CN106518581A - Preparation method of low-detonation-velocity and low-density explosive applicable to nickel-steel compounding - Google Patents
Preparation method of low-detonation-velocity and low-density explosive applicable to nickel-steel compounding Download PDFInfo
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- CN106518581A CN106518581A CN201611057451.4A CN201611057451A CN106518581A CN 106518581 A CN106518581 A CN 106518581A CN 201611057451 A CN201611057451 A CN 201611057451A CN 106518581 A CN106518581 A CN 106518581A
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- explosive
- nickel
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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 relates to a preparation method of a low-detonation-velocity and low-density explosive applicable to nickel-steel compounding. The preparation method comprises the following steps: detecting detonation parameters of an emulsified explosive; if the detonation parameters accord with pre-set parameters, carrying out the following steps: adding the emulsified explosive and pearlite into an explosive mixing machine at the same time and uniformly stirring, wherein the weight ratio of the emulsified explosive to the pearlite is 58 to 38; adding bran into the explosive mixing machine and sufficiently and uniformly mixing, wherein the weight ratio of the emulsified explosive to the pearlite to the bran is 58 to 38 to 15; detecting the density and detonation velocity of a product in the explosive mixing machine; and considering the product with the density of 0.84g/cm<3> and the detonation velocity of 2000m/s-2200m/s as a qualified product. A nickel-steel compound plate obtained by detonation compounding of the explosive has the minimum shearing strength tau b which is more than or equal to 210Mpa; except a detonator shadow region, the fitting rate reaches 100%; and adverse effects on the detonator shadow region are eliminated through avoiding a useless part of a detonating point in the compound plate.
Description
Technical field
The invention belongs to new energy development field, and in particular to a kind of to fry suitable for the low blasting speed low-density that nickel-steel is combined
The preparation method of medicine.
Background technology
Nickel and nickel alloy have excellent corrosion resistance and heat resistance, are widely used in severe corrosive atmosphere, manifest
Go out effective resistivity.In many cases, these corrosive conditions are for the material such as stainless steel or super stainless steel
It is overpowering.Nickel is a kind of Multifunctional corrosion resistant corrosion material in itself, high with intensity, plasticity, the good spy of ductility, malleability
Point.Nickel in most of composition ranges has metallurgical compatibility with other metallic elements, becomes many two as alloy element
Unit, ternary alloy three-partalloy and other complex alloys systems, nickel and nickel alloy are widely used in the industries such as chemical industry, alkaline, metallurgy, oil
Pressure vessel, heat exchanger, tower, evaporimeter, agitator, condenser, reactor and accumulating device etc..Nickel is in many organic acids
Also it is very stable, can be used for pharmacy and food industry.
Used as new industrial products, material and thickness can be with independent assortments, to meet different user for nickel-steel composite plate
Demand, nickel-steel composite plate not only have corrosion resistance and heat resistance, and with the good mechanical strength of carbon steel and processing characteristics.Nickel
Based alloy composite plate reduces the consumption of precious metal, construction costs is greatly lowered as a kind of product of resource-conserving.It is real
Existing inexpensive and high performance perfect adaptation, has good social benefit, and has been widely used for chemical industry, alkaline, metallurgy, stone
In the industries such as oil.
As can be seen that nickel-base alloy has become one kind gold that can not be lacked in industry from the application of nickel-base alloy above
Category, but the cost of simple use nickel and nickel-base alloy is larger, and easily cause the waste in resource.Therefore, industrially make
With nickel material material mainly or using nickel-steel composite plate making up higher this problem of Costco Wholesale.And with domestic chemical industry, stone
The development of the industries such as oil, needed for because of device fabrication, the requirement to nickel-steel composite plate is also increasingly stricter, and plate width is also increasing,
Do not fitted after explosive welding with regard to nickel-steel and also occurred therewith the problems such as bond strength is relatively low.
From the point of view of the interface ripple parameter of the test specimen of some explosive weldings experiment, detonation section (0～30mm) wavelength, wave amplitude compared with
It is little, and cloth medicine to stablize permanent section of ripple larger, and often there is melting zone in this region interface, to EXPLOSIVE WELDING INTERFACE
Bond strength has a great impact, therefore, it is very necessary from low-density, low explosive in permanent section of research.It is low close
Degree explosive is primarily referred to as density less than 1.00g/cm3Explosive.Low-density explosive feature is that density is low, thus explosion velocity, detonation pressure,
Power is relatively low.
Due to above various reasons, it is necessary to autonomous innovation, a kind of new low blasting speed being combined suitable for nickel-steel is developed
Low-density explosive, this to improve production efficiency, solve the problems, such as that large area nickel-steel composite plate is not fitted and play significance.
The content of the invention
It is an object of the invention to：A kind of preparation method of the low blasting speed low density explosive being combined suitable for nickel-steel is provided.
