Furnace bottom roll made from small diameter of 60 mm - 1600 mm Φ Φ various national standard material of heat-resisting alloy steel hollow bottom roller. Furnace temperature 850℃-1200℃, the use of materials are different. Suitable for annealing of carbon pipe, oil well pipe and stainless steel pipe. In particular, large diameter bottom roller is used in continuous annealing production line which requires higher reliability.

Performance of bottom roller

1. The quality of bottom roll of continuous annealing furnace of silicon steel is one of the main factors affecting the operating rate and product surface quality. The traditional graphite and ceramic coating roll is prone to roll surface oxidation, furnace roll nodulation, loosening and spalling, which affect the normal production.

2. Quartz ceramic hollow roller has the characteristics of high strength, high temperature resistance, small thermal expansion, good chemical stability, stable high-temperature performance, no deformation, smooth and delicate surface, good wear resistance, etc. It is an ideal replacement product for traditional graphite carbon sleeve and ceramic coating roller. It can effectively solve the problems of oxidation and nodulation, avoid the frequent change of the operation, improve the operation efficiency and obviously improve the surface quality of the steel strip.

3. Long-term use is not easy to wear, which is 3-5 times of the life of carbon sleeve. And the used old roller can be repeatedly used after reprocessing, which greatly extends the service life and reduces the production cost.

4. The service temperature is up to 1100℃, especially suitable for continuous annealing furnace of high grade silicon steel.

5. Using the company unique access to the national science and technology progress third prize of fine quartz ceramics manufacturing technology, research and development of quartz ceramic furnace bottom roll has nearly 10 years history, product performance has reached the level of similar products abroad, after a number of well-known domestic use silicon steel production enterprises, has reached the same furnace using the use of imported products of the same effect.

6. It can provide the design process parameters of furnace bottom roller with reasonable structure for the design and use unit, and ensure the assembly quality and use effect of furnace bottom roller.