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Chii chinonzi SMT?

Iyo yakawanda yakawanda yemagetsi ekutengesa ndeye zvese zvine chekuita nedunhu rakaomarara rakakwana munzvimbo diki.Kuti uite izvi, zvikamu zvinoda kuiswa zvakananga pabhodhi redunhu pane kusungirirwa.Izvi ndizvo chaizvo izvo surface Mount tekinoroji.

Iyo Surface Mount Technology yakakosha here?

Huzhinji hukuru hwemagetsi anhasi anogadzirwa neSMT, kana yepamusoro Mount tekinoroji.Zvishandiso uye zvigadzirwa zvinoshandisa SMT zvine huwandu hukuru hwezvakanakira pamusoro pechinyakare maseketi anofambiswa;zvishandiso izvi zvinozivikanwa seSMDs, kana pamusoro pezvishandiso zvekukwira.Aya mabhenefiti akave nechokwadi chekuti SMT yatonga nyika yePCB kubva payakaumbwa.

Zvakanakira zveSMT

• Mukana mukuru we SMT kubvumidza otomatiki kugadzirwa uye soldering.Iyi inodhura uye inochengetedza nguva uye zvakare inobvumira kune inowirirana dunhu.Iko kuchengetedza mumitengo yekugadzira inowanzopfuudzwa kune mutengi - zvichiita kuti zvive zvinobatsira kune wese.
• Makomba mashoma anoda kudhirwa pamapuranga edunhu
• Mutengo wakaderera pane kuburikidza-gomba zvakaenzana zvikamu
• Chero divi redunhu redunhu rinogona kuve nezvikamu zvakaiswa pairi
• SMT zvikamu zvidiki zvakanyanya
• Higher component density
• Kuita zvirinani pasi pekuzunungusa uye vibration mamiriro.

Zvakaipa zve SMT

• Zvikamu zvakakura kana zvepamusoro-simba hazvina kukodzera kunze kwekunge kuburikidza ne-gole kuvaka kuchishandiswa.
• Kugadzirisa nemaoko kunogona kuoma zvakanyanya nekuda kwehukuru hwakadzikira hwezvikamu.
• SMT inogona kunge isina kukodzera kune zvikamu zvinogashira kubatanidza uye kubvisa.

Chii chinonzi SMT zvishandiso?

Surface Mount zvishandiso kana maSMDs midziyo inoshandisa pamusoro pekukwira tekinoroji.Izvo zvakasiyana-siyana zvinoshandiswa zvakagadzirirwa zvakananga kutengeswa zvakananga kubhodhi kwete waya pakati pemapoinzi maviri, sezvazvinoita kuburikidza negomba tekinoroji.Kune matatu makuru mapoka eSMT zvikamu.

Passive SMDs

Iyo yakawanda yepasirese SMDs inopikisa kana capacitors.Iwo masaizi epasuru yeaya akamisikidzwa zvakanaka, zvimwe zvikamu zvinosanganisira makoiri, makristasi uye zvimwe zvinowanzova nezvakawanda zvinodiwa.

Integrated circuits

Forruzivo rwakawanda pamusoro pemasekete akabatanidzwa muhuwandu, verenga blog yedu.Nezve SMD zvakananga, ivo vanogona kusiyanisa zvakanyanya zvichienderana nekubatana kunodiwa.

Transistors uye diodes

Transistors uye diodes anowanzo kuwanikwa mune diki purasitiki package.Inotungamira inogadzira zvinongedzo uye bata bhodhi.Aya mapakeji anoshandisa matatu anotungamira.

Nhoroondo pfupi yeSMT

Surface Mount tekinoroji yakashandiswa zvakanyanya muma1980s, uye mukurumbira wayo wakangokura kubva ipapo.Vagadziri vePCB vakakurumidza kuona kuti michina yeSMT yaive yakanyanya kusimba kugadzira kupfuura nzira dzaivepo.SMT inobvumira kuti kugadzirwa kuve kwakagadzirwa zvakanyanya.Pakutanga, maPCB akange ashandisa waya kubatanidza zvikamu zvawo.Waya idzi dzaibatwa nemaoko pachishandiswa nzira yekuburikidza neburi.Makomba aiva pamusoro pepuranga aiva newaya dzakaiswa mukati mawo, uye iwayawo, aibatanidza zvinhu zvemagetsi pamwe chete.MaPCB echivanhu aida vanhu kuti vabatsire mukugadzira uku.SMT yakabvisa nhanho iyi yakaoma kubva mukuita.Zvikamu zvakatengeswa pamapadhi pamabhodhi panzvimbo - saka 'kukwira kwepamusoro'.

SMT inobata

Nzira iyo SMT yakazvikweretesa kune mechanization yaireva kuti kushandiswa kwakapararira nekukurumidza muindasitiri yese.Seti itsva yese yezvikamu zvakagadzirwa kuti zvienderane neizvi.Idzi dzinowanzova diki pane dzadzo dzepaburi-buri.MaSMD akakwanisa kuve nepini yepamusoro yakawanda.Kazhinji, maSMTs zvakare akanyanya compact pane kuburikidza-gomba redunhu mabhodhi, achibvumira kuderera kwemitengo yekufambisa.Pakazara, zvishandiso zvinongonyanya kushanda uye zvine hupfumi.Ivo vanokwanisa kufambira mberi kwetekinoroji izvo zvaisave zvisingafungidzirwe vachishandisa kuburikidza-buri.

Inoshandiswa mu2017

Surface mount assembly ine inenge yakazara kutonga kwePCB kugadzira maitiro.Kwete chete ivo vanonyanya kushanda kugadzira, uye madiki kutakura, asi aya madiki maturusi anoshandawo zvakanyanya.Zviri nyore kuona kuti sei kugadzirwa kwePCB kwafamba kubva kune wired kuburikidza-gomba nzira.