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Wear-Resistant Silicon Nitride Ceramic Drawing Wheel and Silicon Nitride Guide Roller

Wear-Resistant Silicon Nitride Ceramic Drawing Wheel and Silicon Nitride Guide Roller

Name: Wear-Resistant Silicon Nitride Ceramic Drawing Wheel and Silicon Nitride Guide Roller
Brand: TRUNNANO
Availability: InStock
Rating: 5 (1 reviews)

A Silicon Nitride Guide Roller is a high-performance ceramic guide roller.

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Description

Overview of Silicon Nitride Guide Rollers

Silicon Nitride Guide Rollers are high-performance ceramic rollers known for their high strength, hardness, temperature resistance, corrosion resistance, and wear resistance. These rollers maintain dimensional accuracy and mechanical properties in high-temperature environments due to their excellent thermal stability. Their smooth surfaces and low friction coefficient reduce resistance and wear during material transfer, making them ideal for industries such as semiconductor, photovoltaic, and glass manufacturing.

Silicon Nitride Guide Rollers

Features of Silicon Nitride Guide Rollers

High hardness and strength: Silicon nitride has high hardness and strength so that the guide roller can withstand greater pressure and tension in high-speed operation and heavy load conditions, can still maintain good stability and wear resistance, and is not easy to deformation, wear and other problems, to extend the service life of the guide roller.

Excellent high-temperature resistance: Silicon nitride guide rolls have excellent high-temperature resistance, can maintain good mechanical properties and dimensional stability in high-temperature environments, and can withstand high temperatures of 1200 ℃ or even higher, which makes it excellent in high-temperature production processes such as glass manufacturing, hot rolling of iron and steel, and effectively reduces the production errors caused by thermal deformation.

Good Chemical Stability: Silicon nitride rollers resist corrosion from acids, alkalis, and other chemicals, ensuring performance and precision in harsh environments.

Low Friction Coefficient: The smooth surface of silicon nitride rollers reduces material transfer resistance, minimizes energy loss, and prevents surface scratches, enhancing product quality.

Specifications Table of Silicon Nitride Guide Rollers

Property	Unit	Typical Value
Color	/	Grey
Density	g/cm³	3.21
Compressive Strength	MPa	3000
Flexural Strength	MPa	800
Weibull - Modulus	/	15
Fracture Toughness	MPa·m¹/²	6.5
Young's Modulus	GPa	320
Poisson Ratio	/	0.28
Hardness (Vickers, HV1)	GPa	16
Maximum Temperature (Inert Gas)	℃	1200
Maximum Temperature (Air)	℃	1100
Thermal Conductivity (at 20℃)	W/m·K	28
Thermal Conductivity (at 1000℃)	W/m·K	16
Thermal Expansion (20 - 100℃)	10⁻⁶/K	2
Thermal Expansion (20 - 1000℃)	10⁻⁶/K	3.5
Thermal Shock Parameter R1	K	600
Thermal Shock Parameter R2	W/mm	15
Resistivity (at 20℃)	Ω·cm	10¹²
Resistivity (at 800℃)	Ω·cm	10⁷
Dielectric Constant	MHz	6

Applications of Silicon Nitride Guide Rollers

Semiconductor Industry: High-precision transfer and positioning of semiconductor wafers, preventing surface scratches and ensuring high-quality production.

Photovoltaic industry: In the manufacture of solar cell wafers, silicon nitride guide rollers are used for wafer transfer and positioning. Its high-temperature and wear-resistant characteristics can adapt to the high-temperature process and frequent material transfer in the photovoltaic production process, improving production efficiency and product quality.

Glass industry: In glass annealing, float glass production and other processes, silicon nitride guide rollers can work stably in a high-temperature environment, bear the weight of glass and realize smooth transmission. Due to its good chemical stability, it will not have a chemical reaction with glass liquid, which ensures the quality and surface finish of glass.

Electronic Material Industry: Precise transfer and stable support for high-precision materials like liquid crystal panels and flexible circuit boards, preventing deformation or damage.

Company Profile

Luoyang Tongrun Nano Technology Co. Ltd. (TRUNNANO) is a trusted global chemical material supplier & manufacturer with over 12-year-experience in providing super high-quality chemicals and nanomaterials, including boride powder, nitride powder, graphite powder, ceramic products, 3D printing powder, etc.

The company has a professional technical department and Quality Supervision Department, a well-equipped laboratory, and equipped with advanced testing equipment and after-sales customer service center.

If you are looking for high-quality Ceramic Products please feel free to contact us or click on the needed products to send an inquiry.

Applications of Ceramic Products

Process of Ceramic Products

Payment Term
T/T, Western Union, Paypal, Credit Card etc.

Shipment Term
By air, by sea, by express, as customers request.

5 FAQs of Silicon Nitride Guide Rollers

Q1: How to extend the service life of silicon nitride guide rollers?

Regular Cleaning: Wipe the surface with a neutral cleaner (e.g., alcohol) weekly to remove oil and dust, preventing particle abrasion.

Avoid Temperature Shock: Allow slow cooling (e.g., natural cooling) after high-temperature use to prevent thermal stress cracking.

Bearing Inspection: Check bearing clearance monthly and replace if loose to prevent eccentricity and increased wear.Surface

Treatment: Apply pre-oxidation treatment to form a protective Si₂N₂O layer, enhancing corrosion and oxidation resistance.

Load Control: Avoid exceeding the rated load (usually ≤100N/mm) to prevent structural fatigue fracture.

Q2: How long is the life of silicon nitride guide rollers?

Semiconductor Industry: 3-5 years (24 hours per day operation).

Photovoltaic Industry: 2-3 years (coating process).

Glass Industry: 1-2 years (high-temperature annealing kiln).

Metallurgical Industry: 6-12 months (high-speed wire rod mill).

Q3: How to choose the right silicon nitride guide roll?

Temperature Adaptation: Use hot-pressed silicon nitride (HPSN) for high-temperature scenarios (>1000℃) and reaction-sintered silicon nitride (RBSN) for medium temperatures (600-800℃).

Precision Requirements: For the semiconductor industry, choose mirror guide rollers with processing accuracy of ±0.002mm (surface roughness Ra ≤ 0.1μm).

Corrosion Resistance: For photovoltaic coating processes involving hydrofluoric acid, select high-purity silicon nitride (purity ≥ 99.9%).

Cost Control: If the budget is limited, consider metal-based composite guide rollers (e.g., steel core + silicon nitride coating) to reduce costs by 30%.

Q4: Are silicon nitride guide rolls environmentally friendly?

Yes, silicon nitride material is free of heavy metal pollution, and the production process complies with ISO14001 environmental management system certification. Some manufacturers' products (e.g., Kaisin Technology) can be recycled to reduce resource waste.

Q5: Can silicon nitride guide rollers be repaired?

Minor Wear: Grinding can restore accuracy to ±0.01mm.

Serious Damage: Cracks or chipped edges require replacement, with repair costs being about 50% of new products.