flak monkey
|
| posted on 11/3/06 at 02:59 PM |
|
|
Is where its melted fully.
Obviously at 4.5%C its no longer a steel, more likely cast iron at those levels of carbon.
The eutectic point can be moved through the addition of varying alloying elements.
Eutectic isnt the general melting point, as there are many melting points for any given alloy (depending on its exact constitution), but it is the
ratio at which the constituents in a certain alloy give the lowest melting point. Every alloy has a eutectic point, most easily spotted in two element
alloys on a equilibrium diagram, once you get over 2 the diags get hugely complex and 3D.
The eutectic point of a tin/lead alloy (around60/40%) is responsible for the very low melting point of solder (far lower than the melting point of
either tin or lead).
[Edited on 11/3/06 by flak monkey]
Sera
http://www.motosera.com
|
|
|
|
|
Peteff
|
| posted on 11/3/06 at 03:08 PM |
|
|
It's near enough for me, I like to keep things simple. I've used eutectic solder and it doesn't go through an intermediate paste
stage it goes from solid to liquid as soon as it reaches it's melting point. It's only a name they give it to show it has this
characteristic.
[Edited on 11/3/06 by Peteff]
yours, Pete
I went into the RSPCA office the other day. It was so small you could hardly swing a cat in there.
|
|
|
flak monkey
|
| posted on 11/3/06 at 03:11 PM |
|
|
quote:
Originally posted by Peteff
...I've used eutectic solder and it doesn't go through an intermediate paste stage it goes from solid to liquid as soon as it reaches
it's melting point.
Yep, thats the other chracteristic of a eutectic alloy:
Lowest melting point
No interstage 'slushy' (technical term that  ) transition stage
Sera
http://www.motosera.com
|
|
|
britishtrident
|
| posted on 12/3/06 at 02:29 PM |
|
|
source http://lotuseleven.org/
 
Rescued attachment Chapmanframe.JPG
|
|
|
scutter
|
| posted on 24/5/06 at 03:50 PM |
|
|
So what was the answer? Yes or No? for my BEC.
ATB Dan.
|
|
|
JoelP
|
| posted on 24/5/06 at 04:04 PM |
|
|
cant help specifically, but im using a mix of 25mm and 19mm round, all in 16g.
|
|
|
scutter
|
| posted on 24/5/06 at 04:07 PM |
|
|
16g is working well in my CEC, just curious for the BEC.
Dan
|
|
|
