| Customization: | Available |
|---|---|
| After-sales Service: | 24 Hours |
| Warranty: | 1 Year |
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Carbon contents of Alloyed Cast Steel range between 0.4 to 1.4 % depending of the hardness level. Additions of Cr, Ni, Mo and other alloying elements and the right heat treatment will develop a pearlitic or sorbitic structure.
In case of deep channels and grooves, we recommend a pre-machining of the grooves before the final heat treatment allowing the hardness to penetrate down to the bottom of the grooves and developing a uniform hardness along the barrel.
Roughing and BD stands of heavy section and medium section mills.
| MATERIAL | GRADE | CHEMISTRY | BARREL HARDNESS (HSC) |
|||||
| C | Si | Mn | Cr | Ni | Mo | |||
| Alloy Steel | AS60 | 0.55-0.65 | 0.20-0.45 | 0.90-1.20 | 0.80-1.20 | 0.20-0.45 | 35-50 | |
| AS65 I | 0.55-0.65 | 0.20-0.60 | 0.50-1.00 | 0.80-1.20 | 0.20-1.50 | 0.20-0.60 | 35-45 | |
| AS70 | 0.65-0.75 | 0.20-0.45 | 0.90-1.20 | 32-42 | ||||
| AS70 I | 0.65-0.75 | 0.20-0.45 | 1.40-1.80 | 35-45 | ||||
| AS70 II | 0.65-0.75 | 0.20-0.45 | 1.40-1.80 | 0.20-0.45 | 35-45 | |||
| AS75 | 0.70-0.80 | 0.20-0.45 | 0.60-0.90 | 0.75-1.00 | 0.20-0.45 | 35-50 | ||
| AS75 I | 0.70-0.80 | 0.20-0.70 | 0.70-1.10 | 0.80-1.50 | ≥0.20 | 0.20-0.60 | 35-50 | |
| TYPICAL PHYSICAL PROPERTIES | |||
| Material | Neck Hardness (HSC) | Tensile Strength (N/mm2) | Unevenness of Barrel Surface Hardness (HSC) |
| AS60 | ≤45 | ≥650 | <5 |
| AS65 I | ≤45 | ≥650 | <5 |
| AS70 | ≤45 | ≥600 | <5 |
| AS70 I | ≤45 | ≥600 | <5 |
| AS70 II | ≤45 | ≥680 | <5 |
| AS75 | ≤45 | ≥680 | <5 |
| AS75 I | ≤45 | ≥700 | <5 |
--MELTING
TSR Rolls factory is equipped with a variety of smelting equipments, such as EBT electric arc furnace, LF double-bit refining furnace, VD-VOD vacuum furnaces and etc. Advanced smelting equipment supplemented by temperature control, component analysis and other testing equipment ensure that each furnace is in line with the requirements of molten steel.
--CASTING
TSR Rolls applies advanced roll casting technology to first-class foundry equipment. Our main production processes use computers to control and select parameters automatically. So we can ensure that each batch of rolls has consistent production process control. Every step is traceable by our Electronic recording system. Whether it is static casting or centrifugal casting, our products have excellent performance.
Plus a complete set of chills, chillers and moulding tackle to cast all kind of rolls including big section rolls with the barrel shaped with grooves and collars in as-cast condition.
--HEAT TREATMENT
During the manufacturing process of rolls, many materials need to pass one or more heat treatment to further achieve the most appropriate mechanical properties and good microstructure. The resistance furnace of TS ROLL can achieve multi-point precise temperature control to ensure uniformity of the furnace temperature. Between different furnaces, we use a unified computer control to achieve the furnace heating and cooling consistency in order to ensure the rolls from different furnaces with same microstructure and performance.
TSR Roll has a machining shop of more than 15.000 square meters, including the lathe, boring machine, grinding machine and other modern processing equipment for rolls. Thanks for the first-class operator working on high-precision CNC equipment, it is easy to produce the rolls with various kinds of grooves and precise tolerances.
--QUALITY ASSURANCE
The high performance requirements of today's mills require reliable rolls capable of remaining in the production cycle longer than ever while still assuring a high quality of the rolled products. TS Rolls has built a consistent quality control throughout the manufacturing process. Our aim is supplying the customer with reliable rolls capable to perform better, contributing to customer benefit, cost reduction and satisfaction.
Since the beginning TS Roll obtained the ISO 9001:2008 Quality Management System Certification. Based on our consistent adherence to the quality management, TS Roll products quality has been universally acclaimed by dozens of customers worldwide.
At TSR Roll, we are focused on the roll service. Our Technical Service will help you to solve questions about roll maintenance, roll wear, roll damages, roll configuration, shape of the roll, surface hardness, roughness, temperature distribution and damage inspection among others. The aim is reducing the Total Cost of Operation for the customer by supplying reliable rolls and advanced roll service always with strict adherence to the delivery time.
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