Ovens/Furnaces in the HSM/Woodworking Shop
By the goodness of the Great Gods of Scrouging, I have been gifted with
access to a number of bench sized ovens and furnaces that could be used in a HSM/woodworking shop....some of which will soon grace my humble shop space. If you were going to setup a oven/furnace corner in your shop, what would you want to install for a set of ovens and furnaces? How big? How hot? Gas or electric? Ventilation needs? For applications I can think of heat treating, drying of parts, drying of painted parts and the occasional pizza ;)....is there any use that I am leaving out? If one would like to upgrade some of the controllers, what would you recommend? Thanks for any suggestions, links or pictures (hint, hint) that you may offer. TMT |
Ovens/Furnaces in the HSM/Woodworking Shop
Too_Many_Tools wrote: By the goodness of the Great Gods of Scrouging, I have been gifted with access to a number of bench sized ovens and furnaces that could be used in a HSM/woodworking shop....some of which will soon grace my humble shop space. If you were going to setup a oven/furnace corner in your shop, what would you want to install for a set of ovens and furnaces? How big? How hot? Gas or electric? Ventilation needs? For applications I can think of heat treating, drying of parts, drying of painted parts and the occasional pizza ;)....is there any use that I am leaving out? If one would like to upgrade some of the controllers, what would you recommend? Thanks for any suggestions, links or pictures (hint, hint) that you may offer. I suggest you try to get manuals for them, then read them and follow their recommendations. If you cannot find manuals specific to the models you have, try to find some for equivalent models. -- FF TMT |
Ovens/Furnaces in the HSM/Woodworking Shop
Keeping welding rod dry.
snip.... For applications I can think of heat treating, drying of parts, drying of painted parts and the occasional pizza ;)....is there any use that I am leaving out? 73 Gary |
Ovens/Furnaces in the HSM/Woodworking Shop
On 20 Jan 2006 14:59:16 -0800, "Too_Many_Tools"
wrote: By the goodness of the Great Gods of Scrouging, I have been gifted with access to a number of bench sized ovens and furnaces that could be used in a HSM/woodworking shop....some of which will soon grace my humble shop space. If you were going to setup a oven/furnace corner in your shop, what would you want to install for a set of ovens and furnaces? How big? How hot? Gas or electric? Ventilation needs? For applications I can think of heat treating, drying of parts, drying of painted parts and the occasional pizza ;)....is there any use that I am leaving out? If one would like to upgrade some of the controllers, what would you recommend? Thanks for any suggestions, links or pictures (hint, hint) that you may offer. TMT Curing powdercoat on parts that the oven can accomodate. Melting zinc and/or aluminum for small castings. I would go electric rather than gas for ease of temperature control including programmed temperature control for heat treat. I'd want up to 1400F for "burnout" and calcining of investment molds. I'd go with one of the many thermocouple PID controls that are easily found on EBay for about $50. |
Ovens/Furnaces in the HSM/Woodworking Shop
"I suggest you try to get manuals for them, then read them and
follow their recommendations. If you cannot find manuals specific to the models you have, try to find some for equivalent models. " Good suggestion but I doubt they are around. What temperature ranges are useful in a shop environment? Is gas or electric more useful? Which is more controllable? TMT |
Ovens/Furnaces in the HSM/Woodworking Shop
According to Morris Dovey :
[ ... ] One of the furnaces in my shop is powered by a moderately hot (~6000 degrees Kelvin) remote unshielded fusion reactor. In the summertime I use it for brewing tea. :-) Hmm ... are you talking about solar energy? Enjoy, DoN. -- Email: | Voice (all times): (703) 938-4564 (too) near Washington D.C. | http://www.d-and-d.com/dnichols/DoN.html --- Black Holes are where God is dividing by zero --- |
Ovens/Furnaces in the HSM/Woodworking Shop
