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Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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#1
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How to untarnish brass?
I made a couple of brass cannons for Xmas and needed to make some
brass chain. I found that wrapping it around a small rod and splitting the links with a Dremmel tool and cut off wheel, to be adequite. However to wrap the brass rod efficiently, I needed to heat the rod red to anneal it. Now that the chain is together, is there a solution I can dip this in to untarnish it without any rubbing? I'm sure that doing so will pull the chain apart. I tried to use emery clothe after heating to clean it but it seemed to harden again. Any ideas? |
#2
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How to untarnish brass?
WF wrote:
I made a couple of brass cannons for Xmas and needed to make some brass chain. I found that wrapping it around a small rod and splitting the links with a Dremmel tool and cut off wheel, to be adequite. However to wrap the brass rod efficiently, I needed to heat the rod red to anneal it. Now that the chain is together, is there a solution I can dip this in to untarnish it without any rubbing? I'm sure that doing so will pull the chain apart. I tried to use emery clothe after heating to clean it but it seemed to harden again. Any ideas? try Louisiana Hot Sauce... found in the food,condiment isle of any food store.... it will cut the tarnish off of a penny in about 2 minutes, will probably cut the tarnish off of any metal... |
#3
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How to untarnish brass?
WF wrote in message ws.com...
I made a couple of brass cannons for Xmas and needed to make some brass chain. I found that wrapping it around a small rod and splitting the links with a Dremmel tool and cut off wheel, to be adequite. However to wrap the brass rod efficiently, I needed to heat the rod red to anneal it. Now that the chain is together, is there a solution I can dip this in to untarnish it without any rubbing? I'm sure that doing so will pull the chain apart. I tried to use emery clothe after heating to clean it but it seemed to harden again. Any ideas? You need to acid pickle it after heating to remove the oxidation. Get some swimming pool "dry acid" (sodium bisulphate), use about 1 cup to a quart of very hot water, and soak your brass pieces for a while. This removes the smutty-looking grey or black copper oxides. If you have red stains, where the zinc burned out of the brass, leaving red copper, then you need to find some 30% hydrogen peroxide (try beauty supply store), and mix it 1 to 3 with a bit of the hot acid pickle solution. A short soak in this mixture will take off the copper stains. You might not have red stains if you didn't heat it too long when annealing. (and, no, drugstore peroxide won't work, not strong enough). Regards, Bob |
#4
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How to untarnish brass?
I'm by far from anything that might be called a chemist, but if memory
serves me right Hydrochloric acid removes the tarnish pretty good. Just dip it in there for a few seconds, then rinse with some clean water, let dry, whala. Once again, this is going back from my highschool chem classes, so my mind might be a bit tarnished by now... -- Lynn "I have opposable thumbs, and I'm not scared to use em" Amick http://www.amickracing.com "WF" wrote in message s.com... I made a couple of brass cannons for Xmas and needed to make some brass chain. I found that wrapping it around a small rod and splitting the links with a Dremmel tool and cut off wheel, to be adequite. However to wrap the brass rod efficiently, I needed to heat the rod red to anneal it. Now that the chain is together, is there a solution I can dip this in to untarnish it without any rubbing? I'm sure that doing so will pull the chain apart. I tried to use emery clothe after heating to clean it but it seemed to harden again. Any ideas? |
#5
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How to untarnish brass?
On Thu, 27 Nov 2003 07:21:57 GMT, WF wrote:
Try vinegar and salt .Make a saturate solution.If you want it paste add flower.rinse with cold water don't breath the fumes.You might still want to rub it a little if you want it shine.A piece of light wool fabric and tooth paste will do and rinse with cold watre.Tinker I made a couple of brass cannons for Xmas and needed to make some brass chain. I found that wrapping it around a small rod and splitting the links with a Dremmel tool and cut off wheel, to be adequite. However to wrap the brass rod efficiently, I needed to heat the rod red to anneal it. Now that the chain is together, is there a solution I can dip this in to untarnish it without any rubbing? I'm sure that doing so will pull the chain apart. I tried to use emery clothe after heating to clean it but it seemed to harden again. Any ideas? ----== Posted via Newsfeed.Com - Unlimited-Uncensored-Secure Usenet News==---- http://www.newsfeed.com The #1 Newsgroup Service in the World! 100,000 Newsgroups ---= 19 East/West-Coast Specialized Servers - Total Privacy via Encryption =--- |
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