CN107200670A - A kind of low blasting speed emulsion and its application - Google Patents
A kind of low blasting speed emulsion and its application Download PDFInfo
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- CN107200670A CN107200670A CN201710476936.5A CN201710476936A CN107200670A CN 107200670 A CN107200670 A CN 107200670A CN 201710476936 A CN201710476936 A CN 201710476936A CN 107200670 A CN107200670 A CN 107200670A
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- blasting speed
- explosive
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- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B31/00—Compositions containing an inorganic nitrogen-oxygen salt
- C06B31/28—Compositions containing an inorganic nitrogen-oxygen salt the salt being ammonium nitrate
- C06B31/285—Compositions containing an inorganic nitrogen-oxygen salt the salt being ammonium nitrate with fuel oil, e.g. ANFO-compositions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/06—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating by means of high energy impulses, e.g. magnetic energy
- B23K20/08—Explosive welding
-
- 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
- C06B23/006—Stabilisers (e.g. thermal stabilisers)
-
- 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
- C06B23/007—Ballistic modifiers, burning rate catalysts, burning rate depressing agents, e.g. for gas generating
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B31/00—Compositions containing an inorganic nitrogen-oxygen salt
- C06B31/28—Compositions containing an inorganic nitrogen-oxygen salt the salt being ammonium nitrate
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- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Inorganic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
The invention belongs to commercial explosive technical field, the invention provides a kind of low blasting speed emulsion, it includes basic emulsion and clay；The mass percent of the basic emulsion is more than 70% and less than or equal to 95%；The mass percent of the clay is more than or equal to 5% and less than 30%；The basic emulsion is obtained by emulsified bases through sensitizer sensitization；The main component of the clay includes the oxide of silica and aluminium.Also, present invention also offers the application of low blasting speed emulsion described above in metallic explosive welding.The present invention is to provide a kind of cheap new low blasting speed emulsion, available for explosive welding different metal material, be conducive to enterprise according to regulation emulsion explosion velocity, brisance oneself is needed, be also beneficial to reduce the price of Explosion composite special dynamite, reduce pollution to environment to the full extent.
Description
Technical field
The invention belongs to commercial explosive technical field, more particularly to a kind of low blasting speed emulsion and its application, it can be used for
Explosive welding between different metal material, and in particular to the formula design and preparation technology of low-cost explosive.
Background technology
Explosion welding technique is, using energetic material as the energy, to cause plied timber at a high speed by the detonation process of energetic material
Base material is collided, the metallurgical binding between various metals is realized.
In existing process for producing composite material, Explosion composite has the advantages that efficient, reliable, economical.But in order that
Plied timber has sufficiently high speed, and traditional explosion cladding process often requires that larger explosive payload, and it is caused directly
Result is that plied timber easily forms damage in recombination process, while so that bond strength is reduced.This traditional method is present
The shortcomings of energetic material capacity usage ratio is low, environmental pollution is serious.Based on this, the explosion velocity of explosive that explosive welding is used must be controlled
In the range of 2000~2800m/s, it so can just obtain and preferably combine effect.And conventional civil explosive explosion velocity typically exists
3500~5000m/s, therefore, the explosion velocity of reduction blasting explosive for explosion welding have practical significance.
Commercial explosive is also known as civil explosive, is based on oxidant and fuel agent, according to the quick-fried of oxygen balance principle composition
Fried property mixture.The commercial explosive kind primarily now used has three classes：Nitrolite, ammonium nitrate-fuel oil mixture and emulsion.And it is normal
Low explosive is commonly divided into two kinds：One kind is simple substance high explosive plus diluent, and high explosive used is TNT, black rope
The military explosives such as gold.The dangerous high, cost of these high explosive production processes is high, largely has while it can be produced in use
Harmful detonation product, pollutes environment.Another is to add diluent in bulking ammonium nitrate explosive or modified ammonium nitrate-fuel oil explosive, is such as added
The particles such as hollow glass micro-ball, perlite, wood powder are to reduce explosion velocity；But it has that brisance, power are low, detonation property is difficult to
The shortcomings of meeting explosive welding use requirement.
