CN103615929A - Composite gun barrel material for small-caliber antiaircraft gun or close-in gun and manufacturing method thereof - Google Patents
Composite gun barrel material for small-caliber antiaircraft gun or close-in gun and manufacturing method thereof Download PDFInfo
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- CN103615929A CN103615929A CN201310424565.8A CN201310424565A CN103615929A CN 103615929 A CN103615929 A CN 103615929A CN 201310424565 A CN201310424565 A CN 201310424565A CN 103615929 A CN103615929 A CN 103615929A
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Abstract
The invention discloses a composite gun barrel material for a small-caliber antiaircraft gun or close-in gun and a manufacturing method thereof. A composite gun barrel is composed of two 5Cr3MoNiNb steel pipes and a Ta-Hf tantalum-hafnium alloy pipe, and solid phase combination between metal atoms is achieved after explosion composition. The composite gun barrel material is high in capacity resistant to high temperature ablation, high in combination strength and long in service life, thereby being a novel, advanced and modern gun barrel composite material for a small-caliber high-velocity gun barrel.
Description
Technical field
The present invention relates to a kind of compound gun tube material for small-caliber anti aircraft gun or nearly anti-big gun and preparation method thereof, belong to field of compound material.
Background technology
Small-caliber anti aircraft gun firing rate is fast, and low latitude is shot without dead angle, and shooting cost is low, is the important supplement of ground-to-air missile, especially the main power of position low-level defence.In order to improve weapon effectiveness, an important research direction of modern small-caliber anti aircraft gun is developing faster velocity of shot and Firing Velocity, higher gun muzzle energy.
In addition, in large ship, nearly anti-big gun is that the useful of air defence missile supplemented, when attacking enemy missile or aircraft while entering 10 kilometers of near defence areas, nearly anti-big gun starts, and transmitting reaches the shell of several thousand pieces in one minute, on naval vessel, be woven into a barrage around, to attacking target, implement effectively interception.Along with the develop rapidly of modern supersonic anti-warship guided missle, defence side requires also more and more higher to nearly anti-big gun emission rate at present.
The common feature of small-caliber anti aircraft gun or nearly anti-big gun is that firing rate, velocity of shot are very fast, and with this understanding, gun tube will bear higher flame temperature, and the erosion and wear of internal gun barrel also will be more serious, thereby decline rapidly service life.The method of at present conventional prevention barrel erosion is at the internal electroplated one deck of cannon pipe chromium of resistance to ablate metals, but the bond strength of electrodeposited chromium layers and cannon pipe is not high, after repeatedly shooting, chrome plating is easy to crack or depart from, therefore, current small-caliber anti aircraft gun or nearly anti-big gun are badly in need of the gun tube material of a kind of energy high-temperature corrosion resistance, long service life.
Summary of the invention
Goal of the invention: for the deficiency existing in the resistance to ablation technology of existing bore, the object of the invention is to invent a kind of for small-caliber anti aircraft gun or nearly anti-big gun, high strength, high temperature resistant ablation, anti abrasive compound gun tube material, to adapt to firing rate, initial velocity and the more and more higher requirement of bore temperature of small-caliber anti aircraft gun.
Technical scheme:
The compound gun tube of this bimetallic is comprised of double layer of metal material: gun tube base material and clad.Gun tube base material selects 25Cr3Mo3NiNb to forge steel pipe, and clad is selected the TA-HF tantalum hafnium alloy of high temperature resistant ablation.
Wherein 25Cr3Mo3NiNb is conventional gun tube material, the mass fraction of its essential element (%): carbon (0.3), chromium (3.0), molybdenum (3.0), copper (0.2), nitrogen (0.01) silicon (0.1), manganese (0.2); The mass fraction of the essential element of Ta-Hf alloy (%): tantalum (88), hafnium (4), tungsten (8).Ta-Hf alloy has high strength and oxidation resistance 1095 above at 1093 ℃, is good high temperature resistant ablate metals material.This Ta-Hf alloy ultimate tensile strength is at room temperature 1030MPa, and yield strength is 980MPa, and percentage elongation is 15%; In the time of 1482 ℃, its every analog value is: 245MPa, 210MPa and 67%.
Preparation method comprises:
(1): with special hand-held polishing tool machine by the surfaces externally and internally polishing grinding of steel pipe and tantalum hafnium alloy pipe to surface roughness Ra < 6nm.
