The surface modification of the calender roller can be customized with a coating
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The surface modification of the calender roller can be customized with a coating

Calendering roller, surface maintenance, supersonic spraying of tungsten carbide coating, application in the papermaking industry, performance of calendering roller surface after thermal spraying
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Service advantages

1. Technological leadership: Utilizing supersonic flame spraying technology, the bonding strength between the coating and the substrate exceeds 70MPa, far surpassing traditional electroplating or thermal spraying techniques. This ensures that the coating does not peel off or crack under high-speed operation and high-load conditions.

2. Material compatibility: The tungsten carbide coating has a high hardness (second only to diamond) and excellent wear resistance. It is particularly suitable for the harsh environment in the papermaking industry where calendering rollers frequently come into contact with wet paper sheets and chemical agents, effectively reducing surface scratches and corrosion pits.

3. Process precision: By precisely controlling the spraying parameters (such as flame temperature, powder particle size, spraying distance, etc.), the uniformity of coating thickness (within ±0.05mm) and surface roughness (Ra0.2-0.8μm) can be precisely regulated to meet the calendering requirements of different paper types (such as cultural paper, packaging paper, and specialty paper).

4. Cost-effectiveness: Compared with replacing new rollers, surface maintenance and coating spraying can save 60% to 80% of costs, while reducing equipment downtime and enhancing production efficiency.


Service Commitment

1. Quality Assurance: The coating performance complies with ISO 2063 standards. A 12-month warranty period is provided. If the calendering roller fails due to coating quality issues during the warranty period, it will be repaired or replaced free of charge.

2. On-time delivery: According to the customer's production plan, we promise that the maintenance cycle for standard parts is no more than 72 hours. Urgent orders can be prioritized for production scheduling to ensure the rapid resumption of equipment operation.

3. Technical Support: Provide coating usage and maintenance guidelines, conduct regular follow-up visits to track the operation status of calendering rollers, and optimize coating formulas and spraying parameters for different paper types and process conditions.

4. Data transparency: Provide coating thickness inspection reports, hardness test data and metallographic analysis results before and after maintenance to ensure that the service process is traceable and quality is controllable.

Service content

In response to the surface maintenance requirements of the core component of papermaking equipment in the machine tool machinery industry - the calender roller, we offer professional supersonic spraying tungsten carbide coating services. The service process covers surface pretreatment of the calendering roller (including cleaning, rust removal, roughening and other procedures), preparation of supersonic flame spraying tungsten carbide coating, post-coating fine processing (such as grinding and polishing to the specified dimensional accuracy) and performance testing. Through supersonic spraying technology, a dense, high-hardness (above HV1200) and low-friction coefficient tungsten carbide coating can be formed on the surface of the calendering roller, significantly enhancing its wear resistance, corrosion resistance and anti-adhesion performance. This service is applicable to the repair of surface wear, scratches, corrosion and other problems of calender rollers in the papermaking industry caused by long-term use. It can extend the service life of calender rollers by 3 to 5 times, reduce the frequency of equipment downtime, and ensure key quality indicators such as the flatness and gloss of the paper surface.

Service advantages

1. Technological leadership: Utilizing supersonic flame spraying technology, the bonding strength between the coating and the substrate exceeds 70MPa, far surpassing traditional electroplating or thermal spraying techniques. This ensures that the coating does not peel off or crack under high-speed operation and high-load conditions.

2. Material compatibility: The tungsten carbide coating has a high hardness (second only to diamond) and excellent wear resistance. It is particularly suitable for the harsh environment in the papermaking industry where calendering rollers frequently come into contact with wet paper sheets and chemical agents, effectively reducing surface scratches and corrosion pits.

3. Process precision: By precisely controlling the spraying parameters (such as flame temperature, powder particle size, spraying distance, etc.), the uniformity of coating thickness (within ±0.05mm) and surface roughness (Ra0.2-0.8μm) can be precisely regulated to meet the calendering requirements of different paper types (such as cultural paper, packaging paper, and specialty paper).

4. Cost-effectiveness: Compared with replacing new rollers, surface maintenance and coating spraying can save 60% to 80% of costs, while reducing equipment downtime and enhancing production efficiency.

Service Commitment

1. Quality Assurance: The coating performance complies with ISO 2063 standards. A 12-month warranty period is provided. If the calendering roller fails due to coating quality issues during the warranty period, it will be repaired or replaced free of charge.

2. On-time delivery: According to the customer's production plan, we promise that the maintenance cycle for standard parts is no more than 72 hours. Urgent orders can be prioritized for production scheduling to ensure the rapid resumption of equipment operation.

3. Technical Support: Provide coating usage and maintenance guidelines, conduct regular follow-up visits to track the operation status of calendering rollers, and optimize coating formulas and spraying parameters for different paper types and process conditions.

4. Data transparency: Provide coating thickness inspection reports, hardness test data and metallographic analysis results before and after maintenance to ensure that the service process is traceable and quality is controllable.


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Jinan Tanmng New Material Technology Co., Ltd. Tanmng has standardized three arc spraying production lines, three supersonic spraying production lines, two plasma spraying production lines, and one ultra-high-speed laser cladding production line. At the same time, it is equipped with more than 40 sets of imported high-end thermal spraying systems and more than 50 sets of high-precision machining equipment to ensure high-precision processing of coatings.

CONTACT US

Phone:+86-15006396844
Email:allyn_tanmng@rptsd.com
WhatsApp:+8615006396844
Add:No. 18, Shibali Valley Road, Xiaoli Town Industrial Park, Changqing District, Jinan, Shandong Province

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