Magneisa Forsterite Brick

Introduction

 

Magneisa Forsterite Brick is an alkaline refractory material with magnesia olivine (2MgO·SiO₂, abbreviated as M2Si) as the main crystal phase. It has certain resistance to alkaline slag, high refractoriness and load softening temperature, and strong resistance to oxidation and iron erosion.

Raw materials such as olivine, serpentine, pure olivine, and talc are used, with an appropriate amount of sintered magnesia added. The bricks are sintered in an oxidizing atmosphere. The sintering temperature increases accordingly with the amount of magnesia added.

These bricks are widely used in the metallurgical industry for flat furnaces, converters, electric furnace linings, and non-ferrous metal smelting kiln linings. They are also used in high-temperature industrial kilns for glass, cement, and other applications. Magnesia olivine refractory bricks are important refractory materials for resisting alkaline erosion in high-temperature environments.

Excellent high-temperature resistance:

It can withstand temperatures above 1700 °C, maintaining a stable structure at high temperatures. Its low coefficient of linear expansion and good thermal shock stability make it an ideal material for high-temperature industrial furnaces.

Excellent slag resistance:

It has strong resistance to alkaline slag and molten metals, ensuring long-term stability in metallurgical and non-ferrous metal smelting processes. It is particularly suitable for working conditions involving contact with alkaline substances.

Good thermal shock resistance:

Its low thermal expansion coefficient and high structural integrity allow it to withstand rapid temperature changes without cracking or rupturing.

High mechanical strength:

It maintains structural stability under heavy loads, making it suitable for both load-bearing and non-load-bearing furnace linings.

Low thermal conductivity:

Magneisa forsterite brick have low thermal conductivity, which improves energy efficiency by reducing heat loss and helping maintain high temperatures within the equipment. This leads to significant energy and cost savings for users.

Environmentally friendly:

Compared to magnesia-chrome bricks, magneisa forsterite brick do not produce toxic substances. As a green refractory material, they are harmless to the environment and can be widely used in high-temperature applications, especially as environmental awareness increases.

The main raw material is magnesium olivine ore. An appropriate amount of binding agents (such as clay, water glass, etc.) and additives are usually added to improve molding performance and high-temperature properties.

The production process includes raw material crushing, grinding, batching, molding, drying, and high-temperature firing. The firing temperature is generally between 1500 °C and 1600 °C, allowing the brick body to achieve densification and form a stable mineral structure.

1. Metallurgical Industry

Iron and steel smelting:

Commonly used in flat furnaces, converters, and electric furnace linings (such as furnace bottoms, furnace walls, and other parts). These bricks can resist erosion from molten steel and slag (especially alkaline slag), while also withstanding high temperatures (above 1600 °C) and temperature fluctuations during the smelting process.

Non-ferrous metal smelting:

Widely used in the linings of smelting furnaces for copper, nickel, lead, zinc, and other non-ferrous metals (e.g., reverberatory furnaces, blast furnaces). They provide resistance against chemical corrosion and the intense scouring caused by molten non-ferrous metals and their smelting slag.

2. Building Materials Industry

Glass industry:

Used in the regenerator chamber and sidewalls of glass kilns, where they can withstand the high temperatures of molten glass (approximately 1500 °C) and the corrosive effects of alkaline components in glass raw materials. They also tolerate cyclical temperature fluctuations within the kiln.

Cement industry:

Applied in the transition zone of cement rotary kilns, coolers, and other areas. These bricks resist abrasion and high-temperature erosion from cement clinker, kiln dust, and related materials.

3. Other Industrial Fields

Chemical industry:

Used in certain high-temperature chemical reaction kilns (such as roasting kilns for alkaline materials), where they withstand harsh chemical corrosion at elevated temperatures.

Environmental protection:

Employed as lining materials in high-temperature equipment such as waste incinerators and hazardous waste treatment kilns, providing resistance to the corrosive effects of complex flue gases and slag produced during incineration.

Summary:

The core advantage of magnesia olivine refractory bricks lies in their strong resistance to alkaline substances and excellent high-temperature stability. These properties effectively extend the service life of kilns and ensure the stable operation of high-temperature industrial processes.

Strict Production Process

 

Our magnesia olivine refractory bricks are produced using high-purity magnesia olivine ore and advanced manufacturing techniques to ensure consistent quality and performance. From raw material selection to firing at 1600 °C, every brick undergoes strict quality control. The result is a dense, uniform structure with low porosity.

Customised Production

 

The standard brick size is 230 × 114 × 65 mm.

We offer magnesia olivine bricks in various shapes and sizes, including knife-shaped bricks, universal curved bricks, runner bricks, and others. Additionally, we produce magnesia olivine square bricks, which are commonly used in the chambers of glass furnaces.

Service

 

Fast delivery:Shipment within 30 days after payment.

Timely update of logistics:Professional staff provide regular updates on logistics information.

After-sales protection:Technical personnel can assist customers in the use of products.

 

Zinfon offers a wide range of refractory materials, allowing customers to purchase all products in one place. If customers are unsure about which refractory product is most suitable, our specialized technicians are available to assist you and guide you through the construction process.

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