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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:212733 日期:2019-5-3 19:32:00
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.万人红黑大战 www.auroradd.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

南京威途真空技术有限公司
销售部:
联系人:徐松林
手 机: 13813381300
联系人:邵兴华
手机:15077895597
联系电话: 025-84533350
传 真: 025-84533376
工厂地址:南京六合大厂
联系地址:南京市六合区中山科技园中鑫路68号
邮 编:210018
E-MAIL:njvac@126.com

www.万人红黑大战

 

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.万人红黑大战 www.auroradd.com
Switchboard:+86-0514-87816911 E-mail:jsyzcdj@126.com

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


Nanjing Wei passers-Vacuum Technology Co., Ltd.
Sales Department:
Contact: Xu Songlin
Mobile: 13813381300
Contact: Shaoxing Hua
Phone: 15077895597
Tel: 025-84533350
Fax: 025-84533376
Factory Address: Nanjing Luhe manufacturers
Contact Address: N0.68 zhongxin road zhongshan Technology Park,Liuhe District,Nanjing,jiangsu
Postal Code: 210018
E-MAIL: njvac@126.com

 

 

 

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