Author Topic: gold plated brass or bronze rods ? (or silver)  (Read 2169 times)

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Offline coppercone2Topic starter

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gold plated brass or bronze rods ? (or silver)
« on: May 27, 2024, 07:21:35 am »
I want gold plated brass or bronze or berylium copper rods of a diameter about 0.65 to 0.75mm that are heavily gold plated.

Is there a source for this? I see shady chinese stuff (gold pins for jewelry). An official good source?  I don't want to plate anything myself.

It needs to be strait too. I have a bad feeling a becu spring would be difficult to turn into a strait rod
« Last Edit: May 27, 2024, 07:25:44 am by coppercone2 »
 

Online jpanhalt

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Re: gold plated brass or bronze rods ? (or silver)
« Reply #1 on: May 27, 2024, 09:57:57 am »
Are you aware of the term, "gold-filled."  It is distinct from ordinary plating.  It is imprinted as GF on more expensive jewelry that is not solid gold.  Search using that key word.
 

Offline Stray Electron

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Re: gold plated brass or bronze rods ? (or silver)
« Reply #2 on: May 27, 2024, 04:02:08 pm »
   How long are you looking for and what exactly are you trying to accomplish?   Gold and silver have very different properties, are you looking for conductivity, solderability or corrosion resistance or what?  The same question for the core; brass, bronze and beryllium copper all have quite different properties.   Also how many of these rods are you looking for?

  And just so that you know; grinding and cutting beryllium is very hazardous.  It's safe in it's solid form but small particles are a huge health hazard.
 
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Offline jonpaul

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Re: gold plated brass or bronze rods ? (or silver)
« Reply #3 on: May 27, 2024, 04:08:02 pm »
for HV gaps, measurement, safety gaps eg Tesla Coil, gold is not needed.

See "sphere Gap" design and construcyion.

Jon
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Offline Stray Electron

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Re: gold plated brass or bronze rods ? (or silver)
« Reply #4 on: May 27, 2024, 04:13:11 pm »
  For things like that I would just copper or brass welding rod.   
 

Online jpanhalt

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Re: gold plated brass or bronze rods ? (or silver)
« Reply #5 on: May 27, 2024, 06:33:46 pm »
@Stray

You want specifics in a coppercone2 thread?   :-DD  This is like an empty bottle floating in the Pacific.  It may reach land eventually, but there is no and never was a message inside.
 
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Offline coppercone2Topic starter

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Re: gold plated brass or bronze rods ? (or silver)
« Reply #6 on: May 27, 2024, 10:00:51 pm »
they are useful for breadboards, component leads, sockets adapters, contacts, probes, etc

it seems like something that should exist for jewelry reasons
 

Online jpanhalt

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Re: gold plated brass or bronze rods ? (or silver)
« Reply #7 on: May 27, 2024, 11:46:24 pm »
it seems like something that should exist for jewelry reasons

They do, as already described.  Use your fingers to "do the walking."  Search on gold filled.
 

Offline coppercone2Topic starter

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Re: gold plated brass or bronze rods ? (or silver)
« Reply #8 on: May 28, 2024, 12:09:25 am »
I found this before. Etsy selling the same product that is on alibaba/aliexpress

Does anyone know a source that tells you the thickness of the layer, comes from a reputable manufacturer, etc. I assume you might get atomic thin gold flash from half of these guys

I don't even trust that its brass, let alone that the gold is what it says it is.
« Last Edit: May 28, 2024, 12:13:40 am by coppercone2 »
 

Offline thm_w

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Offline coppercone2Topic starter

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Re: gold plated brass or bronze rods ? (or silver)
« Reply #10 on: May 28, 2024, 12:21:35 am »
sure that can be one application, all those ready made things are too short and have the wrong dimensions.. Cutting the leads off wire wrap things seemed like the closest thing but the dimensions are wrong, so I would rather just use plain brass rod without the platings
 

Offline coppercone2Topic starter

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Re: gold plated brass or bronze rods ? (or silver)
« Reply #11 on: May 28, 2024, 01:43:46 am »
I have a feeling I will need to get equipment needed to verify gold if I wanna go down this road, it all looks really sketchy with no assurances at all
 

Offline coppercone2Topic starter

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Re: gold plated brass or bronze rods ? (or silver)
« Reply #12 on: May 28, 2024, 05:17:31 am »
the first application of this will be to make a through hole BAT54 diode with good leads that are not cannibalized from components
 

Offline jonpaul

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Re: gold plated brass or bronze rods ? (or silver)
« Reply #13 on: May 28, 2024, 06:05:53 am »
A Mercedes restoration expert freind was doing gold plating, had him make a number of flat copper for calibration of SMD VNA, Impedance .


Your only sure way to get true gold plating is DIY, iti is not that hard.

