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{"title":"Silicon Nitride Riser Tube with Extended Service Life, High-Temperature","imgUrl":"https:\/\/img.chinax.com\/nimg\/12\/dc\/4910e16e8f9aaaa96dd30835afe9-200x200-1\/silicon_nitride_riser_tube_with_extended_service_life_2c_high_temperature_stability_2c_and_thermal_shock_resistance_for_aluminum_c.jpg","attrs":{"Brand Name":"KEGU","Place of Origin":"China","Price":"200-500 yuan\/kg","Payment Terms":"L\/C,D\/A,D\/P,T\/T,Western Union,MoneyGram"}}
{"title":"Silicon Nitride Heater Protection Tube with 1450\u2103 Max Service Temp, High Thermal","imgUrl":"https:\/\/img.chinax.com\/nimg\/7f\/66\/85778a0f8003f0719ae90d0d967b-200x200-1\/silicon_nitride_heater_protection_tube_with_1450_e2_84_83_max_service_temp_2c_high_thermal_shock_resistance_2c_and_non_reactive_wi.jpg","attrs":{"Brand Name":"KEGU","Place of Origin":"China","Price":"200-500 yuan\/kg","Payment Terms":"L\/C,D\/A,D\/P,T\/T,Western Union,MoneyGram"}}
{"title":"High Thermal Shock Resistance Silicon Nitride Sealing Pipe and Si3N4 Sealing","imgUrl":"https:\/\/img.chinax.com\/nimg\/25\/f1\/1b0487ab0750a4af2cccb3e7883e-200x200-1\/high_thermal_shock_resistance_silicon_nitride_sealing_pipe_and_si3n4_sealing_valve_with_high_density_for_low_pressure_die_casting.jpg","attrs":{"Brand Name":"KEGU","Place of Origin":"China","Price":"200-500 yuan\/kg","Payment Terms":"L\/C,D\/A,D\/P,T\/T,Western Union,MoneyGram"}}
{"title":"Silicon Nitride Pouring Spoon and Crucible with Ultimate Thermal Shock","imgUrl":"https:\/\/img.chinax.com\/nimg\/f7\/be\/f20468adce41fff6ac66a57916be-200x200-1\/silicon_nitride_pouring_spoon_and_crucible_with_ultimate_thermal_shock_resistance_and_superior_non_stick_aluminum_properties_for_t.jpg","attrs":{"Brand Name":"KEGU","Place of Origin":"China","Price":"200-500 yuan\/kg","Payment Terms":"L\/C,D\/A,D\/P,T\/T,Western Union,MoneyGram"}}
{"title":"Black High Thermal Shock Resistance Customizable Silicon Nitride Ceramic for Non","imgUrl":"https:\/\/img.chinax.com\/nimg\/b9\/c2\/81e787189b6a8899dc6bb09fcffe-200x200-1\/black_high_thermal_shock_resistance_customizable_silicon_nitride_ceramic_for_non_standard_structural_parts.jpg","attrs":{"Brand Name":"KEGU","Place of Origin":"China","Price":"200-500 yuan\/kg","Payment Terms":"L\/C,D\/A,D\/P,T\/T,Western Union,MoneyGram"}}
{"title":"Gas Pressure Sintering Silicon Nitride Forming Rollers with High Fracture","imgUrl":"https:\/\/img.chinax.com\/nimg\/71\/22\/c7365caade4b3b1f4a29aa1bc9aa-200x200-1\/gas_pressure_sintering_silicon_nitride_forming_rollers_with_high_fracture_toughness_and_thermal_shock_resistance_in_customizable_s.jpg","attrs":{"Brand Name":"KEGU","Place of Origin":"China","Price":"200-500 yuan\/kg","Payment Terms":"L\/C,D\/A,D\/P,T\/T,Western Union,MoneyGram"}}
Silicon Nitride Ceramic Blocks for Papermaking Dewatering Elements
Product Overview
Silicon Nitride Ceramic Blocks are engineered specifically for dewatering elements in high-speed paper machines, optimized for advanced papermaking equipment operating at speeds exceeding 800 m/min. These blocks leverage exceptional high-temperature resistance, superior hardness, self-lubricating properties, and excellent thermal shock resistance to significantly enhance the service life and operational stability of dewatering elements, enabling efficient and continuous production in papermaking operations.
Key Features
Feature
Description
High-Temperature Resistance
Maintains stable performance up to 1400°C without reacting with most substances, suitable for high-temperature conditions.
High Strength & Hardness
Flexural strength ≥980MPa, capable of withstanding large mechanical loads and impacts, ensuring structural integrity.
Wear Resistance & Self-Lubrication
Effectively resists particle and sliding wear, reduces friction loss, and extends service life.
Excellent Thermal Shock Resistance
Adapts to drastic temperature fluctuations without cracking or deformation, maintaining material integrity.
Low Thermal Conductivity
Prevents material deformation or performance degradation caused by rapid heat transfer, enhancing operational stability.
Typical Applications
Dewatering elements for high-speed paper machines
Wear-resistant components in papermaking production lines
Structural parts in high-temperature and high-humidity environments
Performance Specifications
Test Item
Value Range
Unit
Density
3.20 - 3.26
g/cm³
Apparent Porosity
0 - 0.1
%
Elastic Modulus
300 - 320
GPa
Compressive Strength
＞1500
MPa
Vickers Hardness (HVO.5)
15 - 16
GPa
Fracture Toughness
＞8.0
-
Flexural Strength
＞700
MPa
Poisson's Ratio
0.25
-
Coefficient of Thermal Expansion
3.1 - 3.3
×10⁻⁶ /℃
Weibull Modulus
11 - 13
-
Thermal Conductivity
20 - 25
W/(m*k)
Specific Resistivity
10¹¹
Ω*cm
Key Highlights
Extremely Dense Structure: Apparent porosity approaches 0%, providing a dense structure with excellent penetration resistance.
Excellent Thermal Stability: Low coefficient of thermal expansion, adaptable to drastic temperature changes.
Good Insulation Performance: Specific resistivity reaches 10¹¹ Ω*cm, meeting electrical insulation requirements.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer
Year Established:
2017
Total Annual:
800-850
Employee Number:
60~70
Ecer Certification：
Verified Supplier
Founded in 2017, Kegu is a leading advanced materials developer based in China’s Xixian New District, Qinhan New City—strategically positioned near major transport links including the Xianyang East Expressway. With a registered capital of 35.5 million RMB (approx. 5 million USD), we o...
Founded in 2017, Kegu is a leading advanced materials developer based in China’s Xixian New District, Qinhan New City—strategically positioned near major transport links including the Xianyang East Expressway. With a registered capital of 35.5 million RMB (approx. 5 million USD), we o...
