Doug Goncz said:Hello, all!
Before threading stainless spokes with the Hozan C-700 spoke
threader, which
Quoted message said:says in the instructions that it works on stainless spokes and comes
preset for
Quoted message said:14 gage spokes, do you have to anneal the spoke by heating it red in
a torch
Quoted message said:flame and allowing it to cool slowly?
No ... the amount of work hardening going into a spoke threader is not
all that large when compared to all the various draws the wire went
through before it was made into spokes. if you were to anneal it you
would end up with a much softer zone in the spoke... (not to mention
the overall inaccuracy of the heat it with a torch method of annealing
steel) AFAICT the alloy is 304
Quoted message said:
This threader is supposed to have carbide wheels for threading
stainless
Quoted message said:spokes, isn't it?
Mine had dark black/gray wheels I don't remember them being made of
carbide though I suspect they were not ...
Quoted message said:I got mine from Alfred E. Bike for $75 and I can't believe it has the
proper
Quoted message said:carbide wheels. It seems like they replaced the head. As shipped, it
wasn't
Quoted message said:even set for 14 gage spokes! The adjusting nut was totally slacked
off.
Quoted message said:
I am looking at about two ...
snip
Quoted message said:...adjust the nut more than 1/72 of a circle at a time. What a
freakin' hassle.
It was a bit of a pain to set up but once you got used to it it worked
well enough... just a tip get a good micrometer and measure the OD
(outside diameter) of a commercial spoke, make rough adjustments until
your spoke OD is close then worry about finer ones... (better yet get a
shadowgraph measure thread ID (internal diameter) then you can really
be sure! they are only $8K or so <grin>😉
Quoted message said:
Anyway, what I am most interested is in the carbide wheels. They'd be
dark
Quoted message said:grey, wouldn't they? Mine are light silver grey and I am almost
certain they
Quoted message said:are steel.
Not all carbides are dark grey (though most are), again I would be
surprised to find out they were supposed to be carbide, even the best
comercial thread roll dies are M42 or T15 (tool steels). Carbide can be
fragile in some applications and with stainless it is prone to gauling.
I would not worry overmuch about them being silver grey .. though at
that price i would suspect something was up as well... the tool was
over $200 CDN when I bought the one we used.
(Please note I don't know if they are supposed to be Carbide or not I
simply suspect not)