3 Short Description & Specifications
10 Minilab man-CH-PVF-C-V17-2
Short Description & Specifications 3
3.1 Application
The Minilab, Model PVF-C, is a multi-purpose instrument used to
determine strength properties of clay and/or chemically bonded
foundry sand specimens. The instrument may be used to create a
50mm x 50mm cylindrical test specimen and determine several sand
properties through various tests. (Note: the properties of Minilab sand
specimens are different than those of rammed sand specimens. The
compressive strengths of rammed and squeezed sand cannot be
compared on a 1:1 basis.) A vertically-moving piston applies pressure
on a sand specimen until failure. The force data is then displayed on a
digital operator panel on the front of the instrument.
3.2 Description
The Minilab, Model PVF-C, is capable of running many different sand
strength tests with additional fixtures and accessories that are easy to
connect to the instrument. These tests include green sand
compactability, compression strength, splitting strength, twin-
transverse shear strength, core transverse (bending) strength, and
others.
After placing the sand specimen in the strength accessory, the
operator selects the desired test and the piston places pressure on
the sand specimen until it breaks. The digital display panel shows the
strength value in N/cm
2
(various strength resolutions are specified by
test on the following pages). The machine may be calibrated as
necessary using spring forces and piston displacement. (See section
7.3)
To Next Page
Loading...
