A silicon nitride sleeve is a ceramic tubular component made from nitruro de silicio powder through precision molding and sintering. It is mainly used in various high-temperature, high-wear, or high-corrosion environments to protect, isolate, and support the components inside the tube.
Silicon nitride bushing core advantages
- Resistencia a altas temperaturas
- Excelente resistencia al choque térmico.
- High strength and high toughness
- Resistente al desgaste
- Resistente a la corrosión
- Bajo coeficiente de expansión térmica
Standard size specifications
Below are the standard dimensions for silicon carbide ceramic sleeves. In addition, GORGEOUS CERAMICS (GGS) also offers custom processing services. You can send us your drawings, and we will provide you with the best ceramic protection tube solution.
|
OD |
ID |
L |
|
20 |
12 |
43 |
|
17 |
9 |
43 |
|
15 |
10 |
45 |
|
19 |
11 |
47 |
|
23 |
13 |
51 |
|
24 |
14 |
58 |
|
28 |
20 |
61 |
|
30 |
22 |
68 |
|
32 |
26 |
70 |
|
37 |
30 |
72 |
|
43 |
35 |
83 |
|
48 |
40 |
108 |
|
59 |
45 |
108 |
|
70 |
35 |
108 |
|
76 |
40 |
120 |
|
93 |
80 |
124 |
Customized specifications
Custom machining parameters for GORGEOUS CERAMICS (GGS):
Inner Diameter (ID): 5–120 mm
Outer Diameter (OD): Designed to requirements
Length: ≤300 (Request specific application)
Tratamiento de superficie: Fine grinding of inner bore, polishing (low friction)
Construction: Stepped bore, flange construction, slotted/through hole
Tolerance: ±0.02 mm
Preguntas frecuentes
1. What is a silicon nitride sleeve?
A silicon nitride ceramic sleeve is a ceramic tube specifically designed for high-temperature, wear-resistant, and corrosion-resistant protection. It provides protection for shafts, sensors, or fluid channels, serving as a protective, isolating, and supporting element.
2.What are the differences between silicon nitride sleeves and alumina sleeves?
Alumina sleeves are more economical and used in more common applications, while silicon nitride sleeves offer superior performance, stronger thermal shock resistance, and are less prone to cracking.
3.What is the maximum operating temperature of a silicon nitride protective tube?
In air, it can be used continuously at high temperatures of 800–1000°C. In an inert atmosphere or vacuum environment, it can operate even higher.
4.What are the main applications of silicon nitride ceramic protective tubes?
For example, they are used as protective sleeves for pump shafts, in molten metal transport systems, as thermocouple protective tubes, and for insulation protection of semiconductor equipment.
