Soldering ndechimwe chezvinhu zvinokosha zvikamu zvemagetsi gungano muitiro pcb vagadziri.Kana pasina kuwirirana kwehutano hwehupi hwekutengesa, chero zvigadzirwa zvemagetsi zvakanyatsogadzirwa zvichave zvakaoma kuzadzisa zvinangwa zvekugadzira.Saka, panguva yekugadzira welding, zvinotevera zvinofanirwa kuitwa:
1. Kunyange kana weldability yakanaka, welding surface inofanira kuchengetedzwa yakachena.
Pamusana pekuchengetedza kwenguva refu uye kusvibiswa, mafirimu e-oxide anokuvadza, mavara emafuta, nezvimwewo zvinogona kugadzirwa pamusoro pemasolder pads.Nokudaro, nzvimbo yacho inofanira kucheneswa isati yatungidzirwa, kana zvisina kudaro zvakaoma kuvimbisa kunaka.
2. Kupisa uye nguva yewelding inofanira kunge yakakodzera.
Kana solder iri yunifomu, solder uye solder simbi inodziya kusvika pakudziya tembiricha kuitira kuti solder yakanyunguduka inyore uye ipararire pamusoro pesimbi inotengeswa uye inoita musanganiswa wesimbi.Nokudaro, kuitira kuti uve nechokwadi chekubatana kwakasimba solder, zvakakosha kuva nekushisa kwakakodzera kwekutengesa.Pakupisa kwakanyanya, solder inogona kunyorova uye kuparadzirwa kuita alloy layer.Tembiricha yakakwira zvakanyanya kuti isabatike.Soldering nguva ine simba guru pane solder, kunyorova kwezvikamu zvakatengeswa uye kuumbwa kwechisungo chisungo.Kunyatsogona nguva yewelding ndiyo kiyi yemhando yepamusoro welding.
3. Solder majoini anofanira kuva akakwana mechanical simba.
Kuti uve nechokwadi chekuti zvikamu zvakashongedzwa hazvidonhe uye kusunungura pasi pekudengenyeka kana kukanganisa, zvinodikanwa kuve nemagetsi akakwana simba remasolder majoini.Kuti majoini anotengeswa ave nesimba rakakwana remagetsi, nzira yekupeta materminals ezvinotengeswa zvezvikamu zvakatengeswa inogona kushandiswa kazhinji, asi yakawandisa solder haifanirwe kuunganidzwa, izvo zvinogona kukonzera mapfupi maseketi pakati pechokwadi solder uye mapfupi maseketi.Solder joints uye solder joints.
4. Welding inofanira kuva yakavimbika uye inovimbisa conductivity yemagetsi.
Kuti uite majoini e solder ane conductivity yakanaka, zvakakosha kudzivirira kutengesa kwenhema.Welding zvinoreva kuti hapana alloy chimiro pakati pe solder uye solder pamusoro, asi inongoomerera kune yakatengeswa simbi pamusoro.Mukushongedza, kana chikamu chealloy chikaumbwa uye chakasara chisina kuumbwa, mubatanidzwa we solder unogonawo kupfuura ikozvino munguva pfupi, uye zvakaoma kuwana matambudziko nechiridzwa.Nekudaro, nekufamba kwenguva, iyo nzvimbo isingaite alloy ichave oxidized, izvo zvinotungamira kune chiitiko chekuvhura uye kutsemuka kwenguva, izvo zvinozokonzeresa matambudziko emhando yechigadzirwa.
Muchidimbu, hutano hwakanaka hwekutengesa hunofanira kuva: iyo solder joint inopenya uye yakatsetseka;iyo solder layer iyunifomu, yakaonda, inokodzera ukuru hwepadhi, uye mhedziso yemubatanidzwa haina kujeka;iyo solder yakakwana uye inopararira muchimiro chejasi;hapana makatsemuka, mapinikoni, Hapana flux inosara.
Nguva yekutumira: Mar-21-2023