Emulsion is the Typical Representative of water-based explosive, compared with nitrolite, ammonium nitrate-fuel oil mixture, and it has excellent water resistant
Property, it is almost non-hygroscopic, prevented from caking the features such as.The component of emulsion has：Oxidant, fuel agent, emulsifying agent, sensitizer and hair
Infusion (or density-controlling agent), stabilizer etc., typically aqueous oxidizing agent solution are with oils through Water-In-Oil formed by emulsification
Gel, or creaminess, the gluey and solid mixed again with other additives etc. blasting agent.Emulsion is extensive
Applied in the work of various civil blasts, wherein there is the emulsion of the minor diameter low blasting speed for photoface exploision.
Application No. 200910026379.2 (Publication No. CN 101537570A, publication date is September in 2009 23)
A kind of special low explosive formula technique for explosive welding is disclosed in Chinese patent literature, it is to use emulsion
For main material, and adding the materials such as 20%~25% industrial table salt, 5% perlite, 7% saw powder, explosion velocity of explosive is about 2000~
2500m/s.The formula design for low explosive, which has in its limitation, such as foregoing invention formula, at present has used 20%
~25% industrial table salt, there is very important influence to environment after long-term use.
The content of the invention
In view of this, the application provides a kind of low blasting speed emulsion and its application, and the novel emulsion that the present invention is provided is fried
Medical instrument has compared with low blasting speed, available for explosive welding between different metal material, and its cost is low, moreover it is possible to reduction pair to the full extent
The pollution of environment.
The present invention provides a kind of low blasting speed emulsion, and it includes basic emulsion and clay；
The mass percent of the basic emulsion is more than 70% and less than or equal to 95%；
The mass percent of the clay is more than or equal to 5% and less than 30%；
The basic emulsion is obtained by emulsified bases through sensitizer sensitization；
The main component of the clay includes the oxide of silica and aluminium.
Preferably, the emulsified bases includes ammonium nitrate, compound oil phase material, water and emulsifying agent.
Preferably, one or more of the sensitizer in hollow glass microballoon, expanded perlite and natrium nitrosum.
Preferably, the basic emulsion includes the raw material of following mass fraction：82%~90% ammonium nitrate；1%
~5% compound oil phase material；5%~12% water；1%~3% emulsifying agent；3%~4% sensitizer.
Preferably, the density of the basic emulsion is 0.85~1.35g/m3, explosion velocity 2815~5500m/s it
Between.
Preferably, the clay includes the composition of following mass fraction：43%~55% silica；20%~25%
Alundum (Al2O3)；1%~3.5% di-iron trioxide.
Preferably, the density of the clay is 0.9~1.2g/m3, aqueous not higher than 0.5wt%.
The present invention also provides application of the low blasting speed emulsion in metallic explosive welding as described above.
Compared with prior art, the modified emulsifying explosive that the present invention is provided commercially is had on the basis of emulsion,
Premised on ensureing that performance is stable, by the use of clay as conditioning agent, explosion velocity, brisance are can adjust, so as to conveniently and efficiently adjust quick-fried
Hong performance.Basic emulsion in inventive formulation is high compared to ammonium nitrate-fuel oil mixture power, low-order detonation welding prepared therefrom
Explosive property is stable, 8~11mm of explosive welding explosive brisance, explosion velocity 2000-2800m/s requirement is met, so as to ensure blast
Welding effect.The present invention adds the unselected clay of appropriate (5wt%~30wt%), the main component bag of the clay in explosive
The oxide of silica and aluminium is included, the detonation parameters such as explosion velocity, the brisance of explosive can be reduced, while also functioning to the work of flame arrest
With, but not explosive is miss-fired.
