Alumina Lining Plates
Product Description
Alumina lining plate are protective plates made primarily of alumina, used to protect equipment surfaces from wear. Alumina content is available in grades such as 92%, 95%, and 99%, with higher content resulting in better hardness and wear resistance.
Core Characteristics:
High Hardness: Typically reaches a Mohs hardness of 9, second only to diamond, and several times, even tens of times, stronger than manganese steel.
Strong Wear Resistance: Wear resistance far exceeds that of ordinary metals, extending equipment lifespan by several to tens of times.
Good Corrosion Resistance: Resistant to most acids, alkalis, salts, and solvents.
Excellent High Temperature Resistance: Maintains good physical properties at temperatures above 800°C.
Lightweight: Specific gravity is approximately 3.6-3.8 g/cm³, about half that of steel, reducing equipment load.
Smooth Surface: Reduces frictional resistance and improves material flow efficiency.
Product Index
|
Item |
92
|
95
|
T 95
|
99
|
ZTA
|
ZrO2
|
|
Al2O3(%)
|
≥92
|
≥95
|
≥95
|
≥99
|
≥75
|
/
|
|
Fe2O3(%)
|
≤0.25
|
≤0.15
|
≤0.15
|
≤0.1
|
|
/
|
|
ZrO2+Ye2O3(%)
|
/
|
/
|
/
|
/
|
≥21
|
≥99.8
|
|
Density(g/cm3)
|
≥3.60
|
≥3.65
|
≥3.70
|
≥3.83
|
≥4.15
|
≥5.90
|
|
Vickers Hardness(HV20)
|
≧950
|
≧1000
|
≧1100
|
≧1200
|
≧1400
|
≧1100
|
|
Rockwell Hardness(HRA)
|
≧82
|
≧85
|
≧88
|
≧89
|
≧90
|
≧88
|
|
Bending Strength(MPa)
|
≥220
|
≥250
|
≥300
|
≥330
|
≥400
|
≥800
|
|
Compression Strength(MPa)
|
≥1150
|
≥1300
|
≥1600
|
≥1800
|
≥2000
|
/
|
|
Fracture Toughness(MPam 1/2)
|
≥3.2
|
≥3.2
|
≥3.5
|
≥3.5
|
≥5.0
|
≥7.0
|
|
Wear Volume(cm3)
|
≤0.25
|
≤0.20
|
≤0.15
|
≤0.10
|
≤0.05
|
≤0.05 |
1. Mining/Coal Industry
Equipment Protection: Crusher liners, ball mill liners, classifier liners, chute/hopper liners, belt conveyor guide chute liners.
Application Scenarios: Coal crushing, ore grinding (e.g., gold, copper, iron ore), pulverized coal conveying pipelines, resisting material impact and abrasive wear.
2. Cement/Building Materials Industry
Equipment Protection: Cement rotary kiln inlet liners, grate cooler liners, cyclone separator liners, conveying pipeline liners.
Application Scenarios: Cement clinker crushing, raw material conveying, high-temperature flue gas treatment, resistant to high temperatures (up to 1600℃) and material erosion.
3. Power Industry
Equipment Protection: Boiler furnace liners, coal mill liners, fly ash conveying pipeline liners, desulfurization tower liners.
Application Scenarios: High-temperature protection for thermal power/cogeneration boilers, fly ash grinding and conveying, corrosion protection for desulfurization systems, combining wear resistance and corrosion resistance.
4. Metallurgical Industry
Equipment Protection: Blast furnace tapping trough lining, converter lining, continuous casting machine crystallizer lining, rolling mill guide lining.
Application Scenarios: Iron and steel smelting, non-ferrous metal casting, resistant to high-temperature molten metal impact and chemical corrosion.
5. Chemical/Pharmaceutical Industry
Equipment Protection: Reactor lining, agitator blade lining, material conveying pipeline lining, centrifuge lining.
Application Scenarios: Conveying corrosive materials (acid and alkali solutions), mixing and grinding chemical raw materials, resisting chemical corrosion and material abrasion.
6. Ceramics/Glass Industry
Equipment Protection: Ceramic raw material ball mill lining, glass kiln lining, raw material conveying chute lining.
Application Scenarios: Ceramic powder grinding, glass melting production, resistant to high-temperature and high-hardness material grinding.
Company Profile
Shandong Robert New Material Co., Ltd. is located in Zibo City, Shandong Province, China, which is a refractory material production base. We are a modern enterprise that integrates the research and development, production, sales, kiln design and construction, technology, and export refractory materials. We have complete equipment, advanced technology, strong technical strength, excellent product quality, and good reputation. Our factory covers over 200 acres and an annual output of shaped refractory materials is approximately 30000 tons and unshaped refractory materials is 12000 tons.
Our main products of refractory materials include: alkaline refractory materials; aluminum silicon refractory materials; unshaped refractory materials; insulation thermal refractory materials; special refractory materials; functional refractory materials for continuous casting systems.
Frequently Asked Questions
Need help? Be sure to visit our support forums for answers to your questions!
We are a real manufacturer, our factory is specialized in producing refractory materials for more than 30 years. We promise to provide the best price, the best pre-sale and after-sale service.
For each production process, RBT has a complete QC system for chemical composition and physical properties. And we will test the goods, and the quality certificate will be shipped with the goods. If you have special requirements, we will try our best to accommodate them.
Depending on the quantity, our delivery time is different. But we promise to ship as soon as possible with guaranteed quality.
Of course, we provide free samples.
Yes, of course, you are welcome to visit RBT company and our products.
There is no limit, we can provide the best suggestion and solution according to your situation.
We have been making refractory materials for more than 30 years, we have strong technical support and rich experience, we can help customers design different kilns and provide one-stop service.
