How to Improve the Service Life of Tungsten Carbide Rollers?
Tungsten Carbide roller is an important production tool for steel production enterprises,which has a direct impact on product quality and production efficiency.High hardness rollers are generally made from cemented carbide with characteristics of high hardness, high compressive strength, high wear resistance and small friction modulus. During the rolling process,cemented carbide rollers help to increase the rolling speed and reduce the number of rolling mill pauses.
Selection of Carbide Roller Material
During the rolling process, cracks and soft spots will be formed on the surface and inside of the roll due to factors such as high impact, tail flicking, and poor roll material,which will bring about a greater impact on the normal production of the rolling line and the service life of the roll. At present,many types of roll materials are available on the market,Oston Carbide recommends you to use raw material carbide rollers, which have better properties and it’s safer. At the same time, it reduce the time and labor cost of regrinding and replacing the rolls.
Selection of roller holder and rolling cassette
The roller holder and roller cassette are set up to install, support, adjust, replace the roll and guide the rolling piece to enter and exit the carbide roller correctly, Strict quality control is needed during the manufacturing such as metallurgy, ultrasonic wave, hardness test, etc to ensure the sufficient strength under mechanical stress such as twisting and bending.The tolerance request of the roll holder should be matched strictly according to the surplus amount. Too loose and too tight roller holder will affect the service life of the cemented carbide roller. Every time the roller holder or carbide roller is replaced, the surface debris should be removed, and the surface should be checked for cracks and deformation.
Maintenance of cemented carbide rolls
Regrinding of cemented carbide rolls
In order to achieve the rated service life (rolling tons), after reaching a certain rolling tonnage, carbide rollers needs to be re-grounded, the correct regrinding of cemented carbide rolls is very important. In order to reduce and avoid roller breakage caused by cracks in the groove, it is very important that all cracks are completely ground off before the roll is reworked,Oston Carbide supply regridning service for cold rolling mill rollers if needed.
