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#1
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diy anodes
I have a lot of old zinc anode remnants from the boat hull hanging
around discards from the annual haulout. Each year I also replace the anodes in my Yanmar 2qm20 engine, which are tiny, but more expensive than the much larger tear drop hull anodes. The engine anodes are just zinc molded on to a thread. Would it difficult or in any way dangerous to melt an old hull anode down to refurbish the engine anode? Thanks Putting |
#2
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Not very practical or safe since zincs are relatively cheap and the heath
risk is great. Heating zinc will produce toxic fume that have always be a known to welders and foundry workers. Even a small amount can be harmful. -- My experience and opinion, FWIW -- Steve s/v Good Intentions "puttingau" wrote in message oups.com... I have a lot of old zinc anode remnants from the boat hull hanging around discards from the annual haulout. Each year I also replace the anodes in my Yanmar 2qm20 engine, which are tiny, but more expensive than the much larger tear drop hull anodes. The engine anodes are just zinc molded on to a thread. Would it difficult or in any way dangerous to melt an old hull anode down to refurbish the engine anode? Thanks Putting |
#3
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On 21 Jun 2005 21:15:41 -0700, "puttingau"
wrote: I have a lot of old zinc anode remnants from the boat hull hanging around discards from the annual haulout. Each year I also replace the anodes in my Yanmar 2qm20 engine, which are tiny, but more expensive than the much larger tear drop hull anodes. The engine anodes are just zinc molded on to a thread. Would it difficult or in any way dangerous to melt an old hull anode down to refurbish the engine anode? Thanks Putting Zinc narcosis is noted by welders who join galvanized steel. The vapor induces a vivid headache which remits in a day or two. Then there are the serious side-effects.... Brian Whatcott Altus OK |
#4
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Hey, Cheapskate!
Just trash them: the alloy changes form due to electrolysis, and these suckers are cheap anyhow. Then again, do you have giant balls of aluminum foil stored in your basement? Good thoughts, muskrat puttingau wrote: I have a lot of old zinc anode remnants from the boat hull hanging around discards from the annual haulout. Each year I also replace the anodes in my Yanmar 2qm20 engine, which are tiny, but more expensive than the much larger tear drop hull anodes. The engine anodes are just zinc molded on to a thread. Would it difficult or in any way dangerous to melt an old hull anode down to refurbish the engine anode? Thanks Putting |
#5
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"puttingau" wrote:
I have a lot of old zinc anode remnants from the boat hull hanging around discards from the annual haulout. Each year I also replace the anodes in my Yanmar 2qm20 engine, which are tiny, but more expensive than the much larger tear drop hull anodes. The engine anodes are just zinc molded on to a thread. Would it difficult or in any way dangerous to melt an old hull anode down to refurbish the engine anode? Thanks Putting There are standards for zinc oxide fume, and people that are overexposed can get zinc fume fever (which will pass), and also you can develop an occupational asthma from repeated exposure. But molten pure zinc (as opposed to zinc oxide0 does not cause health problems beyond the obvious burns if you pour it over yourself. The melting point is 420C. grandma Rosalie |
#6
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puttingau wrote:
I have a lot of old zinc anode remnants from the boat hull hanging around discards from the annual haulout. Each year I also replace the anodes in my Yanmar 2qm20 engine, which are tiny, but more expensive than the much larger tear drop hull anodes. The engine anodes are just zinc molded on to a thread. Would it difficult or in any way dangerous to melt an old hull anode down to refurbish the engine anode? Thanks Putting Practical Boat Owner did a 'readers tips' article on exactly what you are hoping to do. Not available online but you can get a reprint. http://www.ybw-directory.com/reprints/results1.jsp?offset=0&tem=pbo&category=Practical%2 C+maintenance+%26+repair&keyword=Recycling+anodes& author=&mag=pbo&hidden_mag=pbo&month=%25&year=%25 or http://tinyurl.com/dne5t Also I suggest you ask about zinc casting on rec.crafts.metalworking -- Ian Malcolm. London, ENGLAND. (NEWSGROUP REPLY PREFERRED) ianm[at]the[dash]malcolms[dot]freeserve[dot]co[dot]uk [at]=@, [dash]=- & [dot]=. *Warning* HTML & 32K emails -- NUL: 'Stingo' Albacore #1554 - 15' Early 60's, Uffa Fox designed, All varnished hot moulded wooden racing dinghy. |
#7
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puttingau wrote:
I have a lot of old zinc anode remnants from the boat hull hanging around discards from the annual haulout. Each year I also replace the anodes in my Yanmar 2qm20 engine, which are tiny, but more expensive than the much larger tear drop hull anodes. The engine anodes are just zinc molded on to a thread. Would it difficult or in any way dangerous to melt an old hull anode down to refurbish the engine anode? If you can cast bullets you can cast something small of zinc, it is done everyday. Large shipyards also melted & reclaimed big hull zincs for decades. If you know nothing about casting & don't have the needed supplies, don't bother. I know that people get raped on small sacrifical anodes. Zinc itself isn't hazardous. Zinc is good for your dink, some say. :-) |
#8
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#9
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Rosalie B. wrote:
Casting bullets out of lead IS hazardous to your health. So is sailing. :-) Thousands of years of experience attest. Not to mention working with monomers & polymers, machining exotic woods, applying and sanding marine hull coatings, sucking down various mollusks at the marina bar, and walking back to your berth when half the people driving out in the other direction are drunk. In fact, life itself is totally deadly; the last time I checked, the death rate was 100%. Frank Marine Eng Not afraid of things in this temporary life, has a real one elsewhere. |
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