Reducing Radiation Heat from Induction Furnace on Lifting Magnet

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SUMMARY

The discussion focuses on methods to reduce radiation heat transfer from an induction furnace to a lifting electromagnet, specifically addressing the use of aluminum or silver spray on the bottom plate made of stainless steel. Participants confirm that while reflection and absorption of radiant energy are problematic due to high melting temperatures of ferrous scrap, alternative solutions such as double bottom plates are being explored. The primary goal is to extend the lifespan of the electrical insulation of the lifting magnet, which is subjected to extreme conditions and significant weight.

PREREQUISITES
  • Understanding of induction furnace operations and thermal dynamics
  • Knowledge of materials science, particularly regarding thermal conductivity and insulation
  • Familiarity with the construction and operation of lifting electromagnets
  • Experience with heat transfer principles, including convection and radiation
NEXT STEPS
  • Research the effectiveness of aluminum and silver coatings for thermal insulation
  • Investigate advanced materials for high-temperature applications in electromagnets
  • Explore the design and benefits of double bottom plates in thermal management
  • Learn about inert gas applications in high-temperature environments and their limitations
USEFUL FOR

Engineers and technicians involved in the design and maintenance of induction furnaces and lifting electromagnets, as well as materials scientists focusing on thermal management solutions.

dormo715
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http://lookpic.com/O/i2/73/DYktKEGg.jpeg Hello Dear Friends

We produce Lifting Electromagnet for Steel Scrap charging of Induction furnace, bottom plate of

electromagnet is made of Stainless steel .

my question :

Can We use AL OR SILVER Spray for Spraying bottom plate that Radiation heat is reflected ?
Is this method useful ?

OR Can We use material that absorb radiation heat ?

Our purpose : We need a way that radiation heat , reflect or absorb

by this way , amount of heat transfer by radiation to Lifting Electromagnet is decrease

and Life of Lifting Electromagnet insulation increased.

Thank Youhttp://lookpic.com/O/i2/943/LJEUNM4z.jpeg
 

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Ferrous scrap melting temperature is high enough that "reflection/absorption" of radiant energy is "problematic;" can you sell your customers an inert gas "door/portal" through which to charge? There are such things limiting escape/exchange of "heated/cooled" air at entrances to high foot traffic buildings. The object of the exercise is to lengthen the lifetime of electrical insulation for the magnet?
 
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Bystander said:
Ferrous scrap melting temperature is high enough that "reflection/absorption" of radiant energy is "problematic;" can you sell your customers an inert gas "door/portal" through which to charge? There are such things limiting escape/exchange of "heated/cooled" air at entrances to high foot traffic buildings. The object of the exercise is to lengthen the lifetime of electrical insulation for the magnet?

Thank You Dear for your opinion , unfortunately we can't use inert gas , because for Extreme conditions of lifting magnet , welding of bottom plate was cracking .(impacts in high temperature , weight of lifting magnet approximately : 3 to 4 ton) , when crack : inert gas was exited .

For reduce convection heat transfer , We use double bottom plate(similar to Double glazed window) . minimum space between plates is 50 mm . Is it useful for decrease radiation heat ? (I guess is not useful :( )

Yes The object is to lengthen the lifetime of electrical insulation for Lifting magnet

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