Kho cov kauj ruam ntawm hluav taws xob soldering hlau
Thaum siv hluav taws xob soldering hlau rau vuam ua hauj lwm, yog hais tias lub lag luam tsis yog standardized, nws yog ib qho yooj yim rau malfunction, yog li ntawd nws yog tsim nyog los paub ib co kev ua hauj lwm kom raug, uas yog hais tias, thaum siv ib tug hluav taws xob soldering hlau rau welding, koj yuav tsum tau ua tib zoo xav txog tej yam kev khiav hauj lwm txoj kev, uas yog yuav tsum tau. paub qee qhov tshwj xeeb vuam cov kauj ruam, thiaj li tsis mus Raws li ua rau qee qhov kev phom sij tsis tsim nyog lossis kev phom sij zais. Cia kuv qhia qhov tseeb vuam cov kauj ruam ntawm hluav taws xob soldering hlau rau cov phooj ywg:
Cov khoom sib txawv ntawm cov khoom siv sib txawv yuav tsum tau ua haujlwm sib txawv ntawm cov hlau soldering. Thaum txiav txim siab qhov kub ntawm cov hlau taub hau, koj tuaj yeem kov cov hluav taws xob soldering hlau rau rosin. Yog tias cov hlau nplaum ua lub suab "squeak" thaum nws kov cov rosin, nws txhais tau hais tias qhov kub thiab txias yog; Yog tias tsis muaj suab nrov, tab sis cov rosin tuaj yeem ua rau me ntsis yaj, nws txhais tau hais tias qhov kub thiab txias yog qis. ; Yog hais tias lub taub hau ntawm cov hlau soldering tawm ntau cov pa luam yeeb sai li sai tau thaum nws kov cov rosin, nws txhais tau hais tias qhov kub thiab txias heev.
1. Melt ib tug me me ntawm solder thiab rosin nyob rau hauv lub ntsis ntawm lub soldering hlau, thiab dlhos lub taub hau ntawm soldering hlau thiab solder hlau nyob rau hauv lub solder sib koom tib lub sij hawm.
2. Ua ntej cov flux ntawm lub taub hau ntawm cov hlau soldering tau evaporated, kov lub taub hau ntawm cov hlau thiab cov hlau nplaum rau ntawm qhov sib koom ua ke tib lub sijhawm, thiab pib yaj lub solder.
3. Thaum lub solder infiltrates tag nrho cov solder joint, tshem tawm cov soldering hlau thiab solder hlau nyob rau tib lub sij hawm los yog tshem tawm cov tin hlau ua ntej, thiab ces tawm lub soldering hlau taub thiab solder hlau tom qab lub solder joint yog plump thiab zoo nkauj. Cov txheej txheem vuam feem ntau haum rau 2 mus rau 3 vib nas this. Thaum soldering integrated circuits, tus nqi ntawm solder thiab flux yuav tsum nruj me ntsis tswj. Txhawm rau kom tsis txhob muaj kev puas tsuaj rau kev sib xyaw ua ke vim qhov tsis zoo ntawm cov hluav taws xob hluav taws xob hluav taws xob los yog cov hluav taws xob hluav taws xob ntawm lub tshuab hluav taws xob sab hauv rau lub plhaub, hauv kev siv tswv yim, cov txheej txheem ntawm kev tshem tawm lub hwj chim ntsaws ntawm cov hluav taws xob soldering hlau feem ntau yog siv rau solder thaum nws kub.
4. Thaum welding, xyuas kom meej tias txhua qhov sib txuas yog ruaj khov thiab sib cuag zoo. Lub ntsiab lus tin yuav tsum ci, du thiab tsis muaj burrs, thiab tus nqi ntawm cov tin yuav tsum yog nruab nrab. Lub tin thiab cov khoom yuav tsum tau welded yog ruaj khov, thiab yuav tsum tsis txhob muaj kev vuam cuav lossis cuav vuam. False welding txhais tau hais tias tsuas yog ib qho me me ntawm cov tin yog welded ntawm qhov sib koom ua ke, ua rau kev sib cuag tsis zoo thiab tsis sib xws. False welding txhais tau hais tias nws zoo li welded rau saum npoo, tab sis nws tsis yog welded. Qee zaum cov hlau lead tuaj yeem rub tawm los ntawm kev sib koom ua ke los ntawm kev rub tawm ntawm tes.
5. Rau cov ntaub ntawv uas tsis yooj yim rau welding, cov txheej txheem ntawm plating ua ntej thiab ces vuam yuav tsum tau saws. Piv txwv li, rau txhuas qhov chaw uas tsis yooj yim rau welded, qhov saum npoo tuaj yeem plated nrog ib txheej ntawm tooj liab lossis nyiaj, thiab tom qab ntawd welded. Txoj kev tshwj xeeb yog ntxiv qee qhov CuSO4 (tooj liab sulfate) lossis AgNO3 (silver nitrate) rau hauv dej los npaj cov tshuaj nrog cov concentration ntawm li 20 feem pua. Tom qab ntawd muab cov paj rwb ntub dej nrog cov tshuaj saum toj no rau ntawm cov khoom siv txhuas txhuam polished nrog cov ntawv xuab zeb zoo, lossis ncaj qha rau hauv cov khoom txhuas hauv cov tshuaj. Vim qhov kev hloov pauv ntawm cov tooj liab ions lossis nyiaj ions hauv cov tshuaj thiab txhuas, tom qab li 20 feeb, cov txheej nyias nyias ntawm cov xim hlau lossis cov nyiaj yuav muab tso rau saum npoo ntawm cov txhuas daim. Siv ib daim txhuam cev los nqus cov tshuaj ntawm cov txhuas daim, thiab ci hauv qab lub teeb kom txog thaum lub npoo qhuav tag. Tom qab ua tiav cov haujlwm saum toj no, siv cov tshuaj cawv nrog rosin rau nws, thiab tom qab ntawd nws tuaj yeem ncaj qha welded. Thiab txoj kev no kuj tseem siv tau rau cov hlau thiab qee cov alloys uas tsis yooj yim rau vuam. Cov tshuaj yuav tsum tau npog thiab khaws cia rau hauv qhov chaw txias tom qab siv. Thaum cov concentration ntawm cov tshuaj txo nrog qhov nce ntawm cov kev siv, nws yuav tsum tau rov npaj dua. Cov tshuaj yog corrosive rau ib qho twg, thiab yuav tsum tau sim kom tsis txhob sib cuag nrog daim tawv nqaij los yog lwm yam khoom.
