Forged backup rolls are used in rolling mills to make steel plate , aluminum plate or foil , copper plate or foil etc . They are typically made of forged steel, which provides high toughness and purity, and are widely used in cold rolling, hot rolling, and other types of rolling operations.
Application :
Copper foil or plate cold rolling mill
9Cr3Mo chemical specification :
| 9Cr3Mo |
C |
Si |
Mn |
Cr |
Mo |
P/S |
| 0.85%-0.95% |
0.25%-0.45% |
0.20%-0.35% |
2.50%-3.50% |
0.20%-0.40% |
≤0.020% |
Advantages:
Hardness: The hardness of 9Cr3Mo after heat treatment can reach HRC54-60, with high hardness and wear resistance.
Wear resistance: 9Cr3Mo has good wear resistance and can withstand severe friction and wear of the rolled material during the rolling process.
Tensile strength: 9Cr3Mo has a certain tensile strength and can withstand both static and dynamic loads during rolling operation. Hardenability: 9Cr3Mo has good hardenability and can obtain a deeper hardening layer during the quenching process, thereby improving the wear resistance and service life of the rolling mill.
Heat resistance to cracking: 9Cr3Mo has good heat resistance to cracking and can withstand local overheating without generating thermal cracks during rolling operation.
Forged backup roll features :
- Choose high strength forging material
- Forging raw material choose ESR ingot
- Long time annealing after forgings to remove inside stress
- Oil quenching heat treatment to reduce crack risks .
- Double -frequency quenching to reach a high hardness value and depth layer
- Hardness range : HRC55-65
Forged backup roll raw material grade choice :
Cold rolling copper plate or foil: 70Cr3Mo ,9Cr3Mo , 9Cr5Mo .etc
Production procedure
Forging ,rough machining
heat treatment: normalizing, quenching and tempering
surface quenching ,final processing
Equipment
Eternal company own heavy duty workshop 8,000 square meters ,till now more than 100 sets machine facilities have been installed. Main facility is as following : 2000ton fast forging press , heating treatment furnace, long 10 meters quenching tank , 500 tons straightening machine , 6 meters middle-frequency surface quenching machine, 3-11 meter CNC horizontal lathes, CNC machining center, 10 meters deep hole boring machine, 10 meters honing machine , including all kinds inspection and test tools etc .
Our Clients
our products have been exported to Europe, U.S.A , South Africa, Russian, Mexico, Brazil, Peru, Chile, Korea, Vietnam, Indonesia Middel East etc more than 80 countries , our quality is accepted by customers.
Our Company
Jiangyin Eternal Heavy Industry Co.,Ltd. was established in 2008, it is National high-tech enterprise, innovative small and medium-sized enterprise. Till now our main products including all kinds of special steel forgings and heavy duty hydraulic cylinder.
Our special steel forgings include all kinds of alloy steel forging, mould die steel forging, stainless steel forgings etc.
They are made for forging roll, forging shaft, forging ring, forging sleeve, forging plate, forging round bar etc.
Its size is from OD150mm to OD1000mm, length up to 12000mm. They have been applicated on petroleum machinery, mining machinery, metallurgical equipment, power equipment, etc.
We also make all kinds of heavy duty hydraulic cylinders they are installed on hydraulic press, extrusion press, and all kinds construction machinery etc. Our hydraulic cylinder pressure could reach 3600 tons, max length could reach 12 meters.
Our company owns 2000 tons fast speed forging production line, heat treatment quenching and tempering furnace, middle-frequency induction surface hardening machine with 6 meter standing height, 500 tons straightening machine, all kinds of CNC lathe machine, CNC frame type machining center, all kinds of quality inspection equipment, such as mechanical property test machine, non-destructive test machine etc.
At present, our products have been exported to Europe, U.S.A, South Africa, Russian, Mexico, Brazil, Peru, Chile, Korea, Vietnam, Indonesia, Middel East etc more than 80 countries, our quality is accepted by customers. In future we would devote ourselves to deep research and new market, and we expect to make a better co-operation with our customer.
1. who are we?
We are based in Jiangsu, China, start from 2008,sell to Domestic Market(36.00%),Eastern Europe(21.00%),Southeast Asia(16.00%),South America(12.00%),North America(9.00%),Northern Europe(4.00%),South Asia(2.00%). There are total about 51-100 people in our office.
2. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;
3.what can you buy from us?
Shaft and Roller forgings.
4. why should you buy from us not from other suppliers?
We have rich experience on casting, forging and heat treatment.
5. what services can we provide?
Accepted Delivery Terms: FOB,CFR,CIF,EXW,FAS,CIP,FCA,CPT,DEQ,DDP,DDU,Express Delivery,DAF,DES;
Accepted Payment Currency:USD,EUR,CNY;
Accepted Payment Type: T/T,L/C,D/P D/A,Western Union;
Language Spoken:English,Chinese,Portuguese,Russian
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