Nitrogen reflow soldering yog cov txheej txheem ntawm kev sau lub reflow chamber nrog cov pa roj nitrogen txhawm rau txhawm rau thaiv cov cua nkag mus rau hauv qhov cub reflow kom tiv thaiv oxidation ntawm cov khoom taw thaum lub sij hawm reflow soldering.Kev siv cov nitrogen reflow yog tsuas yog los txhim kho qhov zoo ntawm soldering, thiaj li hais tias cov soldering tshwm sim nyob rau hauv ib puag ncig uas tsis tshua muaj oxygen cov ntsiab lus (100 PPM) los yog tsawg dua, uas yuav zam tau qhov teeb meem ntawm oxidation ntawm cov khoom.Yog li qhov teeb meem tseem ceeb ntawm nitrogen reflow soldering yog los xyuas kom meej tias cov ntsiab lus ntawm cov pa oxygen tsawg npaum li qhov ua tau.
Nrog rau kev nce ntawm kev sib dhos ceev thiab qhov tshwm sim ntawm Fine pitch assembly technology, cov txheej txheem nitrogen reflow thiab cov khoom siv tau tsim, uas tau txhim kho cov khoom zoo thiab cov txiaj ntsig ntawm reflow soldering thiab tau dhau los ua cov kev taw qhia ntawm reflow soldering.Guangshengde los tham txog nitrogen reflow soldering muaj cov hauv qab no zoo.
(1) Kev tiv thaiv thiab txo cov oxidation.
(2) txhim kho lub zog ntawm cov tawv nqaij thiab ua kom lub ntsej muag nrawm.
(3) txo cov tiam ntawm cov pob tin, kom tsis txhob muaj kev sib txuas, kom tau txais kev vuam zoo dua.
Tab sis nws qhov tsis zoo yog qhov pom tseeb ntawm tus nqi, qhov nce ntawm tus nqi nrog cov nitrogen, thaum koj xav tau kom ncav cuag 1000ppm cov ntsiab lus oxygen hauv lub cub tawg nrog 50ppm cov ntsiab lus oxygen, cov ntsiab lus nitrogen dav dav yog los ntawm kev txhawb nqa online hom oxygen cov ntsiab lus analyzer. Lub hauv paus ntsiab lus ntawm kev ntsuas cov pa oxygen yog los ntawm cov pa oxygen cov ntsiab lus analyzer thawj zaug txuas los ntawm cov ntsiab lus nitrogen reflow soldering sau cov ntsiab lus, thiab tom qab ntawd sau cov pa roj, tom qab cov pa oxygen cov ntsiab lus analyzer test Cov ntsiab lus oxygen yog txheeb xyuas kom tau txais cov ntsiab lus nitrogen purity ntau.Nitrogen reflow soldering roj sau cov ntsiab lus muaj tsawg kawg yog ib qho, high-end nitrogen reflow soldering roj sau cov ntsiab lus muaj ntau tshaj peb, vuam cov khoom yuav tsum sib txawv ntawm qhov kev thov nitrogen yog lub ntiaj teb sib txawv.
Rau kev qhia txog nitrogen hauv reflow soldering, nws yog ib qho tsim nyog yuav tsum tau ua qhov kev ntsuam xyuas tus nqi, nws cov txiaj ntsig suav nrog cov khoom lag luam tawm los, kev txhim kho kom zoo, rov ua haujlwm lossis kho cov nqi txo, thiab lwm yam. Ib qho kev ua tiav thiab tsis sib haum xeeb feem ntau yuav qhia tias kev qhia txog nitrogen. tsis nce tus nqi kawg, ntawm qhov tsis sib xws, peb tuaj yeem tau txais txiaj ntsig los ntawm nws, cov kua nitrogen tam sim no, muaj cov tshuab nitrogen, xaiv nitrogen kuj hloov tau ntau dua.
Ntau npaum li cas PPM ntawm oxygen yog tsim nyog nyob rau hauv ib lub qhov cub nitrogen?
Cov ntaub ntawv cuam tshuam tau sib cav tias qis dua 1000PPM infiltration yuav zoo heev, 1000-2000PPM yog feem ntau siv, tab sis qhov tseeb siv feem ntau ntawm cov txheej txheem siv 99.99% uas yog 100PPM nitrogen, thiab txawm tias 99.999% uas yog 10PPM, thiab qee cov neeg siv khoom. txawm nyob rau hauv kev siv 98% ntawm cov nitrogen uas yog 20,000PPM.lwm nqe lus OSP txheej txheem, ob-sided welding, nrog PTH yuav tsum tau qis dua 500PPM, thaum qhov nce ntawm cov monuments sawv yog tshwm sim los ntawm tsis zoo luam ntawv raug.
Feem ntau ntawm cov furnaces siv niaj hnub no yog cov cua kub yuam kev, thiab nws tsis yog ib qho yooj yim txoj hauj lwm los tswj kev noj cov nitrogen nyob rau hauv xws li furnaces.Muaj ntau ntau txoj hauv kev los txo cov nqi nitrogen noj: ib qho yog txo qhov qhib qhov chaw ntawm kev xa tawm thiab xa tawm ntawm lub cub tawg, nws yog ib qho tseem ceeb uas yuav tsum tau siv cov partitions, curtains los yog cov cuab yeej zoo sib xws los thaiv qhov chaw ntawm kev ntshuam thiab xa tawm ntawm qhov chaw. uas tsis yog siv, lwm qhov yog siv lub hauv paus ntsiab lus uas cov txheej txheem kub nitrogen yog sib zog dua li huab cua thiab tsis tshua muaj kev sib xyaw, thaum tsim lub cub tawg ua kom lub cua sov chamber tshaj qhov ntshuam thiab xa tawm yog siab, kom lub cua sov chamber tsim. ib txheej txheej nitrogen, uas txo cov nyiaj nitrogen them nyiaj thiab txo cov nitrogen thiab ua kom yooj yim sib xyaw.Qhov no txo qhov nyiaj ntawm nitrogen them nyiaj thiab tswj qhov xav tau purity.
Post lub sij hawm: Aug-23-2022