Paper Roll Tungsten Carbide Coatings in India

Paper Roll Tungsten Carbide Coatings in India

HVAF thermal spray coating
HVAF thermal spray coating

Tungsten Carbide Coating Repair a Paper Roll in Mumbai, Maharashtra, India

In the paper industry, the fibrous quality of papers and the caustic nature of ink result in high level of corrosion and wear to components.

Ensuring benefits of lower downtime, higher reliability of components and longer service life.

Our HVOF/HVAF coatings work to enhance the endurance and wear resistance of critical paper rolls and deliver multiple benefits. They are the ideal way to ensure long life serviceability of your components despite continual use.

Our HVAF coatings have several qualities important for paper roll applications.

  • High hardness. We can vary tungsten carbide coating hardness from 1050 – 1200 HV to 1400 – 1600 HV on-demand.
  • High ductility. HVAF coatings feature low oxide content that results in low stress. Low stress means high ductility.
  • Low porosity. The porosity of less than 0,3% means much fewer defects.
  • Manageable as-sprayed roughness. We may spray carbide coatings with the roughness of 1, 2, or 3 Ra µm set by order.
  • Low cost. Having the newest equipment made in the USA in 2017, we provide the best achievements of American machinery to the paper Industry of India. The high productivity of our thermal spray coating equipment and low operative expenses results in the low cost for our customers.

The Shield of Endurance Impact

The very first step in reducing wear and increasing Endurance is to understand the process of wear that the component undergoes. Understanding the problem will lead us to identify the metal coating that will protect and improve its endurance

Endurance Recommendations for the Paper Industry.

Cause of Wear of Components Our Recommended Coating
Adhesive Wear EnduroMax 410
Abrasive Wear EnduroMax 411F
Dimension Restauration EnduroMax 110
Corrosion EnduroMax 525

Typical Applications of HVOF and HVAF Coatings in Paper and Printing Industry

  • Calender Rolls
  • Suction Rolls
  • Winder Drums
  • Pump Sleeves
  • Printing Rolls
  • Guide Rolls
  • Coiling Rolls
  • Groove Press Rolls
  • Doctor Blades
HVOF and HVAF coatings
  • Corrugator Rolls
  • Winding Rolls
  • Archimedes’ Screws
  • Drying cylinders
  • Ink doctor Rolls
  • Corona Rolls
  • Plate & blanket cylinders
  • Furnace Saddles
  • Annealing pans
plasma coating

Our specialised coatings for the Paper industry such as EnduroMax 411,EnduroMax 438 are a sure way to improve the endurance of your roll and cylinder components from problems such as unwanted build-up, slippage, wear, and corrosion

Calender roll tungsten carbide coating in Mumbai

We thermal spray tungsten carbide coatings onto new and repaired calender rolls in our thermal spray shop in Mumbai, Maharashtra. Calender rolls’ role is to reduce thickness, enhance surface properties and polish whatever material is being rolled.

We produce coatings for the calender rolls by customer specifications. Various types of surface hardness and roughness could be achieved using different materials and spray technique. We provide spraying, grinding and polishing on-demand.

calender roll coating
calender roll finising

Super-Finishing of the Calender Roll

Tungsten Carbide Coatings forDoctor blades

The doctor blade of a paper machine has to maintain uniform contact and loading across the width of the roll, during its entire lifetime on the machine. Selection of a durable holder and robust doctor back design is vital to doctor blade performance.

Tungsten carbide sprayed blades are preferred because they could prevent damaging the wear-resistant surface of most ceramic rolls while keeping the roll surface clean. A non-wearing doctor blade coupled with a non-wearing ceramic coated roll is a long-lasting combination.

The HVOF tungsten carbide coating at the tip of the blade should be of the highest quality with actual carbide making up 80 to 90% of the matrix. The choice of material may depend on the environment, and the level of corrosion resistance required.
Carbide coated doctor blades are also used for dryer cylinders and after dryer cylinders after coating stations with coating rings on the cylinder surface.

Discover the benefits of the new HVAF Coatings.

Speak to us about your HVOF/HVAF requirements. Click here for the application form.

Get quotes for specific coatings.

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