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Corrosion-resisting Sc containing lead-lithium alloy with extremely low machining hardening rate

A work-hardening and corrosion-resistant 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 excellent filling performance, excellent flame retardancy, and overcome poor specific gravity Effect

Inactive Publication Date: 2018-06-26
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

[0017] A corrosion resistant Sc lead-lithium alloy with very low work hardening rate when smelted at 350°C. In terms of weight percentage, the chemical composition of the alloy is: Li: 0.9wt.%, Sc: 0.3wt.%, Ni: 0.2wt.%, Cu: 0.7wt.%, Ta: 0.5wt.%, Ge: 0.3wt .%, Eu: 0.2wt.%, 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 flat ingot, and the ingot moves down at a speed of 12m / min. The slab can be used as a rolling blank for pressure rolling in a subsequent process to prepare thinner lead-lithium alloy plates. The final heat treatment process o...

Embodiment 2

[0020] A corrosion resistant Sc lead lithium alloy with very low work hardening rate when smelted at 370°C. In terms of weight percentage, the chemical composition of the alloy is: Li: 1.2wt.%, Sc: 0.4wt.%, Ni: 0.3wt.%, Cu: 0.7wt.%, Ta: 0.5wt.%, Ge: 0.2wt .%, Eu: 0.3wt.%, 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 flat ingot, and the ingot moves down at a speed of 10m / min. The slab can be used as a rolling blank for pressure rolling in a subsequent process to prepare thinner lead-lithium alloy plates. The final heat treatment process o...

Embodiment 3

[0023] A corrosion resistant Sc lead-lithium alloy with extremely low work hardening rate when smelted at 390°C. In terms of weight percentage, the chemical composition of the alloy is: Li: 0.9wt.%, Sc: 0.4wt.%, Ni: 0.3wt.%, Cu: 0.6wt.%, Ta: 0.5wt.%, Ge: 0.2wt .%, Eu: 0.4wt.%, 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 flat ingot, and the ingot moves down at a speed of 12m / min. The slab can be used as a rolling blank for pressure rolling in a subsequent process to prepare thinner lead-lithium alloy plates. The final heat treatmen...

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PUM

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Abstract

The invention discloses a corrosion-resisting Sc containing lead-lithium alloy with an extremely low machining hardening rate and a machining technology of the corrosion-resisting Sc containing lead-lithium alloy. The corrosion-resisting Sc containing lead-lithium alloy comprises components including, by weight percent, 0.8 wt.%-1.5 wt.% of Li, 0.2 wt.%-0.5 wt.% of Sc, 0.2 wt.%-0.4 wt.% of Ni, 0.6wt.%-0.8 wt.% of Cu, 0.5 wt.%-0.6 wt.% of Ta, 0.2 wt.%-0.4 wt.% of Ge, 0.2 wt.%-0.4 wt.% of Eu and the balance lead. The lead-lithium alloy has the extremely low machining hardening rate and excellent corrosion-resisting performance. The performance exceeds a traditional shielding material lead alloy, and the corrosion-resisting Sc containing lead-lithium alloy is widely applied to the military and civil fields.

Description

technical field [0001] The invention relates to the technical field of alloys, in particular to a lead-lithium alloy. Background technique [0002] A nuclear reactor is a device that initiates, controls, and sustains a nuclear fission or fusion chain reaction. Compared with the uncontrolled chain reaction that occurs at the moment of nuclear explosion, in the reactor, the rate of nuclear transformation can be precisely controlled, and its energy can be released at a slower speed for people to use. Nuclear reactors have many uses, and the most important use at present is to generate heat, which can be used to replace other fuels to heat water, generate steam to generate electricity, or drive aircraft carriers and other facilities. Some reactors are used to produce isotopes for medical and industrial purposes, or to produce weapons-grade plutonium. Some reactors are run for research only. All current commercial nuclear reactors are based on nuclear fission. [0003] The ma...

Claims

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Application Information

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IPC IPC(8): C22C11/02C22C1/02C22F1/12C22F1/02
CPCC22C11/02C22C1/02C22F1/02C22F1/12
Inventor 杨长江
Owner GUANGZHOU YUZHI TECH CO LTD
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