CN105384588A - Novel low-detonation velocity explosive suitable for titanium material compounding, and preparation method thereof - Google Patents
Novel low-detonation velocity explosive suitable for titanium material compounding, and preparation method thereof Download PDFInfo
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- CN105384588A CN105384588A CN201510919584.7A CN201510919584A CN105384588A CN 105384588 A CN105384588 A CN 105384588A CN 201510919584 A CN201510919584 A CN 201510919584A CN 105384588 A CN105384588 A CN 105384588A
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- detonation velocity
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- powdery emulsion
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- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B23/00—Compositions characterised by non-explosive or non-thermic constituents
- C06B23/002—Sensitisers or density reducing agents, foam stabilisers, crystal habit modifiers
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- Organic Chemistry (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
The invention discloses a novel low-detonation velocity explosive suitable for titanium material compounding, and a preparation method thereof. The method comprises the following steps: taking 40 parts by weight of a rock powdery emulsion explosive with the bulk density of 0.58-0.62g.cm<-3>, the detonation velocity of 3500-3700m/s, the brisance of 15-17mm, the gap distance of 9-11cm and the work capacity of 360/ml, taking 45 parts of sands with the bulk density of 1.40g.cm<-3> and the particle size of 300 meshes, putting above taken materials in a medicine mixer, stirring the materials for 3-5min, taking 7 parts of bran with the bulk density of 0.50g.cm<-3> and the particle size of 300 meshes, putting the taken bran in the medicine mixer, stirring the obtained mixture for 20min until fullness and uniformity, and detecting the density and the detonation velocity of the above obtained product. The sands are used to reduce the detonation velocity, and the bran is used as a density adjusting agent to adjust the density of the obtained mixed explosive; and the effective density of the rock powdery emulsion explosive is reduced through synergism of the sands and the bran, and the novel low-detonation velocity explosive prepared through mixing above materials in proportion can improve the production efficiency, and solves the problem of lack-of-fit of large-area titanium-steel composite plates.
Description
Technical field
The invention belongs to titanium material field of compounding, be specifically a kind ofly applicable to novel low explosive of titanium material compound and preparation method thereof.
Background technology
The intensity of titanium is large, and pure titanium tensile strength reaches as high as 180kg/mm
2.The intensity of some steel is higher than titanium alloy, but the specific tenacity of titanium alloy (ratio of tensile strength and density) exceedes high-quality steel.The high-temperature capability that titanium alloy has had, low-temperature flexibility and fracture toughness property, therefore multiplexly make aircarft engine parts and rocket, guided missile structure part.Titanium alloy also can make storage tank and the high pressure vessel of fuel and oxygenant.Existing titanium alloy manufactures automatic rifle, the transmitting tube of mortar seat board and recoilless gun.Petroleum industry mainly makes various container, reactor, heat exchanger, distillation tower, pipeline, pump and valve etc.Titanium can be used as condenser and the environment pollution control device in electrode and power house.Ti-Ni marmem is widespread use on instrument.In medical treatment, titanium can make artificial bone and various utensil.The constituent element of the reductor that titanium is still made steel and stainless steel and steel alloy.Titanium dioxide is the very good material of pigment and paint.Titanium carbide, titanium hydride is novel hard alloy material.Titanium nitride color is bordering on gold, is widely used in decoration.
The alloy of titanium and titanium, in a large number for aircraft industry, has the title of " spatial metal "; In addition, in shipbuilding industry, chemical industry, manufacturing machine parts, telecommunication apparatus, Wimet etc., increasingly extensive application is had.
As can be seen from the application of titanium above, titanium has become a kind of metal that can not lack in our life, but the cost of alloy of the pure titanium of simple use and titanium is comparatively large, and easily causes the waste in resource.Therefore, industrial use titanium material mainly or use titanium/steel composite board makes up Costco Wholesale this problem higher.And along with domestic chemical industrial expansion, device fabrication is required also increasing for single plate area, and this brings very large difficulty to Explosion composite.Also more and more stricter to the requirement of titanium/steel composite board, plate width is also increasing, is also occurred by the problem such as not fit after explosive welding and bonding strength is lower about titanium/steel thereupon.
