With the increasing amount of electronic waste (e-waste) generated globally, it is an enormous challenge to recycle printed circuit boards (PCBs) efficiently and environmentally friendly. However, conventional recycling technologies have low efficiency and require tough treatment such as high temperature (>200°C) and high pressure. ... doi.org/10.1038/s41598-019-54045-w.
In the present study, a model of closed-loop recycling of copper from PCBs is demonstrated, which involves the sequential application of bioleaching and electrowinning to selectively extract copper. This approach is proposed as part of the solution to resolve the challenging ... doi.org/10.1007/s12649-020-01128-9
step stencil --
We will be exploring the exciting world of step stencils for the first time and I am looking for any advice from anyone using regularly. This direction is because we have large caps and soldered standoffs along with medium pitch LGA's and QFP's on same side of PCB. The caps and standoffs have not survived well during some preliminary "drop" tests ...
Hepco Vs Hand Crank -- We'd like to pick up an 8000 series Hepco lead former. We currently have a basic hand crank lead former. I'm having a hard time cost justifying the Hepco. I understand setup is more repeatable
PVA today announced the appointment of Dale Hall to Business Development Manager, 2K Meter Mix. Utilizing his 30 years of experience in the chemical manufacturing and robotic industry, Hall will establish strategic partners and expand new channels for PVA.... | Precision Valve & Automation (PVA)
SMTA - Surface Mount Technology Association is a non-profit international association of companies and individuals (totalling 4,000) involved in all aspects of advanced electronics assembly, surface mount and related technologies.
IPC - Association Connecting Electronics Industries is a US-based trade association dedicated to the competitive excellence and financial success of its nearly 2,600 member companies which represent all facets of the electronic interconnection industry, including design, printed wiring board manufacturing and electronics assembly.