CN105541521A - Novel low-detonation-velocity explosive applicable to stainless steel composite and preparation method thereof - Google Patents
Novel low-detonation-velocity explosive applicable to stainless steel composite and preparation method thereof Download PDFInfo
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- CN105541521A CN105541521A CN201510919687.3A CN201510919687A CN105541521A CN 105541521 A CN105541521 A CN 105541521A CN 201510919687 A CN201510919687 A CN 201510919687A CN 105541521 A CN105541521 A CN 105541521A
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- explosive
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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 applicable to stainless steel composite and a preparation method thereof; the preparation method comprises the steps: taking 60 parts by weight of a rock powdery emulsion explosive with the bulk density of 0.58 g*cm<-3>-0.62 g*cm<-3>, the detonation velocity of 3500 m/s-3700 m/s, the brisance of 15 mm-17 mm, the sympathatic detonation distance of 9 cm-11cm and the capacity for work of 360/ml, taking 36 parts by weight of sand with the bulk density of 1.40/g*cm<-3> and the particle size of 300 mesh, putting the two raw materials into a drug mixing machine, stirring for 3-5 minutes, then taking 17 parts by weight of chaff with the bulk density of 0.50/g*cm<-3> and the particle size of 300 mesh, putting the chaff into the drug mixing machine, stirring for 20 minutes, fully stirring evenly, and then detecting the density and the detonation velocity of the product. The sand is used for reducing the detonation velocity, and the chaff is used as a density regulator for regulating the density of the mixed explosive; the effective density of the rock powdery emulsion explosive is reduced by the combined action of the sand and the chaff; the novel low-detonation-velocity explosive obtained by mixed loading of the raw materials in proportion can increase the production efficiency and solves problems of unfit large-area stainless steel-steel composite plates.
Description
Technical field
The invention belongs to steel field of compounding, specifically a kind of novel low explosive being applicable to stainless steel compound and preparation method thereof.
Background technology
Stainless steel not only has good corrosion resistance nature, and has the multifrequency natures such as good outward appearance, because stainless steel plate has following characteristics: surface aesthetic and the variation of use possibility; Corrosion resistance and good, more permanent than ordinary steel durable; Good corrosion resistance; Intensity is high, and thus the possibility of thin plate use is large; High temperature oxidation resisting and intensity high, therefore, it is possible to fire-resistance calamity; Normal temperature is processed, i.e. easily plastic working; Because need not surface treatment, thus easy, safeguard simple; Clean, highly polished; Good welding performance, so be widely used at stone automobile industry, tableware, galley equipment, electrical appliance, material of construction, chemical industry equipment etc.
Stainless steel---steel composite board is as novel Industrial products, material and thickness can independent assortments, to meet the demand of different user, stainless steel---steel composite board not only has stainless erosion resistance, has again the good physical strength of carbon steel and processing characteristics.Stainless steel clad plate, as a kind of product of resource-conserving, reduces the consumption of noble metal, significantly reduces construction costs.Realize low cost and high performance perfect adaptation, have good social benefit, and be widely used in the industries such as oil, chemical industry, salt industry, hydraulic and electric engineering.
As can be seen from stainless application above, stainless steel has become a kind of metal that can not lack in our life, but the stainless cost of simple use is comparatively large, and easily causes the waste in resource.Therefore, industrial use stainless steel mainly still uses stainless steel---and steel composite board is to make 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.To stainless steel,---requirement of steel composite board is also more and more stricter, and plate width is also increasing, about stainless steel---steel is also occurred by the problem such as not fit after explosive welding and bonding strength is lower 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
3explosive.Low-density explosive feature is that density is low, so explosion velocity, detonation pressure, power are lower.
Due to above various reasons, develop and a kind ofly novel be applicable to stainless steel---the low-density explosive of low blasting speed of steel compound, to enhancing productivity, solving big area stainless steel---the problem that steel composite board is not fitted plays significance.
Summary of the invention
The present invention seeks to for current defect, a kind of novel low explosive being applicable to stainless steel compound and preparation method thereof is provided, realize the requirement of production domesticization, meet the needs of the industry developments such as China's chemical industry.
The technical solution used in the present invention is as follows:
Be applicable to a novel low explosive for stainless steel compound, be made up of following raw material: rock powdery emulsion explosive 60 weight part, chaff 17 weight part, husky 36 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 60:36 with husky weight ratio, and stir, churning time is 3 ~ 5 minutes simultaneously;
(3) add chaff, the weight ratio of rock powdery emulsion explosive, sand and chaff three is 60:36:17, and then stir, churning time is 20 minutes;
(4) detect density and the explosion velocity of product in mixing machine, density is 0.80g/cm
3, explosion velocity be product between 2100m/s ~ 2300m/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 stainless steel just---steel compound is badly in need of.
This novel low density low explosive meets NB/47002.1-2009 " pressurized vessel Explosive Welding Composite Plates " standard first part for large-area stainless steel plate and steel Explosion composite laminating rate and shearing resistance: the requirement of stainless steel---steel composite board, 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 stainless steel---steel Explosion composite is badly in need of, NB/47002.1-2009 " pressurized vessel Explosive Welding Composite Plates " standard first part: the requirement of stainless steel---steel composite board, by the stainless steel that Explosion composite obtains---steel composite board, minimum shearing resistance τ
b>=210Mpa, except detonator shadow zone, laminating rate reaches 100%, and by dodging fire point nonuseable part in composition board, eliminates the disadvantageous effect in detonator shadow zone.
Embodiment
Embodiment
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 60kg of 360/ml, and getting tap density is 1.40/gcm
-3, particle diameter is the husky 36kg 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 17kg put into mixing machine, stirs 20 minutes, and after stirring, the density of testing product and explosion velocity, density is 0.80g/cm
3, explosion velocity be product between 2100m/s ~ 2300m/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 stainless steel compound, it is characterized in that, be made up of following raw material: rock powdery emulsion explosive 60 weight part, chaff 17 weight part, husky 36 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 60:36 with husky weight ratio, and stir, churning time is 3 ~ 5 minutes simultaneously;
(3) add chaff, the weight ratio of rock powdery emulsion explosive, sand and chaff three is 60:36:17, and then stir, churning time is 20 minutes;
(4) detect density and the explosion velocity of product in mixing machine, density is 0.80g/cm
3, explosion velocity be product between 2100m/s ~ 2300m/s is qualified product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510919687.3A CN105541521A (en) | 2015-12-08 | 2015-12-08 | Novel low-detonation-velocity explosive applicable to stainless steel composite and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510919687.3A CN105541521A (en) | 2015-12-08 | 2015-12-08 | Novel low-detonation-velocity explosive applicable to stainless steel composite and preparation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN105541521A true CN105541521A (en) | 2016-05-04 |
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|---|---|---|---|
| CN201510919687.3A Pending CN105541521A (en) | 2015-12-08 | 2015-12-08 | Novel low-detonation-velocity explosive applicable to stainless steel composite 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 CN201510919687.3A patent/CN105541521A/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: 20160504 |