RkyMtnHigh 0 #1 February 16, 2005 at 1600 degrees? will the metal crack the glass? Just curious _________________________________________ Quote Share this post Link to post Share on other sites
bobsled92 0 #2 February 16, 2005 I guessing you had reason for the question. ...Discovery channel? or new hobbie?_______________________________ If I could be a Super Hero, I chose to be: "GRANT-A-CLAUS". and work 365 days a Year. http://www.hangout.no/speednews/ Quote Share this post Link to post Share on other sites
RkyMtnHigh 0 #3 February 16, 2005 hobby...looking at buy the kuhl fixin's to make fused glass stuff with a metal closing pin sunk inside... _________________________________________ Quote Share this post Link to post Share on other sites
billvon 3,123 #4 February 16, 2005 >looking at buy the kuhl fixin's to make fused glass stuff with a metal closing pin sunk inside... Aha. Thought you meant mixtures of metal/glass. Solid metal/molten glass was a problem for a while when vacuum tubes were first being developed, because they needed a way to take molten glass, mold it around solid pins and get an airtight seal. It took a while but they figured it out. So it's definitely doable. Quote Share this post Link to post Share on other sites
PhreeZone 20 #5 February 16, 2005 Look at the forging temperature of the alloy you are looking to work with. I've got very limited metals back ground but I remember that different versions of stainless all react at different temps. Some react as low as I think about 1200-1300 degrees and others might need upwards of 2400 degrees.Yesterday is history And tomorrow is a mystery Parachutemanuals.com Quote Share this post Link to post Share on other sites
RkyMtnHigh 0 #6 February 16, 2005 Quote>looking at buy the kuhl fixin's to make fused glass stuff with a metal closing pin sunk inside... Aha. Thought you meant mixtures of metal/glass. Solid metal/molten glass was a problem for a while when vacuum tubes were first being developed, because they needed a way to take molten glass, mold it around solid pins and get an airtight seal. It took a while but they figured it out. So it's definitely doable. sheets of glass which are fused...add metal closing pin...more sheet of glass...is that chemically possible or would the pin crack the glass? _________________________________________ Quote Share this post Link to post Share on other sites
Snowflake 0 #7 February 16, 2005 Yes .......especially since your not going to need to heat up the closing pin too much. Heat/melt the glass rod first then you can stick the pin in and shape the glass around it. My bud blows glass and was messing around with doing what your talking about, but it other things came up. If you want his email addy PM me and you can ask him all the questions you want. Quote Share this post Link to post Share on other sites
billvon 3,123 #8 February 16, 2005 >is that chemically possible or would the pin crack the glass? There is chemically no problem at all; standard glass (silicon dioxie/sodium carbonate) is relatively inert. You might have to do it in an inert-gas environment depending on the material and finish of the pin. The issue you will have is a physical one; glass is difficult to solidify in large amounts even without a pin inside. A glassblower should be able to give you some hints on how to do it without cracking the end product. You're also going to have to deal with entrapped air/gas if you do a laminate and melt it all together, unless you do it in a vacuum. Quote Share this post Link to post Share on other sites
metalslug 36 #9 February 16, 2005 A colleague of mine, with an MSc Chemistry, has this opinion: It is unlikely that it would crack the glass. Although glass appears solid, strictly speaking it is a very viscous liquid, which means it should be able to handle the small amounts of expansion and contraction of a heated and cooled pin, especialy if the glass and pin are heated and cooled together. A very hot pin placed on cold glass might be a problem, but that might not apply here. Quote Share this post Link to post Share on other sites
happythoughts 0 #10 February 16, 2005 This always confused me. If you heat sand, you get glass and make bottles. If you throw a bottle into the bonfire, it becomes sand again. wtf is that all about? It should become a different bottle. Quote Share this post Link to post Share on other sites
jceman 1 #11 February 16, 2005 Quotehobby...looking at buy the kuhl fixin's to make fused glass stuff with a metal closing pin sunk inside... Yvonne at Deland has been trying to do this for quite a while. She makes some of the prettiest glass necklaces around, but has not had any luck with embedding a closing pin; it seems as though the pin acts as a heat sink and causes the glass to cool unevenly resulting in cracking/shattering. Faster horses, younger women, older whiskey, more money. Why do they call it "Tourist Season" if we can't shoot them? Quote Share this post Link to post Share on other sites
turtlespeed 226 #12 February 16, 2005 Quote It should become a different bottle. Yeah - Like herradura or Patron! (How ya doin Vinny)I'm not usually into the whole 3-way thing, but you got me a little excited with that. - Skymama BTR #1 / OTB^5 Official #2 / Hellfish #408 / VSCR #108/Tortuga/Orfun Quote Share this post Link to post Share on other sites
Kris 0 #13 February 16, 2005 QuoteYeah - Like herradura or Patron! (How ya doin Vinny) Oooohhhhh....that was evil, Clint. *high-fiving you*Sky, Muff Bro, Rodriguez Bro, and Bastion of Purity and Innocence!™ Quote Share this post Link to post Share on other sites
larsrulz 0 #14 February 16, 2005 QuoteQuotehobby...looking at buy the kuhl fixin's to make fused glass stuff with a metal closing pin sunk inside... Yvonne at Deland has been trying to do this for quite a while. She makes some of the prettiest glass necklaces around, but has not had any luck with embedding a closing pin; it seems as though the pin acts as a heat sink and causes the glass to cool unevenly resulting in cracking/shattering. This is the problem. Glass and stainless steel have considerably different coefficients of thermal expansion and thermal conductivity, so it will be next to damn hard to get them to agree. This is why things like metal-matrix composites have to have controlled cooling. If you can do this in an inert-gas chamber where you can precisely control the cooling rate, then this could be possible, but I know jack and shit about actual glass working...I stick to the fibrous type. I got a strong urge to fly, but I got no where to fly to. -PF Quote Share this post Link to post Share on other sites
AndyMan 7 #15 February 16, 2005 If she's trying to encase a closing pin in glass, why does the closing pin need to be metal? It seems to me she's always going to have cooling issues because of the wide range of thermal expansion issues, so why not pick to materials that are closer? Specifically, I'm thinking of some kind of clay, porcelain or other earthenware that can be made to appear as metal. _Am__ You put the fun in "funnel" - craichead. Quote Share this post Link to post Share on other sites
