1. isina kufanira preheating tembiricha.Kunyanya kuderera tembiricha kuchaita kuti murombo activation of flux kana PCB bhodhi uye kusakwana tembiricha, zvichikonzera kusakwana tini tembiricha, kuti mvura solder wetting simba uye fluidity anova murombo, pedyo mitsetse pakati solder joint zambuko.
2. Flux preheat tembiricha yakanyanyisa kana yakaderera, kazhinji mu100 ~ 110 madhigirii, preheat yakaderera zvakanyanya, flux chiitiko haina kukwirira.Preheat yakakwira zvakanyanya, mutin simbi flux yaenda, asi zvakare nyore kunyange tin.
3. Hapana kuyerera kana kuyerera hakuna kukwana kana kusaenzana, kudzvanywa kwepamusoro kwesimbi yakanyungudutswa yetini haina kuburitswa, zvichiita kuti kuve nyore kunyange tin.
4. Tarisa kutonhora kwechoto chekutengesa, chidzore paanenge 265 degrees, zvakanakisisa kushandisa thermometer kuyera kupisa kwevheji kana wave ichiridzwa kumusoro, nokuti sensor yekushisa yemidziyo inogona kunge iri pasi. chevira kana dzimwe nzvimbo.Kusakwana preheating tembiricha kuchaita kuti zvinoriumba havagoni kusvika tembiricha, welding muitiro nokuda chikamu kupisa absorption, zvichiita murombo kukweva tin, uye paumbwe kunyange tin;panogona kunge paine tembiricha yakaderera yevira rerata, kana kumhanya kwewelding kunokurumidza.
5. Nzira yekushanda isina kunaka kana ruoko ruchinyika tini.
6. kuongorora nguva dzose kuita tin kuumbwa kuongororwa, panogona kunge kune mhangura kana imwe simbi yemukati inopfuura mwero, zvichiita kuti tini ifambe yakaderedzwa, nyore kukonzera kunyange tini.
7. solder isina kuchena, solder mutsvina yakabatanidzwa inodarika chiyero chinobvumirwa, maitiro emutengesi achachinja, kunyorova kana fluidity zvishoma nezvishoma kunowedzera kuipa, kana antimony inodarika 1.0%, arsenic inopfuura 0.2%, yakaparadzaniswa kupfuura 0.2%. 0.15%, iyo fluidity ye solder ichaderedzwa ne25%, nepo arsenic yemukati isingasviki 0.005% ichave de-wetting.
8. tarisa wave soldering track angle, 7 madhigirii ndiyo yakanyanya kunaka, zvakare flat iri nyore kuturika tini.
9. PCB bhodhi deformation, mamiriro ezvinhu aya kuchaita kuti PCB kuruboshwe pakati rworudyi matatu kudzvinyirirwa wave kudzika kusapindirana, uye kunokonzerwa nokudya tin yakadzika nzvimbo tini kuyerera hakusi yakatsetseka, nyore kubudisa zambuko.
10. IC uye mutsara wekugadzirwa kwakashata, kuiswa pamwe chete, mativi mana eIC dense foot spacing <0.4mm, pasina kurerekera kona mubhodhi.
11.pcb inopisa pakati singi deformation kunokonzerwa kunyange tini.
12. PCB board welding angle, theoretically the great angle, the solder joints in the wave from the wave before and after the solder joints from the wave apo mikana ye common surface idiki, mikana yebhiriji zvakare idiki.Zvisinei, kona ye soldering inotarirwa nekunyorova maitiro e solder pachayo.Kazhinji kutaura, kona ye leaded soldering inogadziriswa pakati pe4 ° ne9 ° zvichienderana nePCB dhizaini, nepo lead-isina soldering inogadziriswa pakati pe4 ° ne6 ° zvichienderana nemutengi PCB dhizaini.Izvo zvinofanirwa kucherechedzwa kuti muhombe yekona yewelding process, iyo yekumberi yePCB dip tin ichaita senge inodya tin mukushaikwa kwetin pane iyo mamiriro, ayo anokonzerwa nekupisa kwePCB board kusvika pakati. iyo concave, kana mamiriro ezvinhu akadaro achifanira kuva akakodzera kuderedza welding angle.
13. pakati redunhu bhodhi Mapedhi haana kugadzirwa kuramba solder dhamu, pashure kudhinda pamusoro solder paste yakabatana;kana redunhu bhodhi pacharo rakagadzirirwa kuramba solder dhamu / zambuko, asi mune yakapedzwa chigadzirwa kupinda chikamu kana zvose kure, uyewo nyore kunyange tin.
Nguva yekutumira: Nov-02-2022