Mazhinji mainjiniya emagetsi anofanirwa kunge akatengesa bhodhi nesoldering iron, uye rata rekutengesa rine chepfu here?
1.Is solder tin ine solder iron ine chepfu?
Vamwe vashandisi vepa internet vanoita zvichemo pamusoro pekuti akashandisa tin solder gore rese paPCB fekitori.Akanzwa kuti akanga otanga kunzwa kusagadzikana, uye mudumbu make makaita kakuzvimba.Ichepfu yemutobvu here?
Muchokwadi, zvinoenderanawo nekuti iyo solder wire inoshandiswa kunyorera nesimbi yemagetsi solder haina lead-isina kana isiri pabasa, uye iyo inotungamira ropa inoda kuongororwa nguva dzose.Kana ikasapfuura mwero, hapazovi nedambudziko zvachose.Ko solder ine chepfu here?
Kazhinji kutaura, kana dziviriro uye kutenga zvinhu zvakabikwa zvichiitwa zvinoenderana nemitemo yenyika, simbi yekunyungudutsa haizokonzerese kukanganisa kukuru.Ikozvino zvinonyanya kutungamira-isina zvigadzirwa zvinoshandiswa.
Mutobvu chinhu chine muchetura.Kunyanya kutorwa nemuviri wemunhu kunokonzeresa chepfu yemutobvu.Kudya kwakaderera kwedosi kunogona kukanganisa hungwaru hwevanhu, hurongwa hwetsinga uye kubereka.Iyo alloy yetin uye lead ndiyo inowanzoshandiswa solder.Iyo ine yakanaka simbi conductivity uye yakaderera melting point.Naizvozvo, yakashandiswa muwelding tekinoroji kwenguva yakareba.Kuchetura kwayo kunonyanya kubva kumutobvu.Utsi hwomutobvu hunogadzirwa nemarata anosoneredza hunogona kutungamirira nyore kuchepfu yomutobvu.
Mutobvu wesimbi unogona kugadzira makemikoro emutobvu, ayo ose anorongwa sezvinhu zvine ngozi.Mumuviri wemunhu, mutobvu uchakanganisa central nerve system uye itsvo.Kupisa kwezvakatipoteredza kwemutobvu kune zvimwe zvipenyu kwakasimbiswa.Ropa rinotungamira kusungwa rakasvika 10 μ G / dL kana kupfuura rinoburitsa inonzwisisika biochemical mhedzisiro.Kana yakafumurwa kwenguva yakareba, huwandu hwekutungamira kweropa hunodarika 60 ~ 70 μ G / dl huchakonzera chepfu yekiriniki.
Mutobvu unofanira kuva muchetura.Ngazvisadaro kuti solder tin haina zvazvinoita pamuviri.Kunyange simbi dzakajairwa dzine chepfu kana dzakawandisa.Paunenge uchitengesa tini, pachava nehutsi, iyo ine chinhu chinokuvadza kumuviri.Paunenge uchishanda, zviri nani kupfeka mask, asi zvicharamba zvichikanganisa.Ehe, kana iwe ukagona kushandisa lead-isina solder waya, ichave yakachengeteka zvakanyanya kupfuura iyo ine lead.
2、 Ko lead-isina solder ine chepfu?
Iyo inoshandiswa kugadzira tin ne electric soldering iron is solder wire.Kunyange zvazvo chikamu chayo chikuru chiri tin, inewo dzimwe simbi.Iyo inonyanya kukamurwa kuita lead uye isina-lead (kureva kuchengetedzwa kwezvakatipoteredza mhando).Nekuunzwa kweEU ROHS yakajairika, akawanda uye akawanda PCB welding mafekitori anosarudza lead-isina uye nharaunda-inoshamwaridzika.Lead solder wire iri zvakare kuchinjwa zvishoma nezvishoma, iyo isingabatanidzi nharaunda uye haigone kutengeswa kunze kwenyika.Lead isina solder paste, lead-isina tin waya uye lead-isina tin bar ndizvo zvigadzirwa zvikuru pamusika parizvino.
Kungotaura zviri nyore: tini rinowanzo shandiswa soldering rine muchetura nekuda kwekunyungudika kwayo kwakadzikira, ine 60% lead uye 40% tin.Marata akawanda ekutengesa pamusika ane buri uye ane rosin, saka gasi rawataura rinofungidzirwa kuti rinoputika kana rosin iri musolder tin inonyungudika panguva yewelding.Iyo gasi yakasvibiswa kubva kurosin zvakare ine muchetura zvishoma.Gasi iri rinonhuwa zvakaipa.
