Heat Treat Alumina Ceramic Tube 92% 95% For Protective Casing

Heat Treat Alumina Ceramic Tube

Heat Treat Alumina Ceramic Tube has good impact resistance and heat resistant. It can be widely used in various fields industry because of the excellent stable chemical properties of alumina ceramic. And it have important application on some industry, such as textile, photoelectric, semiconductor, automobile, machinery, solar energy and so on.

Heat Treat Alumina Ceramic Tube made by alumina ceramics, also known as corundum ceramics, are a kind of α-A1203 as the main crystal phase. There are different series according to the different content of A1203 and additives. For example, according to the different content of A1203, it can be divided into 75%, 85%, 95%, 99%, etc.; according to the difference of its main crystal phase, it can be divided into mullite porcelain, corundum, mullite porcelain and corundum porcelain; Divided into chrome corundum, titanium corundum and so on.According to the need of customer, it can made different shapes by diffferent main crstal phase and content of alumina.

Among them, 99 alumina ceramic materials are used to make high-temperature crucibles, refractory furnace tubes and special wear resistant materials, such as ceramic bearings, ceramic seals and water valve plates; 95 alumina ceramics are mainly used for corrosion-resistant and wear-resistant parts; 85ceramics can be sealed with metals such as molybdenum, niobium, and tantalum, and some are used as electric vacuum devices, because part of talc is often mixed into it, 85 ceramics are improved the electrical properties and mechanical strength.

Alumina Ceramic is one of the most stable chemical properties and the highest mechanical strength among refractory oxides; Alumina ceramic does not react with most molten metals, only Mg, Ca, Zr and Ti could have a reducing effect on it above a certain temperature; hot Sulfuric acid can dissolve alumina, and hot HCl and HF also have some corrosive effect on it; the vapor pressure and decomposition pressure of alumina ceramics are the smallest.

1.Protective Casing

The protective casing is mainly used for supporting thermocouple/thermal resistance assort. To product the normal operation of thermocouple and thermal resistance, please pre-installed on various devices which are inconvenient disassemble under pressure.

Different materials of protective casing are used to resist and corrosion of temperature measuring elements by different media. The working temperature of corundum casing can reach 1600℃, and the high lead casing can reach 1400℃. The product meet standards:GB2935-1982,JC 508-1994. Can be customized according to user requirements.

2.Crucible Box:

Product Usage:

Crucible box is widely used in coal quality testing, metal smelting, building materials industry, machinery manufacturing, powder metallurgy and other industries, because it the characteristics of fine structure, low thermal conductivity, small thermal expansion coefficient, high dimensional accuracy of finished products, no deformation at high temperature, good thermal shock stability, good electrical properties, and good chemical corrosion resistance. It is a container for melting, refining metal liquids, solid-liquid heating and reaction, and is the basis for ensuring the smooth progress of chemical reactions.

Specifications:

According to shape of crucible box, it can be divided into many shapes, such as rectangle, square, cylinder, arc, cone, ellipse and special shape. Divided by volume, it can range from 5ml to 2000ml. The shape, size and temperature resistance requirements depends on the actual application requirements of the customer. So it can be arbitrarily selected and has strong applicability.

3. Furnace Tube:

Product Usage:

The usage of furance is as lining for various experimental electric furnaces, mainly to separate the heating element form the substance to be burned, to seal the heating area and to place the substance to be burned. It is formed by advanced technology and then finely fired at 1780 degrees for 8 hours.

The biggest feature is: corrosion resistance, oxidation resistance, leakage prevention and good vacuum performance at high temperature. The wall thickness is uniform, the straightness is good, the tolerance is small, and the insulation is high. It is suitable for use between 1650 to1750 degrees.

Common selection range of furnace tubes:

4.Mullite Ceramics:

Mullite Tube service temperature can reach 1450 degrees, with low mechanical strength and strong thermal shock resistance. It can be used up to 1200℃ in BaCl2 melt. its corrosion resistance to molten metal, combustible gas, metallic oxide and alkali is not good. Normally, it should be installed vertically, when installed horizontally, it should be supported. It is suitable for high temperature ceramics, heat treatment and glass industries.

Mullite saggar has features of no free silicon, no kaolin, no activated alumina, long service life and small thermal expansion coefficient.　

Main features are high temperature bearing capacity, high operation temperature, good thermal stability.