Use Electrolytic or chemical from  supply houses.like  Fischer

Expect  high cost and restrictions on shipping

Jon
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Offline coppercone2Topic starter

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Re: gold plated brass or bronze rods ? (or silver)
« Reply #14 on: May 28, 2024, 06:36:29 am »
I will just use koolamp silver instead of gold because I can scrub it on carefully, I don't want to do electroplating. it works OK on brass, just thin. but i can touch it up if necessary. For breadboards etc hopefully a thin layer of deoxit grease will keep friction low enough to keep the plating intact

I bought brass rods already because trying to find gold gave me a stomach ache

Which reminds me, I thnk ima clean my breadboard in the ultrasonic cleaner. its been since never. Then hopefully I can get this prototype done neatly the the minimum of dread bug soldering and make a new PCB
« Last Edit: May 28, 2024, 06:40:50 am by coppercone2 »
 

Online wraper

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Re: gold plated brass or bronze rods ? (or silver)
« Reply #15 on: May 28, 2024, 06:49:05 am »
they are useful for breadboards, component leads, sockets adapters, contacts, probes, etc
It's barely useful for any of that. Not useful for probes because you'll need to grind the pointy end so it will no longer be gold plated. Nearly useless for component leads because thick gold plating embrittles solder joints. "For breadboards" makes no sense whatsoever.
 
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Offline thm_w

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Re: gold plated brass or bronze rods ? (or silver)
« Reply #16 on: May 28, 2024, 08:10:28 pm »
the first application of this will be to make a through hole BAT54 diode with good leads that are not cannibalized from components

What?
https://www.digikey.ca/en/products/detail/sparkfun-electronics/BOB-00717/5318740
https://www.aliexpress.com/item/1005006944606669.html
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Offline coppercone2Topic starter

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Re: gold plated brass or bronze rods ? (or silver)
« Reply #17 on: May 28, 2024, 08:37:47 pm »
yeah so it has good leads

instead of cannibalizing resistor leads or using flimsy wire or like some people flimsy resistor leads

when I buy a transistor is had 3x gold plated long leads. like 5cm. when i wanna make them people are up in arms for some reason.
« Last Edit: May 28, 2024, 08:55:39 pm by coppercone2 »
 

Offline thm_w

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Re: gold plated brass or bronze rods ? (or silver)
« Reply #18 on: May 28, 2024, 08:56:56 pm »
You can just use regular gold 0.1" pin headers for this purpose. Square or round, I assume square would be better..
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Offline coppercone2Topic starter

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Re: gold plated brass or bronze rods ? (or silver)
« Reply #19 on: May 28, 2024, 09:02:14 pm »
their not long enough and often too thick. those are square, 0.81mm, and 1 inch max, and also incredibly inflexible. I want it more formable
 

Offline shabaz

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Re: gold plated brass or bronze rods ? (or silver)
« Reply #20 on: May 28, 2024, 11:54:16 pm »
Maybe this wire meet the mentioned requirements, except it's 0.01mm thinner at 0.64mm.
It's 'beadalon silver-filled CDA220' wire, which apparently has 10% weight silver outer, and the core is CDA220 which seems to be a type of brass or bronze, and is 'half hard' so not super-flexible like copper core.
They also have a non-CDA220 variant that is softer, with (presumably) copper core.
It's not overly expensive, but not low-cost. Silver will tarnish too. Personally I use a reel of bare tinned copper wire for short wire links etc.
 

Offline coppercone2Topic starter

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Re: gold plated brass or bronze rods ? (or silver)
« Reply #21 on: May 28, 2024, 11:58:21 pm »
oh hell yeah that saves me alot of work. I already bought the brass and I have kool amp but maybe I will buy some. It has alot thicker silver plating


I wonder how well it straitens out.

But buying silver metal... even the fucking welding supplier (airgas or some shit) ripped me off on brazing rod. I bought it from them after the amazon one turned out to be shitty, then they mailed me 1/2 of my invoice.  >:(
« Last Edit: May 29, 2024, 12:00:12 am by coppercone2 »
 

Offline shabaz

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Re: gold plated brass or bronze rods ? (or silver)
« Reply #22 on: May 29, 2024, 12:13:05 am »
I've bought copper-core (not BeCu) silver-clad wire in the past, (not Beadalon brand), and unfortunately is thicker so I can't estimate for sure how flexible a 0.64mm version of it may be : ( Hard to know whether the CDA220 or copper-core would be preferred.

EDIT: the web page mentions the half-hard variety is suited for wire-wrap (around jewelry items) so at least it's not springy!
« Last Edit: May 29, 2024, 12:15:31 am by shabaz »
 

Offline coppercone2Topic starter

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Re: gold plated brass or bronze rods ? (or silver)
« Reply #23 on: May 29, 2024, 12:20:30 am »
What I like about the silver is I can cut it on carbide, lap it a bit on a diamond file and then I should be able to see the thickness of silver under a microscope. gold im not so sure about
 

Offline coppercone2Topic starter

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Re: gold plated brass or bronze rods ? (or silver)
« Reply #24 on: May 29, 2024, 12:48:50 am »
actually I found a local supplier of gold wire.


The thing is, its 14k filled.

does 14k gold have the correct electrical properties? I always read about connectors having 24k. But I assume 14k is substantially harder, so more wear resistant.
 


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