I bought some stuff from some scretchy site, i ended up getting 15c activation temp. The wire is very springy to change the shape at room temp.But no amount of heat or cold does anything. edit: HAHAH was from you guys, my mistake on buying 15c activation temp! Buying some more at 40 and 80! edit: Also i have the wire in the freeze, coiled up it up with zip ties. I cut off the zipties, it kept its shape, and a few moments after getting the wire out into the room, about 33c, it sprang back into shape. Basically a reverse version :) Cool stuff!
+Christopher Banacka Yes that's why I warn on the 15C listing that it is a little different, but try bending some so there is resistance and holding it over a flame, it continues to get even stiffer and will shoot out from your hands. It has potential.
Yes. The alloys with a lower transition phase temp exhibit more force. In that sense the 15C wire is more powerful than the 40C which is better than the 80C wire. It is possible to have wire down to -20C phase. However, there are practical implications due to ambient temps. I usually recommend the 40C wire for its performance.
+Vaughn Blaylock You would weld it to itself using a dc pulse welder in an oxygen free atmosphere. We don't have the equipment to do it well at the moment, sorry.
the lower the transition phase the less ductile at the same temperature. Elasticity is similar across the board but you really need to try a sample pack to understand the difference. Get sample pack here: nexmetal.com/collections/superelastic-alloys/products/nitinol-shape-memory-wire-sample-pack
it begins to transition at around 20C and simply has more force the higher the temperature goes. Any transition temp wire can take a higher heat immediately, it will react more vigorously.
potentially by repeat cycling. But more likely you need an alloy composition that is predisposed to this. We're yet to come across a good one that will 2-way.
finally . Thank you.
+Mars Seeker more to come
I bought some stuff from some scretchy site, i ended up getting 15c activation temp. The wire is very springy to change the shape at room temp.But no amount of heat or cold does anything.
edit:
HAHAH was from you guys, my mistake on buying 15c activation temp! Buying some more at 40 and 80!
edit: Also i have the wire in the freeze, coiled up it up with zip ties. I cut off the zipties, it kept its shape, and a few moments after getting the wire out into the room, about 33c, it sprang back into shape.
Basically a reverse version :)
Cool stuff!
+Christopher Banacka Yes that's why I warn on the 15C listing that it is a little different, but try bending some so there is resistance and holding it over a flame, it continues to get even stiffer and will shoot out from your hands. It has potential.
Does the transition temperature affect how strong the wire can push/pull itself back to it's original shape?
Yes. The alloys with a lower transition phase temp exhibit more force. In that sense the 15C wire is more powerful than the 40C which is better than the 80C wire. It is possible to have wire down to -20C phase. However, there are practical implications due to ambient temps. I usually recommend the 40C wire for its performance.
Do you provide loops of nitinol? In other words, do you do the welds there at your factory, or would I need to do this myself?
+Vaughn Blaylock You would weld it to itself using a dc pulse welder in an oxygen free atmosphere. We don't have the equipment to do it well at the moment, sorry.
Hi! Is it correct for me to conclude that the lower the transition temp ie 40C, the more elastic it is?
the lower the transition phase the less ductile at the same temperature. Elasticity is similar across the board but you really need to try a sample pack to understand the difference. Get sample pack here:
nexmetal.com/collections/superelastic-alloys/products/nitinol-shape-memory-wire-sample-pack
How is nitinol with a transition temp between the range 15C to 70C useful? How do we know how much to heat it up to for it to straighten up? Thanks!
it begins to transition at around 20C and simply has more force the higher the temperature goes. Any transition temp wire can take a higher heat immediately, it will react more vigorously.
hey dude , do have any idea the train this one way nitinol to two way shape memory ?
potentially by repeat cycling. But more likely you need an alloy composition that is predisposed to this. We're yet to come across a good one that will 2-way.
what is the tensil strength of the wires?
+simpatwork Sorry I don't have the equipment to test that. Generally speaking NiTi is very strong.
Thank you!
what is the price of nitinol compared to other metals?
Depends on the wire, you can access it here:
nexmetal.com/products/nitinol-niti-sma-muscle-wire
Where is your product page and where do we order the product from?
+Delicious DeBlair you can check out my eBay store at www.ebay.com/sch/m.html?_ssn=nexmetals&_nkw=nitinol and nexmetal.com
nexmetal I would be ordering it by the spool or not at all.
nexmetal.com/products/nitinol-niti-sma-muscle-wire
nexmetal I went to the page and could not find listed what I sought.
nexmetal I am not after a tiny 'sample wire' I am after a 10,000 foot spool. I'm not a hobbyist, but a serious machinist, manufacturer and engineer.
How about you do the testing in water ? I believe the reaction would be much faster .
+Mars Seeker Water reaction is faster, I like using the heat gun for demonstration as it is easier and cleaner for presentation purposes.