Maintaining a temperature of 70 degrees in a metal powder

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Discussion Overview

The discussion revolves around methods to maintain a temperature of approximately 70 degrees Celsius in a magnetic powder compressed in a stainless steel mold for about two hours, followed by rapid cooling. The focus is on exploring various heating techniques suitable for this application.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant suggests using infrared heating but is open to simpler alternatives.
  • Another participant proposes using an oven or a toaster oven if the setup allows for it.
  • A different participant mentions that the setup cannot fit into an oven and must remain open to the environment.
  • One suggestion involves boiling a liquid with a boiling point close to 70°C, with alcohol being mentioned as a potential option, although it has a boiling point of 78°C.
  • Another participant raises the possibility of using RF radiation to heat the mold directly, expressing uncertainty about the feasibility.
  • A later reply indicates that heating to 250°C using SHF Infrared could eliminate the need to maintain the lower temperature, inquiring about suitable lamps that emit IR at frequencies between 3-30 GHz.

Areas of Agreement / Disagreement

Participants present multiple competing views on heating methods, with no consensus reached on the best approach to maintain the desired temperature.

Contextual Notes

Participants express varying levels of knowledge about heating techniques, and some suggestions depend on specific conditions such as the size of the setup and the environment in which it operates.

Who May Find This Useful

Individuals interested in materials science, engineering applications involving temperature control, or those exploring heating methods for specific materials may find this discussion relevant.

trini
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I am making a bonded magnet and have the need to maintain a temperature of around 70 C in a magnetic powder compressed in a stainless steel mold for a period of about 2 hours, before cooling rapidly to room temperature. i was thinking about using some sort of infra red heating, but would like to see if you all could make some simpler suggestions.
 
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How about your oven? Or maybe even a toaster-oven if your rig is small enough.
 
i can't fit it into an oven, it has to be out in the open.
 
Just boil something with that boiling point or close to it. Somehow alcohol comes to mind but it's 78'C.

An electric oven can be used to heat another chamber, a bigger one. use a thermocouple to get the temp right.
 
I don't really know anything about this stuff, but can you use RF radiation to heat the mould directly?
 
ok i did some more reading and now find that if i can heat it to about 250C using SHF Infrared, i would not have to then hold that tempeature at all. what kind of lamp can i buy to emit IR of frequency between 3-30 GHz?
 

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