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Oxidation-resistant Pb-Li-V lead-lithium alloy with high thermal stability

A pb-li-v, stable technology, applied in the field of alloys, can solve the problems of complex smelting and pouring equipment and processes, toxic gas polluting the environment, and damaging alloy properties, etc., to achieve high thermal cracking tendency and excellent flame retardancy , to overcome the effect of specific gravity difference

Inactive Publication Date: 2018-06-19
GUANGZHOU YUZHI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these two methods have their unavoidable defects, such as easy to produce toxic gas to pollute the environment and cause flux inclusions to damage the properties of the alloy
In addition, the smelting and pouring equipment and processes are complicated, which increases the cost

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] An oxidation-resistant Pb-Li-V lead-lithium alloy with high temperature thermal stability smelted at 350 degrees. In terms of weight percentage, the chemical composition of the alloy is: Li: 1.5wt.%, V: 0.3wt.%, Sm: 0.6wt.%, B: 0.5wt.%, Ge: 1.6wt.%, Zn: 0.4wt .%, and the balance is lead. The preparation method of the alloy: add the above-mentioned raw materials into the atmosphere-protected induction furnace, and use a silicon carbide crucible; induction heat to 350 degrees to form an alloy solution, and use the electromagnetic stirring effect to fully stir for about 10 minutes; put the alloy liquid in After standing at 350°C for 10 minutes, it is cast into the equipment at the same level as the hot top for semi-continuous casting into the required square and round ingots, and the ingot moves down at a speed of 12m / min. The cast ingot is deformed at room temperature, and the amount of rolling in each pass is 8%; every 3 passes of rolling requires an intermediate heat t...

Embodiment 2

[0022] An oxidation-resistant Pb-Li-V lead-lithium alloy with high temperature thermal stability smelted at 370 degrees. In terms of weight percentage, the chemical composition of the alloy is: Li: 1.5wt.%, V: 0.4wt.%, Sm: 0.6wt.%, B: 0.4wt.%, Ge: 1.6wt.%, Zn: 0.4wt .%, and the balance is lead. The preparation method of the alloy: add the above-mentioned raw materials into the atmosphere-protected induction furnace, and use a silicon carbide crucible; induction heat to 370 degrees to form an alloy solution, and use the electromagnetic stirring effect to fully stir for about 10 minutes; put the alloy liquid in After standing at 370°C for 10 minutes, it is cast into the equipment at the same level as the hot top for semi-continuous casting into the required square and round ingots. The ingot moves down at a speed of 10m / min. The ingot is deformed at room temperature, and the amount of rolling in each pass is 9%; every 3 passes of rolling need to be subjected to an intermediate ...

Embodiment 3

[0025] An oxidation-resistant Pb-Li-V lead-lithium alloy smelted at 390 degrees with high temperature thermal stability. In terms of weight percentage, the chemical composition of the alloy is: Li: 1.7wt.%, V: 0.4wt.%, Sm: 0.6wt.%, B: 0.5wt.%, Ge: 1.8wt.%, Zn: 0.5wt .%, and the balance is lead. The preparation method of the alloy: add the above-mentioned raw materials into the atmosphere-protected induction furnace, and use a silicon carbide crucible; induction heat to 390 degrees to form an alloy solution, and use the electromagnetic stirring effect to fully stir for about 10 minutes; put the alloy liquid in After standing at 390 degrees for 10 minutes, it is cast into the equipment at the same level as the hot top for semi-continuous casting into the required square and round ingots. The ingot moves down at a speed of 12m / min. The ingot is deformed at room temperature, and the amount of rolling in each pass is 9%; every 3 passes of rolling need to be subjected to an interme...

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Abstract

The invention discloses an oxidation-resistant Pb-Li-V lead-lithium alloy with high thermal stability. The alloy comprises the following components in percentage by weight: 1.4-1.8% of Li, 0.2-0.5% ofV, 0.5-0.8% of Sm, 0.3-0.8% of B, 1.4-1.9% of Ge, 0.4-0.6% of Zn, and the balance lead. The lead-lithium alloy has the high thermal stability which is not realized by a traditional lead alloy for a shielding material; and moreover, the lead-lithium alloy is high in oxidation resistance; the lead-lithium alloy is applicable to the fields such as the fields of nuclear piles, medical radioactive source shielding, and nuclear waste treatment in a tropical environment; with the adoption of the lead-lithium alloy, a nuclear reactor system can effectively safely run, and the service life of the system can be prolonged.

Description

technical field [0001] The invention relates to the technical field of alloys, in particular to a lead-lithium alloy. Background technique [0002] In the 21st century when energy is increasingly scarce, nuclear power will become the most important clean, efficient and reliable energy source. During the operation of a nuclear reactor, the core will produce radiation. Among them, gamma rays and neutrons have strong penetrating power, which can cause radiation damage to surrounding objects and personnel. Therefore, effective shielding of gamma rays and neutrons is a necessary requirement for improving the safety and reliability of nuclear reactors, and is of great significance in both national defense and civilian fields. [0003] The use of nuclear energy shows the comprehensive strength of a country and marks the country's national defense strength and national economic level. In order to ensure the safe operation of the nuclear reactor system and improve the operating li...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C11/00C22C1/02C22F1/12C22F1/02
CPCC22C11/00C22C1/02C22F1/02C22F1/12
Inventor 杨长江
Owner GUANGZHOU YUZHI TECH CO LTD
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