PowerPoint Presentation
4 Months Industrial Training8th Semester At Premier Industry
Pvt. Ltd. Industry ProfileWas established in the year 1964Engaged
in manufacturing and supplying an impeccable assortment of C.I.
Castings for Automobile, Disel Engines, Pumps, Engineering
Products.In Manufacturing Facility, it have a state-of-the-art
manufacturing unit with all the requisite machines and latest
technology.Products Supplier and Manufacturerci castings Diesel
engine partsGeneratorsCast productsGenerator setsFiltersGenerator
spare . Sand Plant
This is basically used to for the automation of the sand
preparation for the casting process.Sand is collected in knockout
and moved to elevator via drum conveyorSand is then moved to the
sieve seperating stone from sand
This sand is moved via conveyor to the hooper of where new sand
and old sand are mixed.
Again this sand is moved to the elevator and is piled in moller
where the sand is mixed with water and other agent. This sand is
filled in cop and drag. Preparation of sand in Muller
Sand that is Green Sand required for casting is prepared ny
mixing its constituents in muller m/c..Sand is mixed with water,
betonite (binding agent) , coal dust (demoisturiser) and
molases.
Moulding Material Major part of moulding material in
casting70-85% silica sand10-12% betonite3-6% water Coal dust
(demoisturiser) Moulding Machine
It is used to create cavity in the mould Cavity is replica of
the core.Cop and Drag are placed simultaneously and mold material
is filled from sand plant.
Melting of Metal
Induction furnaces are the most common type used by both ferrous
and non-ferrous foundries. Copper coils heat the metal using
alternating currents. The flux reacts with impurities.Capacity
300kg &500kgtemperature= 1400-1500 degree. Flux is added to
remove slag from molten metal
Pouring of MetalAfter melting of metal molten metal is poured in
the mould cavity which is replica of core. Before pouring
provisions are made for the escape of dissolved gases . The gating
system should be besigned to minimize the turbulent flow and
erosion of mould cavity. The other important factors are the
pouring temperature and pouring rate Solidification and Cooling The
properties of the casting significantly depends on the
solidification time cooling rate.Shrinkage of casting, during
cooling of solidified metal should be restrained by the mould
material, otherwise internal stresses may develop and form cracks
in casting.Proper care should be taken at the design stage of
casting so that the shrinkage can occur without casting defect.
Shot Blasting Process
After cooling and solidification shot blasting is done in order
to remove extra material from the cast product.Abrasive shot or
sheet shots are used to remove material Grinding ProcessAs shot
blasting is done cast products are checked thoroughly for the extra
material . Grinding is carried out to remove that extra material.
InspectionVisual Inspection- Cast product is visually inspected for
the cracks and deforms etc.Sound test - This is a rough test to
indicate a flaw or discontinuity in a casting. The casting is
suspended from a suitable support free of all obstructions and
tapped at various places on its surface with a small hammer. Any
change in the tone produced indicates the existence of a flaw. Some
other methodsMPT (Magnetic Particle test )Penetrant testUltrasonic
testingRadiongraphy testing etc..
