Chemical and paper

Chemical processing and paper production often takes place in harsh processing environments. We understand the challenges this places on your operations and that’s why we deliver thermal processing solutions that extend the life of key components.

Pumps and valves

Designers of pumps and valves requiring corrosion resistance often chose stainless steel as a material solution. Issues of wear, galling, and erosion can create design challenges or the need to move to costly specialty steels. Bodycote’s proprietary S3P processes applied to common stainless steel grades provide excellent resistance to galling, wear, and erosion for pumps and valves, decreasing costly downtime and increasing the life of the component.

Paper rolls

Rolls used within aggressive environments, such as those found in steel, paper and printing industries, suffer severe wear and corrosion problems resulting in high replacement costs, reduced performance, impaired quality and excessive downtime.

With the use of high pressure high velocity oxy-fuel (HP/HVOF) thermal spraying techniques, a durable engineered surface, with high micro hardness and excellent wear and corrosion resistant properties, can be applied to the roll face and journals. This coating can be either textured or ground/superfinished, giving the required characteristics which enhances the performance of the roll and extends service life.

Benefits:

• increase cycle life
• improved performance
• re-coating at the end of the life cycle, increasing life expectancy indefinitely
• thick coating capability (over 2.5mm for certain materials)
• cost effective three step process compared to minimum eight steps for chromium plating
• HP/HVOF offers the versatility of selecting a number of different coating chemistries for specific application requirements
• damaged rolls can have original dimensions restored, reducing roll replacement
• on site/in situ coating application where transportation of the roll is not viable or production down time is vital

Typical applications

• correcting rolls – steel galvanising
• sink rolls – steel galvanising
• flattener rolls – steel
• pinch rolls – steel
• anilox rolls – printing
• winder rolls – paper
• finishing rolls – printing
• bridle and deflector rolls
• yankee dryer rolls
• guide rolls
• hydraulic rams
• pump shafts