Kwintsimi yokuvelisa i-elektroniki, ukuchaneka kwemveliso yeebhodi zeesekethe eziprintiweyo (PCBS) zihambelana ngokuthe ngqo nokusebenza kunye nomgangatho weemveliso ze-elektroniki. Njengoko izixhobo ezingundoqo kwinkqubo yokomba, uzinzo yokusebenza kunye nokuchaneka processing kwezixhobo PCB kusombiwa kubaluleke kakhulu. Phakathi kwazo, into ehlala ingahoywa kodwa ibaluleke kakhulu - isiseko segranite - kukugqiba ngokuzolileyo ukuba amandla esixhobo anokwandiswa.
Iinzuzo zeempawu zeziseko zegranite
Uzinzo olubalaseleyo, ukumelana nokuphazamiseka kokungcangcazela
Ngexesha lenkqubo yokomba ye-PCB, i-drill bit ijikeleza ngesantya esiphezulu ukusika ibhodi, ivelisa i-vibrations eqhubekayo kunye neyinkimbinkimbi. Isiseko segranite, esinesakhiwo esixineneyo nesifanayo esenziwe ziinkqubo zejoloji kumakhulu ezigidi zeminyaka, sinomsebenzi wenyikima owomeleleyo. I-granite ephezulu emele "i-Jinan Green" inzima kwi-texture kwaye iyakwazi ukufunxa ngokufanelekileyo kwaye isasaze amandla okunyakaza okwenziwa kukusebenza kwezixhobo, ukuqinisekisa ukuzinza kwezixhobo zokugaya ngexesha lokusebenza. Xa kuthelekiswa nezinye iziseko eziphathekayo, igranite inokunciphisa ngokuphawulekayo impembelelo yokungcangcazela kwisithuba sokuchaneka kwe-drill bit, ukwenza ukuchaneka kwesithuba semingxuma egrunjiweyo ibe phezulu kunye nokuphambuka okulawulwayo phakathi koluhlu oluncinci kakhulu, ukuhlangabezana neemfuno eziphezulu zokuchaneka kwemingxuma emincinci kunye needamitha ezincinci zomngxuma kwiibhodi zePCB ezinoxinano oluphezulu.
Ubunzima obuphezulu kunye nokuxhatshazwa kokugqoka kuqinisekisa ukuchaneka kwexesha elide
Imisebenzi yokugaya rhoqo ibeka umngeni omkhulu wokunganyangeki komgangatho wesiseko. Ubunzima be-Mohs begranite bunokufikelela kwisi-6 ukuya kwisi-7, bugqithe kakhulu kobo bentsimbi eqhelekileyo kunye neeplastiki ezininzi zobunjineli. Olu phawu lobulukhuni oluphezulu lwenza ukuba isiseko segranite sigcine ukuthambeka okuhle kunye nokugudiswa kumphezulu wayo nangona iphantsi kwamandla empembelelo kunye nokukhuhlana kwe-drill bit ixesha elide. Nangona emva kwenani elikhulu lemisebenzi yokubhoboza, iqondo lokugqoka alinanto, ngaloo ndlela liqinisekisa ukusebenza okuzinzile kwexesha elide lezixhobo zokugaya kunye nokuchaneka okuchanekileyo. Oku kubaluleke kakhulu kumashishini amakhulu okwenza iPCB. Inokunciphisa ixesha lokunciphisa izixhobo kunye nexesha lokugcinwa okubangelwa ukunxiba kwesiseko, ukuphucula ukusebenza kakuhle kwemveliso kunye nokunciphisa iindleko zokuvelisa ngokubanzi.
Ukwandiswa kwe-thermal ephantsi kunye nokunciphisa, ukulungelelaniswa nokutshintsha kweqondo lokushisa
Kwindibano yocweyo yokwenziwa kwe-PCB, ubushushu be-ambient buyaguquguquka ngenxa yezinto ezifana namaxesha onyaka kunye nokutshatyalaliswa kobushushu bezixhobo. Isiseko esenziwe ngezinto eziqhelekileyo sinokwandiswa kwe-thermal ebonakalayo kunye ne-contraction phenomena, eya kubangela utshintsho kwiindawo ezihambelanayo zezixhobo zezixhobo kwaye ngaloo ndlela zichaphazele ukuchaneka kokugaya. Igranite ine-coefficient ephantsi kakhulu yokwandiswa kwe-thermal. Umzekelo, i-coefficient yokwandiswa komgca we-granite eqhelekileyo imalunga ne-4.6×10⁻⁶/℃. Xa iqondo lokushisa litshintsha, ubukhulu besiseko se-granite buhlala buphantse buhlala buhlala buhlala buhlala buhlala buhlala, bubonelela ngesiseko esizinzileyo nesithembekileyo senkxaso yezixhobo zokugaya. Nokuba kusehlotyeni eshushu okanye kubusika obubandayo, izixhobo zinokugcina imeko yokomba echanekileyo, iqinisekisa ukuhambelana komgangatho wokomba kwiibhetshi ezahlukeneyo zeemveliso zePCB.
