Corrosion on Stainless Steel
Posted by dudesom
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Re: Corrosion on Stainless Steel September 29, 2013 03:33PM |
304 is the basic stainless for boats in salt water, but there is also an issue with corrosion caused when different metals touch each other.
Anything near salt water will corrode much more quickly than in a salt free environment. Anything near a tank of salt water will have to be extremly corrosion resistant. The is even more critical when electronics and wiring is involved. Adding heat makes all of this even worst!
All surmountable, but expenive to deal with!
Yvan
Singularity Machine
Anything near salt water will corrode much more quickly than in a salt free environment. Anything near a tank of salt water will have to be extremly corrosion resistant. The is even more critical when electronics and wiring is involved. Adding heat makes all of this even worst!
All surmountable, but expenive to deal with!
Yvan
Singularity Machine
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Re: Corrosion on Stainless Steel September 29, 2013 04:15PM |
Thanks for the info! The project that I'm working on will also use 3 servos, which I hadn't thought to protect until you mentioned electronics. Thanks for the heads up
[forums.reprap.org]
Edited 1 time(s). Last edit at 09/29/2013 04:16PM by dudesom.
[forums.reprap.org]
Edited 1 time(s). Last edit at 09/29/2013 04:16PM by dudesom.
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Re: Corrosion on Stainless Steel September 29, 2013 04:57PM |
dudesom Wrote:
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> What type of hot fumes were you exposing them to?
... all sorts of nasty chemicals and acids found in waste combustion with 'subcritical' temperatures
I had to seal platinum H2-sensors in stainless housings with laserwelded meshes to allow gas-diffusion into the housing but prevent ashes and small particles to touch the active surfaces.
Was a 'funny time' until we got the best combination for the housing, sensor materials/assembly/body and wire-connections (welding/brazing+sealing) to last more than some weeks in the 'reactor'
Viktor
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Aufruf zum Projekt "Müll-freie Meere" - [reprap.org] -- Deutsche Facebook-Gruppe - [www.facebook.com]
Call for the project "garbage-free seas" - [reprap.org]
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> What type of hot fumes were you exposing them to?
... all sorts of nasty chemicals and acids found in waste combustion with 'subcritical' temperatures
I had to seal platinum H2-sensors in stainless housings with laserwelded meshes to allow gas-diffusion into the housing but prevent ashes and small particles to touch the active surfaces.
Was a 'funny time' until we got the best combination for the housing, sensor materials/assembly/body and wire-connections (welding/brazing+sealing) to last more than some weeks in the 'reactor'
Viktor
--------
Aufruf zum Projekt "Müll-freie Meere" - [reprap.org] -- Deutsche Facebook-Gruppe - [www.facebook.com]
Call for the project "garbage-free seas" - [reprap.org]
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Re: Corrosion on Stainless Steel September 29, 2013 05:18PM |
Mine? No. This is for a hypothetical add-on to expand the functionality of a yet-to-be-released printer. The printer uses salt water.
@VDX Sounds like you had fun with that
I'm glad we don't need tremendous heat to 3d print (plastic anyway).
Edited 1 time(s). Last edit at 09/29/2013 05:21PM by dudesom.
@VDX Sounds like you had fun with that
I'm glad we don't need tremendous heat to 3d print (plastic anyway).Edited 1 time(s). Last edit at 09/29/2013 05:21PM by dudesom.
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Re: Corrosion on Stainless Steel September 29, 2013 06:13PM |
... actually I have similar problems with laser-fumes if the exhausting fails or fumes of the 'engraved' plastic or paint get in contact with metallic parts 
Viktor
--------
Aufruf zum Projekt "Müll-freie Meere" - [reprap.org] -- Deutsche Facebook-Gruppe - [www.facebook.com]
Call for the project "garbage-free seas" - [reprap.org]
Viktor
--------
Aufruf zum Projekt "Müll-freie Meere" - [reprap.org] -- Deutsche Facebook-Gruppe - [www.facebook.com]
Call for the project "garbage-free seas" - [reprap.org]
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Re: Corrosion on Stainless Steel September 29, 2013 06:45PM |
I hope to use mostly plastic fasteners. This is really low-duty/low-precision stuff I'm working on.
At first I didn't know what you meant by inox. I had to google that one
Edited 1 time(s). Last edit at 09/29/2013 06:46PM by dudesom.
At first I didn't know what you meant by inox. I had to google that one
Edited 1 time(s). Last edit at 09/29/2013 06:46PM by dudesom.
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Re: Corrosion on Stainless Steel September 29, 2013 07:53PM |
Yes, I don't know why the term 'inox' is not used more often, it is easier to type.
So would you buy the plastic fasteners or would they be FFFed? What is the cost of plastic nuts and bolts anyway? I've got a few and they are usefull. The don't conduct electricty or corrode much.
Or are you thinking more like plastic clips of some type?
Yvan
Singularity Machine
So would you buy the plastic fasteners or would they be FFFed? What is the cost of plastic nuts and bolts anyway? I've got a few and they are usefull. The don't conduct electricty or corrode much.
Or are you thinking more like plastic clips of some type?
Yvan
Singularity Machine
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Re: Corrosion on Stainless Steel September 29, 2013 08:16PM |
At this point I'm thinking that stainless probably won't cut it. Also, there are other issues that make z smooth rods more trouble than they're worth. Thanks all for the advice
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Re: Corrosion on Stainless Steel September 30, 2013 08:33AM |
I guess I just haven't been thinking big enough Another solution may be to use plastic sarrus linkages.
Another solution may be to use plastic sarrus linkages.
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