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Skip Williams

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Everything posted by Skip Williams

  1. Gerald, Here's a link to the WorldCat record for "The knight and the blast furnace" Longwood and Duke are the closest. https://www.worldcat.org/title/knight-and-the-blast-furnace-a-history-of-the-metallurgy-of-armour-in-the-middle-ages-the-early-modern-period/oclc/186724458&referer=brief_results
  2. According to an old thread the blowers are the next step up in CFM. Ametek 116643. http://catalog.ametekdfs.com/ecatalog/blowers/en/116643-01
  3. I used to have a half dozen of these blowers that were used for smelting classes. The blower has an internal 0 ohm to 10k ohm potentiometer that you can adjust via a hole in the metal case. If it was adjusted to the 10k ohm end of the range you might see the issues you're having! Ametek uses the term sensitivity adjustment in their documentation. This schematic diagram is reproduced from some notes I made years ago and years ago.
  4. I think you 'll be just fine. Jerrod and others can tell you how long and hot to soak the speroidized material to put all the carbon back into the equation. You're doing good so far!
  5. After etching with nital both ferrite and cementite will be about equally bright. You'll have to use Picral, Klemm's, or Baraha's reagent to stain them differentially. Revealing the Microstructure of Tool Steels, March 15, 2012 by George Vander Voort, Figure 3 https://vacaero.com/information-resources/metallography-with-george-vander-voort/1174-revealing-the-microstructure-of-tool-steels.html There is a cheat called 'heat tinting' (J. E. Stead, 1905?) which is to heat the sample until the temper colors show. IIRC, ferrite will oxidize at a much lower temperature than cementite. But t
  6. Yes, the 1095 is spheroidized annealed. It (sometimes) comes that way from the manufacturer.
  7. C53400 Phosphor Bronze B-1 https://alloys.copper.org/alloy/C53400
  8. According to the internet hss-dmo5= m2 = din 1.3343. Attached is a representative data sheet from Edelstahl Best Skip 1.3343_en.pdf
  9. Sebastiaan Pelsmaeker summarized Ypey's opinion of this sword as follows from Sebastiaan B.M. Pelsmaeker BA Master Thesis, Weapons of Princes, Weapons of War? An experimental analysis of pattern-welded swords from northwestern Europe, 400-1100 AD Number V Find location: The Waal near Nijmegen, the Netherlands. Date: 9th century AD Literature: Ypey 1983, pp. 199-201. Other information: This sword is similar to a type IV in appearance, however, in construction it is different the other swords. First it should be noted that this sword has many small faults; indicating either an ine
  10. I bit more information on these swords from Reallexikon der Germanischen Altertumskunde, Volume 5, pp. 199-200 (google books) J. Ypey: "Damaszierung"; in: Reallexikon der Germanischen Altertumskunde", Band 5, S. 191. The sketch for the Iversheim sword (or both swords) might originate in: Das fränkische Gräberfeld von Iversheim : Kreis Euskirchen Christiane Neuffer-Müller. Published: Berlin : G. Mann, 1972. Note: At head of title: Römisch-Germanische Kommission des Deutschen Archäologischen Instituts. Rheinishces Landesmuseum Bonn des Landschaftsverbandes Rheinland. Physical De
  11. Looks like a perfect bloom! Congratulations
  12. Jan, The intermediate structure on your carburized bar will be pearlite with widmanstatten and allotriomorphic(GB) ferrite. A polished section will look similar to the upper half of the example below; this is a hearth steel axe-bit welded(poorly) to a bloomery iron body.
  13. Thijs I totally agree with that thought. You mention in several publications that Gunter and yourself can control of the phosphorus content of the bloom. Are you doing this by altering the furnace design or are you accomplishing this by changing the smelting procedure?
  14. Thanks Admins, Looks like the loose cookies have been repaired and so far all is well!
  15. Thanks Admins, Looks like the loose cookies have been repaired and so far all is well!
  16. Testing today showed that there are problems signing in and signing out on the these combinations of software Windows XP sp3 and Chrome v.29 Windows XP sp3 and Firefox Windows 7 and Chrome 29 Windows 7 and Internet Explorer 10 I can confirm Bruce's post above about having to sign in from the homepage. In addition the symptoms seem to change depending on the state of the Remember Me checkbox (this is on XP and Chrome 29) Creating the ultimate 'test case' for this problem will be a bit difficult until I find the next bit of insight into how the system is intended to function.
  17. Hey Admins, For quite some time I've had problems signing into the forum. The work around seems to be to delete the cookies for the bladesmithsforum.com from the browser cache. BUT Right now the problem I'm having is that I can not Sign Out of the forum. The symptoms for the Sign In problem go like this. - visit the forum homepage. - click on the Sign In link - enter my credentials - unclick the Remember Me check box - click OK (or whatever the button says) --- This redirects me back to the forum home page but I am not logged in! --- If I enter an incorrect password I am redireted
  18. Hi all,I'm posting this for a good friend that is not a member of the forum. Please pass this info on to anyone who might be interested. Champion cast iron rivet forge with blower. Price $250 Location Natural Bridge Va. To work out the purchase and shipping details, Contact Tom Bradshaw tombradshaw@earthlink.net
  19. Don't fret, you'll soon get things sorted out. It seems that the iron is burning up and reacting with the clay walls, this creates an iron oxide rich glass. To solve the problem we need to have the iron melt in an area of the furnace that has a reducing atmosphere. The changes I would make are 1) keep the furnace filled to the top with charcoal and 2) move the iron rods away from the blowhole to about 2/3 of the distance across the furnace. With these changes the iron should melt and collect in the bottom of the furnace without coming into contact with an oxygen rich atmosphere.
  20. Hi All, The Ametek brushless AC blowers are the best. This type on Ebay is what you're looking for. 3 available! They also make DC brushless blowers that are variable speed but they usually have a bit of a whine (like this ). Yes they can run on AC, the electronics inside are the DC part. Make sure that you buy the power type(AC/DC) and voltage that you need. I do have the details to utilize the variable speed on this type blower if anyone needs it. Search Ebay for Ametek Windjammer for more examples.
  21. try this for operating instructions http://auberins.com/images/Manual/SYL-2362%20instruction%201.6.pdf Then combine that info with what is in the Sestos manual http://www.sestos-hk.com/english/download/d1s-en.pdf and you'll probably figure it out.
  22. That was a nice day in the forest. Come back anytime.
  23. Dave, I've seen some rather large 3 phase equipment running on the circuit described below. The only challenge is improvising a method to get the motor spinning in the right direction! Running 3-phase motors with 1-phase http://dcacmotors.blogspot.com/2009/04/running-3-phase-motors-with-1-phase.html +http://www.k3pgp.org/3phconv.htm
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