Descrition:
Ceramic tube guides: The product is used for coiling machine and spinning and weaving fault silk location in mechanizing, is fault silk another piece in common use.
Ceramic tube and ceramic rod products are used in high-temperature applications that require erosion resistance and electrical or thermal insulation. Like other ceramic products, ceramic tubes and rods consist of oxides, carbides, nitrides, carbon, and other non-metals with high melting points. These refractories are hard, heat-resistant materials and products such as alumina cement, fire clay, bricks, and precast shapes. Some examples of ceramic tube and ceramic rod products are precast tubes, ladle impact pads, damns and weirs, impact runners, troughs, covers, furnace roofs, and skimmer paddles.
Many different materials are used in ceramic tube and ceramic rod products. Alumina, a compound of aluminum metal and oxygen, is used in refractory tubes, industrial crucibles, analytical labware, dielectric substrates, wear components, refractory cements, and abrasives. Depending on its purity, density and crystal structure, carbon is used for refractory linings, industrial crucibles, arc furnace electrodes, analytical labware, composites, refractory cements and superabrasives. Ferrites, garnets, and ferromagnetic materials have dielectric and magnetic properties that are useful in RF, microwave, and specialized industrial applications. Sapphire ceramics are used in lasers, substrates, jewel bearings, watch crystals, and other specialized optical, wear, and electronic applications.
Ceramic tube and ceramic rod products are available in a variety of shapes and types. Recuperator tubes are cross-shaped ceramic components that recover heat from combusted gases. Degassers are sometimes porous and bar stock usually has a square cross-section. Immersion tubes protect heating elements, burners, and other devices in high temperature furnaces from immersion in molten metal, glass, or other melted materials. Muffle or furnace tubes form a barrier between the heating elements and heated parts in a furnace.
Application
These precision toleranced ceramic components or assemblies are used in a wide range of semiconductor, electronic, electrical, mechanical, chemical, automotive, textile and the other industrial engineering applications, due to their extreme hardness, more resistances to wear, heat, corrosion, high electric insulation, and low thermal expansion. Specification
Physical Properties
|
Project
|
Test the condition
|
Unit
|
99 porcelain
|
95 porcelain
|
Talc porcelain
|
|
Backbone
|
|
|
99%AL 2 O 3
|
95%AL 2 O 3
|
MgO.SiO2
|
|
Physical property
|
Density of volume
|
Normal atmospheric temperature
|
g/cm 3
|
3.8
|
3.6
|
2.8
|
|
Airtight
|
Normal atmospheric temperature
|
|
Pass
|
Pass
|
—
|
|
Absorbing water rate
|
Normal atmospheric temperature
|
%
|
0
|
0
|
0
|
|
Temperature that frit
|
|
°C
|
1800
|
1650
|
1350
|
|
Mechanical performance
|
Rockwell hardness
|
Normal atmospheric temperature
|
HRA
|
88
|
86
|
76
|
|
Resist the intensity of turning back
|
Normal atmospheric temperature
|
Mpa
|
350
|
320
|
150
|
|
Compression strength
|
Normal atmospheric temperature
|
Mpa
|
1300
|
1200
|
900
|
|
Hot performance
|
Use temperature at most
|
|
°C
|
1700
|
1600
|
1200
|
|
Heat resistant shaking
|
20O°C-1100O°C
|
10Num
|
Pass
|
Pass
|
Pass
|
|
Hot coefficient of expansion
|
20O°C-80O°C
|
×10 -6 mm/°C
|
6.5-8.5
|
6.5-8.0
|
5.0-6.2
|
|
Heat-conduction rate
|
25°C
|
W/m.k
|
29
|
25
|
2.9
|
|
300°C
|
W/m.k
|
18
|
13
|
2
|
|
Dielectric constant
|
The medium lossing
|
1MHz2O°C
|
×10 -4
|
≤2.5
|
≤4
|
≤8.0
|
|
The angle tangent is worth
|
1MHz8O°C
|
×10 -4
|
≤3.5
|
≤4.2
|
—
|
|
Dielectric strength
|
Normal atmospheric temperature
|
KV/mm
|
15
|
16
|
20
|
|
Dielectric constant
|
1MHz2O°C
|
|
9-10.5
|
9-10
|
≤7.5
|
|
Resistivity of volume
|
2O°C
|
Ω.cm
|
>10 12
|
>10 12
|
>10 13
|
|
10O°C
|
Ω.cm
|
10 12 -10 13
|
10 12 -10 13
|
10 10 -10 11
|
|
30O°C
|
Ω.cm
|
>10 12
|
3.1×10 9
|
5×10 8
|
Competitive Advantage:
Competitive price, good quality
|
|
Ceramic tube/High Temperature Resistant Ceramic Rod Images
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