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Aluminum-blocking brick

A technology of aluminum bricks and weight percentages, which is applied in the field of aluminum blocking bricks and can solve problems such as reducing the service life of aluminum blocking bricks

Inactive Publication Date: 2014-09-10
浙江立鑫高温耐火材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The melting point of aluminum is 660°C, therefore, the aluminum water will infiltrate the surface of the aluminum blocking brick, thereby reducing the service life of the aluminum blocking brick

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A kind of aluminum retaining brick, the component of aluminum retaining brick comprises Al 2 o 3 , SiO 2 , Fe 2 o 3 , CaO and BaCO 3 , the weight percentage of each component in the aluminum blocking brick is Al 2 o 3 95%, SiO 2 2.5%, Fe 2 o 3 0.3%, CaO1%, BaCO 3 1.2%.

[0016] The compressive strength of the above-mentioned aluminum-blocking bricks can reach 120 MPa, but the density of the aluminum-blocking bricks in this embodiment is slightly poor. The aluminum water channel is basically equipped with three layers of aluminum blocking bricks. The first layer of aluminum blocking bricks is directly in contact with the aluminum water, the second layer of aluminum blocking bricks is set on the first layer of aluminum blocking bricks, and the third layer of aluminum blocking bricks is used to support the second layer of aluminum blocking bricks. One layer of aluminum retaining bricks and the second layer of aluminum retaining bricks. The aluminum retaining bri...

Embodiment 2

[0018] A kind of aluminum retaining brick, the component of aluminum retaining brick comprises Al 2 o 3 , SiO 2 , Fe 2 o 3 , CaO and BaCO 3 , the weight percentage of each component in the aluminum blocking brick is Al 2 o 3 92%, SiO 2 3.5%, Fe 2 o 3 0.5%, CaO1.3%, BaCO 3 2.7%.

[0019] The compressive strength of the aluminum retaining bricks with the above components reaches 108 MPa, but the density of the aluminum retaining bricks in this example is higher than that in Example 1. The aluminum water channel is basically equipped with three layers of aluminum blocking bricks. The first layer of aluminum blocking bricks is directly in contact with the aluminum water, the second layer of aluminum blocking bricks is set on the first layer of aluminum blocking bricks, and the third layer of aluminum blocking bricks is used to support the second layer of aluminum blocking bricks. A layer of aluminum retaining bricks and a second layer of aluminum retaining bricks, the a...

Embodiment 3

[0021] A kind of aluminum retaining brick, the component of aluminum retaining brick comprises Al 2 o 3 , SiO 2 , Fe 2 o 3 , CaO and BaCO 3 , the weight percentage of each component in the aluminum blocking brick is Al 2 o 3 90%, SiO 2 4.5%, Fe 2 o 3 0.7%, CaO1.7%, BaCO 3 3.1%.

[0022] The compressive strength of aluminum blocking bricks with the above components reaches 101MPa, but in this example, Al 2 o 3 With CaO, BaCO 3 The two fully react, thereby maximizing the density of aluminum retaining bricks. The aluminum water channel is basically equipped with three layers of aluminum blocking bricks. The first layer of aluminum blocking bricks is directly in contact with the aluminum water, the second layer of aluminum blocking bricks is set on the first layer of aluminum blocking bricks, and the third layer of aluminum blocking bricks is used to support the second layer of aluminum blocking bricks. A layer of aluminum retaining bricks and a second layer of alumi...

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Abstract

The invention provides an aluminum-blocking brick and belongs to the field of refractory materials. By changing the chemical composition of the aluminum-blocking brick, the speed at which melt aluminum infiltrates a melt aluminum flow channel is slowed down. The aluminum-blocking brick comprises the following components in percentages by weight: 90%-95% of Al2O3, 2.5%-4.5% of SiO2, 0.3%-0.7% of Fe2O3, 1%-1.7% of CaO and 1.2%-3.1% of BaCO3.

Description

technical field [0001] The invention relates to an aluminum blocking brick, which belongs to the field of refractory materials. Background technique [0002] Aluminum has low relative density, good ductility and good electrical conductivity, so it is widely used in aviation, construction, automobile and other fields. Aluminum needs to be melted in a specific boiler. The boiler is usually equipped with an aluminum water flow channel formed by connecting several aluminum blocking bricks. The aluminum blocking bricks can make the aluminum water in the boiler flow out smoothly. The melting point of aluminum is 660°C, therefore, the aluminum water will infiltrate the surface of the aluminum blocking brick, thereby reducing the service life of the aluminum blocking brick. Contents of the invention [0003] The invention provides an aluminum retaining brick, which slows down the speed of aluminum water invading the aluminum water flow channel by changing the chemical composition...

Claims

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Application Information

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IPC IPC(8): C04B35/66
Inventor 高寿林
Owner 浙江立鑫高温耐火材料有限公司
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