Bending Plate Glass

Hi, weird question, can plate glass be bent slighly without a furnace?

I'm wondering about putting a slight (0.1=B0 or so) bend into the=20
centers of two pieces of 1/4" thick, 12" square plate glass. This is=20
so that the two could be pressed bowed-sides together and have a=20
slight pressure exerted between their centers (holding a sheet of=20
paper firmly in place, for instance.)

Could any good come from suspending a plate by its edges, placing a=20
weight in the center, and putting this into a kitchen oven?

"Mark Jones" wrote in message
...
Could any good come from suspending a plate by its edges, placing a
weight in the center, and putting this into a kitchen oven?

Unless your oven goes up to about 1400*F, you probably won't have much luck
with this project.

Far easier to do with plexiglas (acrylic sheet) at about 275F oven as I
recall.
Theoretically, you might be able to do glass in a self-cleaning oven that
went over 900F but holding it for a LONG time would probably damage the
oven. Plate glass starts moving at a somewhat higher temp than art glass so
the exact conditions would depend on the sag point (1100F from one source)
of the specific glass you were using. And the sag point is movement in
about 5 minutes, it gets stiffer really fast below that temp.

--
Mike Firth
Hot Glass Bits Furnace Working Website
http://users.ticnet.com/mikefirth/hotbit46.htm Latest notes

"Mark Jones" wrote in message
...
Hi, weird question, can plate glass be bent slighly without a furnace?

I'm wondering about putting a slight (0.1° or so) bend into the
centers of two pieces of 1/4" thick, 12" square plate glass. This is
so that the two could be pressed bowed-sides together and have a
slight pressure exerted between their centers (holding a sheet of
paper firmly in place, for instance.)

Could any good come from suspending a plate by its edges, placing a
weight in the center, and putting this into a kitchen oven?

Hmmmm gets me to thinking, The Kenmore Bake/Annealing oven line. I think
Sears would go for it.


Far easier to do with plexiglas (acrylic sheet) at about 275F oven as I
recall.
Theoretically, you might be able to do glass in a self-cleaning oven that
went over 900F but holding it for a LONG time would probably damage the
oven. Plate glass starts moving at a somewhat higher temp than art glass so
the exact conditions would depend on the sag point (1100F from one source)
of the specific glass you were using. And the sag point is movement in
about 5 minutes, it gets stiffer really fast below that temp.

And if you have looked at the Kenmore lines recently, the upgrade models
Kenmore Bake/Annealing/Enamel Setting oven
Kenmore Bake/Annealing/Sagging oven
and Kenmore Bake/Annealing/Fusing oven
with optional Black Front styling and upgrade to all stainless steel,
with water heating recuperation available Summer '05
--
Mike Firth
Hot Glass Bits Furnace Working Website
http://users.ticnet.com/mikefirth/hotbit46.htm Latest notes

"Henry Halem" wrote in message
...
Hmmmm gets me to thinking, The Kenmore Bake/Annealing oven line. I think
Sears would go for it.


Far easier to do with plexiglas (acrylic sheet) at about 275F oven as I
recall.
Theoretically, you might be able to do glass in a self-cleaning oven
that
went over 900F but holding it for a LONG time would probably damage the
oven. Plate glass starts moving at a somewhat higher temp than art glass
so
the exact conditions would depend on the sag point (1100F from one
source)
of the specific glass you were using. And the sag point is movement in
about 5 minutes, it gets stiffer really fast below that temp.

Mike Firth wrote:

And if you have looked at the Kenmore lines recently, the upgrade models
Kenmore Bake/Annealing/Enamel Setting oven
Kenmore Bake/Annealing/Sagging oven
and Kenmore Bake/Annealing/Fusing oven
with optional Black Front styling and upgrade to all stainless steel,
with water heating recuperation available Summer '05
--
Mike Firth


I'll be watching for the Kenmore Deep Fryer/Day Tank

Jack

nJb wrote:
Mike Firth wrote:

And if you have looked at the Kenmore lines recently, the upgrade models
Kenmore Bake/Annealing/Enamel Setting oven
Kenmore Bake/Annealing/Sagging oven
and Kenmore Bake/Annealing/Fusing oven
with optional Black Front styling and upgrade to all stainless steel,
with water heating recuperation available Summer '05
--
Mike Firth



I'll be watching for the Kenmore Deep Fryer/Day Tank

Jack


Mmmmm, Kenmore Turkey Magic....

"Mark Jones" wrote in message
news
nJb wrote:
Mike Firth wrote:

And if you have looked at the Kenmore lines recently, the upgrade models
Kenmore Bake/Annealing/Enamel Setting oven
Kenmore Bake/Annealing/Sagging oven
and Kenmore Bake/Annealing/Fusing oven
with optional Black Front styling and upgrade to all stainless steel,
with water heating recuperation available Summer '05
--
Mike Firth



I'll be watching for the Kenmore Deep Fryer/Day Tank

Jack


Mmmmm, Kenmore Turkey Magic....


Too late - already have turkey friers.
--
Mike Firth
Hot Glass Bits Furnace Working Website
http://users.ticnet.com/mikefirth/hotbit46.htm Latest notes

OMG the Dual Chamber model; use the small oven for a roast while your
masterpiece anneals!

Henry Halem wrote:
Hmmmm gets me to thinking, The Kenmore Bake/Annealing oven line. I think
Sears would go for it.



Far easier to do with plexiglas (acrylic sheet) at about 275F oven as I
recall.
Theoretically, you might be able to do glass in a self-cleaning oven that
went over 900F but holding it for a LONG time would probably damage the
oven. Plate glass starts moving at a somewhat higher temp than art glass so
the exact conditions would depend on the sag point (1100F from one source)
of the specific glass you were using. And the sag point is movement in
about 5 minutes, it gets stiffer really fast below that temp.




--
-Kalera
http://www.beadwife.com

Can I get one that has the optional light box/cooktop with built-in
digital camera?

Mike Firth wrote:
And if you have looked at the Kenmore lines recently, the upgrade models
Kenmore Bake/Annealing/Enamel Setting oven
Kenmore Bake/Annealing/Sagging oven
and Kenmore Bake/Annealing/Fusing oven
with optional Black Front styling and upgrade to all stainless steel,
with water heating recuperation available Summer '05

--
-Kalera
http://www.beadwife.com