Raw material is classified based on its chemical composition and stored in individual bins, raw material is transferred from the bins to the furnace Manually. Induction furnaces are used to melt the metal, once the required temperature is obtained a chill sample is prepared and the chemical analysis is checked on a spectrometer.
Raw Material
Melting
Melting is done in induction Furness There are 3 sophisticated stress relieving furnace in the foundry shop to achieve the highest order of “A type graphite” pearlite structures that are symmetrical on the inner and outer diameters in terms of uniformity and hardness.
Pouring
In Pouring process the temperature is checked again in the holding furnace and metal is tapped into a ladle. The metal in the ladle is further transferred into a smaller refractory crucible designed to take metal equivalent to the casing weight, the crucible manually transfers the metal into the mold on the Centrifugal casting Machine.
Centrifugal Casting
In the centrifugal casting process, molten metal is poured into a spinning die. The die can be spinning horizontal axis depending on the configuration of the desired part. External structures and shaping can be cast in place to significantly reduce post-processing including machining . The centrifugal casting operations maintaining a high process capability.
Proof Machining
We have Two VTL Center to achieved Closed Tolerance & Machine Repetability , maintaining dimensinol accuracy , and Surface finish.
Fine Boring
We have 5 Super bore machine to give final inner diameter, which maintains dimensional accuracy within Tolerance range.
CNC Turning
The machined liner is then turned on a CNC Turning Center where all outer diameter and lengths are maintained, the next sequence of operations would be Rough Grinding, fine boring, Rough honing followed by Plateau honing and Finish grinding where as for fully finished Liners after CNC turning, fine boring followed by rough honing, fine CNC turning and plateau honing would be performed.
Grinding (Stage Inspection)
We have Cylindrical & centerless grinding machine in which Controll parameter achieved within Tolerance range.
Plateau Honing
We have plato honning maching in which roughness value, hattched Angle maintained inside the liner in closed range. The benefit of plato honning machine is to achieve required quality parameter , Ra,RZ value, Rpk,Rvk, Rk, Mr1, Mr2
Final Inspection
In final inspection stage we maintain & checked all parameter as per standard drawing. We have Digital micrometers, Digital vernier , Boregauge, Roundnesstester & pneumatic Plug gauge, pneumatic ring gauge which fullfill the final inspection criteria.
Marking
We have Laser marking machine which provide higly accurate and presice marking capability.
Packing
We have seprate packing department in which first liners move through visual inspection & washing. we have Automatic lamination machine for corrogeted boxes,striping machine , dewatring system , rust prevention system through which liner moved & packed in dust preventive room. We use Corrogeted wooden pallet & export wooden box.