95 99 Ceramic Metal Single & Dual-Lead Seals Offer Vacuum-Tight Insulation for Heating Elements and Power Cables

• Application: Aerospace, Electronics, Medical, Refractory, High Temperature/ High Vacuum Welding
• Material Composition: Alumina, Al2O3
• Speciality: High Insulation, High Strength
• Type: Ceramic Parts
• Treatment: Glazed, Polishing
• Color: White+Metal
• Coating Thickness: 8-30μm
• Plated Layer: Nickel/Copper/Gold
• Processing Service: Welding, Moulding
• Plating Thickness: 2-9μm
• Max. Use Temperature: 1600ºC
• Transport Package: Carton Packing
• Specification: Customized
• Trademark: INNOVACERA
• Origin: Fujian, China

Product Description

 

Product Description

Single &Dual-Lead Seals

Single & Dual-Lead Seals offer vacuum-tight insulation for heating elements and power cables, safeguarding them from
potential damage by oils, grease, moisture and toxic fumes, ensuring long-lasting performance.

 

Materials:
* 95-99% Al2O3 (white or pink)
* Thread Stub-Monel, Steel, Inconel or Nickel
* Tube-Nickel
* Cap-Nickel
* Weld Sheath - Nickel
* More optionals for Sleeve Adaptors suitable
* for wedding (stainless steel or alternative
* materials), pls contact with us.

 

Characteristics
* Rugged End Seal Construction withstands normal torch assembly and retains hermeticity in spite of extreme operating
temperatures, vibration, shock, and corrosive atmospheres
* Assembled to heater by torch or induction brazing. the most common braze material for customer
* Shipments from stock or quick deliveries from production (in house components)

 

 

Typical Applications

* Industrial Heaters
* Terminating Power Cables
* Isolating Other High Heat or Power Sources
 

Alumina Ceramic Properties
Properties	Units		Alumina Ceramic
Purity	wt%		95%	99%	99.8%
Volume Density	g/cm3		3.65	3.8	≥3.89
Water Absorption	%		0	0	0
Crystal Size(Grain Size)	μm		4-5	4-5	4-5
Vickers Hardness, HV1.0	Gpa		14	1600	≥15
Flexural Strength	Mpa		300	310	≥300
Coefficient of Linear Expansion	20-500ºC	1x10-6 mm/ºC	6.5-7.5	6.5-7.5	6.5~7.5
	20-800ºC		6.5-8.0	6.5-8.0	6.5~8.0
Thermal Conductivity	W/m·K( 20ºC)		20	25	≥20.9
Specific Heat Capacity	KJ/(kg·K)		≥0.8	≥0.8	≥0.8
Dielectric Strength	KV/mm		≥12	15*106	≥12
Volume Resistivity	Ω·cm 20ºC		≥1014	≥1014	≥1014
	Ω·cm 300ºC		≥1011	≥1011	≥1011
	Ω·cm 500ºC		≥109	≥109	≥109
Dielectric Constant	1MHz		9	9-10	9-10
Tangent of Dielectric Loss	1MHz		≤4x10-4	≤2x10-4	≤3x10-4
Surface Roughness	μm		0.4 After Machine	0.1-0.4 After Machine	0.1-0.4 After Machine
Max Working Temperature	ºC		1600	1600	1650

 

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