FT-9 Braking Pinch Rolls from Project Sales Corp

1,044 views
882 views

Published on

FT-9, FT-10, and FT-23 is Powder Metallurgy Alloy Steel made by the Daewha Alloytech Powder
Metallurgy Process (Canning HIP). They provide superior wear resistance while maintaining toughness
and fabrication characteristics comparable to Rolling Steel such as D2, M2.
Mill rolls, Pinch rolls, Guider rollers, Table roller for Cold/Hot Rolling is superior to general Rolling and
Casting steels in improving wear-resistance for above products.
Presently, It is widely used in domestic and overseas markets.

Published in: Business, Technology
0 Comments
1 Like
Statistics
Notes
  • Be the first to comment

No Downloads
Views
Total views
1,044
On SlideShare
0
From Embeds
0
Number of Embeds
12
Actions
Shares
0
Downloads
12
Comments
0
Likes
1
Embeds 0
No embeds

No notes for slide

FT-9 Braking Pinch Rolls from Project Sales Corp

  1. 1. Powder Metallurgy Alloy Steel ( FT-9, FT-10, FT-23)
  2. 2. Contents INTRODUCTION HIP (Hip Isostatic Pressing) Powder Metallurgy Process Chemical Composition & Mechanical Properties Mechanical Properties Comparison Characteristics & Strengths Assembly Process Cooling ConditionDaewha Alloytech Co.,Ltd. www.millroll.com
  3. 3. Introduction FT-9, FT-10, and FT-23 is Powder Metallurgy Alloy Steel made by the Daewha Alloytech Powder Metallurgy Process (Canning HIP). They provide superior wear resistance while maintaining toughness and fabrication characteristics comparable to Rolling Steel such as D2, M2. Mill rolls, Pinch rolls, Guider rollers, Table roller for Cold/Hot Rolling is superior to general Rolling and Casting steels in improving wear-resistance for above products. Presently, It is widely used in domestic and overseas markets. FT-9 : SVCR-9(USA, Sintermet), CPM-9V(USA, Crucible) Overseas FT-10 : CPM-10V(USA, Crucible) similar material FT-23 : ASP-23(France, Erasteel) Structure Comparison of Carbide Pictures Rolling HSS(SKH-51) FT-9Daewha Alloytech Co.,Ltd. www.millroll.com
  4. 4. HIP (Hot Isostatic Pressing) HIP (Hot Isostatic Pressing) Hot Isostatic Pressing is a method by which a workpiece is processed under the simultaneous application of high-pressure gas and high- temperature. HIP can solve many technical problems which were impossible to solve by conventional processes. Specification Maker Kobe Steel Press frame type Press Proper Type Multiple steel plate yoke type Maximum working pressure 118 MPa (17,115 Psi) Loading style Bottom loading Furnace Type Graphite, three zone Maximum working Temperature 1500℃ Process gas Argon Furnace size Φ600mm × 1,300mm Product / Product basket (Crucible) size Φ550mm × 1,300mmDaewha Alloytech Co.,Ltd. www.millroll.com
  5. 5. Powder Metallurgy Process Powder Metallurgy Process Atomization Canning, Degassing HIP Powder Metallurgy Alloy Steel The shapes of materials by Canning HIP Single Ring Material Powder Metal + Steel Bonding Single Square Material Single Rods MaterialDaewha Alloytech Co.,Ltd. www.millroll.com
  6. 6. Chemical composition & Mechanical properties Chemical Composition(wt%) Materials C Cr Mo V W Fe FT-9 1.85 5.25 1.30 9.00 - Bal FT-10 2.45 5.30 1.30 9.50 - Bal FT-23 1.30 4.20 5.00 3.10 6.30 Bal Physical / Mechanical Properties Classification FT-9 FT-10 FT-23 Density (g/cm3) 7.45 7.45 8.00 Annealed 25~29 25~29 20~24 Hardness(HrC) Hardened 54~58 60~64 60~66 Transverse Rupture Strength (Kg/mm2) 600~620 610~630 570~600 Modulus of Elasticity (GPa) 221 221 207 Tensile Strength (Kg/mm2) 95~110 95~110Daewha Alloytech Co.,Ltd. www.millroll.com
  7. 7. Wear-Resistance & Toughness ComparisonDaewha Alloytech Co.,Ltd. www.millroll.com
  8. 8. Applications ⊙ Wire rod Mills in Intermediate stands, Mill rolls in Finishing stands Round Bar/Re-Bar/other Bar Mills in Intermediate stands, Mill rolls in Finishing stands Being used to Oval, Round, Angle, Profile, Slit, Dog bone, etc. ⊙ Ring-Type Mill roll, Kocks Roll, Pinch Roller, Sizing Roller, Guide Roller, and Rollers for transmission ⊙ Material: Square, Round Bar, RodDaewha Alloytech Co.,Ltd. www.millroll.com
  9. 9. Applications⊙ Composite Roll-Assemble Method : Hydraulic Method (1800~2300Bar) + Mechanical Method (Key, Lock Nut)-Roll Ring : FT-9, FT-10, FT-23 (Powder Metallurgy Steel) Tungsten Carbide, RESISTAR ® (Casting HSS) FT-1(Titanium Carbide)-Shaft : Forged SNCM, SCM, SUS (Optional)-Clamping System : SCM440 Powder metal ⊙ Braking Pinch Roll -FT-9 + Mild Steel -Canning HIP Mild SteelDaewha Alloytech Co.,Ltd. www.millroll.com
  10. 10. Characteristics & Strengths ⊙ Superior wear-resistance: 4~6times vs DCI, 2~3times vs HSS, 4~6times vs Tool Steel ⊙ Materials without porosity by HIP (Hot Isostatic Press) ⊙ Possible to produce (Mild steel+FT-9 or FT-10 or FT-23) and economical and easy for assembly. Applicable to the part of use. ⊙ Minute compound Carbides are distributed equally. Improvements to Toughness, Wear-resistance, Yield hardness, and Anti-corrosion. ⊙ Keeping Wear-resistance, Toughness, and Hardness up to 500℃, Minimize crack ⊙ Sintering manufacture with Alloyed Powder atomized: Protection for one side wear of rolls and roll marking (Good shape of wear). ⊙ Similar Hardness to Casting HSS with almost same condition of Heat Treatment. But Heat Treatment transform and low thermal expansion coefficient. ⊙ Excellent effect versus cost (Reduction effect of repair time and cost) ⊙ Easy reprocessing and remachining versus DCI and HSS. (Approx. more than 15%) ⊙ Lathe and CNC Machining with ceramic, CBN bite(0.5~2mm remachining)Daewha Alloytech Co.,Ltd. www.millroll.com
  11. 11. Assembly Process Fixing Shaft and Inserting Rings Rings inserting completed Hydro ring, unit setup Oil pressure supply inserting Spacer and inserting O-ring and tightening (2,000 bar)Fixing Shaft and Protection- Heating for Shrink Fit of rings and Ring Shrink Fit Rings cooling And Application key-Inserting Pulling it out of the furnace Tightening with a Jig Daewha Alloytech Co.,Ltd. www.millroll.com
  12. 12. Cooling Conditions Pressure 3 ~ 5 bar Powder Metallurgy Alloy Steel Ring Quantity 20~25 m3 / h Stand Pressure 4 ~ 6 bar T.C Ring Quantity 25~30 m3 / h Stand bar:1000hPaDaewha Alloytech Co.,Ltd. www.millroll.com
  13. 13. Thanks for your attention TEL : 82-31 - 355 - 7347 FAX : 82-31 - 355 - 7352Daewha Alloytech Co.,Ltd. www.millroll.com

×