| Investigations have been carried out to trace out the orzgm of non-metallic
inclusions in railway wheel ingots and rolled railway wheels, produced at Durgapur
Steel Plant. It has been shown from the X -ray studies that majority of the
inclusions originate from refractory ware. A laboratory survey has been made on
the properties of casting pit ware used in the plant, from four suppliers. In general,
j1roperties are not satisfactory as far as workmanship, coarse grog size in the brick
and variation in apparent properties are concerned. |
