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Steam engine cylinder (1 viewing) (1) Guest
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TOPIC: Steam engine cylinder
#3425
Steam engine cylinder 2 Years, 6 Months ago  
here's a steam engine cyl I just cast. I pickled the old brass scraps before I melted them. Makes a heck of a difference !!
aonemarine (Moderator)
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#3427
Re:Steam engine cylinder 2 Years, 6 Months ago  
Do you mean pickled as in removing Chrome plating or just removing oxidation, dirt and such?

I have some Chromed parts that I'm debating on.

The part looks great, I just wish that brass looked like brass in the pictures.
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Last Edit: 2009/07/16 01:57 By Jammer.
 
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#3429
Re:Steam engine cylinder 2 Years, 6 Months ago  
that looks great aonemarine! im behind with my forum posting. ive been doing heaps of small brass castings for my "homecast" steam engine! i cast brass boiler endcaps,engine frames and flywheels and the cylinder block. i like your design. did you use "petro bond" sand??? it came out very clean. removing surface oxide with pickling is a good idea if it old brass.
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#3430
Re:Steam engine cylinder 2 Years, 6 Months ago  
the pickle was a sulpheric acid and water mix just to clean it off. turned it to a copper color, guess it ate the zinc off the surface
havnt had to deal with chrome yet....
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Last Edit: 2009/07/16 09:52 By aonemarine.
 
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#3431
Re:Steam engine cylinder 2 Years, 6 Months ago  
Yes, that was the petrobond. I need to get another battery for my other camera so i can get a close up, my old camera doesnt have zoom or macro mode so its pretty limiting.
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#3432
Re:Steam engine cylinder 2 Years, 6 Months ago  
did the petrobond burn badly against your aluminium casting.
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