Casting preparation method of aluminum-based boron carbide composite material

A technology of aluminum-based boron carbide and composite materials, which is applied in the field of composite material preparation, can solve the problems of complex process and uneven distribution of boron carbide powder, and achieve the effect of simple process, uniform internal structure and compact structure

Inactive Publication Date: 2019-05-31
SICHUAN JUNENG NUCLEAR TECH ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a melting and casting preparation method of aluminum-based boron carbide composite materials to solve the problems of complex and uneven distribution of boron carbide powder in the existing process

Method used

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  • Casting preparation method of aluminum-based boron carbide composite material
  • Casting preparation method of aluminum-based boron carbide composite material
  • Casting preparation method of aluminum-based boron carbide composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Step 1. Prepare materials, weigh 4.5kg of boron carbide powder with a particle size of 10um-50um, spread it in a container and put it into a resistance furnace, heat it at 370°C for 2.4h in the atmosphere, and then place it in a vacuum oven to dry Store at 120°C, vacuumize after passing inert gas.

[0037] Step 2. Take a certain amount of aluminum ingots and aluminum-titanium intermediate alloys, cut them into blocks, put them into the cleaning tank and use the aluminum product oil cleaning solution to clean to remove surface oil and impurities, rinse with 0.2-0.8MPa tap water after cleaning, and then Blow dry with 0.2-0.6MPa compressed air.

[0038] Step 3. Weigh quantitative aluminum ingots and aluminum-titanium intermediate alloys according to the proportion, place them in the crucible of a vacuum stirring furnace, evacuate to 40Pa, heat and melt to obtain an aluminum alloy melt with the composition shown in the table below, and wait for about 50 minutes to completel...

Embodiment 2

[0045] Step 1. Prepare materials, weigh 6.5kg of boron carbide powder with a particle size of 10um-50um, spread it in a container and put it into a resistance furnace, heat it at 380°C for 2.2h in the atmosphere, and then place it in a vacuum oven to dry Store at 150°C, vacuumize after passing inert gas.

[0046]Step 2. Take a certain amount of aluminum ingots and aluminum-titanium intermediate alloys, cut them into blocks, put them into the cleaning tank and use the aluminum product oil cleaning solution to clean to remove surface oil and impurities, rinse with 0.2-0.8MPa tap water after cleaning, and then Blow dry with 0.2-0.6MPa compressed air.

[0047] Step 3. Weigh quantitative aluminum ingots and aluminum-titanium intermediate alloys according to the proportion, place them in the crucible of a vacuum stirring furnace, evacuate to 40Pa, heat and melt to obtain an aluminum alloy melt with the composition shown in the table below, and wait for about 50 minutes to completely...

Embodiment 3

[0054] Step 1. Prepare materials, weigh 9.2kg of boron carbide powder with a particle size of 10um-50um, spread it in a container and put it into a resistance furnace, heat it at 440°C for 1.6h in the atmosphere, and then place it in a vacuum oven to dry Store at 170°C, vacuumize after passing inert gas.

[0055] Step 2. Take a certain amount of aluminum ingots and aluminum-titanium intermediate alloys, cut them into blocks, put them into the cleaning tank and use the aluminum product oil cleaning solution to clean to remove surface oil and impurities, rinse with 0.2-0.8MPa tap water after cleaning, and then Blow dry with 0.2-0.6MPa compressed air.

[0056] Step 3. Weigh quantitative aluminum ingots and aluminum-titanium intermediate alloys according to the proportion, place them in the crucible of a vacuum stirring furnace, evacuate to 40Pa, heat and melt to obtain an aluminum alloy melt with the composition shown in the table below, and wait for about 50 minutes to completel...

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Abstract

The invention discloses a casting preparation method of an aluminum-based boron carbide composite material. The aluminum-based boron carbide composite material prepared by the method is uniform in boron carbide distribution, no agglomeration is caused, the plate surface is flat and free of impurities, the structure of the plate is compact, and no obvious casting defects such as pits, cracks and shrinkage holes exist. The preparation method is simple in process, simple in equipment, low in cost, and suitable for large-scale industrial production, and has development prospect.

Description

technical field [0001] The invention belongs to the field of composite material preparation, in particular to a melting and casting preparation method for an aluminum-based boron carbide composite material slab suitable for neutron absorbing materials. Background technique [0002] The aluminum-based boron carbide composite material is composed of boron carbide uniformly dispersed in the aluminum alloy matrix, and is an important material in the process of spent fuel treatment. It has many advantages such as radiation resistance, high strength, low density and excellent neutron absorption performance. The application of neutron shielding is very extensive. [0003] The solution infiltration method, powder metallurgy method and melting casting method are the main methods for the preparation of aluminum-based boron carbide composite materials at present. Among them, the stirring casting method has many advantages such as low cost, high output and high reliability, and is suit...

Claims

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Application Information

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IPC IPC(8): C22C1/10C22C1/03C22C21/00C22C32/00
Inventor 李栋戴亚辉宋小琴陈昌伟兰江范勇
Owner SICHUAN JUNENG NUCLEAR TECH ENG
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