From the interface ripple parameter of the test specimen of some Welding experiment, the section of detonating (0 ~ 30mm) wavelength, wave amplitude are less, and cloth medicine to stablize permanent section of ripple larger, and often there is smelting zone at this region interface, the bonding strength of EXPLOSIVE WELDING INTERFACE is had a great impact, therefore, select low density permanent section of research, low explosive is very necessary.Low density explosive mainly refers to that density is less than 1.00g/cm
2explosive.Low-density explosive feature is that density is low, so explosion velocity, detonation pressure, power are lower.
Summary of the invention
The present invention seeks to for current defect, provide a kind of and be applicable to novel low explosive of titanium material compound and preparation method thereof, enhance productivity, solve big area titanium---the problem that steel composite board is not fitted.
The technical solution used in the present invention is as follows:
Be applicable to a novel low explosive for titanium material compound, be made up of following raw material: rock powdery emulsion explosive 40 weight part, chaff 7 weight part, husky 45 weight parts; The tap density of rock powdery emulsion explosive is 0.58gcm
-3~ 0.62gcm
-3, explosion velocity is 3500m/s ~ 3700m/s, and brisance is 15mm ~ 17mm, and gap distance is 9cm ~ 11cm, and capacity for work is 360/ml, and the shelf lives is 6 months; Husky tap density is 1.40/gcm
-3, particle diameter is 300 orders; The tap density of chaff is 0.50/gcm
-3, particle diameter is 300 orders.
The preparation method of novel low explosive, comprises the following steps:
(1) detect rock powdery emulsion explosive density, brisance and explosion velocity and whether meet the explosive parameters that dispatches from the factory;
(2) in mixing machine, add rock powdery emulsion explosive with husky, rock powdery emulsion explosive is 40:45 with husky weight ratio, and stir, churning time is 3-5 minute simultaneously;
(3) add chaff, the weight ratio of rock powdery emulsion explosive, sand and chaff three is 40:45:7, and then stir, churning time is 20 minutes;
(4) detect density and the explosion velocity of product in mixing machine, density is 0.90g/cm
3, explosion velocity be product between 1900m/s ~ 2000m/s is qualified product.
Though only account for minimum composition because husky and chaff do not participate in reacting or participate in react the heat effect still produced completely in explosive, and husky mix with chaff after, its heap natural product density is less, like this, in explosive, just define evenly tiny space and the density of explosive is minimized, thus obtaining a kind of explosive of novel low density low blasting speed.And this density is low, explosion velocity low explosive big area titanium just---steel compound is badly in need of.
This novel low density low explosive meets the requirement of ASTMB-898 " active with composite metal plate hard to tolerate " standard for large-area titanium plate and steel Explosion composite laminating rate and shearing resistance, meets the needs of the industry developments such as domestic chemical industry.
Beneficial effect of the present invention: the present invention's sand and chaff do not participate in explosive reaction, adding husky object is reduce explosion velocity, and chaff, as a kind of density adjuster, regulates the density of mixed medicine; Reducing emulsion explosive effective density is acting in conjunction that is husky and chaff, with aforementioned proportion load in mixture obtain this novel low density, low blasting speed explosive, big area titanium---steel Explosion composite is badly in need of, meet the requirement of ASTMB-898 " active and composite metal plate hard to tolerate " standard, by the titanium that Explosion composite obtains---steel composite board, minimum shearing resistance τ
b>=140Mpa, except detonator shadow zone, laminating rate reaches 100%, and eliminates detonator shadow zone by an Explosion composite fire point, or dodges fire point nonuseable part in composition board, eliminates the disadvantageous effect in detonator shadow zone.
Embodiment
Embodiment 1
Getting tap density is 0.58gcm
-3~ 0.62gcm
-3, explosion velocity is 3500m/s ~ 3700m/s, and brisance is 15mm ~ 17mm, and gap distance is 9cm ~ 11cm, and gap distance is 9cm ~ 11cm, and capacity for work is the rock powdery emulsion explosive 40kg of 360/ml, and getting tap density is 1.40/gcm
-3, particle diameter is the husky 45kg of 300 objects, and put into mixing machine and stir 4 minutes, then getting tap density is 0.50/gcm
-3, particle diameter is that 300 object chaff 7kg put into mixing machine, stirs 20 minutes, and after stirring, the density of testing product and explosion velocity, density is 0.90g/cm
3, explosion velocity be product between 1900m/s ~ 2000m/s is qualified product.