Also, in the present invention, on the one hand due to being mixed with 5wt%~30wt% unselected clay in formula, it is more
Inexpensively, on the premise of performance requirement is met, the composition of the basic emulsion in formula is reduced, so as to improve sexual valence
Than.On the other hand, unselected clay, which instead of all multipair environment, the diluent of secondary pollution, such as gutter oil, industrial table salt, quick-fried
Unselected clay components regression is naturally, without any extra environmental pollution after fried.
To sum up, the present invention can obtain low blasting speed emulsion, available for explosive welding different metal material, be conducive to enterprise
According to regulation emulsion explosion velocity, brisance oneself is needed, it is also beneficial to reduce the price of Explosion composite special dynamite, at utmost
Pollution of the upper reduction to environment.
Brief description of the drawings
Fig. 1 is the SEM photograph of unsifted unselected clay in embodiment 1；
Fig. 2 is the SEM photograph of the unselected clay sieved in embodiment 1；
Fig. 3 is the XRD material phase analysis figures of unselected clay in embodiment 1；
Fig. 4 is the SEM photograph of low blasting speed emulsion in embodiment 1；
Fig. 5 is the explosive welding result of control group 2 in embodiment 1；
Fig. 6 be embodiment 3 in using low blasting speed emulsion explosive welding combination interface backscattered electron phase；
Fig. 7 is the propagation test result of the different composite explosives of clay addition in embodiment 4.
Embodiment
The technical scheme in the embodiment of the present invention is clearly and completely described below, it is clear that described embodiment
Only a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, the common skill in this area
The every other embodiment that art personnel are obtained under the premise of creative work is not made, belongs to the model that the present invention is protected
Enclose.
The invention provides a kind of low blasting speed emulsion, it includes basic emulsion and clay；
The mass percent of the basic emulsion is more than 70% and less than or equal to 95%；
The mass percent of the clay is more than or equal to 5% and less than 30%；
The basic emulsion is obtained by emulsified bases through sensitizer sensitization；
The main component of the clay includes the oxide of silica and aluminium.
The novel emulsion explosive that the present invention is provided has compared with low blasting speed, available for explosive welding between different metal material, and
And its cost is low, pollute small.
By weight, the explosive that the present invention is provided includes 70wt%~95wt% basic emulsion, or is emulsification
Explosive raw material；Wherein, 70% this end is free of endpoint value, i.e., the mass percent of described basic emulsion is more than 70% and is less than
Equal to 95%, preferably 72%~90%, more preferably 75%~85%.In an embodiment of the present invention, the basis emulsification
The density of explosive can be 0.85g/m3~1.35g/m3, preferably 1.10g/m3~1.25g/m3.In an embodiment of the present invention,
The explosion velocity of the basic emulsion can be adjusted between 2815~5500m/s；Corresponding brisance can be between 7.8~20.1mm
Regulation.
Compared to ammonium nitrate-fuel oil mixture, the basic emulsion power in inventive formulation is high, low-order detonation weldering prepared therefrom
Connect explosive property stable, 8~11mm of explosive welding explosive brisance, explosion velocity 2000-2800m/s requirement are met, so as to ensure quick-fried
Fried welding effect.In addition, composite explosives of the present invention are safe, water-resistance is strong, and index amplitude of variation is smaller before the deadline.
The present invention is not particularly limited to the source of the basic emulsion, can be that the existing emulsification of in the market is fried
Medicine, is usually to be obtained by emulsified bases through sensitizer sensitization.The emulsified bases does not possess explosion property, and it is sensitized through sensitizer
Just there is explosivity afterwards.In some embodiments of the invention, the emulsified bases includes ammonium nitrate, compound oil phase material, water
And emulsifying agent；It can make by oneself, oxidant and combustible are such as mixed into using emulsifying manner by homogeneous latex, can also be by market
On buy.The embodiment of the present invention is preferred to use commercially available emulsified bases, its wide material sources, price rather moderate.The present invention's
In embodiment, the density of the emulsified bases can be 1.10~1.50g/m3.In some embodiments of the invention, the emulsification
After matrix sensitization, i.e., the explosion velocity of basic emulsion can be adjusted between 2815~5500m/s；Corresponding brisance can 7.8~
20.1mm between adjust.
