Maitiro eku Weld Maviri-sided Circuit Boards?

I. Double-sided redunhu bhodhi maitiro

Musiyano pakati pe-single-sided and double-sided circuit boards ndiyo nhamba yezvikamu zvemhangura.

Kaviri-sided redunhu bhodhi ibhodhi redunhu rine mhangura kumativi ese, iro rinogona kubatanidzwa kuburikidza nemakomba.Uye kune rumwe rutivi chete rwemhangura kune rumwe rutivi, iyo inogona kushandiswa chete kune mitsetse iri nyore, uye maburi akagadzirwa anogona kushandiswa chete plug-in asi kwete kuitisa.

Izvo zvinodiwa zvehunyanzvi zvekaviri-sided redunhu bhodhi ndeye wiring density, iyo aperture idiki, uye aperture yegomba resimbi idiki uye idiki.Layer to layer yekubatanidza zvinoenderana nemhando yegomba rakagadzirwa nesimbi, rakanangana nekuvimbika kwePCB.

Nekuderedzwa kweaperture, yekutanga haina mhedzisiro pane yakakura aperture marara, senge brashi tsvina, volcanic ash, kana yangosiiwa mugomba mukati, ichaita kuti kemikari inonaya yemhangura, copper plating kurasika, hapana gomba remhangura. , kuva muurayi anouraya wegomba metallization.

II.Kaviri-sided redunhu bhodhi kuitira kuti ive nechokwadi chekuti kaviri-mativi dunhu rine yakavimbika conductive mhedzisiro, inofanira kutanga yashandisa waya uye zvichingodaro welding gomba rekubatanidza pane kaviri mapaneru (kureva, iyo metallization process kuburikidza negomba chikamu), uye cheka tambo yekubatanidza tip inobuda chikamu, kuitira kuti usakuvadza ruoko rwemushandisi, iyi ibhodhi rekugadzirira wiring.

III.Reflow ovheniwelding zvakakosha:

1. Kugadziriswa kwemaitiro kuchaitwa maererano nezvinodiwa zvemaitiro ekudhirowa kwemidziyo inoda kuumbwa;Ndiko, mushure mekutanga epurasitiki plug-in.

2. Mushure mekugadzira, chimiro chechiso che diode chinofanira kunge chiri kumusoro, uye urefu hwepini mbiri haifaniri kunge inopesana.

3. Kana mudziyo une polarity zvinodiwa ukaiswa, teerera kune polarity haizoisirwe kumashure, uye roller yakasanganiswa block components, mushure mekuiswa, ingave yakamira kana recumbent mudziyo, haizove neinorerekera pachena.

4. Simba resimbi yemagetsi inoshandiswa pakugadzira iri pakati pe25 ~ 40W, kutonhora kwemusoro wesimbi yemagetsi kunofanira kudzorwa paanenge 242 deG C, kutonhora kwakanyanya kumusoro musoro zviri nyore "kufa", kutonhora kuri. yakaderera zvakanyanya kunyungudutsa solder, nguva yewelding inodzorwa mu3 ~ 4 masekondi.

5. Formal welding maererano mudziyo kubva kumusoro kusvika kumusoro, kubva mukati kusvika kunze welding musimboti kushanda, welding nguva kuna tenzi, yakarebesa nguva achava inopisa mudziyo zvakaipa, achavawo inopisa mhangura coated waya pamusoro ndiro yakavharwa nendarira.

6. Nemhaka yokuti inoputira kaviri-sided, saka inofanirawo kuita chimiro chekugadzirisa kuisa bhodhi redunhu, kuitira kuti usatsikirira chigadziro chiri pasi apa.

7. pashure kupedzwa redunhu bhodhi welding kunofanira kuitwa nzwisisika cheki pamusoro yokumaka mhando, tarisa leakage welding nzvimbo, kusimbisa redunhu bhodhi pashure redundant mudziyo pini kuchekerera, pashure kuyerera kupinda rinotevera muitiro.

8. Mukushanda kwakananga, inofanirawo kunyatsotevera maitiro akakodzera maitiro ekushanda, kuve nechokwadi chemhando yewelding yezvigadzirwa.

Nekukurumidza kukura kwehunyanzvi hwepamusoro, zvigadzirwa zvemagetsi zvine hukama zvakanyanya neruzhinji zvinogara zvichivandudzwa, veruzhinji vanodawo kuita kwepamusoro, hukuru hudiki, zvigadzirwa zvemagetsi zvemagetsi zvakawanda, izvo zvinoisa mberi zvinodiwa zvitsva zvebhodhi redunhu.