Cold Heat Soldering Tool

[mixos]

Heats fast, cools fast
The Cold Heat Soldering Tool is a cordless tool that heats quickly and cools down nearly as fast. It creates the heat right in the proprietary tip material, making the tool 20 times more efficient than the average conventional soldering iron. The tip reaches 500 F in less than 1 second for many types of joints and cools to the touch in 1-5 seconds so you can put it away

[ginji]

thats cool, but i like my weller better

[Suraj]

This is a good tool to show off to friends but i don't think i can use it. Man if i can't feel the heat coming off my solder gun i might doze on the veroboard itself

[MP]

I have been trying out this device to see what comments I could add about it. I only have the larger tip, so I cannot get into the tight spots with mine, but it looks like the tip touching the solder or copper completes a connection and causes the tip to get hot like a little welder. Then when you remove it, the connection is lost and it immediately shuts down and cools off. With a little practice, I think I could do pretty good on larger circuits. My only concerns are that I see a little spark when the tip is making connection. I am not so sure you would be able to use such a tool with static sensitive devices. Suraj, perhaps the spark will help keep you awake  

MP

[Suraj]

Now that you are mentioning the sparks, i have a story to tell . Some years ago in a magazine named Electronics For You (in India) i read an article. It was about making a solder gun from a normal wooden pencil. The recipe was like this. You will need a 12V/1A DC power supply (filtering is not required). Take a wooden pencil attach one terminal of the power supply to one end of the pencil (to the lead inside it). And attach other terminal of power supply to the solder metal. Now trim the other end of the pencil to suit your needs. When you connect that end to the solder metal, it melts. I tried it out it was working fine until i accidently burned one BC547 by touchin base wth one lead & collector with another . I stopped using it at last when i fried some more parts   So if it sparks take care

[dicky]

Yeh!..I like my Weller too..One thing to know though..Some brands of resin core solder are not 60/40..they are 50/50 in make-up [tin/lead]... this leads to more heat required and sometimes ruined PCBs [ watch the cost of tin on the stock market ]...Dicky

[12412]

i might get that tool

[Jshwaa]

Anyone got a hunch on how it works?  I'm guessing it uses some sort of ultra-sonic magnetic field which creates a vibration in the solder which induces friction and heat.  Kind of like a pin-pointed microwave.  

[MP]

Here is my hunch:
It is more like a short circuit. There is a split in the tip and when you have a connection by the copper across the split, I think you are completing this connection which causes a short and thus gives you a high current. There is a spark like when you have a short.
I have only used mine a few times to see how it functions, but I imagine that the AAA batteries will not have a very long life if you use it a lot.

MP
 

[Codyhtml]

Here is my hunch:
It is more like a short circuit. There is a split in the tip and when you have a connection by the copper across the split, I think you are completing this connection which causes a short and thus gives you a high current. There is a spark like when you have a short.
I have only used mine a few times to see how it functions, but I imagine that the AAA batteries will not have a very long life if you use it a lot.

MP

yep thats how it works not a pinpointed microwave short circuit

[mrohler]

yeah it puts out a small voltage/current because when you solder led's with it and touch both leads it will light up.

[audioguru]

It is not a welder, the tip is a low value resistor with two contacts. Bridge the contacts with something conductive and the tip heats.
If it has enough voltage to light an LED and it has enough current to get hot, then it will light-up the base-emitter or base-collector junction of a transistor too.

[jspn2222]

I've heard that it takes a fair bit of pressure to activate the mechanism, which makes it difficult to use for some delicate operations.

[logan_dslasher]

i'm puzzled how it can heat and cool that fast!