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八温区回流焊各温区温度设置
发布时间:2021-03-18

八温区回流焊各温区的温度设置,是跟据回流焊四大温区(预热区、恒温区、回流焊接区、冷却区)的作用原理来设置的,其实不管是八温区、十温区还是十二温区的回流焊,都要遵循这个基本的原理。当然还要根据自己生产现场的实际情况进行调节,比如用的是RTS还是RSS曲线?生产不同的产品,使用不同的原材料(PCB基板的材料、厚度、材质、贴片的类型等),使用不同的焊膏,温度设置都会有所不同。下面我们对回流焊过程剖析

YUREQUDEZUOYONGSHIWEILESHIXIGAOXIANJINGGUOYURETIGAOHUOXING,BIMIANZAIJINXIDESHIGEYINWEIJIJUSHENGWENYINQICHANPINBULIANG。YUREQUDEWENDUCONGSHIWEN~150℃,WENDUTISHENGDESULVYINGGAIKONGZHIZAI2℃/s ZUOYOU,YUREQUSHENGWENSHIJIANKONGZHIZAI60~150s。

HENGWENQUDEZUOYONGSHIRANGHUILIULUNEIBUGEYUANQIJIANDEWENDUZHUJIANBAOCHIWENDING,RANGLUNEIDEYUANQIJIANZAIHENGWENQULIYOUZUGOUDESHIJIANLAIJIANGDIWENCHA。SHIBUTONGDAXIAODEYUANJIANWENDUQUYUYIZHI,BINGRANGHANXIGAOLIMIANDEZHUHANJICHONGFENDEDAOHUIFA。HENGWENQUDEWENDUCONG150℃~200℃,YAOBAOCHIWENDUWENDINGHUANMANDESHANGSHENG,SHENGWENSULVXIAOYU1℃/s,SHENGWENSHIJIANKONGZHIZAI60~120s,YOUQIYAOZHUYIDESHI:HENGWENQUYIDINGYAOHUANMANDESHOURE,BURANJIYIDAOZHICHANPINHANJIECHUXIANPINZHIWENTI。

回流焊.jpg

DANGPCBBANJINRUHUILIUHANJIEQUSHI,LUTANGNEIWENDUXUNSUSHANGSHENGSHIHANXIGAORONGHUA,YETAIDEHANXIDUIYUANQIJIANXINGCHENGHANDIAN。ZAIHUILIUHANJIEQUWENDUSHEZHIDEBIJIAOGAO,SHILUTANGNEIWENDUXUNSUSHANGSHENGZHIFENGZHIWENDU,FENGZHIWENDUYIBANSHIYOUHANXIGAODERONGDIANWENDU、PCBJIBANHEYUANQIJIANDENAIREWENDUJUEDINGDE。HUILIUHANJIEQUDEWENDUCONG217℃~Tmax~217℃,ZHENGGEQUJIANBAOCHIZAI60~90s。RUGUOYOUBGADEHUA,FENGZHIWENDUYINGGAISHEZHIZAI240ZHI260DUYINEIBINGBAOCHI40MIAOZUOYOU。LINGWAIZAIHUILIUQUXUYAOZHUYIDESHI,HUILIUHANJIESHIJIANBUYAOTAIZHANG,YIMIANDUILUTANGZAOCHENGSUNSHANG,HUOZHEZAOCHENGPCBBANBEIKAOJIAOHUOYUANJIANGONGNENGBULIANGDENGWENTI。 

LENGQUEQUDEZUOYONGSHIRANGWENDUXIAJIANGSHIHANDIANNINGGU,LENGQUESULVDEKUAIMANHUIYINGXIANGHANDIANDEQIANGDU。RUGUOLENGQUEDESULVGUOMAN,HUIDAOZHIZAIHANJIEDIANCHUCHANSHENGGONGJINGJINSHUHUAHEWUHEDADEJINGLI,ZAOCHENGHANJIEDIANQIANGDUGUODI。ZHEIGEQUYUDEWENDUYOUTmax~180℃,LENGQUE75℃JIUKEYILE,WENDUXIAJIANGDESULVZUIHAOBUYAOCHAOGUO4℃/s。

八温区回流焊各温区温度设置还需要注意以下几点:

1、LUTANGNEIBUWENDUCONGSHIWENSHANGSHENGDAO250℃DESHIJIANBUNENGGAOYU6FENZHONG。

2、HUILIUHANLUTANGNEIDESHIJIWENDUHEXITONGSHEZHIDEWENDUSHIYOUWENCHADE,BENWENJIANYIDEWENDUQUXIANSHEZHIJINZUOWEICANKAO,JUTIHAIXUYAOGENJUXIGAOCHANGTIGONGDEWENDUQUXIANHEZIJICHANPINDESHIJIQINGKUANGZUOCHUXIANGYINGDEDIAOZHENG。


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