High Alumina Bricks
Description
Technical Parameters
Products Description
High alumina brick is a high-performance wear-resistant and impact resistant lining suitable for high impact and high-pressure applications. It has four types of alumina content (90%, 92%, 95%, 99%) and can provide graded performance to match different wear strengths. The higher the alumina content, the longer the hardness, density, and wear life, making it suitable for the harshest material processing environments. They can be made into standard rectangular bricks, or customized into curved, conical, and irregular liners for use in hoppers, pipes, elbows, chutes, and ball mills.
advantage
1. High impact resistance and high voltage resistance
It has high bending and compressive strength, capable of withstanding heavy material impacts and high working pressures without cracking, shattering, or deforming.
2. High wear resistance
High alumina content can provide ultra-high hardness (up to HRA 90) and extremely low wear. The wear volume of 99% alumina grade is as low as ≤ 0.10 cm ³, which extends the service life by 10-20 times compared to steel lining.
3. Enhance the adhesion of composite materials
Rubber is vulcanized around and between alumina bricks and steel backing under high temperature and pressure. This permanent bonding eliminates brick detachment, even under severe vibration and impact.
4. Widely graded and versatile
Four purities can accurately match working conditions: moderate wear is 90%, severe wear is 92%, ultra severe wear is 95%, and extreme high temperature and high corrosion conditions are 99%.
5. Easy to install and replace
High alumina bricks use rubber as the bonding agent. The rubber is pressed around and between the alumina tiles and steel backing plate. The process of high pressure, heat and a superior bonding agent. This ensures removal of the alumina from the plate is virtually impossible.
Application
High alumina bricks are widely used in high wear material handling equipment in heavy industry：
Steel and metallurgy: chute lining and crusher parts.
Thermal power generation and coal: coal hopper, conveying pipe, fan blades, and ash discharge system.
Cement and building materials: raw material chutes, cyclone separators, kiln inlet sections, and grinding equipment.
Mining and mineral processing: ore pipelines, mud elbows, ball mill liners, and classifier components.
Port and bulk cargo handling: Unloader chutes, transfer points, and high impact conveyor sections.
Chemical and industrial: reactor liners, valve seats, and high wear processing equipment.
Customized curved, conical, and irregular liners can be used to adapt to complex equipment surfaces and optimize wear protection.
Technical data
| Category | 90 | 92 | 95 | 99 |
| Al2O3 | ≥90% | ≥92% | ≥ 95% | ≥ 99% |
| ZrO2 | / | / | / | / |
| Density | >3.50g/ cm3 | >3.60g/cm3 | >3.70g/cm3 | >3.83g/cm3 |
| HV 20 | ≥900 | ≥950 | ≥1100 | ≥1200 |
| Rock Hardness HRA | ≥80 | ≥82 | ≥88 | ≥90 |
| Bending Strength MPa | ≥180 | ≥220 | ≥300 | ≥330 |
| Compression strength MPa | ≥970 | ≥1050 | ≥1600 | ≥1800 |
| Fracture Toughness KIc MPam 1/2 | ≥3.5 | ≥3.7 | ≥4.0 | ≥4.2 |
| Wear Volume | ≤0.28 cm3 | ≤0.25cm3 | ≤0.15cm3 | ≤0.10 cm3 |
Why choose alumina bricks from Huao?
1.Support comprehensive customization
We offer high alumina bricks with 90%, 92%, 95%, and 99% alumina content, and support customized shapes, sizes, and thicknesses to fit any equipment and working conditions.
2. Strict quality control and zero complaints
Each batch of products undergoes hardness, density, wear resistance, and adhesive strength testing. Our products have not received any quality complaints from customers worldwide for a long time.
3. Exceeding the structural strength of standard ceramic tiles
Huao's bricks are designed specifically for high impact environments, solving the pain points of fragile thin tiles and short-lived rubber lining, achieving the lowest long-term cost of ownership.
4. Factory direct supply, stable production capacity
As a professional manufacturer, we eliminate intermediaries and offer competitive prices. Mass production ensures stable and on-time delivery of bulk orders.
FAQ
Q1: What purity levels are available for selection?
A1: We offer 90%, 92%, 95%, and 99% alumina grades, suitable for light, heavy, overweight, and extreme wear conditions, respectively.
Q2: Can you produce customized shaped bricks?
A2: Yes, we can customize the production of curved, conical, wedge-shaped, and irregular liners according to customer needs to accommodate hoppers, elbows, pipelines, and other complex equipment surfaces.
Q3: How are high alumina bricks installed?
A3: They are bonded to the surface of the equipment using high-strength wear-resistant adhesives.
Q4: What is the service life compared to steel lining?
A4: Our products have a lifespan 10-20 times longer than steel lining, greatly reducing maintenance and replacement downtime.
Q5: What packaging do you use?
A5: The packaging is customized according to the size of the bricks and the order quantity, using shockproof cardboard boxes, wooden boxes, and pallets to prevent damage during transportation.
If you need heavy-duty impact resistant and wear-resistant lining that is more durable than tiles, rubber, and steel lining, our products can provide reliable protection for your equipment.
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