Too_Many_Tools wrote:
By the goodness of the Great Gods of Scrouging, I have been gifted with access to a number of bench sized ovens and furnaces that could be used in a HSM/woodworking shop....some of which will soon grace my humble shop space. If you were going to setup a oven/furnace corner in your shop, what would you want to install for a set of ovens and furnaces? How big? How hot? Gas or electric? Ventilation needs? For applications I can think of heat treating, drying of parts, drying of painted parts and the occasional pizza ;)....is there any use that I am leaving out? If one would like to upgrade some of the controllers, what would you recommend? Thanks for any suggestions, links or pictures (hint, hint) that you may offer. TMT For heat treating you shoud have an oven that will go to at least 1800 degrees. An electric oven is the way to go. Its a lot easier to control and has no fumes other than the ones off your parts. John |
Ovens/Furnaces in the HSM/Woodworking Shop
DoN. Nichols (in
s.com) said: | According to Morris Dovey : | | [ ... ] | || One of the furnaces in my shop is powered by a moderately hot || (~6000 degrees Kelvin) remote unshielded fusion reactor. In the || summertime I use it for brewing tea. :-) | | Hmm ... are you talking about solar energy? Darn! Did my sig give me away (again)? LOL -- Morris Dovey DeSoto Solar DeSoto, Iowa USA http://www.iedu.com/DeSoto |
Ovens/Furnaces in the HSM/Woodworking Shop
"...and has no fumes other than the ones off your parts. "
There for a minute I thought you said "off your pants" and wondered how you knew we had mexican for lunch today. LOL TMT |
Ovens/Furnaces in the HSM/Woodworking Shop
On Fri, 20 Jan 2006 23:02:35 -0600, with neither quill nor qualm,
"Morris Dovey" quickly quoth: DoN. Nichols (in rs.com) said: | According to Morris Dovey : | | [ ... ] | || One of the furnaces in my shop is powered by a moderately hot || (~6000 degrees Kelvin) remote unshielded fusion reactor. In the || summertime I use it for brewing tea. :-) | | Hmm ... are you talking about solar energy? Darn! Did my sig give me away (again)? LOL "Summertime" + "tea" were the dead giveaways for me. - DANCING: The vertical frustration of a horizontal desire. --------------------------------------------------------- http://diversify.com Full Service Web Programming |
Ovens/Furnaces in the HSM/Woodworking Shop
Too_Many_Tools wrote:
For applications I can think of heat treating, drying of parts, drying of painted parts and the occasional pizza ;)....is there any use that I am leaving out? TMT Basic forging and blacksmithing can be handy at times. And or course, powdercoating. -- Gary Brady Austin, TX www.powdercoatoven.4t.com |
Ovens/Furnaces in the HSM/Woodworking Shop
"Basic forging and blacksmithing can be handy at times. And or course,
powdercoating. " What temperatures are we talking about here? TMT |
Ovens/Furnaces in the HSM/Woodworking Shop
Maybe I should add this request....what temperatures and temperature
ranges are useful in a home shop environment? Any ventilation issues that one needs to consider when doing certain operations? TMT |
Ovens/Furnaces in the HSM/Woodworking Shop
"Too_Many_Tools" writes:
Maybe I should add this request....what temperatures and temperature ranges are useful in a home shop environment? Depends entirely on what you want to do. If you go for pottery (not uncommon in home shops) you need something above 1000 degrees Celsius, enhancing carbon content for hardening mild steel also needs that during several days and a controlled atmospehre, too, soldering (some parts are soldered in Ovens) you get away with a few 100 degrees, breeding bacteria needs less than 40 degrees... Any ventilation issues that one needs to consider when doing certain operations? You ought to be more specific as to what you want to do. -- Dr. Juergen Hannappel http://lisa2.physik.uni-bonn.de/~hannappe Phone: +49 228 73 2447 FAX ... 7869 Physikalisches Institut der Uni Bonn Nussallee 12, D-53115 Bonn, Germany CERN: Phone: +412276 76461 Fax: ..77930 Bat. 892-R-A13 CH-1211 Geneve 23 |
Ovens/Furnaces in the HSM/Woodworking Shop
