The main difference between JM insulating brick and ordinary insulating brick lies in the material properties, production technology, use scenarios and quality standards. The following is a detailed comparison:

I. Material properties

Thermal conductivity: JM insulating brick has a lower thermal conductivity and a more significant thermal insulation effect. For example, the thermal conductivity of JM-28 is only 0.35 ~ 0.4 W/(m k) at 350℃, while that of ordinary insulating brick is usually higher.

Fire resistance: JM insulating brick has a higher fire resistance. For example, the fire resistance of JM-30 can reach 1550℃, which is suitable for direct contact with flame.

Impurity content: JM insulating brick has low impurity content and extremely low iron and alkali metal oxide content, so it has high fire resistance.

Strength: JM insulating brick has higher high-temperature compressive strength, which ensures the strength and stability of masonry.

II. Production technology

Formula design: JM insulating brick uses high-purity raw materials, such as industrial Al₂O₃ powder and well-sintered bauxite, and adds sawdust and polystyrene balls to prepare light bricks.

Molding technology: advanced production technology, such as extrusion molding, is adopted to ensure the accurate appearance and size of the brick body.

III. Usage scenarios

High temperature environment: JM insulating brick is suitable for high temperature industrial furnaces and equipment, such as cracking furnaces, hot blast stoves, glass melting furnaces, etc.

Direct contact with flame: some models (such as JM-30) can directly contact with flame, and have high temperature resistance, corrosion resistance and good thermal shock resistance.

Energy saving effect: JM insulating brick has remarkable energy saving effect in intermittent operation due to its low thermal conductivity and low thermal capacity.

IV. Quality standards

Physical and chemical indexes: JM insulating brick has strict physical and chemical indexes, such as bulk density, flexural strength and compressive strength.

Customization: JM insulating brick can customize products with different shapes, sizes and performances according to customers' needs.

V. Characteristics of ordinary insulating brick

Universality: Ordinary insulating brick is suitable for a variety of high-temperature equipment, but its performance is relatively low.

Cost: The production process of ordinary insulating brick is relatively simple and the cost is low.

Construction Difficulty: The construction of ordinary insulating brick is relatively difficult, and the technical requirements for construction personnel are high.

VI. Summary

JM insulating brick is superior to ordinary insulating brick in performance, production technology and quality standards, especially in high temperature environment and energy-saving effect. JM insulating brick is a more suitable choice if the application scenario has high requirements on fire resistance, heat insulation effect and service life.