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8/13/2019 Quality Assuarace Lab and r
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Presented by-
SHIPRA MOHANTY
Summer Training from 3rd June to 24th
June10
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Ingots
Rods
Rolled products
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Hot rolled coils
Hot rolled plates
Cold rolled coils/strips
Cold rolled sheets
Corrugated sheets
Chequered sheets
New cold rolling mill products
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XRF & XRD
POT FLUX ANALYSER
ATOMIC ABSORPTION SPECTROMETER
SCANNING ELECTRON MICROSCOPE
POLARISING MICROSCOPE
ERICHSEN SHEET METAL TESTER
INSTRON 5569
MELTING FURNACE,MINIATURE ROLLING MILL,WIRE DRAWING
EQUIPMENT,FORGING PRESS,HEAT TREATMENT FURNACE ETC..
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In X-Ray Diffraction, x-raysof a known wave length are
used for examinations.
Using Braggs law, the
determination of lattice
spacing dhklwhich is
characteristic for any
crystallographic or
mineralogical phase, is done
by obtaining the reflection
angle, 2hklwith the help of
diffractometer.
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Used for non-destructive
chemical analysis of rocks,
minerals, sediments & fluids.
It works on x-ray
spectroscopic principles.
XRF generally cannot make
analysis at small spots, so itis typically used for bulk
analysis.
Due its low cost of sample
preparation, stability & ease
of use, its widely used foranalysis of major & trace
elements in rocks, minerals
etc.
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A pot flux analyser is
specially developed for the
needs of pot flux analysis &
bath ratio determination in
aluminium industries.
It includes a x-ray
diffraction system for
analysis of typical bathphases & x-ray fluorescence
channel for determination of
total calcium contents in
bath samples.
It is very cost effective as itdoes not requires external
water chillers.
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It is used to determine
the concentration of aspecific metal element
in a sample.
This spectroscopy can
be used to analyze over
70 different metals in a
solution.
It uses Lambert-Beer
law for its calculations.
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It images the sample surface by
scanning it with a high-energy beam
of electrons.It produces signals which give
information about the sample
surface topography, constitution &
other properties such as electrical
conductivity.
The types of signals produced by
SEM include secondary electrons,
back-scattered electrons(BSE),
characteristic x-rays,
light(cathodoluminescence),
specimen current & transmitted
electrons.
Due to very narrow electron beam,SEM micrographs have large depth
of field yielding a characteristic 3-d
appearance useful for
understanding the surface structure
of a sample
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These microscopes are commonly
known as ore microscopes since
they view thick polished specimensof rocks and minerals.
The rock ore is polished and only
the top surface is viewed. Since the
ore is thick, it is opaque and no
light is transmitted through it.
The ore microscope applies
incident polarized light to thespecimens surface which is
reflected back into the microscope
objective to be viewed in the
eyepieces.
Most polarizing microscopes
produce only transmitted polarized
light. This means they provide light
from the bottom and it transmits
through the thin section of
specimen on a microscope slide.
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It is a universal sheet metal
testing machine for research,
development & in process
testing.
The special feature of this
testing machine is the increased
drawing speed of the drawing
punch which can be adjusted inan infinitely variable manner &
independent of load up to
3000mm/min.
This is achieved by using a
separate oil circuit fed by pump
with high volumetricdisplacement.
An useful microscope with
illumination is also used to
make the detection of cracks
much easier.Manual sheet testing machine, 30kN
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Instron 5569 mechanical tester
is capable of a wide variety of
mechanical testing methods.The machine evaluates the
mechanical properties of the
metals using tension,
compression, flexure, fatigue,
impact, torsion & hardness
tests.
The data collection & analysis
including instrumental control
are performed by Instrons
Merlin software.
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INSTRON 5569 LOAD FRAME
Tension, compression, and 3- and 4-point
bending loading available 5 kN and 50 kN load cells
Displacement rates: .005 - 500 mm/min
Computer control and data collection
Automated data analysis capabilities
ASTM standard and custom test methods
available
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Process of reducing thickness or
changing cross
section by compressive forcesapplied through a
set of rolls.
Continuous casting into semi-
finished products
has economic benefits
Integrated mills are large,expensive facilities
with complete sequence of rolling
and forming
activities. Mini mills utilize scrap
metal.
Hot Rolling leaves a rough mill
scale on surfaceRemove HR mill scale by:
Acid etching (pickling)
Water blasting
Grinding
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