Hardness Straightness MT test

Cylindrical grinding machine machining (tolerance ±0.02mm)

Welding layer distribution 200~500℃tempering

Sand blasting before and after pretreatment

With the development of roll composition, the content of alloying elements gradually increases, forming a series of materials based on chromium elements. Through the adjustment of alloy composition and the change of manufacturing process, rolls suitable for different rolling stages, different rollin