When I mention ventilation, I am thinking that some processes might be
better done in the open air (meaning the oven/furnace needs to be mobile so it can be rolled out of the shop) or at least requiring a ventilation system (thus requiring a vent to the outside and the logistics that requires). Drying parts, freshly painted parts, powdercoating all come to mind here. The reason why I am focusing on temperatures and temperature ranges is that the "solution" (the availability of good cheap ovens/furnaces) has preceded the "requirement" (what processes/interests are common in a home workshop environment)...which is typical of the second hand market. Ever come up with a need for some item long after it is gone...I have. Good point about pottery...I had not thought of that. Thanks TMT |
Ovens/Furnaces in the HSM/Woodworking Shop
According to Morris Dovey :
DoN. Nichols (in s.com) said: | According to Morris Dovey : | | [ ... ] | || One of the furnaces in my shop is powered by a moderately hot || (~6000 degrees Kelvin) remote unshielded fusion reactor. In the || summertime I use it for brewing tea. :-) | | Hmm ... are you talking about solar energy? Darn! Did my sig give me away (again)? LOL Nope! I didn't even notice that -- if it was in that article (gone now, so I can't check). It was just that the Sun was the nearest unshielded fusion reactor that I know of -- and the temperature sounds about right for the surface temperature of the Sun. And the Sun certainly counts as "remote". :-) Enjoy, DoN. -- Email: | Voice (all times): (703) 938-4564 (too) near Washington D.C. | http://www.d-and-d.com/dnichols/DoN.html --- Black Holes are where God is dividing by zero --- |
Ovens/Furnaces in the HSM/Woodworking Shop
Too_Many_Tools wrote:
"Basic forging and blacksmithing can be handy at times. And or course, powdercoating. " What temperatures are we talking about here? TMT Forging and blacksmithing requires steel to be a red heat-around 1500degF, I would guess. Powdercoating is much like a kitchen oven, 375 to 450 deg, depending on the type of powder used. PC often also requires a change in temp during the process, i.e., heat at 450 to flowout, and then cure at 400 for 20 minutes. -- Gary Brady Austin, TX www.powdercoatoven.4t.com |
Ovens/Furnaces in the HSM/Woodworking Shop
"Forging and blacksmithing requires steel to be a red heat-around
1500degF, I would guess. Powdercoating is much like a kitchen oven, 375 to 450 deg, depending on the type of powder used. PC often also requires a change in temp during the process, i.e., heat at 450 to flowout, and then cure at 400 for 20 minutes. " Thanks Gary for responding....I've been a fan of your oven building web site...great job! Is there any significant ventilation issues with powdercoating? I have not been around when it was done for my parts. Also a question for the group....I notice that Harbor Freight now carries a powdercoating oven...has anyone had any experience with it? http://www.harborfreight.com/cpi/cta...emnumber=46300 TMT |
Ovens/Furnaces in the HSM/Woodworking Shop
I like to bake on enamel and epoxy finishes... makes 'em
nice and hard, and really does a great job with hammertone or crackle finishes. Use dark colors. Too_Many_Tools wrote: For applications I can think of heat treating, drying of parts, drying of painted parts and the occasional pizza ;)....is there any use that I am leaving out? |
Ovens/Furnaces in the HSM/Woodworking Shop
" I like to bake on enamel and epoxy finishes... makes 'em
nice and hard, and really does a great job with hammertone or crackle finishes. Use dark colors." Thanks for the addition. What temperatures do you use? TMT |
Ovens/Furnaces in the HSM/Woodworking Shop
Too_Many_Tools wrote:
Is there any significant ventilation issues with powdercoating? I have not been around when it was done for my parts. TMT Curing the powder puts off a significant amount of smoke. DON'T try this in your kitchen oven. It'll never be the same. I have an old kitchen oven in my shop for small stuff and it get stained where the smoke comes out. The smoke isn't a problem in the shop, but the shop is not attached to my house, and also not terribly well sealed, so I don't worry about it. The inside of the oven does take on some of the colors cured in it, though. -- Gary Brady Austin, TX www.powdercoatoven.4t.com |