To achieve these goals, the present invention provides following technical scheme：
A kind of preparation method of the low blasting speed low density explosive being combined suitable for nickel-steel, comprises the following steps：
(1) detect whether the pure medicine density of emulsion, brisance and explosion velocity meet the emulsion and dispatch from the factory explosive parameters, meet
Then follow the steps below；
(2) emulsion and perlite are added simultaneously in the mixing machine, stir, wherein, emulsion and perlite
Weight ratio be 58:38；
(3) chaff is added into mixing machine, stir, wherein, emulsion, perlite, the weight ratio of chaff three
For 58:38:15；
(4) density and explosion velocity of product in mixing machine are detected, density is 0.84g/cm3, explosion velocity be 2000m/s～2200m/
Product between s is qualified products.
Preferably, in described step (2), mixing time is 4min-6min.
Preferably, in described step (3), mixing time is 18min-22min.
Preferably, the explosive parameters of described emulsion are as follows：Density 0.5g/cm3-0.75g/cm3, brisance >=13mm,
Explosion velocity ＞ 3400m/s.
Preferably, described perlite particle size is in 14 mesh between 18 mesh.
Further, the nickel-steel composite plate for obtaining, minimum shearing are combined with the explosive charge that the inventive method is prepared from
Intensity τ b >=210Mpa, in addition to detonator shadow region, laminating rate reaches 100%.
The beneficial effects of the present invention is：
As though perlite grain and chaff are not involved in reacting or participating in what reaction was still produced in explosive completely in the present invention
Fuel factor only accounts for minimum composition, and after perlite grain is mixed with chaff, its heap natural product density is less, so, in explosive just
Define uniform tiny space and be minimized the density of explosive, so as to obtain a kind of the fried of new low-density low blasting speed
Medicine.And this density is low, the low explosive of explosion velocity exactly large area nickel-steel is compound to be badly in need of.
This new low-density low explosive is for large-area nickel plate and steel Explosion composite laminating rate and shearing by force
Degree satisfaction meets NB/47002-2009《Pressure vessel Explosive Welding Composite Plates》Standard Part II：Nickel-steel composite plate will
Ask, meet the needs of the industry developments such as domestic chemical industry.
The nickel-steel composite plate for obtaining, minimum shear strength τ b >=210Mpa, except thunder are combined by the explosive charge of the present invention
Outside pipe shadow region, laminating rate reaches 100%, and can eliminate detonator shade by avoiding fire point nonuseable part in composite plate
The adverse effect in area.
Specific embodiment
Embodiment 1
A kind of preparation method of the low blasting speed low density explosive being combined suitable for nickel-steel, comprises the following steps：
(1) detect whether the pure medicine density of emulsion, brisance and explosion velocity meet the emulsion and dispatch from the factory explosive parameters, meet
Then follow the steps below；
(2) emulsion and perlite being added simultaneously in mixing machine, being stirred, mixing time is 4min, wherein, breast
It is 58 to change explosive with perlitic weight ratio:38；
(3) chaff being added into mixing machine, being stirred, mixing time is 18min, wherein, emulsion, pearl
Rock, the weight ratio of chaff three are 58:38:15；
(4) density and explosion velocity of product in mixing machine are detected, density is 0.84g/cm3, explosion velocity be 2000m/s～2200m/
Product between s is qualified products.
Wherein, the explosive parameters of described emulsion are as follows：Density 0.5g/cm3-0.75g/cm3, it is brisance >=13mm, quick-fried
Fast ＞ 3400m/s.Described perlite particle size is in 14 mesh between 18 mesh.
Embodiment 2
A kind of preparation method of the low blasting speed low density explosive being combined suitable for nickel-steel, comprises the following steps：
(1) detect whether the pure medicine density of emulsion, brisance and explosion velocity meet the emulsion and dispatch from the factory explosive parameters, meet
Then follow the steps below；
(2) emulsion and perlite being added simultaneously in mixing machine, being stirred, mixing time is 5min, wherein, breast
It is 58 to change explosive with perlitic weight ratio:38；
(3) chaff being added into mixing machine, being stirred, mixing time is 20min, wherein, emulsion, pearl
Rock, the weight ratio of chaff three are 58:38:15；
(4) density and explosion velocity of product in mixing machine are detected, density is 0.84g/cm3, explosion velocity be 2000m/s～2200m/
Product between s is qualified products.
Wherein, the explosive parameters of described emulsion are as follows：Density 0.5g/cm3-0.75g/cm3, it is brisance >=13mm, quick-fried
Fast ＞ 3400m/s.Described perlite particle size is in 14 mesh between 18 mesh.
Embodiment 3
A kind of preparation method of the low blasting speed low density explosive being combined suitable for nickel-steel, comprises the following steps：
(1) detect whether the pure medicine density of emulsion, brisance and explosion velocity meet the emulsion and dispatch from the factory explosive parameters, meet
Then follow the steps below；
(2) emulsion and perlite being added simultaneously in mixing machine, being stirred, mixing time is 6min, wherein, breast
It is 58 to change explosive with perlitic weight ratio:38；
(3) chaff being added into mixing machine, being stirred, mixing time is 22min, wherein, emulsion, pearl
Rock, the weight ratio of chaff three are 58:38:15；
(4) density and explosion velocity of product in mixing machine are detected, density is 0.84g/cm3, explosion velocity be 2000m/s～2200m/
Product between s is qualified products.