Emulsified bases in the embodiment of the present invention after buying on the market, then be sensitized through sensitizer and basis emulsification is made and fries
Medicine.In some embodiments of the invention, by weight percent, the emulsified bases includes 82%~90% ammonium nitrate, 1%
~5% compound oil phase material, 5%~12% water and 1%~3% emulsifying agent.Wherein, the compound oil phase material can be with
It is the one or more in the suitable oil product of the viscositys such as diesel oil, heavy oil, machine oil, white oil, vaseline, paraffin；Its content can
Think 2~5%.The emulsifying agent can be the one or more in dehydrating sorbitol monooleate, xylitol monoleate
Mixed acid ester or polyisobutene succinimide family macromolecule emulsifying agent etc..In addition, the content of the water can be 10
~12%.
The present invention uses colloid emulsion, and it uses sensitizer to play a part of " focus ", can be through physical sensitization
Or basic emulsion product is directly prepared into after chemical sensitization.In an embodiment of the present invention, the sensitizer is selected from hollow glass
One or more in glass microballoon, expanded perlite and natrium nitrosum.In a preferred embodiment of the invention, the basis emulsification
Explosive includes the raw material of following mass fraction：82%~90% ammonium nitrate；1%~5% compound oil phase material；5%~
12% water；1%~3% emulsifying agent；3%~4% sensitizer.
In the present invention, the low blasting speed emulsion includes 5wt%~30wt% unselected clay, or is clay；
Wherein, 30% this end is free of endpoint value, i.e., the mass percent of described clay is more than or equal to 5% and less than 30%, is preferably
10%~28%, more preferably 15%~25%.In an embodiment of the present invention, the cheap new low blasting speed emulsification is fried
Medicine, it is mainly made up of following raw materials according by weight：Basic emulsion 70wt% (being free of end points 70%)~95wt%；It is general
Logical clay 5wt%~30wt% (being free of end points 30%).
The present invention adds appropriate unselected clay in explosive, and the main component of the clay includes silica and aluminium
Oxide, can reduce the detonation parameters such as explosion velocity, the brisance of explosive, while also functioning to the effect of flame arrest, but not make explosive
Miss-fire.Also, in the present invention, on the one hand meeting performance due to being mixed with 5wt%~30wt% unselected clay in formula
It is required that on the premise of, the composition of the basic emulsion in formula is reduced.On the other hand, unselected clay instead of all multipair
Environment has the diluent of secondary pollution, such as gutter oil, industrial table salt, and unselected clay components regression is not naturally, appoint after blast
What extra environmental pollution.Therefore, the cost performance of New Explosives of the present invention is high, and product pollution is small after frying.
In addition, the present invention can conveniently and efficiently adjust detonation property：Before unselected clay incorporation is not higher than 30wt%
Put, by the ratio for changing unselected clay and sensitizer, you can obtain different explosive, the composite explosives of brisance.
The present invention is using clay as conditioning agent, and alternatively referred to as diluent belongs to inert additwe.The clay is also referred to as glutinous
Soil, its main component includes the oxide of silica and aluminium.The present invention does not have special limit to the species of the clay and source
System, using unselected clay.In some embodiments of the invention, by mass percentage, the clay is main by following
Composition is constituted：43%~55% silica；20%~25% alundum (Al2O3)；1%~3.5% di-iron trioxide.
Above-described embodiment uses typical unselected clay composition；Because it is mixed phase, the component kind of different regions unselected clay
Class, it is slightly different than regular meeting, but does not influence it to use.
The embodiment of the present invention is preferably crossed 30 mesh sieves before using clay, removes usual impurities.In the implementation of the present invention
In example, the clay after sieving can be dried to moisture not higher than 0.5wt%.In some embodiments of the invention, it is dried viscous
The density of soil can be 0.9~1.2g/m3；Aqueous not higher than 0.5wt%.Specifically, the embodiment of the present invention can be according to following steps
Obtain described clay：
(1) unselected clay is rejected into obvious stone, rubble, then according to mass ratio 1:10~15 mix in water, stir into
2~3 days are stood after mud；
(2) water surface impurity is removed, removes the clay taken out after water after water-bed fully sedimentation, drying for standby.
