Electromagnetic Coil 2 SS Rods Converging

In summary: Some stainless steel 304, 306, 316 L, etc. has nickel added to make them not magnetic, but that is not absolute. If you want to pull on the rods with a magnet, which is what you are doing, then you will have to mechanically drive the rods like a solenoid.In summary, the individual is looking to create an electromagnetic coil with two stainless steel rods and a push spring inside a plastic tube. The goal is to have the rods attract when the coil is activated, but the stainless steel material may cause an issue as it may not be magnetic. A metal casing around the coil may be needed to contain the magnetic current and the size and current requirements will need to be considered for this project.
  • #1
cluelessGUY
3
0
Howdy all,
I'm looking at having two (preferably) stainless steel rods inside a plastic tube (for insulation and so they don't touch) with a push spring inside and between the two rods pushing each other away from one another, when not activated inside of an electromagnetic coil. When the coil is activated, I want the two stainless steel rods to pull together and somewhat (they don't have to) meet somewhat in the center. The goal is more to move them closer to each other not so much meet together. Size wise, I'm looking at a 1" wide hole x 1" long in the coil (1" long coil), with 1/4" long by 3/4" wide SS (both rods) with the spring between. What would be required to actually make this happen? **see drawing to help with visual - the plastic tube is not shown** Note, the image is of the coil cut in half... IMG_2395.JPG

1. Will there need to be a metal casing around the coil to keep the magnetic current inside the 1" hole?
2. What will a metal casing around this coil gain?
3. Will the rods being stainless steel cause an issue?
4. Will there be a significant size in the coil to obtain this?
5. Will the current have to be very high to do this?
6... more importantly, is this even possible to accomplish with a coil like this?
 

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  • #2
cluelessGUY said:
3. Will the rods being stainless steel cause an issue?
Yes. Some stainless steel is magnetic, most not. If you want the two rods to attract each other then they will need to be a martensitic or a ferritic stainless steel. They are rare except in sheet form.
 

What is an electromagnetic coil?

An electromagnetic coil is a type of electrical conductor that is made up of a series of loops or windings. When an electric current flows through the coil, it produces a magnetic field.

What are SS rods?

SS rods are stainless steel rods, which are commonly used in electromagnetic coils due to their high electrical conductivity and resistance to corrosion.

What does it mean for two SS rods to be converging?

Converging SS rods refer to the positioning of the rods in an electromagnetic coil, where they are placed with their ends facing towards each other. This allows for a more concentrated and focused magnetic field to be produced.

How does an electromagnetic coil with two converging SS rods work?

When an electric current is passed through the coil, the magnetic field created by the converging SS rods becomes stronger and more concentrated. This allows for more precise control and manipulation of the magnetic field.

What are some applications of an electromagnetic coil with two converging SS rods?

Electromagnetic coils with two converging SS rods have a wide range of applications, including in electric motors, generators, MRI machines, and particle accelerators. They are also commonly used in electronic devices such as speakers and microphones.

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