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Wearable Alumina Ring Al2O3 Ceramic Ring Ceramic Insulation Ring

Alumina ceramics are classified into high-purity type and ordinary type. The high-purity alumina ceramics have a Al2O3 content of 99.9% or more. Since the sintering temperature is as high as 1650-1990 ° C and the transmission wavelength is 1 to 6 μm, the molten glass is generally used to replace the platinum crucible; Sexual and alkali-resistant metal corrosion is used as a sodium lamp; it can be used as an integrated circuit substrate and high-frequency insulation material in the electronics industry.

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Product Introduction

Al2O3 Ceramic Ring is a high-performance ceramic product made from high-purity alumina (Al2O3) as raw material, which has excellent high temperature resistance, corrosion resistance, insulation and wear resistance. Widely used in industrial fields such as electronics, machinery, chemical engineering, and high-temperature environments.

Characteristics and advantages

1、High temperature resistance: Alumina ceramics can work for a long time below 1600 ℃, suitable for high temperature environments.

2、Electrical insulation: high resistivity, suitable for insulation protection of electronic components and high-voltage equipment.

3、Corrosion resistance: resistant to acid and alkali erosion, can be used in chemical equipment and corrosive media environments.

4、High hardness: The Mohs hardness reaches level 9, with strong wear resistance and extended service life.

Wearable Alumina Ring Al2O3 Ceramic Ring Ceramic Insulation Ring

Application Area：

1、Electronic industry: used as insulation rings, sensor protective covers, etc.

2、Mechanical seal: wear-resistant, suitable for pump valves and bearing components.

3、High temperature insulation: used in high-temperature scenarios such as furnaces and thermocouple sleeves.

Main Features:

1. High hardness

2. High heat resistance

3. Good wear resistance

4. High electrical resistivity

5. High corrosion resistance

Technical Parameters

Properties	Units	95%Alumina Ceramic	99%Alumina Ceramic	Zirconia Ceramic	Silicon Nitride
Colour		White	Light yellow	White	Black
Density	g/cm3	3.6	3.8	6	3.2
Flexural Strength	Mpa	300	350	1100	800
Compressive Strength	MPa	2500	2800	3000	2600
Modulus of Elasicity(20℃）	Gpa	300	350	320	290
Max Use Temperature	°C	1400	1500	1050	1300
Thermal Condutivity	W(m.K)	20	30	3	25
Thermal Expansion Cofficient	10-6/°C	7.5	8	10	3
Thermal Shock Resistance	△T℃	140	150	250	600
Dielectric Strength	KV/mm	15	18	15	14
Dielectric Constant	Er	9	9.2	26	9

Production process

1. Grind and crush the raw materials to be slurry or powder

2. se-different method to making the slurry or powder into semi-finished products

3. Put the semi-finished products into the kiln for dewaxing and sintering;

4. After forming and sintering, Ceramic Sleeves products can also be processed by subsequent CNC precision machining according to the drawing requirements. Then Q/C test.

5. Finally package Ceramic Sleeves by bubble paper or cartons and place it on tray for delivery

95 alumina substrate

Certifications

95 alumina substrate

Our customers

Packaging and shipping

95 alumina substrate

Transport

Alumina AL2O3 Substrate Insulating Ceramic Substrate Thermally Conductive Ceramic Sheet

FAQ：

Q: Do you have the products in stock?

A: Some standard produce have in stock, such as ceramic band heater insulator; bobbin heater insulator and ceramic connector. But it needs to check according to your requirement.

Q: How do you pack the goods?

A: Our standard packaging is carton, we can customize it as per your requirement as well.

Q: How many days do you finish the sample?

A: Usually 15 business days (Including 8days for making furnaces and 7days for producing samples)