Tsanangudzo
Flux: Chinhu chemakemikari chinogona kubatsira uye kukurudzira maitiro ekugadzira, uye ine inodzivirira uye inodzivirira kuita kwe oxidation. Flux inogona kukamurwa kuita yakasimba, mvura uye gasi. Inonyanya kusanganisira "kubatsira kupisa conduction", "kubvisa okisijeni", "kuderedza kushushikana kwechinhu chiri kusungirirwa", "kubvisa mavara emafuta pamusoro pechinhu chiri kugadzirwa, kuwedzera nzvimbo yewelding", uye "kudzivirira reoxidation" . Pakati pezvinhu izvi, iwo maviri anonyanya kukosha mabasa ndeaya: "kubvisa okisidhi" uye "kuderedza kusawirirana kwepamusoro pechinhu chiri kusungirirwa".
Sarudzo yekuyerera Basa rekuyerera ndere kuvandudza mashandiro ewelding uye kuwedzera kusimba kwewelding. Flux inogona kubvisa maokisisa pamusoro pesimbi uye kudzivirira kuti irege kuramba ichiwedzera oxidize, inosimudzira chiitiko che solder uye simbi pamusoro, nekudaro ichiwedzera wetting kugona uye kunamatira.
Flux inosanganisira yakasimba asidhi inoyerera, isina kusimba asidhi inoyerera, isina kwayakarerekera flux uye mamwe marudzi. Inowanzoshandiswa fluxes kune vashandi vemagetsi inosanganisira rosin, rosin solution, solder paste uye solder mafuta, nezvimwewo. Rudzi rwavo runoshanda runoratidzwa mutafura, uye vanogona kusarudzwa zvine musoro maererano nezvinhu zvakasiyana-siyana. Solder paste uye solder oiri zvinoodza uye hazvigone kushandiswa kutengesa zvinhu zvemagetsi uye mabhodhi edunhu. Mushure mekutengesa, iyo yakasara solder paste uye solder mafuta inofanira kucheneswa. Rosin inofanirwa kushandiswa se flux kana kupinza mapini ezvikamu. Kana iyo yakadhindwa yedunhu bhodhi yakaputirwa nerosin solution, hapana flux inodiwa paunenge uchitengesa zvikamu.
Kune vagadziri, hapana nzira yekuyedza kuumbwa kweiyo flux. Kana iwe uchida kuziva kana iyo flux solvent yakagadziriswa, unogona kungoyera iyo chaiyo giravhiti. Kana iyo chaiyo giravhiti ichiwedzera zvakanyanya, zvinogona kugumiswa kuti iyo solvent yakanyungudika.
Pakusarudza flux, kune anotevera mazano evagadziri:
Chekutanga, kunhuwidza kunhuhwirira kwekutanga kuona kuti rudzii rwe solvent inoshandiswa. Semuenzaniso, methanol ine kunhuhwirira kudiki asi inokachidza zvakanyanya, isopropyl doro rine kunhuhwirira kwakanyanya, uye ethanol ine kunhuhwirira kwakadzikama. Kunyange zvazvo mutengesi achigona kushandisawo mushonga wakasanganiswa, kana mutengesi akakumbirwa kuti ape mushumo wekunyora, ivo vanongopa; zvisinei, mutengo we isopropyl doro inenge 3-4 nguva ye methanol. Kana mutengo wacho wakaderedzwa zvakanyanya nemutengesi, zvingava zvakaoma kutaura zviri mukati
Chechipiri, sarudza muenzaniso. Iyi zvakare ndiyo nzira yakakosha kune vakawanda vagadziri vekusarudza flux. Paunenge uchisimbisa sampuli, mutengesi anofanira kukumbirwa kuti ape yakakodzera parameter mushumo uye oienzanisa nemuenzaniso. Kana sampuli yakasimbiswa OK, iyo inotevera kuendesa kunofanirwa kuenzaniswa neyekutanga paramita. Kana zvisizvo zvikaitika, giravhiti chaiyo, kukosha kwe acidity, nezvimwe zvinofanirwa kuongororwa. Huwandu hwehutsi hunogadzirwa nekuyerera zvakare chiratidzo chakakosha.
