CN113979815A - Inert filler of simulated explosive for step-by-step explosive charging - Google Patents
Inert filler of simulated explosive for step-by-step explosive charging Download PDFInfo
- Publication number
- CN113979815A CN113979815A CN202111194782.3A CN202111194782A CN113979815A CN 113979815 A CN113979815 A CN 113979815A CN 202111194782 A CN202111194782 A CN 202111194782A CN 113979815 A CN113979815 A CN 113979815A
- Authority
- CN
- China
- Prior art keywords
- explosive
- inert filler
- ammonium sulfate
- filler
- simulated
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- C06B23/001—Fillers, gelling and thickening agents (e.g. fibres), absorbents for nitroglycerine
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B21/00—Apparatus or methods for working-up explosives, e.g. forming, cutting, drying
- C06B21/0033—Shaping the mixture
- C06B21/0066—Shaping the mixture by granulation, e.g. flaking
-
- 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
- C06B23/005—Desensitisers, phlegmatisers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
Abstract
The invention discloses an inert filler of a simulated explosive for step-by-step explosive charging, which consists of 65 to 75 percent of ammonium sulfate, 20 to 30 percent of aluminum powder, 3 to 5 percent of fluororubber, 0.5 to 1 percent of diisooctyl sebacate, 0.1 to 0.5 percent of lecithin, 0.5 to 1 percent of composite wax and 0.1 to 0.3 percent of colloidal graphite. The inert filler can simulate the real process, technical state and charging effect of the explosive A-IX-II and RL-F pressed by the projectile body step by step, and meets the filling requirement of the inert projectile and the requirement of the technical research of the projectile body step by step explosive pressing process.
Description
Technical Field
The invention relates to the filling of inert bombs in weapon ammunition, in particular to an inert filler of a simulated explosive for step-by-step explosive charging.
Background
Inert projectiles in weapons ammunition refer to auxiliary projectiles that replace explosive charges and functional elements within the projectile with inert materials of equal mass. The inert filling material generally requires compatibility with contacting elastomers and parts, and has certain strength and stability after filling, so that the filling performance is met, the filling density is ensured, and the use and storage requirements are met. The inert projectile is mainly used for testing and pre-acceptance of products such as artillery, propellant powder, ballistic equipment, fuze, ignition piece, traction tube, cartridge and assembled projectile bodies, researching and testing new products, identifying and selecting standard artillery, standard ammunition and ballistic equipment and the like.
The step-by-step explosive loading method for the bullet is a continuous explosive loading process or method which utilizes the combined up-and-down reciprocating and rotating motion of a spiral rod on a step-by-step press-loading machine to input and compress the granular explosive into a bullet chamber of the bullet. The working principle of the step-by-step pressing charge method is as follows: during medicine charging, the screw rod is driven by a pressure head of the step-by-step press-mounting machine to realize up-and-down reciprocating and rotary combined motion, during the motion process, the medicine is rotationally conveyed when the medicine is not pressed (the screw rod is upward), and the medicine is stopped being pressed by the screw rod when the medicine is pressed (the screw rod is downward). When the explosive under the screw rod reaches a certain density value and the compressive resistance exceeds the set oil pressure counter pressure, the screw rod retreats, and the explosive is filled into the bomb through the continuous explosive conveying and pressing of the screw rod and reaches the expected explosive density. The step-by-step pressing charging method can be used for charging medium and large caliber grenades, mortar shells, rocket projectile warheads and the like, and is widely applied to the field of projectile charging at present.
