Best Technology yenye abavelisi pcb ilungileyo eprintiweyo ababoneleli ngebhodi yesekethe e China
Ulwimi
Best Technology yenye abavelisi pcb ilungileyo eprintiweyo ababoneleli ngebhodi yesekethe e China
Xa kufikwa kwimingxuma kwiiPCBs (iiBhodi zeSekethe eziShicileleyo), umntu angasoloko enomdla malunga nemingxunya emibini ekhethekileyo: Umngxuma we-Counterbore kunye ne-Countersunk hole. Kulula ukubhideka kwaye kulula ukungaqondi ukuba ungumntu we-PCB. Namhlanje, siya kwazisa umahluko phakathi kwe-counterbore kunye ne-countersunk ngeenkcukacha, masiqhubeke sifunda!
Yintoni i-Counterbore Hole?
Umngxuma we-counterbore yi-cylindrical recess kwi-PCB enobubanzi obukhulu kumphezulu ongaphezulu kunye nedayamitha encinci ezantsi. Injongo yomngxuma we-counterbore kukudala indawo yentloko ejijwayo okanye i-flange ye-bolt, ukuyivumela ukuba ihlale igungxulwe okanye ngaphantsi komphezulu we-PCB. I-diameter enkulu phezulu ithatha intloko okanye i-flange, ngelixa i-diameter encinci iqinisekisa ukuba i-shaft ye-fastener okanye umzimba uhambelana kakuhle.
Yintoni i-Countersunk Hole?
Kwelinye icala, umngxuma owenziweyo yi-conical recess kwi-PCB evumela ukuba intloko yesikrufu okanye ibholithi ihlale igungxulwe nomphezulu wePCB. Ubume bomngxuma we-countersunk luhambelana neprofayili yentloko ye-fastener, idala indawo engenamthungo kunye nenqanaba xa i-screw okanye i-bolt ifakwe ngokupheleleyo. Imingxunya ye-countersunk inecala elineengile, rhoqo ngama-82 okanye ama-90 degrees, emisela imilo kunye nobukhulu bentloko yesiqhoboshi esizakungena kwindawo yokuphumla.
I-Counterbore VS Countersunk: Ijometri
Ngelixa zombini i-counterbore kunye ne-countersunk imingxuma isebenzela injongo yokuhlalisa i-fasteners, umahluko wabo ophambili ulele kwijometri yabo kunye neentlobo ze-fasteners ezihlala kuzo.
Imingxunya ye-Counterbore ine-cylindrical recess ene-diameter ezimbini ezahlukeneyo, ngelixa imingxuma edibeneyo ine-conical recess kunye ne-diameter enye.
Imingxunya ye-counterbore idala indawo enyathelweyo okanye ephakanyisiweyo kumphezulu we-PCB, ngelixa imingxuma ekwaziweyo ikhokelela kwindawo egungxulwayo okanye ehoxisiweyo.
I-Counterbore VS Countersunk: Iintlobo zeFastener
Imingxunya ye-Counterbore isetyenziselwa ikakhulu iziqhoboshi ezinentloko okanye iflange, njengeebholithi okanye izikrufu ezifuna umgangatho oqinileyo wokunyuka.
Imingxunya ye-countersunk yenzelwe izibophelelo ezinentloko yeconical, ezifana nezikrufu ze-flathead okanye iibholiti ze-countersunk, ukufikelela kwindawo egungxulwayo.
I-Counterbore VS Countersunk: Ii-engile zokubhola
Ubukhulu obuhlukeneyo kunye nee-angles zokugaya ii-drill bits zinikezelwa ukuvelisa i-countersinks, kuxhomekeke kusetyenziso olujoliswe kuyo. Ezi engile zingabandakanya 120 °, 110 °, 100 °, 90 °, 82 °, kunye 60 °. Nangona kunjalo, ii-engile zokugrumba ezidla ngokusetyenziswa rhoqo xa kuntywilwa ngama-82° kunye nama-90°. Ukufumana iziphumo ezilungileyo, kubalulekile ukulungelelanisa i-angle ye-countersink kunye ne-angle ye-tapered kwi-underside yentloko ye-fastener. Kwelinye icala, imingxunya ye-counterbore inamacala ahambelanayo kwaye ayifuni ukucolwa.
I-Counterbore VS Countersunk: Izicelo
Ukukhetha phakathi komngxunya we-counterbore kunye ne-countersunk kuxhomekeke kwiimfuno ezithile zoyilo lwePCB kunye namacandelo asetyenziswayo.
Imingxunya ye-Counterbore ifumana izicelo kwiimeko apho ukuqiniswa okukhuselekileyo kunye nokugungxulwa kwamacandelo okanye iipleyiti zokukhwela ziyimfuneko. Zidla ngokusetyenziswa ukuqhoboshela iziqhagamshelo, izibiyeli, okanye iiPCB kwindawo ebiyelweyo okanye itshisi.
Imingxunya ye-countersunk isoloko isetyenziswa xa ingqwalasela yobuhle ibalulekile, njengoko ibonelela ngomphezulu othambileyo kunye nomgangatho. Zihlala zisetyenziselwa ukunyusela iiPCB kumphezulu apho kufuneka ugqibo olugungxulwayo, njengakwizinto zombane zabathengi okanye izixhobo zokuhombisa.
Imingxunya yokukhawulela kunye ne-countersunk yimpawu ezibalulekileyo kuyilo lwe-PCB, evumela ukuxhoma okusebenzayo kunye nokuqina okukhuselekileyo. Ukuqonda umahluko phakathi kwezi ntlobo zimbini zemingxuma ivumela abayili ukuba bakhethe ukhetho olufanelekileyo olusekelwe kwiimfuno ezithile zezicelo zabo zePCB. Nokuba kukuqinisekisa uqhagamshelo olukhuselekileyo okanye ukufikelela kwimbonakalo ekholisayo ukugqibezela, ukhetho phakathi komngxunya we-counterbore kunye ne-countersunk lemingxuma idlala indima ebalulekileyo ekusebenzeni ngokubanzi kunye nobuhle bendibano yePCB.
