Mazhinji eiyo pcba yekugadziridza fekitori ichasangana nechakaipa chiitiko, SMT chip zvikamu mukugadzirisa chip kugadzirisa kupera kusimudza.Mamiriro ezvinhu aya akaitika mudiki saizi chip capacitive zvikamu, kunyanya 0402 chip capacitors, chip resistors, chiitiko ichi chinowanzo kunzi "monolithic phenomenon".
Zvikonzero zvekugadzira
(1) zvikamu pamativi ese e solder paste kunyunguduka nguva haina synchronized kana pamusoro tension yakasiyana, senge murombo kudhinda solder paste (imwe magumo ane chakaremara), namira kurerekera, zvinoumba solder magumo saizi yakasiyana.Kazhinji nguva dzose solder paste mushure mekunyunguduka kwadhonzwa.
(2) Padhi dhizaini: padhi yekusvika kureba ine yakaringana siyana, ipfupi kana yakarebesa inotarisana nechiitiko chekumira monument.
(3) Solder paste inokweshwa zvakakora uye zvikamu zvinoyangarara kumusoro mushure mekunge solder paste yanyungudika.Muchiitiko ichi, zvikamu zvichange zviri nyore kuvhuvhuta nemhepo inopisa kuti zviitike chiitiko chekumira monument.
(4) Tembiricha yekumisikidza curve: monoliths inowanzoitika panguva iyo solder joint inotanga kunyunguduka.Chiyero chekushisa chinokwira pedyo nenzvimbo yakanyunguduka yakakosha zvikuru, zvishoma nezvishoma zviri nani kubvisa monolith phenomenon.
(5) Imwe yechikamu chesolder inopera ine oxidised kana yakasvibiswa uye haigone kunyorova.Chengetedza zvakanyanya kune zvikamu zvine chidimbu chimwe chesirivha pamagumo ekutengesa.
(6) Pedhi yakasvibiswa (ine silkscreen, solder resist inki, yakanamatira kune imwe nyika, yakasvibiswa).
Nzira yekugadzira:
Kana reflow soldering, kupisa kunoshandiswa kumusoro uye pasi pechikamu che chip panguva imwe chete.Kazhinji, inogara iri padhi ine nzvimbo yakakura yakavhurika iyo inotanga kupisa kusvika kune tembiricha pamusoro penzvimbo yekunyungudika ye solder paste.Nenzira iyi, kuguma kwechikamu chinozonyoroveswa ne solder kunowanzo kukweverwa kumusoro nekukakavadzana kweiyo solder kune rumwe rutivi.
Mhinduro:
(1) maitiro ekugadzira
Dhizaini inonzwisisika yepedhi - saizi yekutaura inofanirwa kuve inonzwisisika, nesezvinogoneka kudzivirira kureba kwekusvika kunoumba ekunze kwepadhi (yakatwasuka) yekunyorova kona inopfuura 45 °.
(2) Nzvimbo yekugadzira
1. shingai kupukuta mambure kuona kuti solder namira zvibodzwa zvibodzwa zvizere.
2. yakarurama yekuisa nzvimbo.
3. Shandisa non-eutectic solder paste uye kuderedza chiyero chekupisa kwekushisa panguva ye reflow soldering (kutonga pasi pe2.2 ℃ / s).
4. Mutete kukora kwesolder paste.
(3) Zvinhu zvinopinda
Nyatsodzora hutano hwezvinhu zvinopinda kuti uone kuti nzvimbo inoshanda yezvikamu zvakashandiswa zvakakura zvakafanana kumativi ose maviri (nheyo yekugadzira kushushikana kwepamusoro).
Zvimiro zveNeoDen IN12C Reflow Oven
1. Built-in welding fume filtration system, kusefa kunobudirira kwemagasi anokuvadza, kutaridzika kwakanaka uye kuchengetedzwa kwezvakatipoteredza, zvakanyanya maererano nekushandiswa kwepamusoro-soro.
2.The control system ine maitiro ekubatana kwepamusoro, kupindura panguva yakakodzera, kuderera kwekukundikana kwehuwandu, nyore kugadzirisa, nezvimwewo.
3. Yakangwara, yakabatanidzwa nePID control algorithm yetsika-yakagadzirwa intelligent control system, iri nyore kushandisa, ine simba.
4. nyanzvi, yakasarudzika 4-nzira bhodhi pamusoro tembiricha monitoring sisitimu, kuitira kuti chaiyo oparesheni mune panguva uye yakazara mhinduro data, kunyangwe kune yakaoma zvigadzirwa zvemagetsi zvinogona kushanda.
5. Yakagadzirwa-yakagadzirwa-stainless simbi B-mhando mesh bhandi, yakasimba uye isingapfeki.Kushandiswa kwenguva refu hakusi nyore deformation
6. Yakanaka uye ine tsvuku, yero uye yakasvibirira alarm basa rechiratidzo chekugadzira.
Nguva yekutumira: May-11-2023