backtop


Print 33 comment(s) - last by TomZ.. on Jul 31 at 4:24 PM


Image courtesy TreeHugger
Grow up 007!

While some stores and businesses have cell phone recycling stations to drop off your old and worn cell phone which is then taken to a facility to be shredded or physically dismantled, Nokia is looking to a new method that could be more cost effective. Through research done at the Nokia Research Center in conjunction with three universities in Finland, is showcasing a prototype cell phone that can be disassembled by applying heat which then separates the various components of the phone to make them easier to recycle. From Nokia:

The idea is to disassemble a mobile phone by a heat-activated mechanism without any contact. By using a centralized heat source like laser heating, the shape memory alloy (SMA) actuator is activated, and the mobile phone covers are opened. The battery, display, printed wiring board (PWB) and mechanical parts are separated and can then be recycled in their material specific recycling processes. The required temperature for the disassembly is 60-150 ºC.

Nokia goes on to say that takes on average two minutes to dismantle a cell phone using traditional methods. With its new process, the company cuts that time down to two seconds. And for those of you worrying about your phone falling to pieces while sitting inside your hot car, don't worry. The 60C threshold for disassembly should be well above their average temperature of a car left in the hot sun all day.



Comments     Threshold


This article is over a month old, voting and posting comments is disabled

RE: Not Hot Enough
By Brandon Hill (blog) on 7/29/2006 4:06:10 PM , Rating: 3
quote:
No, that's not hot enough! Automotive electronics for the passenger area of a car are specified to operate up to 85ºC (underhood is specified up to 125ºC).


I was going by Nokia's commentary:

quote:
The required temperature for the disassembly is 60-150 ºC. If it were lower the phone could dismantle by itself, for instance in a hot car, and if it were higher the plastics would melt.


RE: Not Hot Enough
By TomZ on 7/29/2006 5:03:05 PM , Rating: 2
Well, 60-150ºC is a wide range, but clearly they can't have the phone "self destruct" below 90ºC. I'm sure Nokia is well aware of this, however.


RE: Not Hot Enough
By Hare on 7/29/2006 5:08:53 PM , Rating: 2
You honestly believe that Nokia is making a "self-destructing" phone and didn't think about hot cars etc. I would quess that you need to apply a fairly large amount of heat to a one specific part (via laser etc).


RE: Not Hot Enough
By Wwhat on 7/29/2006 5:50:47 PM , Rating: 2
That's silly, the idea is to make it easy recyclable, not by a university lab but by small organistaion that handle waste, imagine if they had to place each phone in a specific position and use a directed laser, then it would be easier and cheaper to use screws wouldn't it?

I agree btw that 60C is too low, not just cars in summer but near a heater in winter too.


RE: Not Hot Enough
By Hare on 7/29/2006 6:27:38 PM , Rating: 2
No lasers? Funny I thought this was in the article...
quote:
The idea is to disassemble a mobile phone by a heat-activated mechanism without any contact. By using a centralized heat source like laser heating, the shape memory alloy (SMA) actuator is activated, and the mobile phone covers are opened.


"I want people to see my movies in the best formats possible. For [Paramount] to deny people who have Blu-ray sucks!" -- Movie Director Michael Bay











botimage
Copyright 2014 DailyTech LLC. - RSS Feed | Advertise | About Us | Ethics | FAQ | Terms, Conditions & Privacy Information | Kristopher Kubicki