Our Customer Speaks

  • “ We are purchasing DPIC, ALLOY STEEL etc., for More than 10 years and found that their quality is up to our satisfaction. ” ARS Steel - K.Shrineevas Meera Reddy
  • “ Shiva Alloy rolls Product Quality is good.” Fernando
  • " Good and well designed product and Quick Delivery " Vel

Manufacturing Process and Technology

  • Metal Rolls manufacturing process starts with incoming materials (Metal scrap, Pig iron, alloys) chemical test for conformity with the standards of the factory.
  • The approved incoming material is then sent to the Melting shop, where furnace feed is prepared according to required Metal Rolls. Then the material is melted in the
  • Induction Furnaces.
  • Molten metal is then poured into small samples for each and every heat and chemical analysis is done through automatic emission spectrometer.
  • If the chemical composition is accurate as required, molten metal is tapped from the induction furnaces to the moulds for static/centrifugal casting
  • (whichever required). The casting method is determined by the use of the Roll and alloy percentage present in the metal.
  • Heat treatment of Metal Rolls is carried out for the required materials to relieve internal stresses and a fine microstructure is obtained with improved mechanical
  • properties. The treatment conditions are subject to Roll material and size.
  • After the heat treatment, Metal Rolls are examined from every lot in order to maintain quality of Shiva Rolls. The samples undergo microstructure analysis, hardness
  • and mechanical tests.
  • The next process is machining, the Metal Rolls are passed on to the machine shop to obtain the desired dimensions. Ultrasonic tests also takes place during machining
  • to check for any physical defects like cracks and control the internal stresses.
  • After the Metal Rolls are machined, a final inspection is done and passed on to the packing section for special wooden packing.