Products

Alumina Insulator Rods

Brand: Yunxing
Product origin: China
Delivery time: Depending on product size and quantity
Supply capacity: 5,000-10,000/month(Looking for distributors)

1. Alumina Insulator Rods have excellent mechanical strength and hardness. 2. Have high temperature resistance, chemical corrosion resistance. 3. Large stock and fast delivery.

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Alumina Insulator Rods

Core performance advantages

1. Excellent Insulation Characteristics

Alumina Insulator Rods have extremely low dielectric loss and high resistivity. Alumina Insulator Rods can still maintain stable insulation performance in a high-frequency environment, effectively isolating the circuit from the mechanical structure, avoiding the risks of electric leakage or short circuit, and are suitable for the insulation support of high-voltage equipment.

2. High Temperature Resistance and Thermal Stability

Alumina Insulator Rods can withstand a long-term operating temperature of up to 1600°C. It has a low coefficient of thermal expansion (8.2 ㎜×10⁻⁶／℃×m), and is capable of adapting to drastic temperature changes. Alumina Insulator Rods can maintain structural stability in high-temperature furnaces and heat treatment equipment, preventing equipment failures caused by thermal deformation.

3. Wear Resistance and Corrosion Resistance

Alumina Insulator Rods with a Mohs hardness of grade 9, its wear resistance is comparable to that of superhard alloys, and it can resist high-speed friction or the scouring of particles.

4. Mechanical Strength and Precise Structure

The Alumina Insulator Rods formed by processes such as dry pressing and isostatic pressing has a density as high as 3.88 g/cm³ and a bending strength exceeding 350 MPa. It can withstand complex working conditions such as high pressure and vibration.

Typical application scenarios

1. Power Electronic Equipment

Alumina Insulator Rods is used as an insulating connection part in high-voltage generators and transformers to ensure safe operation in a high-voltage environment.

2. Chemical Industry and Corrosive Environments

Alumina Insulator Rods is used as a structural component in chemical treatment equipment and reaction kettles to resist the erosion of acid and alkali media. For example, the connecting parts designed with threaded rods can fix the stirring device or sensors while maintaining insulation performance.

3. High-temperature Industrial Equipment

Alumina Insulator Rods is used as a supporting or driving component in high-temperature furnaces and kilns, such as furnace rolls and thermocouple protection tubes. It can withstand high temperatures above 1600°C and maintain its mechanical strength.

4. Motor and Transmission System

Alumina Insulator Rods is used to replace traditional metal shafts and applied to motors of water pumps, oil pumps, and high-pressure cleaners, reducing wear and noise and extending the service life.

5. Precision Machinery and Instruments

Alumina Insulator Rods is used as an insulating support in semiconductor equipment and measuring instruments to ensure the stability of high-precision operations. Its non-magnetic property makes it suitable for magnetically sensitive environments, such as medical equipment or scientific research devices.

Size,Performance index

Alumina round rods Specification Table

Number	Diameter		LENGTH MM	Number	Diameter		LENGTH MM
Number	INCH	MM	LENGTH MM	Number	INCH	MM	LENGTH MM
1	0.031	0.79	≤1250	25	0.630	16	≤1500
2	0.039	1		26	0.669	17
3	0.059	1.5		27	0.688	17.5
4	0.062	1.58		28	0.748	19
5	0.079	2	≤1500	29	0.750	19.05
6	0.100	2.5	≤1500	30	0.787	20
7	0.118	3	≤1750	31	0.827	21
8	0.125	3.18		32	0.866	22
9	0.157	4		33	0.906	23
10	0.187	4.75		34	0.945	24
11	0.197	5		35	0.984	25
12	0.236	6		36	1.000	25.4
13	0.250	6.35		37	1.063	27	≤1250
14	0.276	7		38	1.126	28.6	≤1250
15	0.312	7.92		39	1.181	30	≤800
16	0.315	8		40	1.250	31.75
17	0.333	8.47		41	1.378	35
18	0.375	9.53		42	1.500	38.1
19	0.394	10		43	1.575	40
20	0.433	11		44	1.654	42
21	0.472	12		45	1.750	44.45	≤500
22	0.500	12.7		46	1.875	47.6	≤500
23	0.551	14	≤1500	47	1.969	50	≤300
24	0.591	15	≤1500	48	2.000	50.8	≤300

Alumina ceramic performance index (Notice of Correct in Leakeage Rate）

NO.	Property	Unit	Alumina
1	Al2O3	%	>99.3
2	SiO2	%	—
3	Density	g/cm3	3.88
4	Water absorption	%	0.01
5	Compressive strength	MPa	2300
6	20℃ leakage rates	Torr・L/sec	>10-11=1.33322×10-12Pa・m3/sec
7	Twisting in high temperature	mm	0.2 allowed in 1600℃
8	Bonding in high temperature		not bonded in 1600℃
9	20—1000℃ coefficient of thermal expansion	mm.10-6／℃.m	8.2
10	Thermal conductivity	W/m.k	25
11	Electric insulation strength	KV/mm	20
12	20℃direct current insulation resistance	Ohm/cm	1014
13	High-temperature insulation resistance	1000℃ MΩ	≥0.08
13	High-temperature insulation resistance	1300℃ MΩ	≥0.02
14	Thermal shock resistance		4 times not cracked in 1550℃
15	Maximum working temperature	℃	1800
16	Hardness	Mohs	9
17	Flexural strength	Mpa	350

Composition table

NAME	CONTENT(%)
Al2O3	99-99.3(99.5)
SiO2	0.3-0.5
CaO+MgO	0.2-0.3
K2O+Na2O	0.2-0.35
Fe2O3	<0.1
OTHER	<0.05

Factory Equipment

Slip casting moulding: Inject the prepared slurry into the gypsum mold and let it stand for a period of time to allow the gypsum mold to absorb moisture. The slurry forms a uniform body on the inner wall of the mold.
Injection moulding: Inject a slurry containing paraffin into a metal mold at a certain temperature and pressure, and after the body cools and solidifies, perform demolding to prepare ceramic bodies.
Extrusion moulding: Suitable for long tube products, the powder is extruded into shape through an extruder.

FAQ

Q1. What information should we supply to get a quote?

A1. Please offer the specification of Alumina Insulator Rods, such as shape, dimension, quantity, application etc.

Q2: What are the benefits of using Alumina Insulator Rods for textiles?

A2. Textile Alumina Insulator Rods have excellent heat resistance, durability, and non adhesive properties. They are lightweight, easy to clean, and corrosion resistant.

Q3: What types of textile applications can Alumina Insulator Rods be used for?

A3. Alumina Insulator Rods can be used in various textile applications, including weaving, knitting, embroidery, and dyeing.

Alumina Insulator