Soldering Techniques yeDouble-sided PCB

Kaviri-sided redunhu bhodhi maitiro

Single-sided circuit board uye kaviri-sided circuit board mumusiyano ndiyo nhamba yezvikamu zvemhangura zvakasiyana.Kaviri-sided redunhu bhodhi ndiro bhodhi kumativi ose mhangura, anogona kuva kuburikidza buri kuita basa rekubatanidza.Single-sided chete layer yemhangura, inogona kungoita mutsara wakapfava, gomba rakagadzirwa rinogona kushandiswa chete plug-in haigone kuve conduction.

The hwokugadzira zvinodiwa kaviri-kumativi redunhu bhodhi ndiye wiring density anova hombe, diki gomba dhayamita, metalized gomba dhayamita ari kuwanawo duku.Layer uye layer interconnection inoenderana negomba remetallization, mhando yacho yakanangana nekuvimbika kwebhodhi redunhu rakadhindwa.

Nekuderedzwa kweaperture, yekutanga kune yakakura aperture haina kukanganisa marara, senge kukuya marara, volcanic dota, kana yangosara mugomba diki mukati, ichaita kuti kemikari inonaya mhangura, copper plating irasikirwe, gomba. pasina mhangura, iva gomba metallization yemhondi inouraya.

Kaviri-sided redunhu bhodhi welding nzira

Kaviri-mativi edunhu redunhu bhodhi kuitira kuti ive nechokwadi chekuti mativi maviri-mativi edunhu ane yakavimbika conductive mhedzisiro, isu tinokurudzira kuti iwe unofanirwa kutanga washandisa waya uye zvakadaro kupinza gomba rekubatanidza pane kaviri-mativi mapaneru (kureva, iyo metalization process kuburikidza ne gomba chikamu), uye cheka tambo yekubatanidza tip inobudikira chikamu, kuitira kuti usabaya ruoko rwemushandisi, rinova iro bhodhi rekubatanidza basa rekugadzirira.

Double-sided circuit board welding zvinokosha

1. Pane zvinodiwa pakuumbwa kwechigadziro chinofanira kunge chiri maererano nezvinodiwa zvemaitiro ekudhirowa kwekuita;ndiko kuti, kutanga kuumba mushure me plug-in.

2. mushure mekugadzira diode model side inofanira kutarisana kumusoro, hapafaniri kuva nekusawirirana muhurefu hwepini mbiri.

3. mudziyo une polarity zvinodiwa kana waiswa kuti uteerere kune polarity hauzoisirwe kumashure, roll integrated block components, mushure mekuisa, ingave yakatwasuka kana yekunyepa mudziyo, hapazovi nekurereka kuri pachena.

4. Soldering iron simba re25 kusvika 40W, soldering iron head tembiricha inofanira kudzorwa panenge 242 ℃, tembiricha yakakwira zvakanyanya musoro "yakafa", tembiricha yakaderera haigone kunyungudutsa solder, soldering nguva yekutonga mu3 kusvika 4. seconds.

5.Reflow ovheni or wave soldering muchinaformal welding inowanzoenderana nemudziyo kubva kupfupi kusvika kumusoro, kubva mukati kuenda kunze kweiyo welding musimboti kushanda, welding nguva yekubata, yakarebesa ichapisa mudziyo, ichapisawo mitsara yakashongedzwa yemhangura pamucheka wendarira. board.

6. Nemhaka yokuti iri mbiri-sided welding, saka inofanirawo kuita nzira yekuisa dhizaini yebhodhi uye zvichingodaro, chinangwa hachisi chekutsikirira oblique pasi pechigadziro.

7. mushure mekupedzwa kwebhodhi redunhu soldering kunofanira kuva cheki yakazara pamusoro pehuwandu hwemhando, tarisa nzvimbo iyo pane kudonhedza kwekupinza uye kubuda kwekutsvaira, kusimbisa bhodhi redunhu redundant zvishandiso zvakadai sepini yekucheka, mushure mokunge. kuyerera muchikamu chinotevera.

8, mune chaiyo mashandiro, inofanirwawo kunyatsotevedzera maitiro akakodzera maitiro ekushanda kuti ave nechokwadi chemhando yechigadzirwa welding.

Nekukurumidza kukura kwepamusoro-tekinoroji, uye hukama hwepedyo hweveruzhinji nezvigadzirwa zvemagetsi mukuvandudzwa kunoramba kuripo, veruzhinji vanodawo kuita kwepamusoro, saizi diki, zvigadzirwa zvemagetsi zvinoshanda, izvo zvinoisa mberi zvinodiwa zvitsva zvebhodhi redunhu.

Kaviri-sided redunhu bhodhi saka anozvarwa, nekuda kwekushandiswa kwakapararira kwekaviri-sided redunhu bhodhi, zvichiita kuti yakadhindwa redunhu bhodhi kugadzira zvakare kujekesa, kutetepa, kupfupi, kudiki kusimudzira.

yakazara auto SMT yekugadzira mutsara


Nguva yekutumira: Feb-22-2022

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