Ovens/Furnaces in the HSM/Woodworking Shop
I like to bake on enamel and epoxy finishes... makes 'em
nice and hard, and really does a great job with hammertone or crackle finishes. Please tell me more. I am about to paint a model engine and I would really like to know how this works. Is this process benigh enough that I can do it in my kitchen oven? I painted one model with rusteloum paint a few years ago and it took a long time with a heat lamp before the paint was hard. I did some tests with newer rusteloum paint and it seems to harden much faster. In fact it seems to be a much better paint too. |
Ovens/Furnaces in the HSM/Woodworking Shop
"Chuck Sherwood" wrote in message ... I painted one model with rusteloum paint a few years ago and it took a long time with a heat lamp before the paint was hard. I did some tests with newer rusteloum paint and it seems to harden much faster. In fact it seems to be a much better paint too. Might I suggest you invest in a small appliance cup, and use a commercial enamel (like Rustoleum) with some additional hardener. The hardener may be had at any automotive paint supply. Wear breathing protection, and use lots of ventilation. The hardeners are quite toxic. But BOY do they do a nice job. The film turns as hard as crystal, and SHINES! I did my 8N tractor this way, and even scraping live oak limbs didn't rub off the paint. LLoyd |
Ovens/Furnaces in the HSM/Woodworking Shop
Might I suggest you invest in a small appliance cup, and use a commercial enamel (like Rustoleum) with some additional hardener. The hardener may be had at any automotive paint supply. Please tell me: what is a small appliance cup? Do you mean a small spray gun? I assumed from the original posting that someone was using normal paint (maybe from a spray can) and then baking it to make it harder and more durable. I need to paint a model Hit-and-miss engine. I want to keep it reasonably simple. Spraying with a spray can and baking in my kitchen oven is reasonably simple. Not sure I can use a normal spray gun even though I do have a couple of them. If it gets too complex, I would opt to take it to a automotive paint shop and pay them to paint it. chuck |
Ovens/Furnaces in the HSM/Woodworking Shop
Chuck Sherwood wrote:
I need to paint a model Hit-and-miss engine. I want to keep it reasonably simple. Spraying with a spray can and baking in my kitchen oven is reasonably simple. Not sure I can use a normal spray gun even though I do have a couple of them. If it gets too complex, I would opt to take it to a automotive paint shop and pay them to paint it. chuck I didn't make the original comment about baking paint, but I've have very good luck with baking high temperature engine enamel. Apply it, let it dry, then bake it for an hour at 350deg. I did this once or twice in my kitchen oven without big problems. You might want to try a small sample to find out if it smokes excessively. The result, though, is a very hard surfaced paint that wears well, and is heat resistant to boot. Comes in a spray can, no need for a gun. -- Gary Brady Austin, TX www.powdercoatoven.4t.com |
Ovens/Furnaces in the HSM/Woodworking Shop
Chuck Sherwood wrote:
Might I suggest you invest in a small appliance cup, and use a commercial enamel (like Rustoleum) with some additional hardener. The hardener may be had at any automotive paint supply. Please tell me: what is a small appliance cup? Do you mean a small spray gun? No, that has to do with a sporting protective device for probably meaningless small appliances. snort, jo4hn |
Ovens/Furnaces in the HSM/Woodworking Shop
According to Chuck Sherwood :
