SMT, PCB Electronics Industry News

Lead-Free (Pb-Free) Solder and Composition

Dec 08, 2018

Lead-Free (Pb-Free) Solder and Composition

http://www.flason-smt.com/new/Lead-Free-Pb-Free-Solder-and-Composition.html

Lead-Free Solder: Solder with NO Lead (Pb). Lead-Free is taking rapid momentum around the world after the EU (European Union) Directives to wipe off lead (Poison) from electronic soldering considering its health and environmental effects

RoHS: Restriction of Hazardous Substances [ lead (Pb), mercury (Hg), cadmium (Cd), hexavalent chromium (CrVI), polybrominated biphenyls (PBB) and polybrominated diphenyl ethers (PBDE).]

WEEE: Waste from Electrical and Electronic Equipments.

Why Lead Free in Electronics

Many of the electronic companies and manufacturers around the globe were using Tin-Lead (Sn/Pb) solder for PCB assembly and rework. They also used No-Clean Liquid Flux and No-Clean Solder Paste. They did not bother to clean the PCB and the flux residue after assembly. These boards were later dumped into earth.

While lead is dangerous and harmful during the assembly process, dumping the board in soil was harmful to the environment. This ultimately lead to make lead-free PCB assembly mandatory.

Lead Free Solder

Lead-Free Solder

Various Chemistry for alloy composition in lead-free solder was explored. Several things had to be kept in mind:

  • Composition of lead-free cored solder wire for hand-soldering
  • Composition of solder bar for wave soldering
  • Composition of solder paste for reflow and hot air soldering
  • Composition of BGA Balls
  • Chemistry of flux to be used in lead-free soldering
  • Temperature resistance and tolerance of led-free compatible electronic components

The best composition of solder as per the experts are:

  1. Lead Free Solder Wire – Sn96.5/Ag3.0/Cu0.5
  2. Lead-Free Solder Bar- Sn99.3/Cu0.7
  3. Lead-Free Solder Paste – Sn96.5/Ag3.0/Cu0.5

Flux – Flux used in lead-free soldering has to be more active to withstand the high temperature.

Flason Electronic Co.,ltd provide a full smt assembly line solutions, including Lead free reflow oven, wave soldering machine, SMT pick and place machine, smt stencil printer, PCB conveyor manufacturer, PCB unloader, chip mounter, SMT AOI machine, SMT SPI machine, SMT X-Ray machine, SMT assembly line equipment, PCB production Equipment smt spare parts etc any kind SMT machines you may need, please contact us for more information: wechat whatsapp:008613691605420, Skype: flasonsmt, Email: sales@flason-smt.com

FAQ

1) This is the first time I use this kind of machine, is it easy to operate?

There is English manual or guide video that show you how to use machine.

If you still have any question, please contact us by e-mail / skype/ phone /trademanager online service.

2) If machine have any problem after I receive it, how can I do ?

Free parts send to you in machine warranty period.

If the part is less than 0.5KG, we pay the postage.

If it exceeds 0.5KG, you need to pay the postage.

3) MOQ ?

1 set machine, mixed order is also welcomed.

4) How can I buy this machine from you? ( Very easy and flexible !)

A. Consult us about this product on line or by e-mail.

B. Negotiate and confirm the final price , shipping , payment methods and other terms.

C. Send you the proforma invoice and confirm your order.

D. Make the payment according to the method put on proforma invoice.

E. We prepare for your order in terms of the proforma invoice after confirming your full payment.

And 100% quality check before shipping.

F.Send your order by air or by sea.

5)Why choose us ?

A. Gold supplier on Alibaba !

B. Trade assurance to US$54,000 !

C. Best price & Best shipping & Best service !

Contact information

PREVIOUS:SMT Book – Surface Mount Technology Book PDFNEXT:All about Semiconductor

RELATED NEWS

  • Reflow oven provider-Flason
  • Lead-free processes propose new requirem
  • Nitrogen Protection Reflow Oven
  • Mixed process of SMT reflow oven
  • Solder Joint Reliability

CATEGORIES

  • Company News
  • Industry news

LATEST NEWS

  • How to Maintain a Reflow Oven?
  • How to optimize the reflow profile?
  • How the modern solder reflow oven works?
  • SMT Defect List
  • How to Prevent Solder Ball and Bridging Defects during the S

