Melting and recasting pure iron bars?

In summary, the conversation discusses the difficulty of finding pure iron and the possibility of melting and casting small pure iron bars into other shapes without losing its magnetic properties. It is noted that the iron will lose its magnetism if melted above the Curie point, but can be re-magnetized once cooled below that temperature.
  • #1
wmingin
33
0
Hello Wizards!

I need to produce specially pure iron shapes for a research project.

As you may know, pure iron is hard to find.

Small pure iron bars are the easiest.

Is it possible to melt and cast these small pure iron bars into other shapes,

without the iron losing its remarkable magnetis properties?

Thank You All!

Bob
 
Chemistry news on Phys.org
  • #2
Since the melting point of iron (1538 C) is higher than the Curie point (770 C), the recast iron will lose its original magnetism. After the iron has cooled below the Curie point, it can be re-magnetized.

http://en.wikipedia.org/wiki/Curie_temperature
 
  • #3
Thank You very much!
B.
 

Related to Melting and recasting pure iron bars?

1. How is pure iron separated from impurities before melting?

Pure iron bars can be obtained by refining iron ore through a process called smelting, which involves using high heat and a reducing agent to remove impurities such as carbon, sulfur, and phosphorous. The resulting pure iron can then be melted down for recasting.

2. What is the melting point of pure iron?

The melting point of pure iron is 1,535 °C (2,795 °F). However, the melting point can vary depending on the purity and composition of the iron.

3. What is the process of melting and recasting pure iron bars?

The process of melting and recasting pure iron bars involves heating the bars in a furnace until they reach their melting point, then pouring the molten iron into a mold to shape it into the desired form. Once the iron has cooled and solidified, it can be removed from the mold and used for various purposes.

4. Can pure iron be recycled by melting and recasting?

Yes, pure iron can be recycled by melting and recasting. This process is known as remelting and is a cost-effective and environmentally friendly way to reuse iron for different applications.

5. What are the advantages of recasting pure iron bars?

Recasting pure iron bars can have several advantages, including producing a more uniform and consistent product, removing impurities that may have accumulated in the original bar, and allowing for customization of the iron's shape and size to fit specific needs or designs.

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