Best Technology ndi mmodzi wa opanga bwino pcb ndi kusindikizidwa dera bolodi ogulitsa China
Chilankhulo
Best Technology ndi mmodzi wa opanga bwino pcb ndi kusindikizidwa dera bolodi ogulitsa China
Zikafika pamabowo a PCB (Mabowo Osindikizidwa Ozungulira), wina atha kukhala ndi chidwi nthawi zonse za mabowo awiri apadera: Counterbore hole ndi Countersunk hole. Iwo ndi osavuta kusokonezeka ndi zosavuta kusamvetsetsa ngati ndinu wamba wa PCB. Lero, tikuwonetsa kusiyana pakati pa counterbore ndi countersunk kuti timve zambiri, tiyeni tipitirize kuwerenga!
Kodi Counterbore Hole ndi chiyani?
Bowo la counterbore ndi cylindrical recess pa PCB yomwe ili ndi mainchesi okulirapo pamwamba komanso m'mimba mwake yaying'ono pansi. Cholinga cha bowo la counterbore ndikupanga malo a screw mutu kapena flange ya bawuti, kulola kuti ikhale pansi kapena pansi pa PCB. Kukula kokulirapo kumtunda kumatengera mutu kapena flange, pomwe mainchesi ang'onoang'ono amaonetsetsa kuti tsinde kapena thupi la chomangira likwanira bwino.
Kodi Countersunk Hole ndi chiyani?
Kumbali ina, dzenje loyikirapo ndi chopumira pa PCB chomwe chimalola kuti mutu wa screw kapena bawuti ukhale pansi ndi PCB pamwamba. Maonekedwe a dzenje losunthika amafanana ndi mbiri ya mutu wa chomangira, kupanga malo osasunthika komanso osasunthika pomwe wononga kapena bawuti yayikidwa kwathunthu. Mabowo a Countersunk nthawi zambiri amakhala ndi mbali yopindika, nthawi zambiri madigiri 82 kapena 90, omwe amasankha mawonekedwe ndi kukula kwa mutu wolumikizira womwe ungagwirizane ndi popuma.
Counterbore VS Countersunk: Geometry
Ngakhale mabowo onse a counterbore ndi countersunk amagwira ntchito yopangira zomangira, kusiyana kwawo kwakukulu kuli mu geometry yawo ndi mitundu ya zomangira zomwe amakhala nazo.
Mabowo a Counterbore amakhala ndi cylindrical recess yokhala ndi ma diameter awiri osiyana, pomwe mabowo osunthika amakhala ndi chopumira chokhala ndi mainchesi amodzi.
Mabowo a counterbore amapanga malo okwera kapena okwera pamwamba pa PCB, pomwe mabowo osunthika amapangitsa kuti pakhale malo osungunuka kapena okhazikika.
Counterbore VS Countersunk: Mitundu ya Fastener
Mabowo a Counterbore amagwiritsidwa ntchito ngati zomangira zokhala ndi mutu kapena flange, monga zomangira kapena zomangira zomwe zimafunikira malo okhazikika.
Mabowo a Countersunk amapangidwira zomangira zokhala ndi mutu wopindika, monga zomangira za flathead kapena ma bolts owunikiridwa, kuti zitheke.
Counterbore VS Countersunk: Drill angles
Kukula kosiyanasiyana ndi ma angles obowola azitsulo zobowola amaperekedwa kuti apange ma countersinks, kutengera ntchito yomwe akufuna. Ma angleswa amatha kukhala 120°, 110°, 100°, 90°, 82°, ndi 60°. Komabe, ma angles omwe amagwiritsidwa ntchito kwambiri pobowola powerengera ndi 82° ndi 90°. Kuti mupeze zotsatira zabwino, m'pofunika kugwirizanitsa ngodya ya countersink ndi ngodya yokhotakhota pansi pa mutu wa fastener. Kumbali ina, mabowo a counterbore amakhala ndi mbali zofananira ndipo safunikira kudulidwa.
Counterbore VS Countersunk: Mapulogalamu
Kusankha pakati pa mabowo a counterbore ndi countersunk zimadalira zofunikira za mapangidwe a PCB ndi zigawo zomwe zikugwiritsidwa ntchito.
Mabowo a Counterbore amapeza ntchito nthawi zomwe kumangirira kotetezedwa ndi kusungunula kwa zigawo kapena mbale zoyikira ndikofunikira. Nthawi zambiri amagwiritsidwa ntchito kumangiriza zolumikizira, mabulaketi, kapena ma PCB kumalo otchingidwa kapena chassis.
Mabowo a Countersunk nthawi zambiri amagwiritsidwa ntchito ngati zokongoletsa ndizofunikira, chifukwa zimapereka mawonekedwe osalala komanso osalala. Amagwiritsidwa ntchito nthawi zambiri kuyika ma PCB pamalo omwe amafunikira kumaliza, monga pamagetsi ogula kapena zinthu zokongoletsera.
Mabowo a Counterbore ndi countersunk ndi zinthu zofunika kwambiri pakupanga kwa PCB, zomwe zimathandiza kuti zikhazikike bwino ndikumanga motetezeka. Kumvetsetsa kusiyana pakati pa mitundu iwiri ya mabowo amalola okonza kusankha njira yoyenera potengera zofunika zenizeni za ntchito zawo PCB. Kaya ndikuwonetsetsa kuti pali kulumikizana kotetezeka kapena kukwaniritsa zowoneka bwino, kusankha pakati pa mabowo owunikidwa ndi owukira kumathandizira kwambiri magwiridwe antchito ndi kukongola kwa gulu la PCB.