Above content is only citing made for the present invention and explanation; affiliated those skilled in the art make various amendment to described specific embodiment or supplement or adopt similar mode to substitute; only otherwise depart from the design of invention or surmount this scope as defined in the claims, protection scope of the present invention all should be belonged to.
Claims (2)
1. be applicable to a novel low explosive for titanium material compound, it is characterized in that, be made up of following raw material: rock powdery emulsion explosive 40 weight part, chaff 7 weight part, husky 45 weight parts; The tap density of rock powdery emulsion explosive is 0.58gcm
-3~ 0.62gcm
-3, explosion velocity is 3500m/s ~ 3700m/s, and brisance is 15mm ~ 17mm, and gap distance is 9cm ~ 11cm, and capacity for work is 360/ml, and the shelf lives is 6 months; Husky tap density is 1.40/gcm
-3, particle diameter is 300 orders; The tap density of chaff is 0.50/gcm
-3, particle diameter is 300 orders.
2. the preparation method of novel low explosive according to claim 1, is characterized in that, comprise the following steps:
(1) detect rock powdery emulsion explosive density, brisance and explosion velocity and whether meet the explosive parameters that dispatches from the factory;
(2) in mixing machine, add rock powdery emulsion explosive with husky, rock powdery emulsion explosive is 40:45 with husky weight ratio, and stir, churning time is 3-5 minute simultaneously;
(3) add chaff, the weight ratio of rock powdery emulsion explosive, sand and chaff three is 40:45:7, and then stir, churning time is 20 minutes;
(4) detect density and the explosion velocity of product in mixing machine, density is 0.90g/cm
3, explosion velocity be product between 1900m/s ~ 2000m/s is qualified product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510919584.7A CN105384588A (en) | 2015-12-08 | 2015-12-08 | Novel low-detonation velocity explosive suitable for titanium material compounding, and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510919584.7A CN105384588A (en) | 2015-12-08 | 2015-12-08 | Novel low-detonation velocity explosive suitable for titanium material compounding, and preparation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN105384588A true CN105384588A (en) | 2016-03-09 |
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|---|---|---|---|
| CN201510919584.7A Pending CN105384588A (en) | 2015-12-08 | 2015-12-08 | Novel low-detonation velocity explosive suitable for titanium material compounding, and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106518581A (en) * | 2016-11-25 | 2017-03-22 | 安徽宝泰特种材料有限公司 | Preparation method of low-detonation-velocity and low-density explosive applicable to nickel-steel compounding |
| CN106518580A (en) * | 2016-11-25 | 2017-03-22 | 安徽宝泰特种材料有限公司 | Preparation method of high detonation velocity and low density explosive for copper-steel compounding |
| CN115710148A (en) * | 2022-11-22 | 2023-02-24 | 黄山顺钛新材料科技有限公司 | Low-detonation-velocity explosive special for explosive welding |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101423448A (en) * | 2008-11-15 | 2009-05-06 | 安徽江南化工股份有限公司 | Low detonation velocity powdery emulsifying explosive |
| CN104072322A (en) * | 2014-06-27 | 2014-10-01 | 湖北金兰特种金属材料有限公司 | Special low-detonation velocity explosive for explosive welding |
-
2015
- 2015-12-08 CN CN201510919584.7A patent/CN105384588A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101423448A (en) * | 2008-11-15 | 2009-05-06 | 安徽江南化工股份有限公司 | Low detonation velocity powdery emulsifying explosive |
| CN104072322A (en) * | 2014-06-27 | 2014-10-01 | 湖北金兰特种金属材料有限公司 | Special low-detonation velocity explosive for explosive welding |
Non-Patent Citations (1)
| Title |
|---|
| 李长青: "《功能材料》", 30 June 2014, 哈尔滨：哈尔滨工业大学出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106518581A (en) * | 2016-11-25 | 2017-03-22 | 安徽宝泰特种材料有限公司 | Preparation method of low-detonation-velocity and low-density explosive applicable to nickel-steel compounding |
| CN106518580A (en) * | 2016-11-25 | 2017-03-22 | 安徽宝泰特种材料有限公司 | Preparation method of high detonation velocity and low density explosive for copper-steel compounding |
| CN115710148A (en) * | 2022-11-22 | 2023-02-24 | 黄山顺钛新材料科技有限公司 | Low-detonation-velocity explosive special for explosive welding |
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Application publication date: 20160309 |
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