The present invention adds appropriate inert substance unselected clay in explosive preparation process, mixes low quick-fried described in producing
Fast emulsion.Specifically, the embodiment of the present invention also provides the preparation method of above-mentioned cheap new low blasting speed emulsion, its
Comprise the following steps：
Raw material is weighed respectively according to following mass percent：Basic emulsion 70%~95%；Unselected clay 5%~
30%；
In the insulating box that basic emulsion is placed in 60~80 DEG C of temperature, insulation is taken out after 8 minutes~12 minutes, by upper
Ratio incorporation unselected clay is stated, after being well mixed, that is, the low blasting speed emulsion available for explosive welding is obtained, packages spare.
Correspondingly, the present invention also provides application of the low blasting speed emulsion in metallic explosive welding as described above.
In an embodiment of the present invention, described low blasting speed emulsion can be applied to the quick-fried of general steel plate and stainless steel plate
Fry explosive welding of explosive welding, copper coin and stainless steel plate of welding, aluminium sheet and stainless steel plate etc.；In this regard, the present invention is without spy
Different limitation.
In some embodiments of the invention, the condition of explosive welding includes：Spread web degree 10mm, height of burst 5.0mm.At this
In other embodiments of invention, the condition of explosive welding includes：Spread web degree 10mm, height of burst 8.0mm.
The explosion welding explosive with low explosion velocity that the embodiment of the present invention is prepared has stable performance, and its density can be 0.85
~1.20g/m3.The brisance of low blasting speed emulsion of the present invention can be 8~11mm, and explosion velocity can be 2000-2800m/s, energy
The technical requirements of explosive welding are met, explosive welding effect is ensured.
Also, low blasting speed emulsion of the present invention basic non-environmental-pollution after fried, and it is cheap, it is easy to it is raw
Production, beneficial to popularization and application.
For a further understanding of the application, the low blasting speed emulsion provided with reference to embodiment the application and its should
With being specifically described.
In following examples, used emulsified bases, by buying on the market, is with ammonium nitrate：82~90, composite oil phase
Material：2~5, water：10~12, emulsifying agent：1~3 (quality, %) is constituted, and is mixed oxidant and combustible using emulsifying manner
Into homogeneous latex, (density is 1.10~1.50g/m3), basic emulsification is directly prepared into after physical sensitization, chemical sensitization respectively
Explosive product.
Embodiment 1
The explosive welding low blasting speed commercial explosive of the present invention is prepared as follows：
(1) unselected clay is rejected into obvious stone, rubble, then according to mass ratio 1:12 mix in water, stir into mud
Stand 2~3 days afterwards；
(2) water surface impurity is removed, removes the clay taken out after water after water-bed fully sedimentation, crosses 30 mesh sieves, then dry to water
Divide not higher than 0.5wt%, it is standby.
Wherein, analyzed by ESEM (SEM), the pattern of unsifted unselected clay is referring to Fig. 1, and the left side is in Fig. 1
SEM photograph under 100 μm of usual impurities, the right is the SEM photograph under unsifted 200 μm of unselected clay.That has sieved is common
The pattern of clay is referring to Fig. 2, and Fig. 2 is the SEM photograph of the unselected clay sieved in embodiment 1.
