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PCB板产生焊接缺陷的原因

文章出处:   责任编辑:杨海英   作者:   发布时间:2018-06-28 10:14:42    点击数:-   【

pcb是现代电子不可缺少的部件,是电子元器件电气连接的载体。金籁科技一体成型电感高频变压器免费漫画下载也广泛应用在pcb板上。随着电子技术的不断发殿,PCB的密度也越来越高,从而对焊接的工艺要求也越来越多,因此,必须分析和判断出影响PCB焊接质量的因素,找出其焊接缺陷产生的原因,这样才能有针对性的改进,从而提升PCB板的整体质量。下面跟金籁科技小编一起来看一下PCB板产生焊接缺陷的原因吧!

1、电路板孔的可焊性影响焊接质量

dianlubankongkehanxingbuhao,jianghuichanshengxuhanquexian,yingxiangdianluzhongyuanjiandecanshu,daozhiduocengbanyuanqijianheneicengxiandaotongbuwending,yinqizhenggedianlugongnengshixiao。

yingxiangyinshuadianlubankehanxingdeyinsuzhuyaoyou:

免费漫画下载 (1)hanliaodechengfenhebeihanliaodexingzhi。hanliaoshihanjiehuaxuechuliguochengzhongzhongyaodezuchengbufen,tayouhanyouzhuhanjidehuaxuecailiaozucheng,changyongdedirongdiangongrongjinshuweisn-pbhuosn-pb-ag.qizhongzazhihanliangyaoyouyidingdefenbikongzhi,yifangzazhichanshengdeyanghuawubeizhuhanjirongjie。hanjidegongnengshitongguochuandireliang,quchuxiushilaibangzhuhanliaorunshibeihanbandianlubiaomian。yibancaiyongbaisongxiangheyibingchunrongji。

免费漫画下载 (2)hanjiewenduhejinshubanbiaomianqingjiechengduyehuiyingxiangkehanxing。wenduguogao,zehanliaokuosansudujiakuai,cishijuyouhengaodehuoxing,huishidianlubanhehanliaorongrongbiaomianxunsuyanghua,chanshenghanjiequexian,dianlubanbiaomianshouwuranyehuiyingxiangkehanxingcongerchanshengquexian,zheixiequexianbaokuoxizhu、xiqiu、kailu、guangzedubuhaodeng。

2、翘曲产生的焊接缺陷

dianlubanheyuanqijianzaihanjieguochengzhongchanshengqiaoqu,youyuyinglibianxingerchanshengxuhan、duanludengquexian。qiaoquwangwangshiyouyudianlubandeshangxiabufenwendubupinghengzaochengde。duidadepcbyouyubanzishenzhongliangxiazhuiyehuichanshengqiaoqu。putongdepbgaqijianjuliyinshuadianlubanyue0.5mm,ruguodianlubanshangqijianjiaoda,suizhexianlubanjiangwenhouhuifuzhengchangxingzhuang,handianjiangzhangshijianchuyuyinglizuoyongzhixia,ruguoqijiantaigao0.1mmjiuzuyidaozhixuhankailu。

3、电路板的设计影响焊接质量

zaibujushang,dianlubanchicunguodashi,suiranhanjiejiaorongyikongzhi,danyinshuaxiantiaozhang,zukangzengda,kangzaoshengnenglixiajiang,chengbenzengjia;guoxiaoshi,zesanrexiajiang,hanjiebuyikongzhi,yichuxianxianglinxiantiaoxianghuganrao,ruxianlubandedianciganraodengqingkuang。yinci,bixuyouhuapcbbansheji:

免费漫画下载 (1)suoduangaopinyuanjianzhijiandelianxian、jianshaoemiganrao。

(2)zhongliangdade(ruchaoguo20g)yuanjian,yingyizhijiaguding,ranhouhanjie。

免费漫画下载 (3)fareyuanjianyingkaolvsanrewenti,fangzhiyuanjianbiaomianyoujiaodadeδtchanshengquexianyufangong,reminyuanjianyingyuanlifareyuan。

(4)yuanjiandepailiejinkenengpingxing,zheiyangbudanmeiguanerqieyihanjie,yijinxingdapiliangshengchan。dianlubanshejiwei4∶3dejuxingzuijia。daoxiankuandubuyaotubian,yibimianbuxiandebulianxuxing。dianlubanzhangshijianshoureshi,tongborongyifashengpengzhanghetuoluo,yinci,yingbimianshiyongdamianjitongbo。

免费漫画下载 zongheshangshu,weinengbaozhengpcbbandezhengtizhiliang,zaizhizuoguochengzhong,yaocaiyongyouliangdehanliao、gaijinpcbbankehanxingyijijiyufangqiaoqufangzhiquexiandechansheng。

本文由好电感金籁造的金籁科技转载发表,希望能够帮助大家了解PCB板。更多资讯尽在金籁科技官方网站www.nhadathanoi247.com。金籁科技20年专注一体成型电感、高频变压器生产,如您感兴趣,可拨打400-114-9558,或联系客服QQ2127382916