Oxidation-resistant Pb-Li-Ti lead-lithium alloy with extremely-low recrystallization temperature

A recrystallization temperature, pb-li-ti technology, applied in the field of alloys, can solve the problems of complex smelting and pouring equipment and processes, toxic gases pollute the environment, damage the properties of alloys, etc. performance, the effect of overcoming the difference in specific gravity

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-Ti lead-lithium alloy smelted at 350 degrees with an extremely low recrystallization temperature. In terms of weight percentage, the chemical composition of the alloy is: Li: 1.6wt.%, Ti: 0.5wt.%, Te: 0.2wt.%, V: 0.6wt.%, Sn: 1.4wt.%, Bi: 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 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 16%; every 3 passes of rolling requires an in...

Embodiment 2

[0022]An oxidation-resistant Pb-Li-Ti lead-lithium alloy smelted at 370 degrees with an extremely low recrystallization temperature. In terms of weight percentage, the chemical composition of the alloy is: Li: 1.8wt.%, Ti: 0.4wt.%, Te: 0.2wt.%, V: 0.7wt.%, Sn: 1.4wt.%, Bi: 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 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 15%; every 3 passes of rolling require an intermediate ...

Embodiment 3

[0025] An oxidation-resistant Pb-Li-Ti lead-lithium alloy smelted at 390 degrees with an extremely low recrystallization temperature. In terms of weight percentage, the chemical composition of the alloy is: Li: 1.5wt.%, Ti: 0.6wt.%, Te: 0.2wt.%, V: 0.7wt.%, Sn: 1.9wt.%, Bi: 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 18%; every 3 passes of rolling require an interm...

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Abstract

The invention discloses oxidation-resistant Pb-Li-Ti lead-lithium alloy with an extremely-low recrystallization temperature and a processing technology thereof. The oxidation-resistant Pb-Li-Ti lead-lithium alloy comprises, by weight, 1.2%-2.0% of Li, 0.3%-0.8% of Ti, 0.1%-0.4% of Te, 0.5%-0.9% of V, 1.0%-2.0% of Sn, 0.4%-0.8% of Bi and the balance lead. The lead-lithium alloy has a high anti-oxidation property which cannot be achieved by lead alloy for a traditional shielding material, and the recrystallization temperature is low. The oxidation-resistant Pb-Li-Ti lead-lithium alloy is used inthe fields of nuclear piles, medical radioactive source shielding, nuclear waste treatment and the like in the polar region environment, safe operation of a nuclear reactor system can be effectivelyguaranteed, and the service life of the system is prolonged.

Description

technical field [0001] The invention relates to the technical field of alloys, in particular to a lead-lithium alloy. Background technique [0002] Together with thermal power and hydropower, nuclear power constitutes the three pillars of world energy and occupies an important position in the world's energy structure. From the perspective of development, my country's energy growth needs mainly rely on the development of nuclear energy. Compared with thermal power, nuclear power does not emit air pollutants such as soot, sulfur dioxide, nitrogen oxides and carbon dioxide. The use of nuclear energy is an important symbol of national defense strength and national economic level, and shows the comprehensive strength of a country. The reactor is the core part of the nuclear energy system. Nuclear fission (or fusion) produces various radiation rays, such as neutrons of different energy levels, gamma rays, secondary gamma rays, other charged particles and high-energy rays. In or...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C11/00C22C11/02C22C11/06C22C1/02C22F1/12
CPCC22C11/00C22C1/02C22C11/02C22C11/06C22F1/12
Inventor 杨长江
Owner GUANGZHOU YUZHI TECH CO LTD
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