CPU Modules Help

[lazersteve]

For the record, in my Gold Filled Scrap DVD I demonstrate incinerating gold filled scrap to a dull red heat in order to burn the debris and oils from the scrap before processing. I followed Harold's masterful instructions and consulted him before I filmed the video. If my memory serves me correctly I gave thanks and credit to Harold in the closing segment of the video.

This type of incineration is slightly different than what Harold has spelled out above. I followed his instructions on this second type of incineration while filming a yet unreleased video of me processing bench sweeps and buffings. I used a MAPP torch instead of a gas burner for my heating from below the pan, but otherwise followed his instruction as given.

Harold fell free to correct me if I'm wrong, but there are actually a few ways to approach incineration depending on the material being incinerated. Large metallic scrap like gold filled jewelry can be heated directly to a dull red heat to accomplish incineration, while filters, sweeps, buffings, and the like should be incinerated from below as Harold has already described.

Steve

 

[glorycloud]

Seeing what you did the Gold Filled Scrap DVD really helped me.
I look forward to "seeing" your yet to be released video on another
type of inceineration.

Thanks again to one and all!! 8)

 

[Harold_V]

Harold fell free to correct me if I'm wrong, but there are actually a few ways to approach incineration depending on the material being incinerated. Large metallic scrap like gold filled jewelry can be heated directly to a dull red heat to accomplish incineration, while filters, sweeps, buffings, and the like should be incinerated from below as Harold has already described.

No need for correction. You've done a masterful job of providing useful information.

The purpose of incineration is to eliminate unwanted substances, including oils. Larger solid objects that may be subjected directly to acid are best heated as described. You can usually see the benefit of doing so by witnessing the combustion of oils that are not necessarily otherwise noticeable. You are best served if you can keep them out of your solutions.

The methods I promote require a minimum of equipment, plus they're simple. That's the only reason I promote them as I do. There are likely far better methods, assuming one doesn't mind investing in equipment. That was never my goal.

Harold

 

[nicknitro]

Yay, I got Pics Finally,

They suck though cause they came of a phone. Boy, what a let down, Mwop Mwop.

Here They are,


Golden Cpu Cradles

 

[nicknitro]

CPU CRADLE COMPARISON

 

[nicknitro]

DIFFERENT ONE WHITE METAL PINS?????

 

[nicknitro]

gold spring connectors

 

[nicknitro]

Good Luck All,

Need any other Pic's Hope I have them still.

Nick

 

[nicknitro]

Hey All,

Update.

For the golden spring-like connectors from the cpu cradles. I kinda went against advisory. Sorry, I do value everyone's experience.

Well, to skip to the chase. I tried melting the connectors into a nugget. The materials involved were more than my mapp torch could melt even in my mini-furnace. So I took them to work and used the propylene-oxy torch to heat it. I heated it to white-hot, with out much luck of makeing a liquid pool, only more of a mix of borax and partially melted materials. The cool part of it was that the gold from the plateing formed many small BB's forming out of the borax. I took the melting dish home and let some nitric dissolve the borax, and other base metals. Leaving behind many clean looking BB's and some golden powder. I will have to re-process these items, but I feel that if I had just run the materials with 35% nitric, that I would have most likely had a hard time finding my gold mixed with probably zinc powder, and possibly some copper nitrate or copper.

I will post some pics, but again they are from a cell phone, so I don't know about the detail.

Thoughts, Criticisms???,

Thanks Guys and Gals,
Nick

 

[qst42know]

Beryllium has a high melt point and is one of the metals used for spring contacts.

I wouldn't continue melting spring contacts for no good reason.

"The disease can be caused by virtually any form of beryllium dust or fumes, ranging from beryllium alloys (for example, aluminum-, copper-, nickel-, and magnesium-beryllium) and beryllia ceramics to pure metal. Once inhaled, beryllium is like a time bomb in the body. In some people, disease develops within a few months, or it can take 40 years. Workers who breathed beryllium dust even for a few days carry a lifelong risk of developing sensitization to the metal and disease. In our clinics at National Jewish, we now care for hundreds of patients who have developed this serious, chronic allergic reaction to beryllium."

Read the full article.

http://pubs.acs.org/cen/80th/beryllium.html

 

[Harold_V]

The percentage of beryllium used in copper alloy springs is very low --in the vicinity of 3% or even less, so the melting temperature of the material shouldn't be adversely affected. Furthermore, pure beryllium melts @ 1290°C (2354°F), which is well under a white heat. Were the items in question beryllium copper, they should have easily melted into a homogeneous mass (although that's still not a good idea).

I am of the opinion that the springs in question were not beryllium copper, but carbon steel, or even stainless steel. Each of them would melt at a white heat.

Not everything is making sense here. If you have a few samples of the material, might be a good idea to file into one and see what color it is inside----plus check it with a magnet. Being magnetic does not exclude it from being stainless, which I expect it might be. Heat treatable stainless is usually magnetic, but not always.

Harold

 

[nicknitro]

Harold,

Thanks for the advice. I'm not sure if I could even file something so small though. They are like pin-heads at best but coiled windings. If I were to guess a guage, I have dealt with some small wires before. They would probably be 1/4 the thinkness of 28 gauge wire.if that.

Any takers on a non-metallic substance? No? I can't think of any off hand , that would stand up to that heat, and still be springy.

I would have to say a pretty good yield though I am estimateing. I had approx 3.5 grams of these springs, and they look like they will yield 0.5 grams or close to it.

More to come,
Nick

 

[Harold_V]

I would have to say a pretty good yield though I am estimateing. I had approx 3.5 grams of these springs, and they look like they will yield 0.5 grams or close to it.

That probably makes sense due to the tiny size of the springs. Even though the gold layer may be thin, it still comprises a big percentage of the overall size.

I'm still betting on a ferrous alloy. The color of the flux in the dish is really suspect. I would have expected a blue color, not the reddish brown I see.

Are they all gone? A magnet test would be fast and easy. I understand about your reluctance to try filing something so small. You can't even rely on snipping them when they are plated with soft metals. It smears across the cut and disguises the parent material pretty well. That's the reason one always tests with nitric, assuming it's proper for the item in question.

By the way-----this could well have been one of those cases where you'd have been well advised to process directly in AR (I rarely advise that procedure). The yield would have been dirty, but assuming they are not copper based, it would be a good solution to the problem of eliminating the base metal, and it's not all that hard to re-refine the gold, as you know.

Harold

 

[nicknitro]

Harold,


Hmm,

You are scareing me a little. Are you really Harold, or is someone else using his screen name??? LOL

The thought never crossed my mind about processing the batch with AR. Too used to hearing everyone giving advice against it.


I did originally test with nitric as stated, and not much happened to the few connectors I tried so I used a few drops of AR and it quickly dissolved the mass into a red/brown sediment. That is why I didn't want to mix up the gold with this reddish brown sediment, being so tiny, I figured I would have a mess on my hands, when it came time for incineration. Still panning out the rest of the bb's and gold powder, filtered first run of nitric, and added a second. I will try to post a better pic of the bb's when I get home. With a real camera as well.

Oh yeah , I believe they are all gone. I will double check.

I stil have the ones from the white CPU cradles, though. They are deffinitely different. Almost like the manufacturer went with something cheaper, over the years. These feel more of a plastic to me. Any educated guesses Harold, as to the materials?

Thanks all,
Nick