Katanax X-FLUXER, Руководство пользователя

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15
Agitation and
pouring of the
melt
A mixing motion of the sample and flux is produced by the alternate rotation of a
stepper motors located behind the crucible holders. This motor drives push-bars,
which in turn drives the crucible holders with a left-to-right motion to agitate the
melt.
At the moment of pouring, the rocking motor rotates the crucible holder to an
adjustable pouring angle, at an adjustable speed. The melt pours naturally into
the molds, and this can be helped with an optional shaking of the crucible in
pouring position.
The crucible holder is then automatically brought back to the vertical, ready for
another fusion.
The pouring step can also be completely disabled, for procedures such as
pyrosulfate or peroxide fusions, which do not need immediate transfer of the hot
melt into another container.
Cooling
When the pendulum motion system moves the platinumware holders out of the
furnace, the molds are stopped just above cutouts. At a programmed moment,
blowers located underneath those cutouts push fresh air upwards and under the
molds, to cool them.
Solution
agitation
Making solutions requires that the instrument be fitted with the optional solution
agitation module, item number KP8001A.
IMPORTANT: Before attempting to make solutions, it is necessary to remove
the mold holders, which can otherwise interfere with the top of the beakers.
When making solutions, the hot melt is poured directly into beakers containing an
acid. Those beakers are to be placed into the agitation wells before the beginning
of the fusion. This acid solution must be agitated to improve the dissolution speed
of the crystallized flux and sample.
To do so, alternatively powered magnetic coils produce a rotating magnetic field
under the beakers. By placing a laboratory-type magnetic stirring bar in the acid
before fusion, the solution will agitation will be automatically started at the
appropriate moment..