I am replacing the triangular block of fiber that supports the contact button on a mag coil. I need to select the right material for the piece. I will be screwing a washer into the triangle to accept the solder and complete the button. I need material that will hold up to heat, be a good insulator and be easy to machine, and of course strong enough to accept a screw. I was thinking about using Delrin. Is there a better choice?
Linen base phenolic would be my choice.
You mean these
Found these in a bunch of NOS stuff. Dan
I believe Delrin would be a good choice. Easily machinable, drilled and tapped.
Having been around this insulator some be sure to be very careful about the screw lengths of the solder pile base.
And the cheapest way to get some is, pinch the cutting board out of the kitchen! but of course you will need to go to the $2.00 shop to buy mum a new one!!!
Delrin melts at 347F, less than the melting point of tin lead solder. I don't think this is the place for a thermoplastic.
Thanks for the responses, fellows. Dan, I sent you a private email.
The more I think about Delrin and the heat issue Ted points out it may not be the right choice.
Micarta can be had from e bay and a small piece will make several. KGB