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WHEMCO Inc.

WHEMCO Inc. The Largest Rollmaker in USA. HISTORY. PARK CORPORATION. Whemco Inc. Owners: PARK CORPORATION Private US company : Financially rated: “Strong” Dunn & Brad Street rating: 5A1 ( D&B reference number 06-346-1115)

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WHEMCO Inc.

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  1. WHEMCO Inc. The Largest Rollmaker in USA HISTORY

  2. PARK CORPORATION • Whemco Inc. Owners: PARK CORPORATION • Private US company: • Financially rated: “Strong” • Dunn & Brad Street rating: 5A1( D&B reference number 06-346-1115) • $ 300 m turnover with 2500 employees PARK CORP

  3. Whemco Inc. Manufacturing

  4. Lehigh Heavy Forge Corporation • 100 years experience • 250 t forgings • Re built computerised oil hydraulic 10000 t press • 4000t press • Rolls up to 2000 mm dia145t maximum weight • Supplier of all US Navy Forgings • Bethlehem PA (1 hour Newark NJ) FORGED ROLLS

  5. Specialises in ship shafting Works in close co operation with LeHigh Heavy Forge inc Heat treatment of long shafts Machining of shafts up to 22 m Erie PA Erie Forge and Steel Inc.

  6. Whemco Steel Casting Inc. • 100 t arc furnace • Rolls cast directly on to metal mould • Back Up rolls are double poured:A unique “World Class” product • Selas Differentially Hardening • Steel Industry castings including slag pots and stainless steel coiler drums. • Midland Foundry Pittsburgh

  7. Whemco Steel Casting Inc. Cast Back Up Rolls: Solidification • Fast solidification against metal mould gives finer structures • Excellent central soundness achieved by diluting core with a low alloy steel • Combines best of static and duplex technologywith DH hardening • Up to 6 cast BU and 4 Section produced per week CAST BU ROLLS

  8. Whemco Steel Casting Inc. Cast Back Up Rolls: Dilution Process Bridging and segregation would occur if solidification was not interrupted. A hot lower alloy steel dilution of the core is used to remove segregates The improved temperature distribution allows Progressivesolidification to continue The final roll has an internal Soundnessequivalent to Forged roll

  9. Whemco Steel Casting Inc. Cast Back Up Rolls: Hardening Process • ALL BU rolls differentially hardened using a Selas furnace • Largest hardening unit in US and Europe • Unique double hardening treatment for 5% Cr BU rolls • Tough centre allows severe water quench to give up to 125 mm radial hardened depth

  10. Whemco Steel Casting Inc. Cast Back Up Rolls: Size capability

  11. Whemco Ohio Foundry Inc. • Spin casting technology • Rolls size up to 1100 mm • Rolls for hot strip mills • CNC finishing lathes • Static Cast Iron BU and Plate mill rolls • Ohio foundry at Lima Ohio

  12. Whemco Ohio Foundry Inc. • Investment programme • Melting furnaces • Computer modelling usedto ensure product consistency • Thermal analysis of each melt carried out to ensure consistency. • Produce full range of alloy white irons: IC; HiCr; and enhanced carbide rolls

  13. Whemco Ohio Foundry Inc.High Chromium Irons: Shell

  14. Whemco Ohio Foundry Inc.High Chromium Irons: Cores

  15. Whemco Ohio Foundry Inc.IDCP: Shells NHI Grades

  16. Whemco Ohio Foundry Inc.IDCP: Shells NHI Hardness

  17. Whemco Ohio Foundry Inc.Developments • New 5T and 2T furnaces will allow production of enhanced carbide and HSS rolls. • Enhanced carbide rolls with weights above 12500 kgm are already been produced. • Triple pour HSS rolls will be produced in 2006

  18. Duraloy Technologies Inc. • Horizontal spin casting of heat resisting steels • Petrochemical reactor tubing • Tunnel furnace rollers • Plate hardening furnace rollers • Scottdale PA ( 1hr South Pittsburgh)

  19. Duraloy Technologies Inc.Tunnel Furnace Rollers (CSP mills) • Wet Rollers • Used in heating zones • 28 Cr 48 Ni plus W • Refractory coated only tyre in contact • Operate up to 1260 ºC

  20. Duraloy Technologies Inc.Tunnel Furnace Rollers (CSP mills) • Dry Rollers(Ni Cr Co W alloys) • Replace wet rollers in shuttle zone. • 10% less purchases for warping and refractory replacement • Dry rollers in use >2years • Less energy used. Typically €85 k euro/yr • Reduced water treatment costs

  21. Steckel Mill Coiler Drums • High temperature cast alloy 20% Cr 30% Ni Resists deformation / crack propagation / scale pickup • Thermo-mechanical stress analysis Extends campaign life / reduces repair cost • Advanced foundry technology Produces largest size drum casting in the world BU Structure

  22. Whemco Inc. Summary Roll capabilities:

  23. Whemco Inc. Summary Key Strengths: • Financially strong corporate structure • 3rd largest Rollmaker in the western world • Manufacturer of unique range of “World Class” cast BU rolls • Largest Forgemasters in the western world • Target is a long term development of export sales and Service

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