Chechitatu, musika wekuyerera unosanganiswa. Paunosarudza, iwe unofanirwa kuve nekunzwisisa kwakajeka kwezvikwaniriso zvemupi. Kana zvichidikanwa, unogona kuenda kumugadziri kuti uone fekitori. Kana iri isina kurongeka flux inogadzira, inotya zvakanyanya iyi seti. Maitiro ekushandisa iyo flux Usati waunza nzira yekushandisa, ngatitaure nezve kupatsanurwa kwekuyerera. Inogona kukamurwa kuita mutsara we-non-polar flux. Iyo inotengeswa pamusika inonzi "solder oil". Iva nechokwadi chekuichenesa mushure mekushandisa, kana zvisina kudaro zviri nyore kukanganisa uye kukuvadza chinhu chakasungwa.
Imwe mhando ndeye organic series flux, inogona kukurumidza kuora uye kusiya zvisaririra zvisingaite. Imwe mhando ndeye resin active series flux. Rudzi urwu rwekuyerera haruparadzi, runodzivirira zvakanyanya uye rune kugadzikana kwenguva refu. Iyo inonyanya kushandiswa ndeye kuwedzera activator kune rosin flux.
Kazhinji kutaura, nzira yekushandisa aluminium flux iri nyore. Kutanga, pukuta doro pane weld kuti ubvise mavara emafuta, uye ipapo iwe unogona kuisa iyo flux kumusoro kuti isungirwe, uye ipapo iwe unogona weld. Asi iwe unofanirwa kuyeuka kuichenesa mushure mekucheka, uye teerera kune yakachengeteka panguva yekushandiswa, uye usaite kuti ipinde mumuromo, mhuno, huro uye kubata ganda. Kana isiri kushandiswa, ingoisa chisimbiso uye woiisa munzvimbo inotonhorera uye ine mhepo.
Kiyi yekushambadzira maseketi nemarata mbariro ndeyekuchenesa nzvimbo inotengeswa, kupisa uye kunyungudutsa rosin panzvimbo inotengeswa kana kuisa flux pane chinhu chinotengeswa, uye wozoshandisa simbi yekunyungudutsa kuiisa nekuinangisa pane iyo poindi. kutengeswa. Kazhinji, rosin inoshandiswa kutengesa zvidimbu zvidiki, uye flux inoshandiswa kutengesa zvinhu zvakakura. Rosin inoshandiswa pamapuranga edunhu, uye flux inoshandiswa kune imwechete-chidimbu soldering.
Mirayiridzo:
1. Hupenyu hwesherufu yakavharwa hafu yegore. Ndapota usaomesa chigadzirwa. Iyo yakanyanya kunaka yekuchengetera tembiricha: 18 ℃-25 ℃, yakanakisa kuchengetedza mwando: 75% -85%.
2. Mushure mekunge iyo flux yakachengetwa kwenguva yakareba, simba rayo chairo rinofanira kuyerwa risati rashandiswa, uye giravhiti chaiyo inofanira kugadziridzwa kune yakajairika nekuwedzera diluent.
3. Solvent flux ikemikari inobvira moto. Inofanirwa kushandiswa munzvimbo inofefetera zvakanaka, kure nemoto, uye kudzivirira zuva rakananga.
4. Paunenge uchishandisa flux mutangi rakavharwa, chenjerera kugadzirisa zvine musoro vhoriyamu yekupfapfaidza uye kupfapfaidza kudzvanywa zvinoenderana nekuita kwewave crest furnace uye maitiro echigadzirwa.
5. Kana iyo flux ichiramba ichiwedzerwa mutangi yakavharwa, chidimbu chiduku che sediment chichaunganidza pasi petangi rakavharwa. Iyo yakareba nguva, iyo yakawanda sediment ichaungana, izvo zvinogona kukonzera iyo spray system ye wave crest furnace kuvharika. Kuti udzivise sediment kuvharira iyo yekupfapfaidza system ye wave crest furnace, inokanganisa huwandu hwekupfapfaidza uye kupfapfaidza mamiriro uye kukonzera PCB solder matambudziko, zvinodikanwa kugara uchichenesa uye kuchengetedza iyo yekupfapfaidza system senge rakavharwa tangi uye sefa. Zvinokurudzirwa kuzviita kamwe pavhiki uye kutsiva flux ne sediment pasi petangi rakavharwa.
