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I Forge Iron

Glenn

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Posts posted by Glenn

  1. Just finished my design of the adjustable anvil stand. 7" of infinate adjustment. Current limits of the anvil face is from 29" to 36" in height. You will have to join us Tuesday for the Blueprints to see the design. It will post here later for entry in the contest. What a reason to join in the Blueprent presentation on Tuesday October 31. Doors open at 8 pm eastern time USA and the show starts at 10pm eastern time.

    Click here to go to the Blueprints

  2. Give us more information,
    What are you going to use to anchor the base?
    How are you going attach it to the 6x6?
    What is the span of the "I" beam?
    What is the amount of weight you PLAN to lift?
    What is the maximum weight you WILL lift?

  3. The heat content of anthracite coal consumed in the United States averages 25 million Btu/ton (29 MJ/kg) (12,5000 BTU/lb), on the as-received basis (i.e., containing both inherent moisture and mineral matter). Reference.com


    That would mean that 15,000 BTU/lb divided by 12,500 BTU/lb means you have 1.2 pounds of anthracite to a pound of high BTU bituminous coal. Or you would need 2400 pounds of anthracite to 2000 pounds of bituminous coal to get the same heat. With the 100 pounds bags selling for the same price, you have to buy 24 bags of 12,500 BTU anthracite coal or 20 bags of 15,000 BTU coal to get the same amount of heat.


    Other terms having the same meaning are blue coal, hard coal, stone coal (not to be confused with the German Steinkohle), blind coal (in Scotland), Kilkenny coal (in Ireland), and black diamond. The imperfect anthracite of north Devon and north Cornwall (around Bude), which however is only used as a pigment, is known as culm, the same term being used in geological classification to distinguish the strata in which it is found, and similar strata in the Rhenish hill countries which are known as the Culm Measures.

  4. The analysis tells the story.

    Ash: impurities consisting of silica, iron, alumina, and other incombustible matter, left over when coal is burned.



    Volatiles: Smoke etc

    As blacksmiths, we want to buy heat. BTU's = HEAT. IF we wanted rocks, cllinker, or ash, or we should go to the gravel yard and buy rocks. Let's say you have a pound of 15,000 BTU/lb coal, and a pound of 13,000 BTU/lb coal. Divide 15,000 by 13,000 and you need 1.1538 pounds of 13,000 BTU/lb coal to give the same heat as a pound of 15,000 BTU/lb coal. This is 2307 pounds of 13,000 BTU/lb coal per 2000 pounds of 15,000 BTU/lb coal. That is a 300 pound difference in just BTU's. With the 100 pounds bags selling for the same price, so you have to buy 23 bags of 13,000 BTU coal or 20 bags of 15,000 BTU coal to get the same amount of heat. If there is a 1% ash difference between coal samples, that is 20 pounds of rocks, clinker, ash and junk per ton that you pay for but can not burn and provides no heat. Sort of like the fellow putting a cinder block in the bed of your truck before he adds the coal. When you calculate the money you pay for heat (BTU's) it makes things easy to understand. Or do you want to pay top dollar for this wonderful material that is left in the forge after the fire !!

    BTU: the heating value, determined in terms of BTU both on an as received basis (including moisture) and on a dry basis. Calorific value: expressed in Btu/lb on a dry basis.















  5. Good coal for blacksmithing is low ash, low sulfur, high BTU coal of a usable size for the forge. The numbers suggested for good coal are less than 7% ash, less than 1% sulfur and above 14,000 Calorific Value in BTU's. These are not hard numbers but guidelines. Available analysis shows ash content of coals listed from 3.7% to 22.4% ash, sulfur from 0.4% to 3.3% , and BTU's from 8,467 BTU's to 15,500 BTU's Calorific Value.

    Many blacksmiths like the Pocahontas No. 3 coal. Analysis from one sample of this coal from the Penn State coal sample database shows the following numbers.






    Type : Low Volatile Bituminous (lvb) State: WV Ash : 7.44% Sulfur: 0.64% BTU :14542 Volatile : 15.70% Carbon: 92.42% Reflectance: 1.8

    Seam : Pocahontas No. 3,












    There is a Pocahontas No. 3 in Virginia that has 15,006 BTU, and a Pocahontas No. 3 in West Virginia that has 13,953. Pocahontas No. 3 coal is not all the same due to the way it was formed. You have to look at the analysis to be sure what you are getting, is what you want. The analysis is usually available from the coal company when buying coal.


    Additional reference:

    BP0051 Good Coal
    BP0131 Coal, Coke, and Rocks

  6. As it is the fall season in the USA, when was the last time you checked the fluid levels in your vehicles? That is the oil, the radaitor for fluid and antifreeze, the tranny fluid, the diferential fluid, brake fluid, turn signal fluid, greased the greasable joints, and checked the battery fluid. Did you check the air pressure in the tires and the depth of the tire's tread?

