Mune PCBA yekugadzirisa maitiro, kuwedzera kune batch soldering uchishandisareflowovheniuyewave solderingmuchina, manual soldering inodiwawo kuti ibudise chigadzirwa zvachose.
Nyaya dzinoda kutariswa paunenge uchiita bhuku rePCBA soldering:
1. Inofanirwa kushanda nemhete ye electrostatic, muviri wemunhu unogona kugadzira zvinopfuura 10,000 volts emagetsi emagetsi, uye IC ichakuvadzwa kana voltage inopfuura 300 volts, saka muviri wemunhu unoda kubudisa magetsi akadzikama pasi.
2. Pfeka magirovhosi kana chivharo chemunwe kushanda, maoko asina maoko haagone kubata zvakananga bhodhi uye zvinoumba goridhe munwe.
3. Weld panguva chaiyo tembiricha, welding angle, uye welding kutevedzana, uye chengetedza yakakodzera welding nguva.
4. Bata PCB nemazvo: Bata kumucheto kwePCB paunenge uchitora PCB uye usabata zvikamu pabhodhi nemaoko ako.
5. Edza kushandisa kutsika-kupisa welding: high-temperature welding ichawedzera oxidation ye solder iron tip, kuderedza hupenyu hwesimbi yesimbi.Kana tembiricha yesimbi yesimbi inodarika 470 ℃.Huwandu hweoxidation hwayo hunomhanya zvakapetwa kaviri se380 ℃.
6. Usashandisa kudzvinyirira zvakanyanya paunenge uchitengesa: paunenge uchitengesa, tapota usashandise kudzvinyirira kwakanyanya, kana zvisina kudaro ichaita kuti musoro wesimbi uwedzere kukanganisa, deformation.Chero bedzi iyo muromo wesimbi yesimbi inogona kubata zvizere mubatanidzwa we solder, kupisa kunogona kutamiswa.(Maererano nehukuru hwejoint solder kusarudza imwe simbi yesimbi, kuitira kuti simbi yesimbi inogonawo kuita zviri nani kupisa kupisa).
7. kuteta hakugogodze kana kuzunguza muromo wesimbi: kugogodza kana kuzunguza muromo wesimbi kuchaita kuti kupisa kwepakati kukuvadze uye marata mabhedhi apfure, kupfupisa hupenyu hwesevhisi yepakati yekudziya, marata kana akasaswa paPCBA anogona kuita dunhu pfupi. , zvichikonzera kusashanda zvakanaka kwemagetsi.
8. shandisa siponji yemvura yakanyorova kubvisa solder iron head oxide uye yakawandisa tin slag.Kuchenesa siponji yemvura yemukati kuti ienderane, yemukati memvura inodarika kwete chete haigone kubvisa zvachose musoro wesimbi pane solder shavings, asiwo nekuda kwekudonha kwakapinza kwekupisa kwemusoro wesimbi yesimbi (iyi kuvhunduka kwekushisa kune musoro wesimbi uye iyo yekudziya chinhu mukati mesimbi, kukuvadza kwakakura) uye kuburitsa kuvuza, manyepo ekunyepedzera uye kumwe kuderera kwesimbi, solder iron musoro wemvura inonamatira kubhodhi redunhu kuchaitawo ngura yebhodhi redunhu uye pfupi dunhu uye zvimwe zvakaipa, kana mvura iri zvishoma kana kwete nyoro mvura kurapwa, zvichaita kuti soldering simbi musoro kukuvara, oxidation uye kutungamirira kwete pamusoro tin, zvakafanana nyore kukonzera nhema soldering uye mamwe murombo soldering.Nguva dzose chengetedza mvura yemukati muponji yakakodzera, nepo kanenge katatu pazuva kuti uchenese chipanje mumarara uye mamwe mamarara.
9. Kuwanda kwetini uye kuyerera kunofanira kunge kwakakodzera paunenge uchitengesa.Kunyanya solder, nyore kukonzera kunyange tin kana kuvharidzira welding kuremara, zvishoma solder, kwete chete yakaderera michiniya simba, uye nokuda kwepamusoro oxidation layer zvishoma nezvishoma yakadzika nekufamba kwenguva, nyore kutungamirira kukundikana solder joint.Yakawandisa flux inosvibisa uye inoparadza iyo PCBA, izvo zvinogona kutungamirira kune kuvuza uye mamwe magetsi emagetsi, kushoma hakushande.
10. kazhinji chengetedza musoro wesimbi wesimbi pane tini: izvi zvinogona kuderedza mukana we oxidation yemusoro wesimbi, kuitira kuti musoro wesimbi uwedzere kusimba.
11. solder spatter, chiitiko che solder mabhora uye soldering mashandiro vane unyanzvi uye soldering simbi musoro tembiricha;solder flux spatter dambudziko: kana solder simbi yakanyatsonyungudutswa solder waya, flux ichakurumidza kupisa uye kuputika, kana solder, tora solder waya haina zvakananga kubata simbi nzira, inogona kuderedza flux spatter.
12. Paunenge uchitengesa, chenjerera kuti urege kuita kuti simbi inopisa inopisa kumativi epurasitiki ekudzivirira kwetambo uye pamusoro pezvikamu, kunyanya paunenge uchitengesa chimiro chekugadzirisa, chimiro chezvigadzirwa zvakaoma.
13. Paunenge uchitengesa, zvakakosha kuti uzviongorore.
a.Kana pane leakage ye welding.
b.Kunyangwe iyo solder joint yakatsetseka uye yakazara, inopenya.
c.Kunyangwe paine yasara solder yakatenderedza solder joint.
d.Kana paine kana rata.
e.Kana pad yadzima.
f.Kana iyo solder joint ine kuputika.
g.Kunyangwe majoini ekutengesa akadhonza muromo wechiitiko.
14. Welding, asi zvakare inofanirwa kutarisisa kune dzimwe nyaya dzekuchengetedza, pfeka mask, uye ine feni uye nemimwe michina yekufemesa kuti uchengetedze kufefetedza kwechiteshi chewelding.
Mune PCBA Chinyorwa welding, teerera kune mamwe matanho ekutanga, anogona kuvandudza zvakanyanya welding tekinoroji uye chigadzirwa welding mhando.
Nguva yekutumira: Mar-03-2022