Lungelelanisa inkqubo yezixhobo zokomba zePCB
Ufakelo oluchanekileyo kunye nokubekwa kubeka isiseko sokuchaneka
Ngexesha lokucutshungulwa kwesiseko segranite, ngokusikwa kwedayimani ephucukileyo kunye neendlela zokusila, ukutyeba okuphezulu kakhulu kunye nokuchaneka komda kunokufezekiswa. Ngokomzekelo, ukunyamezela kwe-flatness yeziseko ze-granite ezichanekileyo phakathi koluhlu lwe-1m×1m kunokulawulwa ukuba kungabi ngaphezu kwe-4μm. Oku kwenza ukuba izixhobo zokugaya zifakwe ngokukhawuleza nangokuchanekileyo ngokusekelwe kwindiza echanekileyo kunye nesakhiwo sokumisa isiseko, kunye nokuphambuka okuncinci kofakelo lwecandelo ngalinye. Ufakelo oluchanekileyo kunye nokubeka indawo kubonelela ngesiqinisekiso sokuhamba ngokuchanekileyo kwe-drill bit ngexesha lokusebenza okulandelayo kwezixhobo, ukuphucula ukuchaneka kokugaya ukusuka kumthombo kunye nokunciphisa ngempumelelo iingxaki ezifana nokuphambuka kwesithuba somngxuma kunye nobubanzi obungahambelaniyo bomngxuma obangelwa ukufakwa kwezixhobo ezingafanelekanga.
Ukuphucula ukuqina kwesakhiwo kunye nokuphucula uzinzo lokusebenza
Xa izixhobo zokomba ze-PCB zisebenza, ukongeza kwi-vibration yayo, inokuchatshazelwa luthutho lwangaphandle, imigangatho yeworkshop engalinganiyo kunye nezinye izinto. Isiseko segranite sinokuxinwa okuphezulu kunye nokuqina okuqinileyo. Emva kokudityaniswa ngokusondeleyo kunye nesakhiwo esiphambili sesixhobo, sinokuphucula kakhulu ukuqina kwesakhiwo sezixhobo zonke. Xa izixhobo ziphantsi kwempembelelo yamandla angaphandle okanye ukungcangcazela, isiseko segranite sinokusasaza ngokulinganayo amandla empembelelo kunye nokuqina kwawo okuqinileyo, ukuthintela amacandelo aphambili ezixhobo ekugxothweni okanye ukuguqulwa ngenxa yokungalingani kwamandla, kunye nokuqinisekisa ukusebenza okuzinzileyo kwezixhobo phantsi kweemeko zokusebenza ezinzima. Umbuso osebenza ngokuzinzile unceda ukwandisa ubomi benkonzo yezixhobo kwaye unikeze indawo yokusebenza ezinzileyo neyithembekileyo yokugaya umgangatho ophezulu ngexesha elifanayo.
Eyona mpembelelo yesicelo semveliso
Imveliso yePCB yeemveliso zabathengi be-elektroniki
Ekwenziweni kwePCBS yeemveliso zombane zabathengi ezifana neefowuni ezihlakaniphileyo kunye neekhompyuter zethebhulethi, imfuno yokuchaneka kokomba iphezulu kakhulu. Emva kokuba ishishini elenza izinto zombane elaziwayo lazisa izixhobo zokomba zePCB ezineziseko zegranite, izinga lemveliso lenyuke lisuka kwi-80% laya kutsho ngaphezulu kwama-90%. Iingxaki ezifana noxhumo olubi lomgca kunye nesiphaluka esifutshane esibangelwa ukuchaneka okunganeleyo kokugaya kuye kwancitshiswa kakhulu. Okwangoku, ngenxa yesiseko segranite esinciphisa ukuphindaphinda kokugcinwa kwezixhobo, umthamo wenyanga wemveliso weli shishini unyuke nge-20%, ukwehlisa ngokufanelekileyo iindleko zemveliso kwimveliso nganye yeyunithi kwaye uphumelele ixabiso kunye nomgangatho woncedo kukhuphiswano oluqatha lwemarike.
Ukwenziwa kwebhodi yolawulo lweshishini PCBS
Indawo yokusebenza yeebhodi zolawulo lwamashishini inzima, kwaye iimfuno zokuthembeka kwiPCBS zingqongqo. Inkampani eyincutshe ekuveliseni iibhodi zolawulo lwemizi-mveliso ibone ukunyuka okumandla kwizinga lokuphumelela kwiibhodi zayo zePCB kuvavanyo oluqatha lokusingqongileyo olufana nobushushu obuphezulu kunye nokufuma okuphezulu emva kokwamkela izixhobo zokomba ezineziseko zegranite. Uzinzo oluphuculweyo lokusebenza kwezixhobo lwenza ukuba umgangatho wokugaya uthembeke ngakumbi, ukubonelela ngesiqinisekiso esiqinileyo sokusebenza kwexesha elide elizinzileyo lebhodi yokulawula ishishini. Ngeemveliso ezikumgangatho ophezulu, ishishini livule ngempumelelo iimarike zabathengi bemizi-mveliso ephezulu, kwaye isikali salo soshishino siye sakhula ngokuqhubekayo.
Iziseko zeGranite, ezinozinzo olubalaseleyo, ubulukhuni obuphezulu kunye nokunganyangeki, kunye nokwandiswa kwe-thermal kunye nokucutha okuphantsi, zidlala indima engenakuthathelwa indawo ekwandiseni amandla ezixhobo zokomba zePCB. Ukusuka kufakelo oluchanekileyo kunye nokubekwa kwindawo ekwandiseni ubulukhuni besakhiwo sesixhobo, kunye nokusebenza kwayo okugqwesileyo kwiimeko ezahlukeneyo zemveliso, zonke zibonise ngokupheleleyo ixabiso layo elibalulekileyo ekuphuculeni ukuchaneka kokomba kunye nokusebenza kakuhle kwe-PCBS. Kwindlela yokulandela ukuchaneka okuphezulu kunye nokusebenza kakuhle kwi-PCB yokwenziwa, isiseko segranite ngokungathandabuzekiyo singundoqo ekuvuleni amandla aphezulu ezixhobo zokomba ze-PCB, kwaye ifanele ukuhoywa okuphezulu kunye nokusetyenziswa okubanzi kwenani elikhulu lamashishini okwenza i-elektroniki.
Ixesha lokuposa: Jun-10-2025