Qayb: arrimo kala duwan oo saameeya qiimaha guddiga PCB-ga
Qiimaha PCB wuxuu had iyo jeer ahaa halxiraale iibsadayaal badan, dad badanina waxay la yaabi doonaan sida qiimahan loo xisaabiyo marka dalabaadka online-ka la soo gelinayo. Aynu ka wada hadalno qaybaha qiimaha PCB-ga.
- Qalabka kala duwan ee loo isticmaalo PCB-ga ayaa keenaya qiimooyin kala duwan
Tusaale ahaan, guddi labajibbaaran oo caadi ah, saxanku guud ahaan wuxuu leeyahay FR4 (Sheng yi, Kingboard, Guoji, saddex qiimayaal kor ilaa hoos), dhumucda saxanka laga bilaabo 0.2 mm ilaa 3.0 mm, dhumucdiisuna tahay 0.5 oz ilaa 3 oz, kuwaas oo dhan waxay ku jiraan alaabta saxanka ah oo ku saabsan farqiga qiimaha weyn; Khadka caabbinta, saliidda heerkulbeegga caadiga ah iyo saliid cagaaran oo sawir leh ayaa sidoo kale jira farqi qiimo gaar ah.
2.Habab daaweyn oo kala duwan ayaa keenaya qiimo kala duwan
Habka daaweynta dusha sare ee caadiga ah: OSP (caabbinta oksaydhka), waxaa jira HASL, HASL-free-lead-free HASL (deegaanka), dajinta dahabka, Dahabka Immersion iyo habka isku dhafka ah, iyo wixii la mid ah, qiimaha habka ayaa qaali ah mustaqbalka.
3.PCB lafteeda oo ay sababtay dhibka kala duwan ee kala duwanaanshaha qiimaha.
Waxaa jira 1000 godad oo ku yaal labada loox ee wareegga. Haddii cabbirka daloolka mid ka mid ah loox uu ka weyn yahay 0.2mm, cabbirka daloolka looxa kale wuxuu ka yar yahay 0.2mm. Haddii laba nooc oo loox wareeg ah ay isku mid yihiin, laakiin ballaca xariiqa iyo kala dheeraynta xariiqdu ay kala duwan tahay, mid ka weyn yahay 4mil, ka kalena uu ka yar yahay 4mil, waxay sidoo kale keeni doontaa kharashyo kala duwan oo wax soo saar ah. Xiga weli dhowr ma socdaan naqshadeynta socodka farsamada caadiga ah sidoo kale waa in lagu daro lacag ururin, tusaale ahaan dalool nus ah, dalool indho la'aan ah aaso, dalool saxan, riix saxan muhiim ah si aad u daabacdo saliid kaarboon.