X-ray diffraction (XRD) material phase analysis is carried out to unselected clay, as a result as shown in figure 3, the clay includes 43%
~55% silica；20%~25% alundum (Al2O3)；1%~3.5% di-iron trioxide.Also, it is dried
The density of clay is 0.9~1.2g/m3。
(3) basic emulsion (in this specification prepared by method, by hollow glass microballoon physical sensitization) 85kg is taken, is placed in
In 70 DEG C of insulating box, insulation is taken out after 10 minutes, mixes dried clay 15kg, is well mixed, producing the present invention is used for
The low blasting speed emulsion (being designated as experimental group) of explosive welding；Its density 1.16g/m3, explosion velocity 2650m/s, brisance 10.7mm, symbol
Close the special dimension that explosive welding etc. requires low blasting speed.The pattern of gained composite explosives is referring to Fig. 4, and Fig. 4 is in embodiment 1
The SEM photograph of low blasting speed emulsion, wherein visible clay and rounded glass microsphere.
By experimental group explosive application in the experiment of the explosive welding of general steel plate-stainless steel plate, paving web degree 10mm,
In the case of height of burst 8.0mm, two plate composite effects are good, cut and observe that typical waveform is combined after sample.
Control group 1：By the above-mentioned basic emulsions (hollow glass microballoon physical sensitization) of 70kg, and the above-mentioned dryings of 30kg
Clay afterwards is mixed to prepare；The composite explosives miss-fire.
Control group 2：The above-mentioned basic emulsions (hollow glass microballoon physical sensitization) of 100kg；Its density 1.21g/m3, it is quick-fried
Speed is 5000m/s, brisance 19.6mm, does not meet the special dimension that explosive welding etc. requires low blasting speed.Above-mentioned Explosion composite
Under the experiment condition of plate, sample is cut it was observed that there is obvious diffusion layer between metal after frying, as shown in figure 5, being explosive charge energy mistake
Caused by high.
Specific performance comparison result is referring to table 1：
The results of property of the gained low blasting speed emulsion of 1 embodiment of table 1
Embodiment 2
The explosive welding low blasting speed commercial explosive of the present invention is prepared as follows：
Basic emulsion (in this specification prepared by method, by expanded perlite physical sensitization) 80kg is taken, 70 DEG C are placed in
Insulating box in, insulation is taken out after 10 minutes, mixes dried clay (be the same as Example 1) 20kg, is well mixed, is produced this hair
The bright low blasting speed emulsion (being designated as experimental group) for explosive welding；Its density is 1.10g/m3, explosion velocity 2450m/s, brisance
9.7mm, meets the special dimension that explosive welding etc. requires low blasting speed.By experimental group explosive application in aluminium sheet-stainless steel plate
Explosive welding experiment in, in paving web degree 10mm, in the case of height of burst 5.0mm, two plate composite effects are good, cut and seen after sample
Typical waveform is observed to combine.
Control group 1：By the above-mentioned basic emulsions (expanded perlite physical sensitization) of 70kg, and after the above-mentioned dryings of 30kg
Clay be mixed to prepare；The composite explosives miss-fire.
Control group 2：(in this specification prepared by method, quick by expanded perlite physics for the above-mentioned basic emulsions of 100kg
Change)；Its density 1.31g/m3, explosion velocity is 4500m/s, brisance 17.8mm, does not meet explosive welding etc. and requires low blasting speed
Special dimension.Under the experiment condition of above-mentioned explosive clad plate, compound plate (aluminium sheet) is flicked from substrate (stainless steel plate), is that explosive is quick-fried
Fried energy is too high, reflection rarefaction wave is too strong caused.
Specific performance comparison result is referring to table 2：
The results of property of the gained low blasting speed emulsion of 2 embodiment of table 2
Embodiment 3
The explosive welding low blasting speed commercial explosive of the present invention is prepared as follows：
Basic emulsion (in this specification prepared by method, by natrium nitrosum chemical sensitization) 75kg is taken, 70 DEG C are placed in
In insulating box, insulation is taken out after 10 minutes, mixes dried clay (be the same as Example 1) 25kg, is well mixed, is produced the present invention
For explosive welding low blasting speed emulsion (being designated as experimental group)；Its density 1.08g/m3, explosion velocity 2300m/s, brisance 8.0mm,
Meet the special dimension that explosive welding etc. requires low blasting speed.In experiment applied to the explosive welding of copper coin-stainless steel plate,
In the case of paving web degree 10mm, height of burst 5.0mm, two plate composite effects are good, cut and observe that typical waveform is combined after sample,
As shown in fig. 6, Fig. 6 be embodiment 3 in using low blasting speed emulsion explosive welding combination interface backscattered electron phase.