Might I suggest you invest in a small appliance cup, and use a commercial enamel (like Rustoleum) with some additional hardener. The hardener may be had at any automotive paint supply. Please tell me: what is a small appliance cup? Do you mean a small spray gun? I'll wait for others on this, as I am slightly puzzled too. I assumed from the original posting that someone was using normal paint (maybe from a spray can) and then baking it to make it harder and more durable. I've done this with black wrinkle varnish. The baking (in my apartment's oven all those years ago) produced two effects: 1) A much finer wrinkle pattern. 2) It got much harder much quicker. Without the baking, it took forever for the paint to get hard. With it, as soon as it cooled down from the oven it was quite hard. Good Luck, DoN. -- Email: | Voice (all times): (703) 938-4564 (too) near Washington D.C. | http://www.d-and-d.com/dnichols/DoN.html --- Black Holes are where God is dividing by zero --- |
Ovens/Furnaces in the HSM/Woodworking Shop
I've done this with black wrinkle varnish. The baking (in my
apartment's oven all those years ago) produced two effects: I don't want my paint to wrinkle. Will a non wrinkle paint still be smooth if its baked? What temp did you use for baking? I typically use a little bondo to fill the pits in the castings. I think this will limit the max baking temp. |
Ovens/Furnaces in the HSM/Woodworking Shop
According to Chuck Sherwood :
I've done this with black wrinkle varnish. The baking (in my apartment's oven all those years ago) produced two effects: I don't want my paint to wrinkle. Will a non wrinkle paint still be smooth if its baked? As long as you don't bake it too hot. It has been a long time, (this had to have happened somewhere between 1964 and 1974, while I was in that apartment). The wrinkle enamel was designed for the purpose. IIRC, you sprayed a rather thick coat, let it dry for fifteen minutes (or was it an hour), and then sprayed another coat of equal thickness -- while the first was still quite soft. The outer coat formed a skin which wrinkled as the underlying paint dried. IIRC -- the rattle can had a baking temperature listed on it. What temp did you use for baking? Whatever the label on the rattle can suggested. This has been at least thirty years ago. And the temperature would be different for different paints, anyway. I typically use a little bondo to fill the pits in the castings. I think this will limit the max baking temp. If the composition of the paint does not limit it. If the rattle can's label does not suggest any baking temperature, go the the maker's web page and look for a FAQ file -- which *might* have that information. Enjoy, DoN. -- Email: | Voice (all times): (703) 938-4564 (too) near Washington D.C. | http://www.d-and-d.com/dnichols/DoN.html --- Black Holes are where God is dividing by zero --- |
Ovens/Furnaces in the HSM/Woodworking Shop
If the rattle can's label does not suggest any baking
temperature, go the the maker's web page and look for a FAQ file -- which *might* have that information. Already tried that without any luck. I have been experimenting with rusteloum spray cans and they seem to harden much quicker now than then my previous experience. I suspect the formula is much different because the directions are also quite different. |
Ovens/Furnaces in the HSM/Woodworking Shop
A 10,000 degree F furnace ?
Don't I wish. I wish I had a 6000 degree Rankine (5,540 F) furnace. Martin Martin Eastburn @ home at Lions' Lair with our computer lionslair at consolidated dot net NRA LOH & Endowment Member NRA Second Amendment Task Force Charter Founder Morris Dovey wrote: Too_Many_Tools (in ) said: | For applications I can think of heat treating, drying of parts, | drying of painted parts and the occasional pizza ;)....is there | any use that I am leaving out? Hmm (scratching head). How about firing ceramics, working with enamels/glazes, glasswork, making tea? One of the furnaces in my shop is powered by a moderately hot (~6000 degrees Kelvin) remote unshielded fusion reactor. In the summertime I use it for brewing tea. :-) -- Morris Dovey DeSoto Solar DeSoto, Iowa USA http://www.iedu.com/DeSoto ----== Posted via Newsfeeds.Com - Unlimited-Unrestricted-Secure Usenet News==---- http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups ----= East and West-Coast Server Farms - Total Privacy via Encryption =---- |
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