Chinhu chikuru chengozi yekusodha tini utsi hwemutobvu.Kunyange marata ekusodha asina mutobvu ane mwero wakati wemutobvu.Muganho weutsi hwe lead mu gbz2-2002 wakadzikira uye une muchetura, saka unofanirwa kuchengetedzwa.Nekuda kwekukuvadzwa kwewelding process kumuviri wemunhu uye zvakatipoteredza, muEurope, kuchengetedzwa kwevashandi vewelding uye kuchengetedza kwezvakatipoteredza kwakasimbiswa nenzira yemutemo.Welding pasina matanho ekudzivirira hazvibvumirwi.MuISO14000 yakajairwa, pane zviri pachena zvinopihwa pakurapa uye kudzivirira kusvibiswa kunogadzirwa mumagadzirirwo ekugadzira.
Tin ine lead.Kare, paive nemutobvu muwaya inotengeswa.Solder inorongedzerwa senzvimbo yengozi yebasa (munenyika catalog yezvirwere zvebasa);Iye zvino mabhizinesi edu ese anoshandisa lead-isina solder waya.Chikamu chikuru itini, uye pakati peChirwere Chekudzivirira nekudzivirira matanho tin dioxide;Haisi muboka rezvirwere zvebasa renyika.
Kazhinji kazhinji, utsi hwomutobvu mumuitiro usina mutobvu haupfuuri mwero, asi kune dzimwe njodzi mumarata okusodha.Semuenzaniso, soldering flux (rosin zvinhu) ine dzimwe njodzi, iyo inofanirwa kuonekwa maererano nemamiriro chaiwo.Vashandi vanogona kazhinji kutarisa chiziviso uye chikamu chematini akagoverwa, kuitira kuti akwanise kunyorwa zvakanaka uye anoda kuti bhizinesi rigadzirise (vanogona kupa maonero kumubatanidzwa wemukati wefekitori).Kana tini iine mutobvu, inofanira kunge ichikuvadza hutano hwako.Nokufamba kwenguva, vanoungana mumuviri uye vakonzeresa kukuvadzwa kukuru kune immune system yetsinga.
Lead yakasununguka solder waya inoshamwaridzana zvakatipoteredza, asi mutobvu-isina solder waya inokuvadzawo kumuviri wemunhu.Iyo yakaderera lead yemukati ye lead-isina solder waya haina lead-isina.Kuenzaniswa newaya ine lead-ine solder, lead-isina solder waya ine kusvibiswa kushoma kune zvakatipoteredza uye muviri wemunhu pane ine lead-ine solder waya.Iyo gasi inogadzirwa panguvasolderingine chepfu, kusanganisira rosin oiri, zinc chloride uye mamwe gasi mhute.
3, Nzira yekudzivirira sei yemagetsi solder iron uye solder waya kubva kune chepfu
Chekutanga, mafekitari ePCB anofanirwa kushandisa RoHS tin waya kana achitengesa zvinhu nesimbi yemagetsi, uye kuita basa rakanaka rekudzivirira: semuenzaniso, kupfeka magurovhosi, masiki kana magasi egasi, teerera kufefetera munzvimbo yebasa, uve nekuneta kwakanaka. system, teerera kucheneswa mushure mebasa, uye kunwa mukaka kunogona kudzivirira mutobvu muchetura mu solder tin.
1. Kuti uzorore kwenguva yakati: kazhinji, iwe unofanirwa kuzorora kwemaminitsi gumi nemashanu kweawa kuti uderedze kuneta, nekuti kushorwa ndiko kwakaipisisa kana wakaneta.
2. Kusvuta zvishoma uye kunwa mvura yakawanda, iyo inogona kubvisa zvizhinji zvezvinhu zvinokuvadza zvakabatwa mukati mezuva.
3. Inwa muto webhinzi kana mvura yeuchi usati waenda kunorara, izvo zvinogona kuderedza moto uye kubatsira manzwiro ako, uye mung bhinzi nehuchi zvinogona kubvisa huwandu hwakawanda hwemutobvu nemwaranzi inotorwa.
4. Dzivisa mwaranzi uye edza kudzivisa kumirira mbozhanhare.
5. Iwe unogona kujekesa simbi yesimbi uye edza kushandisa PPD welding musoro.Neiyi nzira, kana tembiricha yasvikwa, unogona kushandisa mashoma welding mafuta uye rosin kuderedza kukuvadza kumuviri wako,
6. Kana mafuta ekusongesa nemarata achipfungaira, edza kukwesha denga nemusoro uri parutivi, uye edza kubata mweya wako paunokwesha mvura.
7. Shandisa mvura shoma yeTianna, shandisa doro rakawanda, uye geza zvakanyanya nedoro kwechinguva.Mhedzisiro yacho inenge yakafanana.
8. Geza maoko ako.
9. Geza usati warara.Edza kurara uye kumuka mangwanani-ngwanani kuti uve nechokwadi chekurara zvakakwana.Chero bedzi iwe wakarara zvakanaka, tsvina inogona kunyanya kubudiswa nemuviri wako.
10. Shanda nemasiki.
Nguva yekutumira: Kubvumbi-12-2022