Mill Roll Hardness

Steel mill roll and have a larger impact force load, should have sufficient strength and hardness of the roll surface can be placed on second. Roughing mill roll should be chosen by special soft annealed pearlite ductile iron rolls, the hardness should be lower, usually select the hardness HS38 ~ 42.

07-08-2018· Products For Pipe Mill. Piercing Mill Roll; Piercing Plug; MPM/PQF/FQM Mill Rolls; Extracting Mill Rolls and Sizing Mill Rolls; Guide Plate; Technology. Melting; Casting; Heat Treatment; Machining; Quality Assurance; Service & Support; Contact; Search; Hardness Conversion Chart – Cast rolls. If you are interested in it, you can ...

Roll hardness is one of the most important parameters when deciding whether a paper roll is good or bad. A roll that is wound too softly can go out of round when handled. A roll that is wound too hard, on the other hand, can crack during transportation. These variations are difficult to detect.

HARDNESS CONVERSION..... 14 3.1.4. FUNDAMENTAL PROBLEMS OF HARDNESS READINGS ... After a roll change or a mill stop rolls need some time to return to stable thermal conditions, every new bar entering the mill creates an impact, ...

And finishing mill stands require high hardness, resistance to indentation, wear resistance, spalling, and thermal cracking resistance on the rolling mill roll surface.

Name Type of material Hardness Depth of hardness Hardness deviation Intermediate roll 2%Cr, 3%Cr, 5%Cr SHSS 70-85 HSD 8-50mm Within 2 HSD Back-up Roll Big-sized Back-up Roll Forged steel back-up roll is mainly used in 4-Hi mill and 6-Hi mill. The diameter of roll barrel is 350~1400mm.

07-08-2018· Shanghai Tangshan Heavy Machinery International Co., Ltd. Address: Room 510, No. 3438, Yixian Road, Baoshan District, Shanghai, China. Post Code: 200441

Mill roll material and roller surface hardness Taixi. Mill roll material and roller surface hardness Taixi,Finishing mill roll selected for the centrifugal casting ductile iron needle roller or highspeed steel roll High speed steel roll working layer of high hardness can reach HS80 85 has good wear resistance and thermal crack resistance hot roll surface crack does not appear generally do not ...

And finishing mill stands require high hardness, resistance to indentation, wear resistance, spalling, and thermal cracking resistance on the rolling mill roll surface.

Plate Leveling Rolls round out the Xtek’s roll product offerings with a special heat treatment providing more consistent depth of hardness. Through our extensive knowledge of rolling mill applications and our wide size range for machining and heat treating, Xtek can make a roll for you! Contact us today to discuss your roll needs.

High Hardness forged back up roll for rolling mill. The modern forging roll joint unit has really realized high-speed and continuThe productivity of roll has increase greatly The cold-olled products has devehigh-precision, high-quality and multi model.

Roll changing devices - use of an overhead crane and a unit designed to attach to the neck of the roll to be removed from or inserted into the mill. Mill protection devices - to ensure that forces applied to the backup roll chocks are not of such a magnitude to fracture the roll necks or damage the mill housing; Roll cooling and lubrication systems

Roll shop also cooperates with the investigating agency during roll failure analysis in case of a roll failure by providing them the roll history data from their record. The functions of the roll shop also include taking of the timely procurement action for the rolls so that they can make the rolls available to the mill as per the mill requirement.

We are a leading rolling mills rolls manufacturer in India, with years of experience in supplying steel rolling mills, we strive to provide the best quality processes in the industry. We provide high quality adamite steel rolls, alloy steel rolls, chill rolls and more.

hardness alloy carbides in a fine grain tempered martensitic matrix that manifests enhanced wear resistance. Typical Depth of Hardness 0 0.4 0.8 1.2 2.4 0 inch mm inch 10 20 30 60 mm Radial Depth 2.0 50 1.6 40 Hardness Hld + /– 10 Hardness Hsd (JIS) + /– 2 815 775 795 835 855 875 895 80 89 98 102 85 94 120 mm Process Special Static ...

Extensive range This market segment covers forged Work Rolls and Intermediate Rolls for use in Wide Cold Strip Mills of 2-high, 4-high, or 6-high types, including reversing Reduction Mills, Tandem Mills, Double Reduction Mills, and Temper/Skin Pass Mills. Our Rolls can be supplied in a number of grades to suit various applications, materials, and rolling conditions.

Plate Leveling Rolls round out the Xtek’s roll product offerings with a special heat treatment providing more consistent depth of hardness. Through our extensive knowledge of rolling mill applications and our wide size range for machining and heat treating, Xtek can make a roll for you! Contact us today to discuss your roll needs.

Roll hardness – Hardness of the material of a roll is to be optimum. Higher hardness improves wear resistance but increases the risk of roll failure. Higher hardness also creates issues during machining and grinding of the rolls. It is not a fact that everything improves in the roll if hardness is higher. In fact opposite is valid.

High Hardness forged back up roll for rolling mill. The modern forging roll joint unit has really realized high-speed and continuThe productivity of roll has increase greatly The cold-olled products has devehigh-precision, high-quality and multi model.

01-04-2015· In hot rolling mills, premature failure of rolls is a major concern as it adversely affects the mill operation as well as production. Analysis of failed roll materials and actual rolling conditions in service are therefore necessary to understand the roll failure mechanism and thereby improve the wear resistance and extend the service life of rolls.

If they're printing in the flexographic method, then the rubber roll acts as a wiper or metering roll, and it's metering ink against an anilox roll. There, the hardness could be in a wide range. For example, a rubber roller might need to have a hardness of 75, and instead it's 65.

Hardness: 40-54: Paper Roll Hardness Tester (Recording) The Schmidt Roll Hardness Tester determines the hardness of large rolls of paper, film and foil. It provides fast, accurate, non-destructive hardness profiles of rolls to assure smooth and efficient printing.

MIL-A-46099C, MILITARY SPECIFICATION: ARMOR PLATE, STEEL, ROLL-BONDED, DNAL HARDNESS (0.187 INCHES TO 0.700 INCHES INCLUSIVE (14 SEP 1987)., This specification covers roll-bonded, dual hardness, steel armor plate for lightweight armor applications (see 6.1).

We are a leading rolling mills rolls manufacturer in India, with years of experience in supplying steel rolling mills, we strive to provide the best quality processes in the industry. We provide high quality adamite steel rolls, alloy steel rolls, chill rolls and more.

The most common configuration is the single reversing mill. Various mill designs are offered that include 6-high UCMs (Universal Crown Control Mill), ZR mills and 12-high cold-rolling mills with small-diameter work rolls for the efficient rolling of materials of high hardness.

Extensive range This market segment covers forged Work Rolls and Intermediate Rolls for use in Wide Cold Strip Mills of 2-high, 4-high, or 6-high types, including reversing Reduction Mills, Tandem Mills, Double Reduction Mills, and Temper/Skin Pass Mills. Our Rolls can be supplied in a number of grades to suit various applications, materials, and rolling conditions.