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    Company
    • Company Profile
    • Certificates
    • Our Team
    • Company Details
    News
    Products
    • Inoculants for steel
    • Inoculants for graphitizing treatment of irons
    • Spheroidizers
    • Master alloys
    • Cored wire
    • Refining materials
    • Ferroalloys
    Engineering support
    Prevention of casting defects
    • Prevention of Defects in Steel Casting Process
      • High-alloy Steel Grades
      • Carbon Steel Grades
      • Low-alloy Steel Grades
      • Medium-alloy Steel Grades
      • Solving Problems Involved in Manufacturing Castings from Acid Steel
    • Prevention of defects in metallurgical products
      • Prevention of defects in steel making process
    • Prevention of Defects in Iron Casting Process
      • Gray Iron (GI)
      • Spheroidal Gray Iron (SGI)
      • Compacted Graphite Iron (CGI)
    Contacts
    Ещё
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        • Products
        • Inoculants for steel
        • Inoculants for graphitizing treatment of irons
        • Spheroidizers
        • Master alloys
        • Cored wire
        • Refining materials
        • Ferroalloys
      • Engineering support
      • Prevention of casting defects
        • Back
        • Prevention of casting defects
        • Prevention of Defects in Steel Casting Process
          • Back
          • Prevention of Defects in Steel Casting Process
          • High-alloy Steel Grades
          • Carbon Steel Grades
          • Low-alloy Steel Grades
          • Medium-alloy Steel Grades
          • Solving Problems Involved in Manufacturing Castings from Acid Steel
        • Prevention of defects in metallurgical products
          • Back
          • Prevention of defects in metallurgical products
          • Prevention of defects in steel making process
        • Prevention of Defects in Iron Casting Process
          • Back
          • Prevention of Defects in Iron Casting Process
          • Gray Iron (GI)
          • Spheroidal Gray Iron (SGI)
          • Compacted Graphite Iron (CGI)
      • Contacts
      • +7 (351) 210-37-37
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      Russia, Chelyabinsk, Vodrem-40, 25, 454901 Phone/Fax: +7 (351) 210-37-37
      npp@npp.ru
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      Z-GRAPH® inoculant for graphitizing treatment

      • Main
      • Product
      • Inoculants for graphitizing treatment of irons
      • Z-GRAPH® inoculant for graphitizing treatment
      • Inoculants for steel
      • Inoculants for graphitizing treatment of irons
      • Spheroidizers
      • Master alloys
      • Cored wire
      • Refining materials
      • Ferroalloys
      Download catalog (.pdf)

      Our specialists will answer any of the questions that are of interest to you
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      Methods of inoculation:
      ladle inoculation
      metal stream inoculation (MSI)
      cored wire treatment
      • Z-GRAPH® inoculant for graphitizing treatment
      • Description
      • Packaging
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      Description

      The grades of this inoculant are as follows: Z-GRAPH®, Z-GRAPH®ТМ, Z-GRAPH® ТР and Z-GRAPH®R

      When graphite flake cast iron produced in EA furnaces is used for making castings, particular problems may arise. Often they are caused by local superheating, high casting speeds, and a large amount of scrap and various carburizers in charged materials. In addition, it increases the chilling tendency for cast irons, and the likelihood of appearance of gas- and shrinkage-related porosity defects. It also worsens their workability.

      To solve the abovementioned problems, our company has developed a line of inoculants under the trademark Z-GRAPH® for treating irons produced in electric-arc furnaces.

      The graphitizers contain different concentrations of Ba, Mn, Ca, Zr. The Z-GRAPH® R graphitizer contains cerium (Ce) and lanthanum (La) instead of barium.

      The chemically active elements contained in the inoculants affect cast irons by refining their graphite inclusions on the one hand, and increasing their amount on the other. As a result, the mechanical properties of cast-iron castings improve in all their cross-sections. The presence of Zr and Ba in the first three inoculants makes it possible to produce thin-walled castings free of chilling defects, neutralize the harmful influence of nitrogen that leads to the formation of gas- and shrinkage-related porosity defects.

      The inoculants are used to efficiently treat cast irons having low carbon equivalent values.

      Use of the Z-GRAPH® TP inoculant for many years has proved efficient in treating cast irons used for manufacturing high-pressure equipment (hydraulic distribution valves and high-pressure pumps). This inoculant increases the density of cast irons thus improving the leakproofness of parts and components made from them.

      The Z-GRAPH® R inoculant has an optimum combination of REM and zirconium. It has the unique property of influencing the formation of favorable finely dispersed carbide phases during the crystallization of special-purpose wear resistant cast irons. Its use for ladle treatment of irons that are used for manufacturing parts and components for mining equipment makes it possible to essentially improve their performance characteristics. The final product of such treatment is wear-resistant chrome iron.

      Standard sizes of inoculant particles:

      • 0.3-2 mm for inoculants introduced into the molten metal as it enters a ladle
      • 2-6 mm or 1-10 mm for inoculants placed at the bottom of a ladle
      • 0.2 -0.8 mm for inoculants introduced into the molten metal as it enters a mold

      In the case when molten metal is poured into a ladle, 1-3 kg of inoculants is consumed per 1 t of iron. In the case when molten metal is poured into a mold, twice as small an amount of inoculants may be consumed.

      Packaging
      Packaging
      • PE-lined big bags with capacities of 0.5 and 1.0 tons
      • Paper bags with capacities up to 25 kg
      • Cored wires
      Download
      Z-GRAPH
      1.7 Мб

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      Inoculants for steel
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      Cored wire
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      Ferroalloys
      Contacts


      +7 (351) 210-37-37
      npp@npp.ru
      Russia, Chelyabinsk, Vodrem-40, 25, 454901 Phone/Fax: +7 (351) 210-37-37
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