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Performance-stable flint and preparation method thereof

A flint and stable technology, applied in the field of flint and its preparation, can solve the problems of unsustainable rare earth resource development mode, easy oxidation, high alloy cost, etc., and achieves low production cost, high product quality, and strong wear resistance. Effect

Inactive Publication Date: 2017-06-13
黄波
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Traditional rare earth flammable pyrophoric alloys are generally synthesized by rare earth or mixed rare earth, iron, magnesium, zinc, etc., because the content of rare earth elements in the alloy is often more than 70%, making the cost of the alloy very expensive; and rare earth elements are easy to oxidize. The greater the content in the alloy, the greater the impact on product quality due to oxidation. Reducing the content of rare earth elements in pyrophoric alloys can not only reduce costs, but also improve product quality; and rare earth resources are non-renewable resources. The reserves on the earth are limited, even if my country is a country with a large amount of rare earths, it cannot withstand the current development model of using a large amount of rare earth resources; therefore, it is inevitable to seek a new generation of flammable pyrophoric alloys with low rare earth content

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0027] The preparation method of the flint with stable performance of the present embodiment comprises the following steps successively:

[0028] (1) Weigh the raw materials lanthanum, neodymium, tin, magnesium, zinc, iron and copper according to the mass percentage of each component of the flint with stable performance in the flint with stable performance, and then cut each component into small pieces ; The raw materials lanthanum, neodymium, tin, magnesium, zinc, iron and copper are all used as simple materials for smelting.

[0029] (2) Put all the components into the smelting furnace together, and then smelt at high temperature under vacuum;

[0030] (3) After each component is melted, use electromagnetic stirring to mix evenly, take it out of the furnace, and carry out cooling and ingot casting in a vacuum state, and the finished flint with stable performance can be obtained.

Embodiment 2

[0032] A flint with stable performance, in terms of mass percentage, the flint with stable performance contains: 10% neodymium, 20% tin, 5% magnesium, 20% zinc, 10% iron, 5% Copper, the balance being lanthanum.

[0033] The preparation method of the flint with stable performance of the present embodiment comprises the following steps successively:

[0034] (1) Weigh the raw materials lanthanum, neodymium, tin, magnesium, zinc, iron and copper according to the mass percentage of each component of the flint with stable performance in the flint with stable performance, and then cut each component into small pieces ; The raw materials lanthanum, neodymium, tin, magnesium, zinc, iron and copper are all used as simple materials for smelting.

[0035] (2) Put all the components into the smelting furnace together, and then smelt at high temperature under the protection of inert gas;

[0036] (3) After the components are melted, use electromagnetic stirring to mix them evenly, take t...

Embodiment 3

[0038] A flint with stable performance, in terms of mass percentage, the flint with stable performance contains: 10% neodymium, 15% tin, 3% magnesium, 20% zinc, 7% iron, 2% Copper, the balance being lanthanum.

[0039] The preparation method of the flint with stable performance of the present embodiment comprises the following steps successively:

[0040] (1) Weigh the raw materials lanthanum, neodymium, tin, magnesium, zinc, iron and copper according to the mass percentage of each component of the flint with stable performance in the flint with stable performance, and then cut each component into small pieces ; The raw materials lanthanum, neodymium, tin, magnesium, zinc, iron and copper are all used as simple materials for smelting.

[0041] (2) Put all the components into the smelting furnace together, and then smelt at high temperature under the protection of inert gas;

[0042] (3) After the components are melted, use electromagnetic stirring to mix them evenly, take th...

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Abstract

The invention discloses a performance-stable flint and a preparation method thereof. The performance-stable flint comprises the following components in percentage by mass: 5-10% of neodymium, 10-20% of tin, 1-5% of magnesium, 10-20% of zinc, 5-10% of iron, 1-5% of copper, and the balance of lanthanum. The performance-stable flint is stable in product performances, low in fire point and high in wear resistance.

Description

technical field [0001] The invention belongs to the field of alloy preparation, and in particular relates to a flint with stable performance that can be used in industry and daily life and a preparation method thereof. Background technique [0002] Rare earth flammable pyrophoric alloys are widely used in industry and daily life due to their flammable properties. In daily life, rare earth flammable pyrophoric alloys are mainly used in flints and are an important source of ignition for lighters. In the national defense industry, the rare earth flammable pyrotechnic alloy is processed into different components, which are loaded into different weapons to obtain satisfactory military effects. For example, it is used in weapons for tracer bullets, lead cores for bullets and shells, ignition devices and other military facilities. In other industries, after the pyrophoric alloy is processed into components, it can be used for industrial gas lamps, mine safety lamps, welding torch ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C28/00C22C30/06C22C1/02
CPCC22C28/00C22C1/02C22C30/02C22C30/04C22C30/06
Inventor 黄波
Owner 黄波