Dab tsi yog vim li cas rau yoj soldering tin txuas

Wave soldering yog cov txheej txheem ntawm kev sib cuag ncaj qha mus rau qhov chaw vuam ntawm lub rooj tsavxwm plug-in board nrog kub-kub kua tin, ua tiav lub hom phiaj ntawm vuam. Lub siab kub-kub kua tin tuav ib qho inclined nto thiab cov ntaub ntawv tsis zoo ib yam li cov phenomenon ntawm nthwv dej tsim los ntawm tshwj xeeb pab kiag li lawm. Yog li ntawd, nws yog hu ua "wave soldering", thiab nws cov khoom tseem ceeb yog lub solder sawb.

 

1. Qhov tshwm sim ntawm solder kev twb kev txuas tshwm sim los ntawm cov khoom siv pins tau ntev dhau lawm thaum lub sij hawm yoj soldering ntawm cov ntawv luam tawm Circuit Board. Thaum txiav cov pins tivthaiv rau kev ua haujlwm ua ntej, thov nco ntsoov tias qhov ntev ntawm cov khoom siv pins yog 1.5-2mm, uas yuav tsum tsis pub tshaj qhov siab no. Qhov tshwm sim tsis zoo no yuav tsis tshwm sim.

 

2. Vim yog cov txheej txheem ntau zuj zus tsim ntawm cov ntawv luam tawm Circuit Board thiab qhov sib txawv ntawm cov hlau lead, muaj qhov tshwm sim ntawm kev sib koom ua ke tom qab yoj soldering. Hloov cov qauv ntaub qhwv yog qhov kev daws teeb meem. Txo qhov loj ntawm cov ntaub qhwv ntsej muag, ua kom qhov ntev ntawm cov ntaub qhwv lub ntsej muag tawm ntawm yoj sab, ua kom cov dej ntws tawm, thiab txo cov hlau lead txuas ntxiv ntev kuj yog cov kev daws teeb meem.

 

3. Qhov tshwm sim ntawm tin bonding ntawm cov khoom siv pins tsim los ntawm infiltration ntawm molten tin mus rau saum npoo ntawm lub rooj tsavxwm luam tawm tom qab yoj soldering. Lub ntsiab yog vim li cas rau qhov tshwm sim yog hais tias lub puab txoj kab uas hla ntawm lub solder ncoo yog loj heev, los yog lub sab nraud txoj kab uas hla ntawm cov tivthaiv pins yog heev me me.

 

4. Wave soldering tshwm sim los ntawm ntau lub ncoo loj

 

5.Qhov tshwm sim ntawm kev sib txuas ntawm cov khoom siv pins tom qab yoj soldering tshwm sim los ntawm kev tsis zoo ntawm cov khoom siv pins.

 

Rlub caij

 

1. Qhov kub thiab txias ntawm cov flux yog siab dhau lossis qis dhau, feem ntau yog nruab nrab ntawm 100-110 degrees Celsius. Yog hais tias qhov kub ntawm preheating tsawg dhau, qhov kev ua haujlwm flux tsis siab

 

2. Yog tsis siv cov soldering flux los yog tsis txaus los yog tsis sib xws ntawm soldering flux, qhov nro ntawm cov tin nyob rau hauv lub xeev molten yuav tsis tso tawm, uas ua rau yooj yim soldering.

 

3. Kev kub tsis txaus preheating tuaj yeem ua rau cov khoom tsis muaj peev xwm ncav cuag qhov kub thiab txias. Thaum lub sij hawm vuam txheej txheem, vim lub siab kub nqus ntawm lub Cheebtsam, tsis zoo tin dragging yuav tshwm sim, uas ua rau cov tsim ntawm tin bonding; Nws tseem muaj peev xwm hais tias qhov kub ntawm lub cub tawg yog qis los yog qhov vuam ceev ceev heev.

 

4.Kev siv tsis sib xws ntawm flux

 

5. Qee cov ntaub qhwv los yog cov ceg tawv yog oxidized heev

 

6. Tsis muaj qhov thaiv kab thaiv uas tsim los ntawm cov ntaub qhwv ntawm cov ntawv luam tawm ntawm lub rooj tsavxwm, uas tau txuas nrog tom qab luam tawm nrog cov tshuaj txhuam. Los yog yog hais tias lub rooj tsavxwm Circuit Court nws tus kheej yog tsim los nrog ib tug solder barrier / choj, tab sis ib co los yog tag nrho cov ntawm nws ntog tawm thaum nws yog ua los ntawm cov khoom tiav, nws kuj yog ib qho yooj yim rau solder.

 

7. PCB dab dej thiab deforms thaum lub sij hawm cua sov, ua rau tin kev twb kev txuas.

 

Kev daws

1. Tswj qhov vuam kub. Qhov ntsuas kub ntawm cov ntawv luam tawm Circuit Board yuav tsum tsim nyog kom tsis txhob siab dhau lossis qis dhau. Yog tias qhov kub thiab txias dhau lawm, lub solder yog nquag kis; Yog tias qhov kub thiab txias qis dhau lawm, nws yuav tsis tuaj yeem ua kom tag nrho yaj thiab kho cov solder. Yog li ntawd, yuav tsum tau tswj qhov kub thiab txias thaum lub sij hawm vuam txheej txheem.

 

2. Tswj lub sijhawm vuam. Lub sij hawm welding kuj yuav tsum yog txoj cai. Yog hais tias lub sij hawm ntev dhau lawm, lub solder yuav kis tau. Yog hais tias lub sij hawm luv luv, lub solder yuav tsis kho kiag li. Yog li ntawd, nws yog ib qho tsim nyog yuav tsum nruj me ntsis tswj lub sijhawm vuam.

 

3. Ntxiv kev tiv thaiv. Hauv kev tsim cov laug cam, qee lub voj voog yuav tsum muaj qhov kub thiab txias, uas tuaj yeem ua rau muaj teeb meem kev sib txuas ntawm tin. Hauv qhov no, kev tiv thaiv tuaj yeem raug ntxiv los daws qhov teeb meem. Piv txwv li, ib daim ntaub thaiv hlau tuaj yeem npog thaum lub sij hawm vuam txheej txheem los tiv thaiv cov hlau los ntawm kev sib kis mus rau qhov chaw uas yuav tsum tsis txhob welded.

 

4. Tshawb xyuas qhov zoo ntawm cov pob qij txha. Tom qab vuam ntawm lub rooj tsavxwm Circuit Court ua tiav, nws yog ib qho tsim nyog yuav tsum tau ua tib zoo xyuas qhov zoo ntawm cov pob qij txha. Yog hais tias muaj teeb meem xws li solder overflow los yog tsis muaj zog solder pob qij txha, lawv yuav tsum tau kho kom raws sij hawm kom tsis txhob muaj teeb meem solder.