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A kind of manufacturing method of ceramic lined aluminum tube

A technology of ceramic lining and aluminum tube is applied in the field of manufacturing ceramic lining aluminum tube, which can solve the problems of high transportation cost and non-corrosion resistance on the outer surface, and achieve the effects of simple equipment, low cost and reduced transportation cost.

Inactive Publication Date: 2016-07-13
WUHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a method for preparing ceramic-lined aluminum pipes, so as to solve the problems of high transportation cost and non-corrosion-resistant outer surface of existing ceramic-lined steel pipes

Method used

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  • A kind of manufacturing method of ceramic lined aluminum tube
  • A kind of manufacturing method of ceramic lined aluminum tube
  • A kind of manufacturing method of ceramic lined aluminum tube

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The aluminum tube to be formed is 6061, 80mm in length, 20mm in inner diameter, and 41mm in outer diameter. Process a pair of aluminum tube and crucible according to the steps. After preheating, follow the figure 1 Set up the device. Al+SnO with a mass fraction of 73% 2 (Strictly follow the reaction ratio, that is, the molar ratio is 4:3), 23% excess Al powder, 4% CaF 2 Pour the powder into the aluminum tube and crucible, insert the fuse, ignite and ignite to cause a self-propagating reaction. Under the action of gravity, the molten product is separated and deposited on the inner surface of the aluminum tube, and the self-propagating ceramic is completed. Preparation of lined composite aluminum tubes. The thickness of the obtained ceramic lining layer is about 1mm.

[0034] The prepared ceramic-lined aluminum tube sample was observed under a light microscope, which showed that the ceramic layer was tightly bonded to the aluminum substrate, but no obvious metal trans...

Embodiment 2

[0036] The aluminum tube to be formed is 6061, 80mm in length, 20mm in inner diameter, and 41mm in outer diameter. Process a pair of aluminum tube and crucible according to the steps. After preheating, follow the figure 1 Set up the device. Al+SnO with a mass fraction of 78% 2 (Strictly follow the reaction ratio, that is, the molar ratio is 4:3), 18% excess Al powder, 4% CaF 2 Pour the powder into the aluminum tube and crucible, insert the fuse, ignite and ignite to cause a self-propagating reaction. Under the action of gravity, the molten product is separated, and the inner surface of the aluminum tube is welded, that is, the self-propagating ceramic is completed. Preparation of lined composite aluminum tubes. The thickness of the obtained ceramic lining layer is about 1mm.

[0037] The prepared ceramic-lined aluminum tube sample was observed under a light microscope, which showed that the ceramic layer was tightly bonded to the aluminum substrate, but no obvious metal tr...

Embodiment 3

[0039] The aluminum tube to be formed is 6061, 80mm in length, 20mm in inner diameter, and 41mm in outer diameter. Process a pair of aluminum tube and crucible according to the steps. After preheating, follow the figure 1 Set up the device. Al+SnO with a mass fraction of 83% 2 (Strictly follow the reaction ratio, that is, the molar ratio is 4:3), 13% excess Al powder, 4% CaF 2 Pour the powder into the aluminum tube and crucible, insert the fuse, ignite and ignite to cause a self-propagating reaction. Under the action of gravity, the molten product is separated and deposited on the inner surface of the aluminum tube, and the self-propagating ceramic is completed. Preparation of lined composite aluminum tubes. The thickness of the obtained ceramic lining layer is about 1mm.

[0040] The prepared ceramic-lined aluminum tube sample was observed under a light microscope, which showed that the ceramic layer was tightly bonded to the aluminum substrate, but no obvious metal trans...

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Abstract

The invention provides a manufacturing method for a ceramic lining aluminum pipe. By the utilization of reaction of aluminum and stannic oxide, the ceramic lining aluminum pipe is manufactured through a gravity self-propagating method, and a manufactured ceramic lining layer is compact in structure and is tightly combined with an aluminum substrate. Because the aluminum density of the substrate is small, the transportation cost can be obviously lowered; in addition, due to an excellent corrosion resisting property, the manufactured ceramic lining aluminum pipe can provide service in a worse environment. The whole manufacturing process is low in energy consumption and easy to implement.

Description

technical field [0001] The invention provides a method for manufacturing a ceramic-lined aluminum tube, which belongs to the technical field of self-propagating molding. Background technique [0002] Due to its excellent wear resistance and corrosion resistance, ceramic lined pipes are widely used in the transmission of petroleum and ore. At present, the technology of preparing ceramic lined pipes by high temperature self-propagating method is relatively mature. [0003] The high-temperature self-propagating (SHS) preparation of ceramic tube technology is characterized by the formation of smelting reduction metal liquid and Al by thermothermic reaction. 2 o 3 , and under the conditions of centrifugal force or gravity, the reactants are separated, the specific gravity of Al 2 o 3 Coated on the inner wall of the pipe, and the reduced metal transitions between the matrix and the ceramic. A large amount of heat is required to start the reaction, and the reaction itself rele...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F3/23B22F5/12
Inventor 张国栋张晖王帅邱智华
Owner WUHAN UNIV
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