A kind of drug type cover material with combustion function and its preparation method

A drug-type cover and functional technology, applied in the field of metal materials, can solve the problems of after-effects after damage and cannot meet the development needs of the new generation of equipment, and achieve the effects of high purity, stable performance, and high yield

Active Publication Date: 2020-05-08
NO 59 RES INST OF CHINA ORDNANCE IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Copper has a history of more than 50 years of development as the drug-type cover of the shaped charge warhead. 98% of the existing armor-piercing warheads use copper drug-type covers. Experimental studies have shown that the drug-shaped covers made of pure copper have low damage aftereffects , can no longer meet the development needs of the new generation of equipment

Method used

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  • A kind of drug type cover material with combustion function and its preparation method
  • A kind of drug type cover material with combustion function and its preparation method
  • A kind of drug type cover material with combustion function and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] (1) Powder preparation: Commercial electrolytic copper powder (800 mesh), atomized zirconium powder (400 mesh), and plasma spheroidized tantalum powder (1340 mesh) are used, and the powder purity reaches 99.9%.

[0034] (2) Powder mixing and compacting: According to a certain composition ratio (mass fraction, as shown in Table 1), the three powders are evenly mixed, and pressed to produce a billet with a specification of φ100×120mm.

[0035] Table 1 Copper alloy powder composition ratio (wt.%)

[0036] powder name copper powder Zirconium powder Tantalum powder Remark quality score 80％ 15％ 5％

[0037] (3) Pre-sintering: use a nitrogen atmosphere to protect the furnace, sinter at 550 ° C for 2 hours, and then cool to 80 ° C with the furnace to obtain a prefabricated billet with a certain strength.

[0038] (4) Solid-liquid composite sintering: carry out solid-liquid composite sintering on the prefabricated blank in step (3), high vacuum he...

Embodiment 2

[0046] (1) Powder preparation: Commercial electrolytic copper powder (900 mesh), atomized zirconium powder (500 mesh), and plasma spheroidized tantalum powder (1700 mesh) are used, and the powder purity reaches 99.9%.

[0047] (2) Powder mixing and compacting: According to a certain composition ratio (mass fraction, as shown in Table 3), the three powders are evenly mixed, and pressed to produce a billet with a specification of φ100×120mm.

[0048] Table 3 Copper alloy powder composition ratio (wt.%)

[0049]

[0050]

[0051] (3) Pre-sintering: use a nitrogen atmosphere to protect the furnace, sinter at 600 ° C for 2 hours, and then cool to 80 ° C with the furnace to obtain a prefabricated billet with a certain strength.

[0052] (4) Solid-liquid composite sintering: carry out solid-liquid composite sintering on the prefabricated billet in step (3), in a high-vacuum heat treatment furnace, when the temperature is below 1300°C, the vacuum degree reaches 0.5×10 -4 Pa; the ...

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Abstract

The invention provides a shaped charge cover material with a combustion function and a preparation method thereof. Raw materials include copper powder, zirconium powder and tantalum powder. Blank pressing and sintering of the powder are adopted, sintering is solid and liquid composited sintering, solid and liquid composited sintering is divided into two stages, specifically, at the first state, the sintering temperature is 800-1080 DEG C, the heat preservation time is 1-2 h, at the second stage, the sintering temperature is 1100-1150 DEG C, the heat preservation time is 0.5-1 h. Compared witha traditional shaped charge cover material, the prepared copper alloy material can penetrate through a thick target plate and can ignite substances such as diesel and grass behind a target can be ignited.

Description

technical field [0001] The invention relates to the technical field of metal materials, in particular to a drug-shaped cover material with a combustion function and a preparation method thereof. Background technique [0002] The warhead is the part where the ammunition damages the target and produces the predetermined terminal effect, and has always occupied an important position in the research field of weapon efficient damage technology. The traditional warhead has a single function, and it is difficult to meet the requirements for the diverse strikes of modern war targets. The multi-functional damage warhead can overcome the shortcomings of traditional warheads that only have special or single functions, and can achieve penetration, explosion, combustion and multiple modes Composite guidance to accurately strike targets is the current development focus and future development direction of warhead technology. [0003] In 2016, the U.S. Defense Threat Reduction Agency propo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F3/10B22F3/20B22F3/24B22F1/00C22C1/04C22C9/00
CPCB22F1/0003B22F3/1007B22F3/1035B22F3/20B22F3/24B22F2003/208B22F2003/248B22F2998/10C22C1/0425C22C9/00
Inventor 黄志伟舒大禹夏祥生赵强屈俊岑谢兰川张帷
Owner NO 59 RES INST OF CHINA ORDNANCE IND
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