(2) as shown in Figure 1, steel pipe and tantalum hafnium alloy pipe are assembled together and put into mould, keep appropriate gap between two-tube, in tantalum hafnium alloy pipe, pack appropriate explosive into, topmost, insert detonator, and light detonator, and ignition charge, tantalum hafnium alloy pipe is under the promotion of explosive detonation ripple, there is successively plastic deformation, with steel pipe generation sharp impacts, thereby be combined with each other, form the double metallic composite material pipe of a solid phase metallurgical binding.
(3)) take out compound good composite bimetal pipe, the stress that detonation wave stays metal material impact when eliminating explosive welding, puts into heat-treatment furnace by this bimetal tube, anneals.
(4) this multiple tube is orthopedic, and scribe rifling in tantalum hafnium alloy pipe, can make compound gun tube material.
Beneficial effect: compared with prior art, the compound gun tube material for small-caliber anti aircraft gun or nearly anti-big gun of the present invention, is a kind of novel composite material.Its combination interface tissue tight, is 100% in conjunction with rate, and bond strength higher than electroplating resistance to ablation layer and physical vapor precipitation metal level, has extraordinary application prospect far away.
Accompanying drawing explanation
Fig. 1 is the compound gun tube explosion cladding process of bimetallic schematic diagram;
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is further illustrated.
Embodiment 1
The compound gun tube of this bimetallic is comprised of double layer of metal material: gun tube base material and clad.Gun tube base material selects 25Cr3Mo3NiNb to forge steel pipe, and clad is selected the TA-HF tantalum hafnium alloy of high temperature resistant ablation.
Wherein 25Cr3Mo3NiNb25Cr3Mo3NiNb is conventional gun tube material, the mass fraction of its essential element (%): carbon (0.3), chromium (3.0), molybdenum (3.0), copper (0.2), nitrogen (0.01) silicon (0.1), manganese (0.2); The mass fraction of the essential element of Ta-Hf alloy (%): tantalum (88), hafnium (4), tungsten (8).Ta-Hf alloy has high strength and oxidation resistance 1095 above at 1093 ℃, is good high temperature resistant ablate metals material.This Ta-Hf alloy ultimate tensile strength is at room temperature 1030MPa, and yield strength is 980MPa, and percentage elongation is 15%; In the time of 1482 ℃, its every analog value is: 245MPa, 210MPa and 67%.
This tests 25Cr3Mo3NiNb thickness of steel pipe used is 7mm, and internal diameter is 32mm; Ta-Hf compo pipe wall thickness 0.5mm, internal diameter is 30mm.
Preparation method comprises:
(1): with special hand-held polishing tool machine by the surfaces externally and internally polishing grinding of steel pipe and tantalum hafnium alloy pipe to surface roughness Ra < 6nm.
(2) as shown in Figure 1, steel pipe and tantalum hafnium alloy pipe are assembled together and put into mould, keep appropriate gap between two-tube, in tantalum hafnium alloy pipe, pack appropriate explosive into, topmost, insert detonator, and light detonator, and ignition charge, tantalum hafnium alloy pipe is under the promotion of explosive detonation ripple, there is successively plastic deformation, with steel pipe generation sharp impacts, thereby be combined with each other, form the double metallic composite material pipe of a solid phase metallurgical binding.
(3)) take out compound good composite bimetal pipe, the stress that detonation wave stays metal material impact when eliminating explosive welding, puts into heat-treatment furnace by this bimetal tube, anneals.
(4) this multiple tube is orthopedic, and scribe rifling in tantalum hafnium alloy pipe, can make compound gun tube material.
Through check, between two kinds of metal materials of the compound gun tube material of this bimetallic, in conjunction with tight, recombination rate reaches 100%, and bond strength reaches 580MPa, is a kind of extraordinary novel gun tube material.
Claims (2)
1. compound gun tube material for small-caliber anti aircraft gun or nearly anti-big gun and preparation method thereof, is characterized in that this compound gun tube is comprised of 25Cr3MoNiNb steel and Ta-Hf tantalum hafnium alloy.
2. a kind of compound gun tube material for small-caliber anti aircraft gun or nearly anti-big gun according to claim 1 and preparation method thereof, is characterized in that this preparation method comprises following content:
(1): with special hand-held polishing tool by the surfaces externally and internally polishing grinding of 25Cr3MoNiNb steel pipe and Ta-Hf tantalum hafnium alloy pipe to surface roughness Ra < 6nm.
