Hello, all!
Before threading stainless spokes with the Hozan C-700 spoke threader, which
says in the instructions that it works on stainless spokes and comes preset for
14 gage spokes, do you have to anneal the spoke by heating it red in a torch
flame and allowing it to cool slowly?
I say this because I am familiar with the work hardening produced in many
metals by cold working, e.g. wire drawing, and wonder if my seemingly
inconsistent results with this threader is due to it being provided with steel
wheels instead of carbide, or whether I should be annealing the spoke ends
first.
This threader is supposed to have carbide wheels for threading staineless
spokes, isn't it?
I got mine from Alfred E. Bike for $75 and I can't believe it has the proper
carbide wheels. It seems like they replaced the head. As shipped, it wasn't
even set for 14 gage spokes! The adjusting nut was totally slacked off.
I am looking at about two hours of ruining one test spoke after another as I
sneak up on the 14 gage setting by adjusting the nut the recommended 5 degrees
at a time, one-sizth of the arc between the point of a nut and the flat of a
nut. That is, there are six flats and six points marking 12 points around the
circle, but the instructions say not to adjust the nut more than 1/72 of a
circle at a time. What a freakin' hassle.
Anyway, what I am most interested is in the carbide wheels. They'd be dark
grey, wouldn't they? Mine are light silver grey and I am almost certain they
are steel.
I should test one with a magnet, but it'd better be a mighty clean magnet, or
I'll get filings on the wheel and get them crammed into the spoke surface. Yuk.
Just touching the steel wheel with a magnet might magnetize it, causing it to
attract iron and steel filings, ruining the threader operation.
Yours,
Doug Goncz ( ftp://users.aol.com/DGoncz/incoming )
Student member SAE for one year.
I love: Dona, Jeff, Kim, Mom, Neelix, Tasha, and Teri, alphabetically.
I drive: A double-step Thunderbolt with 657% range.