Kune rimwe divi, gomba rakanyura igomba reconical paPCB rinobvumira musoro wescrew kana bhaudhi kuti ugare wakapfava nePCB pamusoro. Chimiro chegomba rakanyura rinoenderana nembiri yemusoro wechisungiso, zvichigadzira nzvimbo isina musono uye ine mwero kana sikuruu kana bhaudhi yanyatsopinzwa. Maburi eku Countersunk anowanzo ane mativi ane angled, kazhinji 82 kana 90 madhigirii, ayo anotaridza chimiro uye saizi yemusoro wefastener unokwana mukati mekuzorora.
Counterbore VS Countersunk: Geometry
Nepo ese maburi e counterbore uye countersunk achishandira chinangwa chekugadzika zvisungo, mutsauko wavo mukuru uri mujometry yavo uye marudzi ezvisungo zvavanogara.
Maburi eku Counterbore ane cylindrical recess ane madhayamita maviri akasiyana, nepo maburi akanyura ane conical recess ine dhayamita imwe.
Makomba e Counterbore anogadzira nzvimbo yakatsikwa kana yakasimudzwa paPCB, nepo makomba akanyura achikonzera nzvimbo yakanyungudutswa kana kudzika.
Counterbore VS Countersunk: Fastener Types
Maburi eku Counterbore anonyanya kushandiswa pazvisungirira zvine musoro kana flange, senge mabhaudhi kana masiruu anoda nzvimbo yakasimba yekukwira.
Countersunk maburi akagadzirirwa zvitsigiro zvine musoro wakakoniwa, senge flathead screws kana countersunk bolts, kuti uwane nzvimbo inoyerera.
Counterbore VS Countersunk: Drill angles
Saizi dzakasiyana uye makona ekuchera ezviboorero zvimedu zvinopihwa pakugadzira countersinks, zvichienderana nezvinodiwa kushandiswa. Makona aya anogona kusanganisira 120°, 110°, 100°, 90°, 82°, uye 60°. Zvisineyi, makona ekucheresa anowanzo shandiswa pakunyura i82° uye 90°. Kuti zvive nemigumisiro yakanaka, zvakakosha kurongedza kona ye countersink nekona yakaderedzwa pazasi pemusoro wefastener. Kune rimwe divi, maburi e counterbore anoratidza mativi akaenzana uye haafanire kutapudza.
Counterbore VS Countersunk: Zvikumbiro
Sarudzo pakati pe counterbore uye countersunk makomba zvinoenderana nezvinodiwa chaizvo zvePCB dhizaini uye zvikamu zviri kushandiswa.
Counterbore maburi anowana maapplication mumamiriro ezvinhu apo kusungirirwa kwakachengeteka uye kukwenenzverwa kwezvikamu kana mahwendefa ekukwira anodiwa. Iwo anowanzo shandiswa kusungira zvibatanidza, mabhuraketi, kana maPCB kune yakavharirwa kana chassis.
Maburi eku Countersunk anowanzo shandiswa kana kutarisisa kwekunaka kwakakosha, sezvo vachipa nzvimbo yakapfava uye yakadzikama. Iwo anowanzo shandiswa kukwirisa maPCB kunzvimbo uko kunoperera kupera kunodiwa, senge mumagetsi evatengi kana ekushongedza maapplication.
Counterbore uye countersunk maburi zvinhu zvakakosha muPCB dhizaini, inogonesa kukwirisa kwechikamu uye kusungirira kwakachengeteka. Kunzwisisa mutsauko pakati pemhando mbiri idzi dzemakomba inobvumira vagadziri kusarudza yakakodzera sarudzo zvichienderana nezvinodiwa chaizvo zvePCB yavo yekushandisa. Kungave kuve nechokwadi chekubatana kwakachengeteka kana kuwana kupedzisa kunofadza, sarudzo pakati pemakomba e counterbore uye countersunk makomba inoita basa rakakosha mukushanda kwese uye aesthetics yePCB gungano.