Kocks 3-roll Block Suits also as a Compact Roughing Mill

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1 Kocks 3-roll Block Suits also as a Compact Roughing Mill Christoph Klebba 26 th of June 2018

2 Agenda 1. Introduction 2. Application as Roughing Mill - Design - Benefits 3. End User Experiences SEAISI 2018 Kocks 3- roll Block as Roughing Mill June 26 th,

3 Agenda 1. Introduction 2. Application as Roughing Mill - Design - Benefits 3. End User Experiences SEAISI 2018 Kocks 3- roll Block as Roughing Mill June 26 th,

4 Introduction Friedrich KOCKS GmbH & Co KG Supplier of rolling mills for SBQ market Reducing and/or Sizing Blocks with 3-roll Technology for Straight Bars Bar in Coil Wire Rod SEAISI 2018 Kocks 3- roll Block as Roughing Mill June 26 th,

5 Introduction SEAISI 2018 Kocks 3- roll Block as Roughing Mill June 26 th,

the roll passes Quick stand changing system (3 minutes)

6 Introduction Advantages Unique stand design for best surface quality and size tolerances Remote adjustment of the roll passes Quick stand changing system (3 minutes) SEAISI 2018 Kocks 3- roll Block as Roughing Mill June 26 th,

7 Introduction Kocks 3-roll Block These advantages are not only limited to the application as a finishing mill! SEAISI 2018 Kocks 3- roll Block as Roughing Mill June 26 th,

8 Agenda 1. Introduction 2. Application as Roughing Mill - Design - Benefits 3. End User Experiences SEAISI 2018 Kocks 3- roll Block as Roughing Mill June 26 th,

9 Kocks 3-roll Roughing Mill Solid stand design with 3-roll technology Fast roll gap adjustments (Remote Control) Quick stand changing system SEAISI 2018 Kocks 3- roll Block as Roughing Mill June 26 th,

10 Kocks 3-roll Roughing Mill Solid stand design with 3-roll technology Fast roll gap adjustments (Remote Control) Quick stand changing system Each roll driven individually No need for a central oil-lubrication system SEAISI 2018 Kocks 3- roll Block as Roughing Mill June 26 th,

11 Agenda 1. Introduction 2. Application as Roughing Mill - Design - Benefits 3. End User Experiences SEAISI 2018 Kocks 3- roll Block as Roughing Mill June 26 th,

12 Kocks 3-roll Roughing Mill 2-high pass 3-roll pass Kocks 3-roll passes less spreading, more elongation better control of the rolling process better surface quality and size tolerances for the finishing mill SEAISI 2018 Kocks 3- roll Block as Roughing Mill June 26 th,

13 Kocks 3-roll Roughing Mill Kocks 3-roll passes less spreading, more elongation better control of the rolling process better surface quality and size tolerances for the finishing mill Compact design Stand spacing of less than 1 meter approx. 60% reduction within 5 meters (4-stand solution) possibility to optimize (reduce) the overall reduction/stand in the mill line Perfect and repeatable surface and dimension qualities SEAISI 2018 Kocks 3- roll Block as Roughing Mill June 26 th,

14 Kocks 3-roll Roughing Mill Kocks 3-roll passes less spreading, more elongation better control of the rolling process better surface quality and size tolerances for the finishing mill Compact design Stand spacing of less than 1 meter approx. 60% reduction within 5 meters (4-stand solution) possibility to optimize (reduce) the overall reduction/stand in the mill line Perfect and repeatable surface and dimension qualities Use of bigger billets Billet Weight [kg] Tons / h Increase of production Ø120 x 6500 mm Ø140 x 6500 mm ,3 8 % Ø160 x 6500 mm ,9 13,7 % Finished size: Ø20,0 mm Rolling speed: 20 m/s Gap time: 5 sec. SEAISI 2018 Kocks 3- roll Block as Roughing Mill June 26 th,

15 Agenda 1. Introduction 2. Application as Roughing Mill - Design - Benefits 3. End User Experiences SEAISI 2018 Kocks 3- roll Block as Roughing Mill June 26 th,

16 Walsin Lihwa Corporation Ingoing: 85 mm SEAISI 2018 Kocks 3- roll Block as Roughing Mill June 26 th,

17 Walsin Lihwa Corporation Ingoing: 120 mm 130 mm Ingoing: 75 mm 85 mm SEAISI 2018 Kocks 3- roll Block as Roughing Mill June 26 th,

18 Walsin Lihwa Corporation - Detailed studies together with the customer SEAISI 2018 Kocks 3- roll Block as Roughing Mill June 26 th,

19 Walsin Lihwa Corporation - Mill shutdown time of ~2 weeks for final installation, cold and hot tests - Operation of the rolling mill line after 5 trial bars SEAISI 2018 Kocks 3- roll Block as Roughing Mill June 26 th,

20 Walsin Lihwa Corporation SEAISI 2018 Kocks 3- roll Block as Roughing Mill June 26 th,

Walsin Lihwa Corporation - Mechanical properties, as well as surfacequalities increased for all material grades rolled so far - Reliable rolling of critical material grades - Less mill

21 Walsin Lihwa Corporation - Mechanical properties, as well as surfacequalities increased for all material grades rolled so far - Reliable rolling of critical material grades - Less mill downtime for changing of stands and rolls - Production increased until now by 50 ton/day and still room for improvement SEAISI 2018 Kocks 3- roll Block as Roughing Mill June 26 th,

22 Thank you for your attention Christoph Klebba

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