Inflammable sparking alloy and preparation method thereof

Abstract

The invention discloses an inflammable sparking alloy and a preparation method thereof. The inflammable sparking alloy contains 20 to 25 percent of lanthanum, 15 to 20 percent of cerium, 5 to 15 percent of tin, 35 to 45 percent of zinc, 1 to 5 percent of magnesium and 5 to 10 percent of iron. The preparation method sequentially comprises the following steps of: (1) weighing magnesium, cerium, tin, zinc, iron and magnesium serving as raw materials according to the mass percentage of each component in the inflammable sparking alloy, and cutting each component into small blocks; (2) putting the components into a smelting furnace together, and performing high-temperature smelting in a state of isolated oxygen; and (3) performing electromagnetic stirring and uniform mixing after the components are smelted, discharging, cooling ingots in the state of isolated oxygen, and thus obtaining the finished inflammable sparking alloy product. The inflammable sparking alloy product is stable in performance, low in ignition point and strong in abrasion resistance.

Description

technical field [0001] The invention belongs to the field of alloy preparation, and in particular relates to a flammable and pyrotechnic alloy which 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 tor...

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, copper, 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