PCB daloolka meelayntu waa isku xidh aad muhiim u ah geedi socodka naqshadaynta PCB si loo go’aamiyo goobta gaarka ah ee PCB daloolka. Doorka daloolka meelaynta waxaa lagu daabacay halbeegga wax -soo -saarka ee guddiga wareegga. Hababka meelaynta daloolka PCB way kala duwan yihiin, badiyaa marka loo eego shuruudaha saxnaanta meelaynta kala duwan. Meeleynta meeleynta boorarka wareegga ee daabacan waa inay matalaan calaamado garaafyo gaar ah. Marka shuruudduhu aysan sarrayn, daloolka shirarka ee weyn ee ku yaal guddiga wareegga daabacan ayaa loo isticmaali karaa halkii.

Si loo fududeeyo qoditaanka guddiga wareegga daabacan iyo qoditaanka guddiga go’an go’an, iyo sidoo kale tijaabinta khadka tooska ah ee internetka, soo -saareyaal badan oo guddiga wareegga ah ayaa rajaynaya dadka isticmaala inay naqshadeeyaan saddex godad oo aan bir ahayn oo ku yaal PCB, godadka meelaynta waxaa badanaa loogu talagalay godad aan bir ahayn, dhexroorka qodista ee mm ama mm. Smmo haddii looxdu adag tahay, ugu yaraan laba godad oo meelaynta waa in la geliyaa, oo la dhigaa dadab. Haddii aad samaysato loox jigsaw ah, waxaad sidoo kale u malayn kartaa in looxaanta jigsaw -ku yahay PCB, looxa jigsaw -ga oo dhan ilaa inta ay jiraan saddex godad oo meelaynta. Haddii isticmaale uusan meel dhigin, soo -saaraha guddiga wareegga ayaa si otomaatig ah ugu dari doona iyada oo ku saleysan in uusan saamaynayn khadka, ama u adeegsan doono daloolada aan birta ahayn ee sabuuradda sidii godad meelaynta.

Goobta meesha daloolka goobta

Daloolka Aaladda Aaladaha iyo isku xirayaasha aaladaha isku-xirayaasha ayaa inta badan ka kooban wax-ku-xirnaan. Dhexroorka daloolka ee aaladda galinta wuxuu ka weyn yahay dhexroorka biinka ee 8 ~ 20mil, iyo gelinta daasaddu way wanaagsan tahay inta alxanka. Waa in la ogaadaa in uu jiro qalad xagga daloolka warshadda guddiga wareegga, khaladka qiyaasta ahna waa ± 0.05mm. 0.05mm waa nooc ka mid ah daloolin bareeg kasta, iyo 0.lmm waa nooc ka mid ah daloolin kasta haddii dhexroorku ka sarreeyo 3.20mm. Sidaa darteed, marka la dejinayo daah -furka aaladda, cutubka waa in loo rogaa milimitir, iyo daah -furka waa in loo qaabeeyaa sida isku -darka tirada badan ee 0.05. Warshadda saxanku waxay dejisaa cabbirka aaladda qodista marka loo eego xogta qodista ee uu bixiyay isticmaalaha. Cabbirka aaladda qodista badiyaa waa 0.1 ~ 0.15 ka weyn yahay godka sameynta ee uu u baahan yahay adeegsaduhu. Dhexroorka naqshadda mmo waa inay ahaataa mid weyn halkii ay ka yarayn lahayd, iyo shuruudda dulqaadku waa inay ahaataa mid weyn halkii ay ka yarayn lahayd. Haddii ay tahay aalad goos goos ah, daloolka waa in aan la kordhin, marka loo eego naqshadda lagu taliyay xogta, iyo tilmaamaha lagu sharraxayo waxa weeye aaladda guntinta, si soo saaraha guddiga wareegga uu isku dayo inuu xakameeyo khaladka geedi socodka samaynta guddiga, si looga fogaado dhibaato aan loo baahnayn.