    Just a reminder to check things now when you can easily go to the auto parts store for supplies or get tools from the garage. You do not want to get caught out on the road in bad weather.

    For those in the "other" side of the world, the same is ture only you have the heat to deal with as your entering your summer season.

  7. What about when the trailer starts "road walking", that is swaying from side to side on a straight section of road. Slow down and it gets worse, speed up and it gets worse. Now what do you do.



    I found this house trailer frame that was converted to a duel axle trailer.
    Would it be considered overloaded?

  8. Andy, is it not a cat fight, far from it.

    I see it as a discussion on "container damascus" that not only covers the subject, but also discusses how to survive the process.

    Thomas, Woody, Garey and others are knowledgable people, having been there and done it. Woody, Rich, and others know the safety aspect, and the results of poor judgment. Everyone is encouraged to add their opinion based on facts and or experience.

    The bottom line is open discussion, and everyone being able to go home with all their body parts in the proper places at the end of the day.

  9. Thomas, you are correct, as it is NOT a pipe bomb as the term is used in 2006, and I most likely did over react in my estimate of devistation. Thank you for bringing that to our attention.

    To clear up any confusion I suggest that we call this process "conatiner damascus" in the future.

    1" pipe filled with iron shavings and some drill filings with the ends capped and welded.

    A "welded" pipe (assuming a good weld) is a sealed container. As you pointed out water being included in the sealed container will "create steam and have a lot of gas for expansion *then* you are setting it to have enough energy to do some damage."

    I have not seen any specifics on this process, such as how much moisture can be present in the raw materials, how large a hole to leave in what size pipe for the gasses to escape, the wall thickness of the pipe, tubing, or container, and other important details that I would WANT to know before I started this type project.

    My point is that sealed containers are unforgiving, whether it is a 55 gallon drum, or pipe with the ends "capped and welded." I would much rather err on the side of caution and warn anyone about dangers than have the first person hurt.


    Container Damascus
    Thin wall tubing is much different from schedule 40 or schedule 80 pipe. One question that we need to address is what is the wall thickness of the container that is being used?
  10. The kill zone of a pipe bomb is greater than you realize. The injury zone from the concussion and the shrapnel is well beyond your personal space. If you survive, there is the police and BATF to deal with, as well as being labeled a "person of interest" or a terriorist.

    This is the point where EVERYONE needs to caution each other against the known dangers of certain actions. Individuals need to recognize the wisdom of those who are trying to protect us.

  11. BP0164 Small pry bar
    BP0165 Pry bar from car parts

    I would prefer ANY bar to bend rather than break. When a bar breaks, you are usually off balance and end up on the ground, and the bar throws both big and little pieces of shrapnel. If the bar is "soft", only the bar suffers a case of the bends.

    We need some help from the engineering types on calculating the pressure on the opject when using a pry bar. Show us the formula and give us an example to work with, say a 32" bar and a 100# pull at a 2" fulcrum. What happend when we use a 62" bar instead?

  12. But let's say you want a little better and have a couple extra dollars to spend.



    The 175# anvil is $200




    The large forge is $350

    Forge $350, vise $100, Anvil $200 = $650.
    Use the pan forge (above) and it brings the price down to $400.
    Throw in a bag of coal and a match and you are in business.





    Hammers and other tools are available.

    These are real numbers from the fall of 2006. All the items were for sale and being sold.

    Blueprint BP0300 shows you how to build your own forge, and other Blueprints show you how to build your own hammers, tongs, and other tools.

  13. I just came back from a hammer in. While there I looked at just what it would cost to get a forge, vise and anvil to get started in blacksmithing.




    For $150 you can get a nice pan forge with a blower




    For $15 you can get a rail road anvil




    The small vise is $20 the larger vise is $100.

    $150 for forge and blower, $15 for an anvil, $20 for a vise = $185

  14. Rich,
    Go to the post in the gallery and right click on the photo. Click on "properties" then Copy the "location" (bottom) URL. Now go to the forum where you post your text and type in . It should look like this: This will place the image into the post.

    Below the text box (where you type your comments) click on "manage attachments" and insert the URL you copied from above into the "Upload File from a URL" box and click on upload. This will put the thumbnail at the bottom of your post.

    To add additional photos, repeat as needed.

    Hope this helps.

  15. Let's brainstorm a bit, who uses 6" and larger pipe that would have drops? Pipeline companies, chemical industry, water company, sewer company etc etc. Drilling rigs maybe.

    Look for a grease drum from the local garage. What about an old hot water tank? They come in different diameters, just strip off the tin skin, strip off the rigid insulation and you have a thin wall pipe.

    CAUTION: Be careful when you cut into any closed container. Explosions can occure.

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