国产高潮国产高潮久久久,,,

Welcome to the official website of Legret Metal Company
Focus on electronic welding for 20 yearsDONGGUAN LEGRET METAL.,LTD
National consultation hotline:135-2799-2739
Contact US
mobile phone: 135-2799-2739
Service hotline: 0769-38893080
Email: lzd@dglzd.com
Address: Dongguan lvzhidao Metal Co., Ltd
Contact person: Manager Zeng
Enterprise News

Solder paste knowledge training - selection of solder paste - Dongguan Lvzhidao

作者:Lvzhidao solder factory 2019-11-07 0

Today, lvzhidao solder factory has carried out the solder paste knowledge training for the business department, so that the salesmen can know more about lvzhidao solder paste products, better serve the customers and meet their needs.

錫膏

Today's solder paste knowledge training includes:

Introduction of solder paste

        Solder paste is a mixture of uniform and stable tin alloy powder, solder paste and special additives. Alloy connection can be formed after welding. This kind of material is very suitable for reliable welding of automatic production of surface mount. Solder paste is the product of high technology of modern electronic industry.


        The composition of solder paste is generally 90% tin alloy powder, 10% solder paste and other additives.


Selection of solder paste classification

Common solder paste alloy table

Alloy composition

Industry common name

Liquid temperature

Solid temperature℃

Sn63 / Pb37

6337  Sn63

183

183

Sn62 / Pb36 / Ag2

6236Ag2  Ag2

179

179

Sn62.8 / Pb36 .8/ Ag0.4

Ag0.4

179

183

Sn10 / Pb88 / Ag2

88   (高溫Ag2

290

268

Sn5 / Pb92.5 / Ag2.5

Ag2.5

280

280

Sn96.5 / Ag3.0 / Cu0.5

SAC305  305

219

217

Sn98.5 / Ag1.0 / Cu0.5

SAC105  105

217

227

Sn99 / Ag0.3/ Cu0.7

SAC0307  0307

227

229

Sn42 / Bi58

Bi58  4258

138

138

Sn64 / Bi35/Ag1

Bi35   Ag1

138

187


Solder paste alloys are selected according to lead or not

Is there any lead in it

Alloy composition

Lead alloy

Sn63 / Pb37

Sn62.8 / Pb36.8 / Ag0.4

Sn60Pb40,Sn55Pb45,Sn50Pb50

Sn62.8 / Pb36 .8/ Ag0.4

Sn 63Pb36.8Ag0.2

High lead Superalloy

It is currently exempt from RoHS

Sn10 / Pb90

Sn5 / Pb92.5 / Ag2.5

Lead free alloy

Sn96.5 / Ag3.0 / Cu0.5

Sn99 / Ag0.3/ Cu0.7

Sn98.5 / Ag1/ Cu0.5

Sn64 / Bi35/Ag1

Sn64.7Bi35Ag0.3

Sn42 / Bi58


Solder paste alloy is selected according to melting point temperature

Alloy composition

Melting point temperature

Liquid temperature

Solid temperature℃

Sn63 / Pb37

Ordinary moderate temperature class


Most processes are applicable


183

183

Sn62 / Pb36 / Ag2

179

179

Sn62.8 / Pb36 .8/ Ag0.4

179

183

Sn10 / Pb90

Ultra high temperature


Used for semiconductor products with high temperature resistance


290

268

Sn5 / Pb92.5 / Ag2.5

280

280

Sn96.5 / Ag3.0 / Cu0.5

High temperature lead free


It is suitable for most lead-free processes


219

217

Sn99 / Ag0.3/ Cu0.7

227

229

Sn42 / Bi58

Low temperature lead free


It is suitable for the welding of lead-free materials which are not resistant to high temperature and the radiator which has large heat absorption or the secondary migration welding


138

138

Sn64 / Bi35/Ag1

138

187


Selection of solder paste alloy by welding process classification

welding technology

Alloy composition

SMT welding process

Sn63 / Pb37

Sn96.5 / Ag3.0 / Cu0.5

Sn62 / Pb36 / Ag2

Sn99 / Ag0.3/ Cu0.7

Sn62.8 / Pb36 .8/ Ag0.4

Sn42 / Bi58

Sn64 / Bi35/Ag1

Semiconductor welding process

Sn10 / Pb88 / Ag2

Sn5 / Pb92.5 / Ag2.5

Through hole welding process

Sn63 / Pb37

Sn42 / Bi58

Sn62.8 / Pb36 .8/ Ag0.4

Sn64 / Bi35/Ag1

Sn99 / Ag0.3/ Cu0.7

Radiator welding process

Sn63 / Pb37

Sn42 / Bi58 Sn64


Sn63Bi35/Ag1

hot-bar


Sn64 / Bi35/Ag1

Sn96.5 / Ag3.0/ Cu0.5


All categories of solder paste under this topic will be shared next time. In addition, this topic also tells about solder paste particles, solder paste mesh and other knowledge points.


The remaining two themes

Please read the following article

How to use solder paste

Setting of reflow temperature of lead free solder paste



Dongguan lvzhidao Metal Co., Ltd. [lvzhidao solder factory] has a complete production system, producing and selling solder paste, solder wire, solder bar, lead-free solder bar, lead-free solder wire, lead-free solder paste and other products. For more details, please visit the official website of Lvzhidao:m.interox-sem.com。


精品无码国产污污污免费网站2| 老头猛吸女大学奶头a片| 国内夫妇交换自拍视频| 丞相嗲嗲嗯啊古代h| 无码jk粉嫩小泬在线观看欧美 | 翁吻乳婷婷小玲21章小说| 老师你的真嫩真紧av視頻| 特大欧美黑人巨大XXOO| 久久精品a亚洲国产v高清不卡| 久久久综合精品一区二区三区| 国产精品人妻一码二码| 揉腿却揉到两腿之间是湿的 | 无码精品黑人一区二区三区| 欧美巨鞭大战丰满少妇| 国产猛男猛女超爽免费视频| 公交车大龟廷进我身体里| 白嫩日本少妇做爰| 日韩一区二区三区精品| 亚洲一区二区| 五月丁香欧美综合亚洲av| 超碰caoporen97人人| 久久精品国产亚洲av麻豆| 男人和女人高潮做爰视频| WWW.一本色道88久久爱| 一次灌浆与二次灌浆| 久久99精品国产自在现线小黄鸭| 全彩调教本子h里番全彩无码| 九色porny真实丨国产大胸| 将军猛烈顶弄H太子肉肉| 強開小嫩苞一區二區三區| 少妇与大狼拘作爱性a片| 強姦犯された人妻たち| 久碰人妻人妻人妻人人掠| 大炕上大战白胖老妇| 人妻少妇屁股翘水多| 出差被夫の上司持久侵犯三浦步美| 青青河边草中文字幕mv| 含一整夜 好涨h| 哦┅┅快┅┅用力啊┅┅小说| 疯狂做爰18分钟视频| 久久精品国产一区二区三区|