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        真空钎焊产品常见缺陷及预防措施

        作者:蔡东俊 人气:225550 日期:2021-04-02 09:36:16
         
         
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        真空钎焊常见缺陷及预防措施
             

        真空钎焊缺陷描述
        真空钎焊缺陷目视
        真空钎焊缺陷预防措施
        真空钎焊缺陷目视解决措施

         

        真空钎焊炉内炉渣太多,掉落在产品表面

        见真空钎焊图片 

        增加烘炉频次

        真空钎焊炉烘炉频次1/半月

        产品表面喷铜,粘焊模

         

        见真空钎焊图片 

        焊模表面刷阻焊剂

         

        见真空钎焊图片

        真空钎焊焊模有硬粒,表面隐伤

         

        见真空钎焊图片

        装配前用刷子将焊模清理干净

         

        见真空钎焊图片

        铜未熔化,表面起鼓

         

         

         

        见真空钎焊图片

         

         

        真空钎焊前仔细检查真空钎焊炉上下门、屏口、碳棒

         

        见真空钎焊图片

        装配时夹紧环靠在芯片组件上,造成粘夹紧环

         

        见真空钎焊图片

        装配时必须保证夹紧环与法兰、芯片组件间有一定的间隙

         

        见真空钎焊图片

        产品组件配合间隙不好,造成白边

         

        见真空钎焊图片

        产品装配时保证间隙≤0.07

        见真空钎焊图片

         

        阻焊剂未干,钎焊后表面发黑

        见真空钎焊图片

         

        阻焊剂必须待干燥后方可装夹

         

        见真空钎焊图片

        真空钎焊焊模不平,造成片闭

         

        见真空钎焊图片

        必须保证真空钎焊焊模垫块平整度(用直尺检查)

         

        见真空钎焊图片

        真空钎焊炉内分压压力不足,产品表面喷铜

        见真空钎焊图片

         

        保证真空钎焊炉内分压压力在200250Pa之间

        见真空钎焊图片

         

         

        东俊真空钎焊工作室
        地址:江苏省扬州市维扬路349号
        邮政编码:225000
        联系人: 蔡东俊
        SKYPE:jsyzcdj
        联系手机:13905275926
        QQ:649200691
        MSN:jsyzcdj@126.com
        E-mail: jsyzcdj@126.com
        网址:http://www.www.rebekamusic.com


        新加坡联系地址:10 Anson Road #05-17
        联系人: Feng Guo An
        联系电话:+65-6756 3629
        手机:+0065-6756 3629
        传 真: +0065-6754 8382
        电子邮件:fengga@el.sg

        德国联系地址: Ringenkuhler Straße 26
        34298 Helsa
        联系人:李向珍
        联系电话: 004956049180277
        手机: 004956049180277
        传 真: 004956049180278
        电子邮件info@china-market-expertise.de

         

        www.www.rebekamusic.com

         

        Common defects and preventive measures of vacuum brazing products

         

        Vacuum brazing defect description

         

        Vacuum brazing defect visual

         

        Vacuum brazing defect prevention measures

         

         vacuum brazing defect visual solution

        Too much slag in vacuum brazing furnace, falling on the surface of the product

         

        Increase frequency of  empty furnace heating (without products)

        Vacuum brazing furnace heating frequency 1 / half months

        Product surface spray copper, stick welding mold

        Welding surface brush resistance flux

        Vacuum brazing die has hard grain, surface hidden injury

         

        Before the assembly with the brush to clean up the welding mould

         

        Copper does not melt, the surface from the drum

         

         

         

         

         

         

         

        Check the vacuum brazing furnace up and down the door, screen mouth, carbon rods carefully before vacuum brazing

         

         

        The clamping ring is attached to the chip assembly, resulting in a sticky clamping ring

         

        The Assembly must ensure that there is a gap between the clamping ring and flange and chip components.

        Product components with the gap is not good, resulting in white edge

        Pressure margin to ensure that the gap 0.07

         

        The resistance flux is not dry. The surface is black after brazing

        The flux must be dry before clamping

        The vacuum brazing is uneven and causes the closure

        Must ensure that the vacuum brazing welding pad flatness (with ruler check)

         

        Vacuum brazing furnace partial pressure is insufficient, the product surface spray copper

         

        To ensure that the vacuum brazing furnace pressure between 200 ~ 250Pa

         

        Dong Jun vacuum brazing Technology Co., Ltd.
        Address:China Jiangsu province Yangzhou city Weiyang District Weiyang road 349

        Person to Contact: Dong-Jun Cai
        Switchboard:+86-0-13905275926
        Tel:+86-0514-87816911
        Fax:+86-0514-87816911
        http://www.www.rebekamusic.com
        Switchboard:+86-0514-87816911 E-mail:jsyzcdj@126.com

        Customer service de pa rinient :Tel: +86-0-13905275926


         

         

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