Thermocouple Protection Si3n4 Silicon Nitride Bonding Sic Silicon Carbide Ceramic Tubes

• Application: Aerospace, Electronics, Medical, Refractory, Industrial Ceramic
• Ceramic Tube & Rod: Ceramic Tube
• Compressive Strength: 2500
• Model NO.: A NN-52611
• Flexural Strength: 900
• Color: Gray
• Thermal Shock Resistance: 800
• Hardness: 16
• Thermal Conductivity: 19
• Processing Service: Bending, Welding, Cutting, Punching, Decoiling
• Density: 3.2g/cm3
• Max Working Temperature: 1400℃
• Type: Ceramic Tubes
• Transport Package: Customized Package
• Specification: Customized
• Trademark: INNOVACERA
• Origin: Fujian, China
• Production Capacity: 20000 Piece/Pieces Per Month

Product Description

Silicon Nitride Ceramic Bushing:

Silicon Nitride Heating Element Protection Tube for Foundry Industry
The protective tube of silicon nitride material has high thermal conductivity, high temperature resistance, corrosion
resistance,non-wetting with molten metal, and electrical insulation, making it the best choice for heating body protection tubes. The advantage of the immersion holding furnace is very obvious, and in order to achieve the immersion of the heating element into the molten metal, it is necessary to have a protective tube which can protect the heating element well.

 

 

Silicon Nitride (Si3N4) Characteristics:

>Good thermal shock resistance

>Creep resistance

>Low density

>High fracture toughness

>High hardness and wear resistance

>Electrical resistivity

Product Features:
.Very low density
.High wear resistance and corrosion resistance
.High temperature resistance
.Good flexural strength and high fracture toughness
.Very good thermal shock resistance
.Dimensional stability and aging resistance
.Excellent sliding properties (tribology)
.Biocompatibility (for use in hygiene and the food and .beverage industry)

 

Typical Silicon Nitride Uses:

 

. Rotating bearing balls and rollers
. Cutting tools .Engine moving parts - valves, turbocharger rotors
. Engine wear parts - cam followers, tappet shims
. Turbine blades, vanes, buckets
. Metal tube forming rolls and dies
. Precision shafts and axles in high wear environments
. Weld positioners
 

Silicon Nitride Ceramic 4 Types:

* Reaction-Bonded Silicon Nitride (RBSN)
* Hot Pressed Silicon Nitride (HPSN)
* Sintered Reaction-Bonded Silicon Nitride (SRBSN)
* Sintered Silicon Nitride (SNN)

 

Silicon Nitride Properties
Properties		Units	Silicon Nitride (Si3N4)
			HPSi3N4	GPSi3N4
Mechanical	Density	g/cm3	3.24~3.28	3.24~3.26
	Color	--	Gray	Gray
	Water Absorption	%	0	0
	Vickers Hardness	Gpa	14	14
	Flexural Strength(20°C)	Mpa	850-900	750-800
	Compressive Strength(20°C)	Mpa	3000	3000
Thermal	Thermal Conductivity(20°C)	W/m.K	42	22
	Thermal Shock Resistance(20°C)	Δ T(C)	617	605
	Maximum Use Temperature	°C	1500	1500
Electrical	Volume Resistivity(25°C)	Ω.cm	--	--