Control group 1：It is above-mentioned dried by the above-mentioned basic emulsions (natrium nitrosum chemical sensitization) of 70kg, and 30kg
Clay is mixed to prepare；The composite explosives miss-fire.
Control group 2：The above-mentioned basic emulsions of 100kg (in this specification prepared by method, by natrium nitrosum chemical sensitization)；
Its density 1.23g/m3, explosion velocity is 5500m/s, brisance 20.1mm, does not meet explosive welding etc. and requires the special of low blasting speed
Field.Under the experiment condition of above-mentioned explosive clad plate, compound plate (copper coin) is flicked from substrate (stainless steel plate), is explosive charge energy
Amount is too high, reflection rarefaction wave is too strong caused.
Specific performance comparison result is referring to table 3：
The results of property of the gained low blasting speed emulsion of 3 embodiment of table 3
Embodiment 4
Basic emulsion (in this specification prepared by method, by hollow glass microballoon physical sensitization) in Example 1,
In the insulating box for being placed in 70 DEG C, insulation is taken out after 10 minutes, and different amounts of dried clay (be the same as Example 1) is mixed respectively,
It is well mixed, respectively obtain composite explosives；Wherein, the addition of the clay is respectively 10%, 20%, 30%.
Propagation test is carried out to the composite explosives respectively, experimental method is specially：By external diameter 25mm, wall thickness 1mm PVC
Plastic tube is cut into 100mm length, chooses 3.By described PVC plastic expects pipe one end with after normal transparent tape seal, the other end is distinguished
Densely load the novel emulsion explosive that unselected clay doping ratio is 10%, 20%, 30%.Adhesive tape sealing end underlay one
Block thickness is detonation after the thick general steel plates of 1.0mm, other end insertion detonator, whether to puncture the general steel plate of bottom as mark
Standard, judges its whether stable propagation of explosion.Such as puncture bottom steel plate, the average diameter perforated is recorded in the lump.Detailed results
Referring to Fig. 7, Fig. 7 is the propagation test result of the different composite explosives of clay addition in embodiment 4.From figure 7 it can be seen that
On the premise of unselected clay incorporation is not higher than 30wt%, composite explosives explosion transfer performance of the present invention is preferable；Incorporation is 30%
Composite explosives miss-fire.
As seen from the above embodiment, the composite explosives that the present invention is provided commercially are had on the basis of emulsion, profit
With clay as conditioning agent, explosion velocity, brisance are can adjust, so that detonation property is conveniently and efficiently adjusted, and performance is stable, it is easy to it is raw
Production, can ensure explosive welding effect.Meanwhile, the low blasting speed emulsion has cost performance high, and fried rear product pollution is small etc.
Feature.
The explanation of above example is only intended to the method and its core concept for helping to understand the present invention.It should be pointed out that pair
, under the premise without departing from the principles of the invention, can also be to present invention progress for those skilled in the art
Some improvement and modification, these are improved and modification is also fallen into the protection domain of the claims in the present invention.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or using the present invention.
A variety of modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The most wide scope caused.
Claims (8)
1. a kind of low blasting speed emulsion, it is characterised in that including basic emulsion and clay；
The mass percent of the basic emulsion is more than 70% and less than or equal to 95%；
The mass percent of the clay is more than or equal to 5% and less than 30%；
The basic emulsion is obtained by emulsified bases through sensitizer sensitization；
The main component of the clay includes the oxide of silica and aluminium.
2. low blasting speed emulsion according to claim 1, it is characterised in that the emulsified bases includes ammonium nitrate, answered
Close oil phase material, water and emulsifying agent.
3. low blasting speed emulsion according to claim 1, it is characterised in that it is micro- that the sensitizer is selected from double glazing
One or more in ball, expanded perlite and natrium nitrosum.
