stepliDieistilledwithappropriatecemountof
scooter
stepz
Toppundrcomesdownbcampress
hepowder
Bottompunchejects
steps
oreleasethetablet
Diehasa
specificdiameter
Tablet
isejected
p
Restricts the amount
d powderauerredindependant
onthepositionofthelowerpunch
upon
compressionairisremoved
fromtheparticles
s
punchrises
Toppunch
compression
Allows
Bottompunch
controls
amountof
powderletin
upondeformatioritstumed
UHasolid tablet
Yes
force lost to the sides
face that comes from the bottom
Force at the
top should be
equivalentto
theface at the
bottom
weloseforcelothe sides
becausethe sidesof thetop
Punchtouchesthesidesof
the die wall friction
K
D
This eq
gives the
ratio of
before
1 the
op t bottom
frictioncoefficient
depthofthe die
diameterof the
die
Ifpaandpb
arethesamevalue
thenaurratiowoubel
e
g
L
As
we compress
theporosityis
reduced
moresoluble
slowrelease
Foundin
theBP
Don'tneed
memorise
For tablets of 2 APIS
Both APIs are known
tointeract
so
you want
to keepthemseparated
fromeach other
Compressoriginal
tabletin a die then
compress that tablet
in another die so the
second API coats
the first