Heating a Small Quantity: Ideas & Solutions

  • Thread starter Thread starter asfd
  • Start date Start date
  • Tags Tags
    Chamber Heating
Click For Summary

Discussion Overview

The discussion revolves around methods for uniformly heating a small quantity of a substance to approximately 200°C. Participants explore various heating solutions, emphasizing accessibility and effectiveness.

Discussion Character

  • Exploratory, Technical explanation, Debate/contested

Main Points Raised

  • One participant suggests using a soldering iron controlled by a thermostat for heating.
  • Another proposes using an incandescent light bulb with a thermostat as a heat source.
  • A different participant recommends a water-cooled arc lamp, citing its use in the rapid thermal annealing industry for uniform heat fluxes.
  • There is a mention of using a furnace or oven, which can provide uniform heat fluxes as well.
  • Concerns are raised about the safety of high wattage bulbs potentially exploding if overheated.
  • One participant questions the meaning of "uniform" heating and suggests clarifying what is meant by "uniform heating" versus "uniform heating rate."
  • A participant expresses doubt about the effectiveness of a soldering iron for achieving uniform heating.
  • Finally, one participant indicates they found a solution outside the discussion and thanks others for their input.

Areas of Agreement / Disagreement

Participants present multiple competing views on the best method for heating, with no consensus reached on a single solution. There is also uncertainty regarding the definition of "uniform heating."

Contextual Notes

Participants express varying assumptions about the heating methods' effectiveness and safety, as well as the specific requirements for uniformity in heating.

asfd
Messages
24
Reaction score
0
I need to melt a small quantity (probably less than a cubic centimeter) of a substance at around 200°C in the most uniform way possible and I'd like to have your ideas about how to heat it. Using easily accessible stuff would be better.

I've thought of controlling a soldering iron with a thermostat but I'm looking forward to hear your ideas.
 
Engineering news on Phys.org
You could use a incandescant light bulb to produce heat and a thermostat to control the bulb.

The soldering iron sounds pretty good, but you may need to design a heat spreader to make it heat evenly enough for your use.
 
Artman's suggestion sounds good, but I would use a water-cooled arc lamp instead of an incandescent bulb. Arc lamps with parabolic reflectors have been used successfully by the rapid thermal annealing industry to provide uniform heat fluxes.

But looking at your suggestion of a soldering iron confuses me. What do you mean by "uniform" ?

Then, there's always the option of a furnace or oven. These provide fairly uniform heat fluxes too.
 
Gokul43201, I figured he was looking at doing this with materials found around the house. Oops, I was going to say that water cooled arc was overkill for 200 deg F, but looking back at the post it was 200 deg C. That's considerably hotter than I was thinking. A high wattage light bulb could still achieve that in a small enough space.

Still, Gokul43201's suggestion may be the best route to reach 200 deg C.
 
Yes, a high wattage bulb would work, but remember, if the bulb gets too hot, it could explode.

What's wrong with just using a regular oven ? Mine goes up to about 250 C with about +/- 10C accuracy.

Need to know asfd's tolerances, as well as what is meant by "uniform heating" - because a soldering iron is the last method I'd use to achieve uniform heating. Perhaps, the intention was to say "uniform heating rate" ? I don't know...
 
You can forget about this"" i found the answer to my problem in an existing thing i can simply buy I'm having some keyboard problem so i'll end my post by thanking you anyway
 

Similar threads

  • · Replies 14 ·
Replies
14
Views
4K
  • · Replies 60 ·
3
Replies
60
Views
8K
Replies
9
Views
3K
  • · Replies 5 ·
Replies
5
Views
2K
Replies
18
Views
5K
  • · Replies 6 ·
Replies
6
Views
4K
  • · Replies 1 ·
Replies
1
Views
4K
  • · Replies 9 ·
Replies
9
Views
3K
Replies
1
Views
4K
  • · Replies 19 ·
Replies
19
Views
11K