Papermaking machinery and equipment repair

Thermal spray repair for defects such as wear, scratches, and scrapes on paper-making machinery equipment.

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Spray-on repair for papermaking machinery and equipment

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Request for quotation Phone: 020-84836251

Product Description

We provide thermal spray repair services for defects such as wear, scratches, and scrapes on papermaking machinery equipment. Wear, scratches, and scrapes on various rollers in papermaking machinery are major factors that limit the quality of paper products. For high-speed, frequently operated stone rollers, steel rollers can be surface-sprayed with oxide ceramics or metal-composite ceramic materials, effectively replacing traditional stone rollers in paper machines without being constrained by frequent, high-speed operation. Similarly, issues such as adhesive wear on machine calendering rollers and doctor blades, corrosion of water-conditioning rings, deterioration of surface finish on glossy calendering rollers, and mechanical wear on nip rollers, sizing rollers, post-drying rollers, and winding drums can all be addressed through advanced thermal spray technologies. At the same time, these processes can extend the service life of papermaking machinery components by several times. For re-winding rollers in paper machines, we offer carbide coating and mirror-finish roller restoration services. The areas suitable for mirror-finish roller and other papermaking machinery component coatings include rollers, drying cylinders, and stock chests. Under operating conditions involving metallic-to-metal wear, our solution is to apply supersonic spraying of WC/C0/316L, resulting in a mirror-like surface after polishing. Technical specifications: coating thickness ranges from 70 to 120 μm; coating surface roughness R3.5–6.5; coating adhesion strength ≥55 MPa. For molybdenum rollers used in papermaking, under conditions of material abrasion and media corrosion, our solution involves supersonic spraying of WC/C0/Cr, followed by flame spraying of metallic molybdenum materials and arc spraying of corrosion-resistant alloys. We have accumulated extensive experience in coating applications and are currently replicating these successful cases. We will assist you throughout the entire coating manufacturing transition process, ensuring: rapid start-up; a reliable supply solution covering materials, equipment, and processes; coating trials conducted either at your site or at our technical center; and consistently high coating quality and efficiency.

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