5.Mullite Brick

Mullite brick is a high alumina refractory material with mullite (3Al2O3 2SiO2) as the main crystal phase. Generally, the alumina content is between 65% and 75%. Mineral composition of mullite bricks expect mullite, those lower contain of alumina also contain small amount of glass phase and cristobalite, those with higher alumina content also contain a small amount of corundum. It with High refractoriness, temperature above 1790℃, Under load softening start temperature 1600 ~ 1700 ℃. Normal temperature compressive strength is 70~260MPa. The heat shock resistance is good. It mainly used for hot blast stove top, blast furnace shaft and bottom, window top, glass melting furnace regenerator, ceramic sintering kiln, dead angle lining of petroleum cracking system, etc.

6.Mullite Crucible

Mullite crucible is suitable for precision casting of black and gray, die-casting of various alloys, casting of gold ,silver , and metal jewelry, and other industries.

Physical Properties

1.Thermal power industry

Coal handling system: bucket wheel disc, coal drop hopper, coal drop pipe, belt pulley

Steel ball coal mill: coal mill outlet pipe, wood block separator, coarse powder separator, fine powder separator, powder return pipe

Medium speed coal mill: coal mill barrel, mill static ring, guide vane, inner cone, outlet pipe and elbow

Powder feeding system: powder discharge machine shell, powder discharge machine impeller, pulverized coal pipe elbow, thermometer protection sleeve, pulverized coal mixer, throttling shrinkage hole, expansion joint

2.Steel industry

Conveying system: bucket wheel disc, hopper, silo, belt conveyor skirt, trolley three-way bucket, receiving hopper

Batching system: mixing silo, primary mixing cylinder, secondary mixing cylinder, mixing disc, mixing cylinder scraper, pelletizing disc

Sintering system: ore dressing hopper under vibrating screen, raw material transportation chute, cyclone dust collector and its pipeline, fan impeller Ironmaking system: hopper, blast furnace charging car, blast furnace top unloading tank

Steel ball coal mill: coal mill outlet pipe, wood block separator, coarse powder separator, fine powder separator, powder return pipe

Medium-speed coal mill: medium-speed grinding feed chute, medium-speed grinding cylinder, medium-speed grinding baffle ring, grinding disc scraper, guide vane, inner cone

Dust removal and ash removal system: dust removal pipe, elbow, tee, ash falling pipe, tail dust removal pipe

Powder feeding system: powder discharge machine shell, powder discharge machine impeller, pulverized coal pipe elbow, thermometer protection sleeve, pulverized coal mixer, throttling shrinkage hole, expansion joint

Coking system: coal transfer chute, coke hopper, coke transfer chute, coke weighing hopper, coke receiving funnel, belt conveyor skirt

3.Cement industry

Limestone crushing system and raw fuel pre-homogenization system: chutes, hoppers, belt pulleys

Raw mill system: separator guide vane, separator cone, vertical mill to cyclone pipe, cyclone, fuel mill (steel ball mill), separator shell, inner cone, pulverized coal pipe

Fuel mill (steel ball mill): separator shell, inner cone, pulverized coal pipe, powder return pipe

Sintering system: humidification tower inlet/outlet elbow, tertiary air valve plate, grate cooler to ESP pipe, grate cooler to coal mill air duct, cyclone, ESP grille, clinker storage Elevator feeding chute, crusher feeding chute

Cement mill system: feed roller press chute, feed V-type powder separator chute, powder separator shell, circulating fan impeller, shell, cyclone, inlet and outlet elbows, machine hopper

4.Smelting industry

Feeding system: head slide, silo (middle silo, tail silo), vibrating screen trough, coke hopper, weighing hopper

Batching system: batching hopper, primary (secondary) mixer

Roasting system: single bin pump roasting tube, batching hopper, ash hopper, intermediate bin hopper

Dust removal system: dust removal pipes and elbows

5.Chemical Industry

Feeding system: hopper, silo Dust removal system: dust removal pipe, elbow, fan casing and impeller, cyclone Processing equipment: vibrating mill lining

6.Coal industry

Coal conveying system: chute, hopper, silo Coal washing system: pressure cyclone, non-pressure three-product dense medium cyclone, non-pressure four-product dense medium cyclone, concentrated cyclone group

Conveying system: pipes, elbows, pipes, hoppers, silos, distribution ports

7.Mining industry

Feeding system: hopper, silo

8.Textile industry

Guide wire rod

9.Ceramic industry

Setter plate, hanging rod, fixture Mullite crucible is suitable for precision casting of black and gray, die-casting of various alloys, casting of gold ,silver , and metal jewelry, and other industries.

· Do you company provide design according to drawings?

Yes, we can.

· What’s the package?

According to the size and quantity of products, we will chose the best way.

· Can you provide finished products?

Yes, we can. We can provide finished products with heat treat alumina ceramic tube.