Dab tsi yog vim li cas rau ntau tshaj tin slag nyob rau hauv cov txheej txheem soldering?
Thaum lub sij hawm tag nrho cov txheej txheem yoj soldering, tin bar yuav tsim tin slag, tab sis qee zaum yuav muaj ntau tin slag. Lub sijhawm no, peb yuav tsum tau saib xyuas seb puas muaj teeb meem. Cov nram qab no solder paste manufacturers yuav piav qhia rau koj:
Lead-dawb ib puag ncig tus phooj ywg tsis muaj hlau lead-dawb tin bar
Ua ntej tshaj plaws, peb yuav tsum paub qhov txawv ntawm qhov tin dross uas feem ntau tshwm sim yog qhov qub tin dross. Nyob rau hauv ib txwm muaj xwm txheej, tin dross nyob rau hauv daim ntawv ntawm cov hmoov dub yog nyob rau hauv ib txwm lub xeev, thaum tin dross nyob rau hauv daim ntawv ntawm tofu yog txawv txav. Rau hom teeb meem no, peb txiav txim siab tias muaj cov teeb meem hauv qab no:
1. Nyob rau hauv cov ntaub ntawv no, qhov loj tshaj yog vim li cas yog ib co teeb meem ntawm yoj rauv ntawm lub yoj soldering khoom. Ntawm lawv, kev tsim ntawm ntau lub nthwv dej rauv tsis zoo li qhov zoo tagnrho, lub nthwv dej siab kuj siab, qhov kev ncua deb ntawm lub ncov platforms yog qhov dav dhau, thiab qhov kev ncua deb ntawm ob lub nthwv dej rauv yog nyob ze. Nyob ze heev, tib lub sijhawm, lub twj tso kua mis teb yog siv rau hauv cov khoom siv, thiab lwm yam, cov no yog cov laj thawj uas yuav ua rau tin slag nyob rau hauv ib puag ncig. Thaum lub ncov nthwv dej siab heev, qhov sib txawv ntawm qhov kub thiab txias yuav nce ntxiv thaum lub sij hawm tag nrho cov txheej txheem ntawm solder ntog los ntawm lub ncov mus rau hauv qab, thiab solder yuav sib tov nrog huab cua, uas yuav ua rau oxidation los yog semi-solution ntawm solder, ua rau cov tsos ntawm tin slag. nug tau. Yog tias qhov kev tswj xyuas ntawm lub twj tso kua mis tsis ua tiav, cov tin slag txuas ntxiv mus rau hauv lub cub tawg, thiab cov saw hlau ntawm lub voj voog yuav ua rau muaj teeb meem nrog cov tin slag.
2. Qhov kub thiab txias yog qhov tsawg, qhov ntsuas kub ntawm yoj soldering yog qhov qis, feem ntau 280 degree C ± 5 degree C, thiab qhov kub no yog qhov kub qis tshaj plaws tsim nyog rau cov txheej txheem hloov pauv ntawm cov solder, thiab nws yog qhov nyuaj rau kev ua tiav. qhov kub zoo yog tias qhov ntsuas kub qis dua. Av melting, indirectly ua rau ntau tin slag.
3. Lub sij hawm tinning uas haum tshaj plaws yog ploj lawm. Nyob rau hauv cov txheej txheem yoj soldering, lub sij hawm rau ntxiv tin strips yog ib qho tseem ceeb heev. Thaum nws yog qhov tsim nyog, qhov kev ncua deb ntawm lub tin nto thiab lub ncov yog qhov luv tshaj plaws.
4. Lub tin slag nyob rau hauv lub cub tawg yog tsis ntxuav tam sim ntawd. Txawm hais tias cov tin slag raug pov tseg los ntawm qee lub sijhawm kuj yog qhov laj thawj tseem ceeb rau qhov teeb meem. Muaj ntau ntau cov tin slags nyob rau hauv lub cub tawg, uas yuav ua rau lub solder poob los ntawm lub ncov mus poob rau hauv lub cub tawg sai li sai tau, uas yog feem ntau txwv nyob rau hauv lub tin slag, uas ua rau tsis sib xws cua sov, uas ua rau ntau tin slag. .
5. Txawm hais tias lub nthwv dej cua sov tau kho txhua hnub, lub nthwv dej cua sov feem ntau tsis kho, uas yuav ua rau muaj qhov siab ntawm impurities nyob rau hauv lub cub tawg, uas yuav ua rau ntau tin slag.
Cov saum toj no yog cov laj thawj tseem ceeb rau qhov loj ntawm tin slag hauv qhov cub. Kuv vam tias nws yuav pab tau koj. Jiajinyuan yog ib lub tuam txhab uas muaj kev sib koom tes zoo nrog cov tuam ntxhab ntawm cov khoom siv hluav taws xob. Nyob rau tib lub sijhawm, nws kuj tsim cov vuam hlau, vuam pas nrig, cov tshuaj txhuam hniav, thiab cov tshuaj txhuam hniav rau lwm cov lag luam; ntau yam kev vam meej ntawm cov khoom siv raw khoom tshawb fawb thiab kev txhim kho, thiab tag nrho lub zog ua kom muaj kev lag luam zoo thiab kev muag khoom ncaj ncees.