(2) as shown in Figure 1, first, cast concrete mould (1) outside 25Cr3MoNiNb steel pipe (2), its effect is the destruction that protection 25Cr3MoNiNb steel pipe (2) is not subject to explosion wave; Until concrete mold (1), solidify after sizing, 25Cr3MoNiNb steel pipe (2) and Ta-Hf tantalum hafnium alloy pipe (3) are assembled together, keep appropriate gap between two-tube; In Ta-Hf tantalum hafnium alloy pipe (3), pack appropriate explosive (4) into, topmost, insert detonator (5), light detonator (5), ignition charge (4), under the promotion of the detonation wave of explosive (4), there is plastic deformation in Ta-Hf tantalum hafnium alloy pipe (3), with steel pipe (2), sharp impacts occurs successively, thereby be combined with each other, form the composite bimetal pipe of a solid phase metallurgical binding.
(3) take out compound good composite bimetal pipe, detonation wave impacts the stress staying to metallic plate when eliminating explosive welding, and this bimetal tube is put into heat-treatment furnace, anneals.
(4) this multiple tube rolling is orthopedic, and scribe rifling in Ta-Hf tantalum hafnium alloy pipe (3) inside, make compound gun tube material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310424565.8A CN103615929A (en) | 2013-09-18 | 2013-09-18 | Composite gun barrel material for small-caliber antiaircraft gun or close-in gun and manufacturing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310424565.8A CN103615929A (en) | 2013-09-18 | 2013-09-18 | Composite gun barrel material for small-caliber antiaircraft gun or close-in gun and manufacturing method thereof |
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| CN103615929A true CN103615929A (en) | 2014-03-05 |
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| CN201310424565.8A Pending CN103615929A (en) | 2013-09-18 | 2013-09-18 | Composite gun barrel material for small-caliber antiaircraft gun or close-in gun and manufacturing method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107726937A (en) * | 2017-11-06 | 2018-02-23 | 宿州云宏建设安装有限公司 | A kind of low latitude blasting explosive bag catapult-launching gear |
| CN108180781A (en) * | 2017-12-26 | 2018-06-19 | 云南靖创液态金属热控技术研发有限公司 | A kind of cooling device and its Tank Gun Barrel of the Tank Gun Barrel based on phase-change material |
| CN108356404A (en) * | 2018-04-11 | 2018-08-03 | 中煤科工集团淮北爆破技术研究院有限公司 | A kind of steel-stainless steel mining gas discharging pipe explosion welding apparatus and welding method |
| CN110666332A (en) * | 2019-10-18 | 2020-01-10 | 中国人民解放军陆军工程大学 | Double-vertical explosive welding comprehensive protection device |
| CN114799777A (en) * | 2022-06-30 | 2022-07-29 | 成都航天万欣科技有限公司 | Method for processing special-shaped long strip-shaped curved surface part |
-
2013
- 2013-09-18 CN CN201310424565.8A patent/CN103615929A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107726937A (en) * | 2017-11-06 | 2018-02-23 | 宿州云宏建设安装有限公司 | A kind of low latitude blasting explosive bag catapult-launching gear |
| CN107726937B (en) * | 2017-11-06 | 2019-05-31 | 宿州市徽腾知识产权咨询有限公司 | A kind of low latitude blasting explosive packet catapult-launching gear |
| CN108180781A (en) * | 2017-12-26 | 2018-06-19 | 云南靖创液态金属热控技术研发有限公司 | A kind of cooling device and its Tank Gun Barrel of the Tank Gun Barrel based on phase-change material |
| CN108356404A (en) * | 2018-04-11 | 2018-08-03 | 中煤科工集团淮北爆破技术研究院有限公司 | A kind of steel-stainless steel mining gas discharging pipe explosion welding apparatus and welding method |
| CN108356404B (en) * | 2018-04-11 | 2024-05-14 | 中煤科工集团淮北爆破技术研究院有限公司 | Explosion welding device and welding method for steel-stainless steel mining gas drainage pipe |
| CN110666332A (en) * | 2019-10-18 | 2020-01-10 | 中国人民解放军陆军工程大学 | Double-vertical explosive welding comprehensive protection device |
| CN114799777A (en) * | 2022-06-30 | 2022-07-29 | 成都航天万欣科技有限公司 | Method for processing special-shaped long strip-shaped curved surface part |
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Application publication date: 20140305 |