CONTACT US

Contact: Andrey

Phone: 13691605420

Tel: 0755-85225569

Email: sales@flason-smt.com

Add: Flason Industry park Shajing Town Baoan district shenzhen China 518104

When SMT matter to your business, partner with Flason. Where innovation takes form.
reflow oven lead free reflow oven LED strip reflow oven dual rail reflow oven custom reflow oven China reflow ovenSMT Peripheral Equipment SMT reflow oven 
wave soldering machine pick and place machine lead free wave soldering machine custom wave soldering machinecustom pick and place machine SMT Assembly line
SMT Reflow Oven Manufacturer Wave Soldering Mahchine Manufacturer Pick and Place Machine ManufacturerReflow Oven Manufacturer SMT Spare Parts LED Pick and Place Machine
Andrey: sales@flason-smt.com Wechat whatsapp:+86 13691605420 

Keywords: Reflow Oven Manufacturer SMT Reflow Oven Manufacturer Wave Soldering Machine Manufacturer SMT Stencil Printer Manufacturer Pick and Place Machine Manufacturer SMT Inspection machine Manufacturer SMT Pick and Place machine Manufacturer SMT Peripheral Equipment Manufacturer SMT Spare Parts Manufacturer SMT Reflow oven SMT AOI Machine Manufacturer Chip Mounter Manufacturer Solder Paste Printers Manufacturer SMT Reflow Oven Manufacturer SMT Feeder Storage Cart Manufacturer Selective soldering machine Manufacturer SMT Nozzle Manufacturer Siemens Feeder SMT Feeder Manufacturer Wave Soldering Machine Manufacturer Lead Free Reflow Oven Manufacturer Selective Wave soldering machine LED strip Reflow Oven Manufacturer Wave Soldering Machine Manufacturer Automatic SMT Stencil Printer Juki RS-1 Pick and Place Machine SMT Peripheral Equipment Manufacturer China wave soldering machine manufacturer Small wave soldeirng machine

For More information,visit US: Reflow Oven Manufacturer or SMT Reflow Oven Manufacturer Wave Soldering Machine Manufacturer SMT Stencil Printer Manufacturer Pick and Place Machine Manufacturer SMT Inspection machine Manufacturer SMT Assembly Line Manufacturer SMT Peripheral Equipment Manufacturer SMT Spare Parts Manufacturer SMT Feeder Manufacturer SMT Nozzle Manufacturer SMT X Ray Machine Feeder storage cart Manufacturer SMT Reflow Oven Manufacturer manufacturer email us: sales@flason-smt.com

Dec 08, 2018 -

All about Semiconductor

Dec 08, 2018 -

Top 10 Consumer Electronics Companies in the World

Dec 08, 2018 -

How Electronic / Electrical Circuit Works

Dec 08, 2018 -

Ball Grid Array (BGA) Package

Dec 08, 2018 -

SMT Dictionary – Surface Mount Technology Acronym and Abbreviation

Dec 08, 2018 -

Printed Circuit Board (PCB) for Surface Mount Technology (SMT)

Dec 08, 2018 -

Basic Soldering Guide – How to Solder Electronic Components

Dec 08, 2018 -

RoHS Guide in Electronics: RoHS, WEEE and Lead-Free FAQ

Dec 08, 2018 -

Electronic Components, Parts and Their Function

Dec 08, 2018 -

Top Silicon Wafer Manufacturing Companies in the World

133 more news from Flason Electronic Co.,limited »

Mar 27, 2024 -

Red Glue SMT Solutions: A Cost-Effective Approach for Double-Sided PCBs

Mar 26, 2024 -

North American PCB Industry Sales Down 11.6 Percent in February

Mar 26, 2024 -

iNEMI/IPC White Paper on Complex Integrated Systems Highlights Future Technology and Manufacturing Ecosystem Needs

Mar 26, 2024 -

Don Dennison Appointed to Roll Out KIC's Latest Thermal Analysis System Software in the Northeast

Mar 26, 2024 -

Altus Group Achieves Record Sales Milestone with Koh Young Europe

Mar 26, 2024 -

STI Welcomes Edrick Young as the Newest Mechanical Assembly Technician

Mar 26, 2024 -

Anda Technologies Receives 2024 NPI Award for Setting a New Standard in Smart Manufacturing

Mar 26, 2024 -

ZESTRON's Olaf Schoenfeld, Ph.D. to Participate in EV Special Session at IPC APEX Expo

Mar 26, 2024 -

North American EMS Industry Up 4.1 Percent in February

Mar 26, 2024 -

SMTA Europe Announces 2024 Spring Conferences

See electronics manufacturing industry news »

Lead-Free (Pb-Free) Solder and Composition news release has been viewed 1145 times

Software for SMT

Reflow Oven