Wherein, the explosive parameters of described emulsion are as follows：Density 0.5g/cm3-0.75g/cm3, it is brisance >=13mm, quick-fried
Fast ＞ 3400m/s.Described perlite particle size is in 14 mesh between 18 mesh.
The nickel-steel composite plate for obtaining, minimum shear strength τ b are combined using the explosive charge being prepared from embodiment 1-3
>=210Mpa, in addition to detonator shadow region, laminating rate reaches 100%.
The above is only the preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-described embodiment,
All technical schemes belonged under thinking of the present invention belong to protection scope of the present invention.It should be pointed out that for the art
For those of ordinary skill, some improvements and modifications without departing from the principles of the present invention should be regarded as the protection of the present invention
Scope.
Claims (6)
1. it is a kind of suitable for nickel-steel be combined low blasting speed low density explosive preparation method, it is characterised in that including following step
Suddenly：
(1) detect whether the pure medicine density of emulsion, brisance and explosion velocity meet the emulsion and dispatch from the factory explosive parameters, meet, enter
Row following steps；
(2) emulsion and perlite are added simultaneously in mixing machine, stir, wherein, emulsion is heavy with perlitic
Amount is than being 58:38；
(3) chaff is added into mixing machine, stir, wherein, emulsion, perlite, the weight ratio of chaff three are 58:
38:15；
(4) density and explosion velocity of product in mixing machine are detected, density is 0.84g/cm3, explosion velocity be 2000m/s～2200m/s between
Product be qualified products.
2. the preparation method of the low blasting speed low density explosive being combined suitable for nickel-steel according to claim 1, its feature exists
In in described step (2), mixing time is 4min-6min.
3. the preparation method of the low blasting speed low density explosive being combined suitable for nickel-steel according to claim 1, its feature exists
In in described step (3), mixing time is 18min-22min.
4. the preparation method of the low blasting speed low density explosive being combined suitable for nickel-steel according to claim 1, its feature exists
In the explosive parameters of described emulsion are as follows：Density 0.5g/cm3-0.75g/cm3, brisance >=13mm, explosion velocity ＞ 3400m/
s。
5. the preparation method of the low blasting speed low density explosive being combined suitable for nickel-steel according to claim 1, its feature exists
In described perlite particle size is in 14 mesh between 18 mesh.
6. the preparation method of the low blasting speed low density explosive being combined suitable for nickel-steel according to claim 1, its feature exists
In, it is combined the nickel-steel composite plate for obtaining with the explosive charge that the inventive method is prepared from, minimum shear strength τ b >=
210Mpa, in addition to detonator shadow region, laminating rate reaches 100%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611057451.4A CN106518581A (en) | 2016-11-25 | 2016-11-25 | Preparation method of low-detonation-velocity and low-density explosive applicable to nickel-steel compounding |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611057451.4A CN106518581A (en) | 2016-11-25 | 2016-11-25 | Preparation method of low-detonation-velocity and low-density explosive applicable to nickel-steel compounding |
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| CN106518581A true CN106518581A (en) | 2017-03-22 |
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| CN201611057451.4A Pending CN106518581A (en) | 2016-11-25 | 2016-11-25 | Preparation method of low-detonation-velocity and low-density explosive applicable to nickel-steel compounding |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111014932A (en) * | 2019-12-27 | 2020-04-17 | 安徽宝泰特种材料有限公司 | Preparation method of N06022-steel explosive composite board |
| 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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| CN85103347A (en) * | 1985-04-19 | 1986-10-15 | 冶金工业部长沙矿冶研究院 | Formula and process of low-detonation-velocity explosive |
| WO2004067478A1 (en) * | 2003-01-28 | 2004-08-12 | Waldock Kevin H | Explosive compositioncomprising heavy anfo and a plant derived, inert bulking and sensitizing additive |
| 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 |
| CN102252571A (en) * | 2010-05-21 | 2011-11-23 | 南京理工大学 | Solid-state emulsion explosive seismic source grain and preparation method thereof |
| CN102690155A (en) * | 2012-05-16 | 2012-09-26 | 中国人民解放军理工大学 | Lowest critical detonation velocity explosive for explosive welding |
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2016
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| WO2004067478A1 (en) * | 2003-01-28 | 2004-08-12 | Waldock Kevin H | Explosive compositioncomprising heavy anfo and a plant derived, inert bulking and sensitizing additive |
| 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 |
| CN102252571A (en) * | 2010-05-21 | 2011-11-23 | 南京理工大学 | Solid-state emulsion explosive seismic source grain and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111014932A (en) * | 2019-12-27 | 2020-04-17 | 安徽宝泰特种材料有限公司 | Preparation method of N06022-steel explosive composite board |
| 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: 20170322 |