Judging from the existing alumina tube products in the market, its main raw material is alumina. Alumina has a wide range of applications. We can divide it into two categories according to its convexity: one is metallurgical alumina used for electrolytic aluminum production, which accounts for most of the alumina production; the other is non-metallurgical alumina. Including aluminum hydroxide and alumina for non-metallurgical use, also known as multi-type alumina, which is greatly different from metallurgical alumina because of its different functions, mainly in terms of purity, chemical composition, morphology, morphology, etc. .
Alumina is the main raw material for making aluminum. To solve the problem of raw materials, we need to be familiar with the process of manufacturing alumina pipes so that it can be produced smoothly. Nufferco has comprehensive capabilities in precision ceramic milling, molding, molding, sintering and processing, and can provide customers with professional solutions on precision ceramics. It can produce all kinds of precision shaped parts according to customer needs. It is currently the most professional fully independent manufacturer of zirconia and boron nitride products in China.

Alumina tube process flow:
first step: mold design
second step: raw material deployment
third step: product sintering
fourth step: precision machining
fifth step: dimension detection
Taicang Newfolk‘s alumina tube using alumina as raw material There are many kinds of products, including alumina crucibles, alumina boxes, alumina insulated tiles, alumina insulated bases, etc., to meet the gem, photovoltaic, aluminum melting, metallurgy, chemical, electronics, power, textile, nuclear industry and aviation Demands in aerospace and other fields, adapt to a variety of harsh working environments such as high temperature, high pressure, high wear and corrosion. We will introduce the parameters of alumina crucible and alumina box in detail to let customers know more.

Product name: Alumina crucible
Material: Alumina
structure: Ionic crystal
Temperature range: 0 ~ 1500 ° C
Applicable places: Ingot, photovoltaic

Features: high purity, good chemical resistance, good temperature resistance

Product name: High aluminum box bowl
material for sapphire substrate Material: Alumina
structure: Ionic crystal
Temperature range: 0 ~ 1200 ℃

Application: polycrystalline silicon, single crystal silicon ingot furnace

Features:
Operating temperature: ≮ 1650 ° C. The
surface is smooth and does not
lose powder or slag . AL2O3≥92
Fe2O3≤0.08
does not contain free silica.
Na2O≤0.15%
porosity: 10% at
1400 ℃ flexural strength: 16.5Mpa at
1000 ℃ thermal expansion coefficient:
at1650 ℃ non-volatile matter: 5.5 * 10-6
use: 5N alumina powder calcination at high temperature, high purity zirconia powder calcination , Highly corrosive powder calcination, sapphire substrate sintering, etc.