Nezve manual soldering mashandiro:
1. Edza kusadira yakawanda flux panguva imwe chete, kuwedzera uye kuwedzera maererano nehuwandu hwekugadzirwa;
2. Wedzera 1/4 diluent paawa imwe neimwe, uye wedzera huwandu hwakakodzera hwekuyerera kwemaawa maviri ega ega;
3. Pamberi pekudya kwemasikati uye kwemanheru kuzorora kana pakumisa kushandiswa, edza kuvhara kuyerera;
4. Usati wabva kubasa usiku, nyatsodurura flux mutireyi zvakare mubhaketi uye uchenese tireyi nemucheka wakachena wekushandisa;
5. Paunenge uchishandisa flux yakashandiswa nezuro, wedzera 1/4 diluent uye kanopfuura kaviri chiyero chitsva chisina kushandiswa, kuitira kuti iyo inoshandiswa nezuro inogona kushandiswa zvakakwana kudzivisa tsvina.
6. Paunenge uchiisa flux nepfapfaidzo kana foaming process, ndapota gara uchiongorora kudzvanywa kwemhepo kwemhepo compressor. Zvakanakisa kusefa hunyoro neoiri mumhepo nemapurogiramu anopfuura maviri akajeka ekuongorora, uye shandisa yakaoma, isina mafuta, uye isina mvura yakachena yakamanikidzwa mweya kudzivirira kukanganisa chimiro uye kuita kweiyo flux.
7. Ngwarira kugadziridzwa kwepfapfaidzo paunenge uchipfapfaidza, uye ita shuwa kuti iyo inoyerera yakagoverwa zvakaenzana paPCB.
8. Iyo tin wave yakati sandara, PCB haina kuremara, uye imwe yunifomu yepamusoro mhedzisiro inogona kuwanikwa.
9. Kana iyo PCB yakavharwa yakanyanyisa oxidized, tapota ita zvakakodzera pre-kurapa kuti uone kunaka uye solderability.
10. Iyo isina kuvharwa flux inofanira kuvharwa isati yachengetwa. Usadurure iyo yakashandiswa flux kumashure kwekutanga kurongedza kuti uve nechokwadi chekuchena kwemvura yekutanga.
11. Iyo yakaraswa flux inoda kubatwa nemunhu akazvipira uye haigone kukandwa pakuda kusvibisa nharaunda.
12. Panguva yekushanda, bhodhi risina chinhu uye rutsoka rwezvikamu zvinofanira kudzivirirwa kubva pakusvibiswa nedikita, mavara emaoko, chiso chekrimu, mafuta kana zvimwe zvinhu. Pamberi pekuputira kwapera uye kusina kuoma zvachose, tapota chengetai yakachena uye musaisvibisa nemaoko enyu. 13. Kuwanda kwekuputira kunoenderana nezvinodiwa zvechigadzirwa. Huwandu hunokurudzirwa hwekuyerera kwemabhodhi ane-sided board ndeye 25-55ml/min, uye huwandu hunokurudzirwa hwekuyerera kwemabhodhi ane mativi maviri ndeye 35-65ml/min.
14. Kana iyo inoyerera ichishandiswa nekupupa maitiro, zvinodikanwa kudzora iyo chaiyo giravhiti yekuyerera kudzivirira chimiro uye kuita kweiyo flux kubva pakukanganiswa nekuputika kwezvinonyungudutsa mukuyerera, kuwedzera kweiyo chaiyo giravhiti, uye kuwedzera kwe flux concentration. Zvinokurudzirwa kuti uone kukweshera kweiyo flux mushure memaawa maviri ekupupa. Kana simba rinokwevera zvinhu pasi richiwedzera, wedzera mwero wakakodzera we diluent kuti uigadzirise. Iyo yakakurudzirwa huwandu hweiyo chaiyo giravhiti kudzora ndeye ± 0.01 yeiyo chaiyo giravhiti yeiyo yekutanga mvura yakatarwa. 15. Kupisa kwekutanga kwekupisa, tembiricha inokurudzirwa yepasi pebhodhi-rimwe divi i75-105 ℃ (tembiricha inokurudzirwa pamusoro pebhodhi redivi rimwe i60-90 ℃), uye tembiricha inokurudzirwa. nokuti pasi pebhodhi rine mativi maviri i85-120 ℃ (tembiricha inokurudzirwa pamusoro pebhodhi rine mativi maviri i70-95 ℃).
16. Nezvimwe zvidziviriro, tapota tarisa kune Material Safety Specification Sheet (MSDS) yakapiwa nekambani yedu.
Xinfa welding midziyo ine hunhu hwemhando yepamusoro uye mutengo wakaderera. Kuti uwane ruzivo, ndapota shanya:Welding & Cutting Manufacturers - China Welding & Cutting Factory & Suppliers (xinfatools.com)
Nguva yekutumira: Aug-29-2024