4. according to low blasting speed emulsion according to any one of claims 1 to 3, it is characterised in that the basis emulsification is fried
Medicine includes the raw material of following mass fraction：82%~90% ammonium nitrate；1%~5% compound oil phase material；5%~12%
Water；1%~3% emulsifying agent；3%~4% sensitizer.
5. low blasting speed emulsion according to claim 1, it is characterised in that the density of the basic emulsion is
0.85~1.35g/m3, explosion velocity is between 2815~5500m/s.
6. low blasting speed emulsion according to claim 1, it is characterised in that the clay includes following mass fraction
Composition：43%~55% silica；20%~25% alundum (Al2O3)；1%~3.5% di-iron trioxide.
7. low blasting speed emulsion according to claim 1, it is characterised in that the density of the clay is 0.9~1.2g/
m3, aqueous not higher than 0.5wt%.
8. such as application of the low blasting speed emulsion according to any one of claims 1 to 7 in metallic explosive welding.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108372357A (en) * | 2018-02-26 | 2018-08-07 | 中国科学技术大学 | A kind of preparation method of the explosion clad pipe of high-energy utilization rate |
| CN108467328A (en) * | 2018-04-02 | 2018-08-31 | 安徽理工大学 | A kind of rollable blasting explosive for explosion welding |
| CN110937964A (en) * | 2019-12-25 | 2020-03-31 | 四川金雅科技有限公司 | Composite oil phase for mixed emulsion explosive and preparation method thereof |
| CN111908987A (en) * | 2020-07-31 | 2020-11-10 | 宜兴市阳生化工有限公司 | Low-detonation-velocity small-diameter powdery emulsion explosive |
| CN113860976A (en) * | 2021-11-24 | 2021-12-31 | 安徽理工大学 | Preparation method of hollow polymer microsphere sensitized emulsion explosive for explosive welding |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101537570A (en) * | 2009-04-22 | 2009-09-23 | 南京润邦金属复合材料有限公司 | Explosion-welding/rolling copper-aluminum compound conductive bar |
| CN104761418A (en) * | 2015-04-07 | 2015-07-08 | 宏大矿业有限公司 | Low-detonation-velocity explosive for explosive welding and preparation method thereof |
-
2017
- 2017-06-21 CN CN201710476936.5A patent/CN107200670B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101537570A (en) * | 2009-04-22 | 2009-09-23 | 南京润邦金属复合材料有限公司 | Explosion-welding/rolling copper-aluminum compound conductive bar |
| CN104761418A (en) * | 2015-04-07 | 2015-07-08 | 宏大矿业有限公司 | Low-detonation-velocity explosive for explosive welding and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 余燕: "低爆速乳化炸药及其在爆炸焊接中的应用", 《中国优秀硕士学位论文全文数据库工程科技I辑》 * |
| 朱世发: "《沉积岩与沉积相》", 31 August 2015, 中国石油大学出版社 * |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108372357A (en) * | 2018-02-26 | 2018-08-07 | 中国科学技术大学 | A kind of preparation method of the explosion clad pipe of high-energy utilization rate |
| CN108372357B (en) * | 2018-02-26 | 2020-08-28 | 中国科学技术大学 | Preparation method of explosive cladding tube with high energy utilization rate |
| CN108467328A (en) * | 2018-04-02 | 2018-08-31 | 安徽理工大学 | A kind of rollable blasting explosive for explosion welding |
| CN110937964A (en) * | 2019-12-25 | 2020-03-31 | 四川金雅科技有限公司 | Composite oil phase for mixed emulsion explosive and preparation method thereof |
| CN111908987A (en) * | 2020-07-31 | 2020-11-10 | 宜兴市阳生化工有限公司 | Low-detonation-velocity small-diameter powdery emulsion explosive |
| CN113860976A (en) * | 2021-11-24 | 2021-12-31 | 安徽理工大学 | Preparation method of hollow polymer microsphere sensitized emulsion explosive for explosive welding |
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