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Cold Rolling Mill Forged Steel Rolls Water - Cooled Copper Mould High Toughness

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Cold Rolling Mill Forged Steel Rolls Water - Cooled Copper Mould High Toughness

China Cold Rolling Mill Forged Steel Rolls Water - Cooled Copper Mould High Toughness supplier
Cold Rolling Mill Forged Steel Rolls Water - Cooled Copper Mould High Toughness supplier Cold Rolling Mill Forged Steel Rolls Water - Cooled Copper Mould High Toughness supplier Cold Rolling Mill Forged Steel Rolls Water - Cooled Copper Mould High Toughness supplier Cold Rolling Mill Forged Steel Rolls Water - Cooled Copper Mould High Toughness supplier

Large Image :  Cold Rolling Mill Forged Steel Rolls Water - Cooled Copper Mould High Toughness

Product Details:

Place of Origin: China
Brand Name: SEEC
Certification: ISO
Model Number: Rolling mill

Payment & Shipping Terms:

Minimum Order Quantity: 10
Packaging Details: Standard international package
Delivery Time: 3-6months
Supply Ability: As required
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Detailed Product Description
Type: Steel Grade Cr1 Cr 2 Cr 3 Cr 5 Cr 12 Material: Forged Steel
Application1: Hot Rolling Mill Standard: ISO9001
Size: As Per Drawing Application2: Cold Rolling Mill

Forged Steel Rolls rolling mill steel grade Cr1 Cr 2 Cr 3 Cr 5 Cr 12

 

 

 

1.Production equipment:

 

1.1 Introduction furnace: 25tx8sets, 10t/3tx5sets

1.2 EAF: 30tx5sets

1.3 Ladle furnace: 50-70tx8sets

1.4 Large send Foundry equipment: 20 sets

1.5 Large & Middle size heat treatment: 50 sets

1.6 Large & Middle size centrifugal casting machine: 20 sets

1.7 Large & Middle size CNC & Heavy machine: 235 sets

1.8 Testing equipment: 35 sets

 

2. Production capacity: 150000Tons/Annual

 

2.1TYPE & Size:

 

2.1.1Cast roll & RING:

 

Backup roll: Max. Dia. 2000mm; Max weight 80t/pc,

Work roll: Max. Dia. 1600mm; Max. Barrel length 6500mm;

Max weight 85t/pc

Others: as per customer’s requirement.

 

2.1.2 Forged roll & RING:

Work roll for Cold Rolling mill: Max. Dia. 1100mm; Max weight 25t/pc,

Work roll for Hot Rolling mill: Max. Dia. 1600mm; Max weight 75t/pc

Backup roll for Hot Rolling mill: Max. Dia. 2000mm; Max weight 75t/pc

Others: as per customer’s requirement.

 

3. Forging


The qualified steel ingot is pressed to the roll blank by the hydraulic forging machine after pre-heating, heating and even heating.

 

The purpose of forging and pressing process is: the forging and pressing can reduce and compress the porosity, shrinkage and some pore; improve the macroscopic segregation (pattern segregation, V shape segregation) in the original structure of the steel ingot; shatter the gross liquation carbide and net carbide; crush and refine the gross grain.

 

In order to acquire the optimized feature of the roll, we strictly control the forging ratio , not less than 3 for work rolls while more than 2.5 for large size backup rolls.

 

4. Electro Slag Remelting

 

Electro slag remelting (ESR) is a specialized steel-making process in which a cast ingot in the form of an electrode is re-melted in a water-cooled copper mould. The melting is activated by resistive heat generated in a conductive slag.

 

Charactersistics of ESR:


1. No macroscopic segregation and few microscopic segregation. Very few and subtle non-metal inclusion; dispersed distribution.


2. Compact and homogeneous structure


3. High toughness and strength


4. Beneficial for improvement of anti-fatigue and heat impact ability of the roll

 

 

FORGED STEEL ROLL

Material Steel Grade Chemical coposition % Application
C Cr Mo V Ni Mn Co W  
Cr1 GCr15 0.95-1.05 1.3-1.65     ≤0.4      

Work roll of Cold mill

Straightenning roll

Pinch roll

9CrV 0.85-0.95 1.4-1.7   0.1-0.25 ≤0.25      
42CrMo 0.38-0.45 0.9-1.2 0.15-0.25           Work roll & Backup roll for Hot rolling mill
60CrMo 0.55-0.65 0.5-0.8 0.3-0.4          
60CrMnMo 0.55-0.65 0.8-1.2 0.3-0.4     0.7-1.0    
60CrMoV 0.55-0.65 0.9-1.2 0.3-0.4 0.15-0.35        

Straightenning roll

Pinch roll

Cr2 9Cr2Mo 0.85-0.95 1.7-2.1 0.2-0.4           Work roll, Middle roll, Backup roll for Cold Rolling mill
86CrMoV7 0.82-0.9 1.8-2.2 0.2-0.4 0.1-0.2        
9Cr2MoV 0.85-0.95 1.7-2.1 0.2-0.3 0.1-0.2        
Cr3 9Cr3Mo 0.85-0.95 2.5-3.5 0.2-0.4          

Work roll, Middle roll, Backup roll for Cold Rolling mill

(high quenching, deep hard layer)

MC3A 0.8-0.88 2.8-3.2 0.4-0.6 0.05-0.12 0.6-0.8      
MC3B 0.82-0.9 2.7-3.1 0.1-0.3 0.05-0.12 0.2-0.4      
70Cr3Mo 0.6-0.75 2.0-3.5 0.25-0.6          

Work roll, Middle roll, Backup roll for Hot Rolling mill

(high quenching, deep hard layer)

70Cr3NiMo 0.6-0.8 2.0-3.0 0.25-0.6   0.4-0.6      
Cr5 MC5 0.82-0.9 5-5.4 0.2-0.4 0.1-0.2 0.3-0.5      

Work roll for Cold Rolling mill

(high quenching, deep hard layer)

MC5A 0.77-0.84 5-5.4 0.3-0.5 0.1-0.2 0.3-0.5      
Cr12 Cr12MoV 1.45-1.7 11-12.5 0.4-0.6 0.15-0.3         Work roll, Middle roll for Multi-roll Rolling mill
Cr12Mo1V1 1.4-1.6 11-13 0.7-1.2 ≤1.1     ≤1.0  
Cr12MoVCo 1.4-1.6 11-13 0.8-1.2 0.75-0.95     0.3-0.5  
W steel W6Mo5Cr4V2 0.8-0.9 3.8-4.0 4.5-5.5 1.75-2.25       5.5-6.75 Work roll for Multi-roll Rolling mill
W12Cr4V5Co5 1.5-1.6 3.75-5.0 ≤1.0 4.5-5.25     4.75-5.25 11.75-13

 

Cold Rolling Mill Forged Steel Rolls Water - Cooled Copper Mould High Toughness

Cold Rolling Mill Forged Steel Rolls Water - Cooled Copper Mould High Toughness

 

Contact Details
BEIJING SINO STEEL ENGINEERING & EQUIPMENT CO., LTD.

Contact Person: sales

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