
Retro Porcelain TV Radio Satellite Socket Vintage Wall Socket
Alumina ceramic tube is a special corundum ceramic tube made of Al2O3 as the main raw material, rare metal oxide as the flux, and calcined at a high temperature of 1,700.
We take honest management, technological innovation, and self-transcendence as our business philosophy to meet market demand for alumina ceramic crucible for sale, electric preheating ceramic heating pad, ceramic fiber module cost per square foot. In the past few years, our company has established a wide and good reputation in brand, scale, market, efficiency, scientific research, talents and management. We are willing to establish and maintain long-term fixed cooperative relationship with new and old customers, mutual benefit, seek common development, and provide quality services. We will follow the scientific development concept, establish the development concept of an economical society, and take the road of strong alliances. We believe that science and technology can enrich and strengthen a country, while humanities can build and revitalize a country.
Description
Alumina ceramic tube is a special corundum ceramic tube made of Al2O3 as the main raw material, rare metal oxide as the flux, and calcined at a high temperature of 1,700. It is widely used in various industrial furnace fields, as furnace tube (wire tube, wire winding tube, oxygen blowing tube, etc.), support, threading, insulation and other purposes.
Property
Ceramic tube is mainly based on grouting molding, and there are other molding methods such as extrusion and hot die casting.

Classification
Alumina ceramics are divided into two types: high-purity type and ordinary type.
High-purity alumina ceramics are ceramic materials with an Al2O3 content of more than 99.9%. Because their sintering temperature is as high as 1650-1990 ℃, and the transmission wavelength is 1 to 6 μm, they are generally made into molten glass to replace platinum crucibles; use its light transmission It can be used as a sodium lamp tube, and it can be used as an integrated circuit substrate and high-frequency insulating material in the electronics industry.
Ordinary alumina ceramics are classified into 99 porcelain, 95 porcelain, 90 porcelain, 85 porcelain and other varieties according to different Al2O3 content. Sometimes those with 80% or 75% Al2O3 content are also classified as ordinary alumina ceramic series. Among them, 99 alumina porcelain is used to make high temperature crucibles, refractory furnace tubes and special wear-resistant materials, such as ceramic bearings, ceramic seals and water valve discs; 95 alumina porcelain is mainly used as corrosion-resistant and wear-resistant parts; 85 porcelain Because it is often mixed with some talc to improve the electrical performance and mechanical strength, it can be sealed with metals such as molybdenum, niobium, and tantalum, and some are used as electrical vacuum devices.
Data Sheet of Ceramic Tube
Item | Content (%) |
Al2O3 | 99.3 |
SiO2 | 0.3-0.5 |
CaO+MgO | 0.2-0.3 |
K2O+Na2O | 0.15-0.3 |
Fe2O3 | <0.05 |
Others | <0.05 |
Q&A
1. How about the working temperature?
The working temperature ranges from 1650 to 1700℃
2. What is the Aluminum content?
The aluminum content is 95% or 99%.
We continue to take the development idea of low cost and high efficiency, and our Retro Porcelain TV Radio Satellite Socket Vintage Wall Socket start to develop from low end to middle and high end. Our R&D strategy is to achieve differentiation of product performance through technological differentiation, enhance the technical added value of our products, bring better industry application solutions, and better serve new applications and new markets. Our company was founded to determine the core corporate culture of integrity, quality, service and innovation.
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