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Palladium-ruthenium/aluminum-magnesium composite metal wire and preparation method thereof

A composite metal, palladium-ruthenium alloy technology, applied in the field of material processing and manufacturing, can solve the problems of long ignition delay time of the engine, and achieve the effects of shortening ignition delay time, high sensitivity, and good alloy reaction performance

Active Publication Date: 2011-06-15
NORTHWEST INSTITUTE FOR NON-FERROUS METAL RESEARCH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, in the key technology of the engine, the long ignition delay time of the engine is a key technical problem

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Preparation of Pd-Ru5 / Al-Mg5 composite wire with a diameter of 0.05mm:

[0024] (1) Melting palladium-ruthenium alloy in vacuum or protective atmosphere, then casting ingot to make tube blank; the mass percentage of ruthenium in the palladium-ruthenium alloy is 5%, and the balance is palladium;

[0025] (2) Melting the aluminum-magnesium alloy in a vacuum or a protective atmosphere, and then casting an ingot to make a bar; the aluminum-magnesium alloy is No. 5056 aluminum alloy;

[0026] (3) Carry out cold rolling of the tube billet, stop cold rolling when the deformation of the tube billet reaches 60%, anneal for 35 minutes under vacuum conditions at a temperature of 900°C to eliminate processing stress, vacuum water quench out of the furnace, and then carry out cold drawing , when the deformation of cold drawing reaches 35%, stop cold drawing, anneal for 35 minutes under vacuum conditions at a temperature of 900 ° C to eliminate processing stress, vacuum water quenchi...

Embodiment 2

[0033] Preparation of Pd-Ru5 / Al-Mg4.5 composite wire with a diameter of 0.05mm:

[0034] The preparation method of this example is the same as that of Example 1, except that the aluminum-magnesium alloy is 5A05 aluminum alloy.

[0035] After the palladium-ruthenium / aluminum-magnesium composite wire prepared in this example is energized, the inner core of the aluminum alloy quickly reaches the melting point (about 635° C.) under the action of a 5A current. Alloying reaction, the response time of alloying reaction is shorter than 200ms, and the heat released is not less than 1300J / g.

Embodiment 3

[0037] Preparation of Pd-Ru5 / Al-Mg4 composite wire with a diameter of 0.05mm:

[0038] The preparation method of this example is the same as that of Example 1, except that the aluminum-magnesium alloy is an aluminum alloy comprising magnesium, silicon, iron, copper and zinc, wherein the mass percentage of magnesium is 4%, and the mass percentage of silicon 0.5%, the mass percentage of iron is 0.5%, the mass percentage of copper is 0.1%, the mass percentage of zinc is 0.2%, and the balance is aluminum.

[0039]After the palladium-ruthenium / aluminum-magnesium composite wire prepared in this example is energized, the inner core of the aluminum alloy quickly reaches the melting point (about 635° C.) under the action of a 5A current. Alloying reaction, the response time of alloying reaction is shorter than 200ms, and the heat released is not less than 1300J / g.

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Abstract

The invention provides a palladium-ruthenium / aluminum-magnesium composite metal wire and a preparation method thereof. The composite metal wire takes a palladium-ruthenium alloy as a clad material and takes an aluminum-magnesium alloy as an inner core material. A preparation process comprises the following steps of: I, smelting the palladium-ruthenium alloy, and performing ingot casting to obtain a pipe blank; II, smelting the aluminum-magnesium alloy, and performing ingot casting to obtain a bar material; III, performing cold rolling and cold drawing on the pipe blank to obtain a palladium-ruthenium alloy pipe; IV, preparing aluminum-magnesium alloy filaments by cold drawing; V, continuously introducing the aluminum-magnesium alloy filaments into the palladium-ruthenium alloy pipe to obtain a blank piece; VI, swaging the blank piece to obtain a composite metal wire; and VII, performing cold drawing on the composite metal wire to obtain the palladium-ruthenium / aluminum-magnesium composite metal wire of a required size. The prepared palladium-ruthenium / aluminum-magnesium composite metal wire has high alloy reaction performance, and can be applied to a detonating cord of a detonator or an ignition device of an engine.

Description

technical field [0001] The invention belongs to the technical field of material processing and manufacturing, and in particular relates to a palladium-ruthenium / aluminum-magnesium composite wire and a preparation method thereof. Background technique [0002] The solid rocket motor is the main power device in the field of aerospace technology. However, due to the excessive impact brought by the solid rocket motor when it is ignited, the guidance and control devices will generate shock loads, which may also cause damage to the launcher components and transport vehicles, or damage the Injury to nearby persons. This requires the rocket engine ignition system to be safer and more reliable. [0003] At present, NiCr resistance wire or high explosive is mainly used as ignition agent in our country. This kind of wire needs ignition agent, and the voltage and current required are large, unsafe to use, poor in reliability, and prone to explosion accidents. The same high explosive als...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C06C5/00C06C5/08
Inventor 操齐高王廷询李银娥姜婷郑晶李进
Owner NORTHWEST INSTITUTE FOR NON-FERROUS METAL RESEARCH
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