Noocyada qodista waxay u qaybsan yihiin godad la cabbiray iyo godad aan la qiyaasi karin. Waxaa jira naxaas soo daatay derbiga daloolka birta ah, kaas oo ka ciyaari kara kaalin tabin waxaana matalaya PTH. Ma jiro naxaas ku jirta gidaarka daloolka ee daloolka aan birta ahayn, sidaa darteed ma samayn karto koronto. Waxaa tilmaamaya NPTH. Farqiga u dhexeeya dhexroorka dibedda iyo dhexroorka gudaha ee dhexroorka dahaarka leh ee birta ah waa inuu ka weyn yahay 20mil, haddii kale giraanta alxanka ee suufku aad buu u yar yahay si loo farsameeyo oo uma fiicna alxanka. Haddii xaaladuhu oggolaadaan, daloolka waxaa loo qaabayn karaa inuu noqdo raadi suufka. Dhexroorka daloolka ugu badan ee daloolka la cabbiray waa 6.35mm, iyo dhexroorka daloolka ugu badan ee daloolka aan birta ahayn waa 6.5mm. Daloolka birta ah waa in aan loogu talagalin xariiqda dusha. Afka daloolku waa inuu ka fogaadaa 1mm xariiqda dusha. Daloolka Cobalt godka culus wuxuu si fudud u dhaawici karaa layliga, marka waa in laga fogaadaa intii suurtogal ah. Iyada oo aan alxanka lahayn oo aan lahayn dalool aan bir ahayn, daloolka waxaa loo qaabayn karaa dabeecadda godka saxanka alxanka ee aan birta ahayn uma baahna in la naqshadeeyo, xariijin ama bireed naxaas ah ugu yaraan 1 mmo qodista godka masaafada geeska iyadoo loo eegayo qaabka waxaa loo qaybin karaa god wareegsan iyo daloolka leydiinka, qoditaanka caadiga ah ee daloolka wareegsan, daloolka leydi ayaa la qaniinsan yahay iyadoo la raacayo habraacyada ay qoreen marar badan oo qodista, sidaas darteed naqshadda daloolka leydiis koritaanka ugu wanaagsan waa laba jibbaar ballaaran, Oo ballaadhkeeduna kama yaraan 0.8mm, intii suurtogal ah in la qorsheeyo godadka leydi.

Shuruudaha godka meelaynta PCB:

Horumarinta warshadaha naqshadeynta PCB waxay noqotay mid qaangaar ah, sidaa darteed shuruudaha godadka meelaynta PCB sidoo kale waa kuwo aad u qumman. Godadka meelaynta waa inay buuxiyaan shuruudaha soo socda.

1. Ku rakib ugu yaraan laba dalool oo meeleynta xaggeeda sare ee guddiga.

2. Daloolka caadiga ah ee daloolka meelaynta waa 3.2mm _+0.05mm.

3, alaabooyinka kala duwan ee dahaarka meheradda ayaa sidoo kale adeegsan kara furitaanka doorbidka soo socda: 2.8mm ± 0.05mm, 3.0mm ± 0.5mm, 3.5mm ± 0.5mm iyo 4.5mm ± 05mm. Looxyada kala duwan ee isku badeecada ah (sida guddiga DT iyo guddiga PP ee ZXJlO), haddii PCB -ga uu leeyahay cabbir isku mid ah, godadka meelayntu waa inay isku mid ahaadaan.

4. Daloolka meelayntu waa dalool khafiif ah, yacnii, aan birta ahayn ee daloosha (marka laga reebo guddiga rf).

5. Haddii daloolada dhajinta ee hadda jira (marka laga reebo godadka dhejinta xidhitaanka) ay buuxiyaan shuruudaha kor ku xusan, looma baahna in la dejiyo dalool meelayn kale.

Qaar ka mid ah tilmaamaha caadiga ah iyo shuruudaha saxda ah ee meelaynta godadka:

1. Baaxadda qaladka dhexroorka godka meelaynta ayaa guud ahaan ku jirta 0.01mm. Haddii qaladku ku weyn yahay qolka wax -soo -saarka PCB, waxay sababi doontaa xiriir xun ee baaritaanka iyo isku -dheelitirka aan sax ahayn ee isku -xiraha is -dhexgalka si loo geliyo farsamada otomaatiga ah.

2, dhexroorka shuruudaha godka meelaynta: isku day inaad ka hoosayso 3mm, si tiirka meelayntu aanu u xuub -siibin, aad u weyn oo aan ku habboonayn in lagu shaqeeyo.

3, meelaynta godka PCB masaafada shabakadda: in ka badan 1MM, si hawlgalka rakibidda uusan u fududayn wareegga gaaban, sidoo kale ma dhaawici doono waddada alaabta.

4, nooca daloolka meelaynta: daloolka meelaynta guud ahaan waa baahida loo qabo koontarool farsamo ee naxaas aan laga fiirsan karin, si aan loogu xiri karin wareegga sabuuradda iyo saxsanaanta sare.

5, dejinta qaabka kaadiheysta: waxay u baahan tahay inay ku jirto PCBA afar geesood ama dadab, si loo sameeyo meelaynta diyaarad dhibic badan leh, saxnaanta meelaynta, ka sii fiican ayaa ka sii fiican.

6, masaafada u dhexeysa daloolka meelaynta iyo barta imtixaanka waa inay ahaataa ugu yaraan 2mm, si looga hortago wareegga gaaban ee qaldan ee imtixaanka.

7. Masaafada u dhexaysa daloolka meelaynta iyo cidhifka saxanka waa ugu yaraan 2mm, taas oo aan fududayn in la dillaaco iyadoo la hubinayo awoodda PCBA.