The requirements of the projectile body step-by-step explosive loading on explosives mainly comprise:
(1) the explosive has good flowing property and is in a loose particle shape, which is beneficial to the delivery and the pressing of the explosive. The free-flowing property refers to the difficulty of flowing, dispersing and filling solid particulate matters into a shell, is an important characteristic for reflecting whether powder is easy to flow or not, is an important reflection for the surface state, the surface characteristic and the crystal shape of particles, and directly influences the production efficiency of explosive charging. The powder explosive feeding device has the advantages that the flowing property is good, the explosive can be crushed into powder by the aid of the screw rod in the explosive feeding process, the smoothness of explosive feeding is guaranteed, the pressure is stable, the screw rod can be prevented from being stuck and blocking the opening of a sleeve of the funnel during explosive feeding, and the phenomenon that the explosive feeding is interrupted to cause 'jamming' can be avoided;
(2) the explosive should have good plasticity. Because the explosive with good plasticity can obtain higher density under smaller pressure;
(3) the mechanical sensitivity of the explosive should not be too high. Because the spiral rod and the explosive generate certain impact and friction in the charging process, danger is easy to occur due to too high mechanical sensitivity, and the general high-energy explosive can be used after being passivated.
The explosive which can be used for the step-by-step pressure charging method only has one type of A-IX-II (dull black aluminum) explosive, and comprises the following components in percentage by weight: 80% of passivated cyclonite and 20% of aluminum powder. However, the A-IX-II explosive contains a large amount of aluminum powder which is easy to fly, and a large amount of dust is generated on the production site in the charging process of equipment, so that the personnel operating on the site are greatly harmed. In order to solve the problems, a novel aluminum-containing bonded RL-F explosive for step-by-step press-fitting medicines is developed in recent years, and comprises the following components in percentage by weight: RDX 74%, aluminum powder 20%, desensitizer 4.5% and binder 1.5%. The RL-F explosive changes the insensitive agent in the A-IX-II explosive into the bonding insensitive agent, has obvious advantage of low specific pressure forming property, equivalent energy, reduced sensitivity and obviously improved flying phenomenon of aluminum powder.
The typical formulation of inert filler loaded by the prior inert bomb body step-by-step loading method is ammonium sulfate: aluminum powder: desensitizer (e.g., paraffin, stearic acid, etc.): 20%: 4 percent. The main problems of the inert filler formula during the charge production and use are found to be that:
(1) the density of the filler itself is low. Since the theoretical maximum density of the inert filler is 1.92g/cm3Significantly lower than the theoretical maximum density of the A-IX-II and RL-F explosives of 1.96g/cm3Directly results in that the filling density of the elastomer when filled with the inert filler is lower and can only reach 1.64g/cm at most3The actual charge density (more than or equal to 1.72 g/cm) of the A-IX-II and RL-F explosive loaded in a step-by-step manner cannot be achieved3The maximum density reaches 1.76g/cm3) The actual step-by-step explosive pressing process and explosive loading effect of the explosive cannot be simulated;
(2) the plasticity of the filler is poor, and the molding manufacturability of step-by-step press-loading filling is poor. The plasticity and the press-fitting forming manufacturability of the ammonium sulfate raw material particles are poor, and the bonding performance of the insensitive agent taking paraffin as a main body in the inert filler is poor, so that the plasticity of the inert filler is poor, the forming manufacturability of step-by-step press-fitting filling is poor, the filling density is lower than A-IX-II and RL-F explosives under the same pressure, and the compression strength, the shear strength and the tensile strength after filling are low, so that defects such as cracks, looseness and the like are easy to occur;
(3) the filler has poor free-running properties and poor consistency, and is difficult to control. The fluidity of the filler is determined by the essential structural characteristics of ammonium sulfate and the composition of the filler, the filler is prepared by directly using raw material particles of the ammonium sulfate, the particle size of the ammonium sulfate directly influences the fluidity of the inert filler, and the raw material particles of the ammonium sulfate are often uneven in size and poor in consistency, so that the manufactured inert filler is poor in fluidity, difficult to control and poor in consistency, the screw rod conveying material is easily interrupted in the filling process of the elastomer, the elastomer cannot be continuously filled, and the normal use is difficult;
(4) the labor intensity of the filler preparation production process is high, and the environmental pollution is serious. The inert filler is mainly produced by mixing through manual operation of personnel, and the automation degree is low. The specific preparation and production process comprises the following steps: weighing the components according to the proportion, pouring ammonium sulfate into a hemispherical pan, manually frying to 85-95 ℃, adding paraffin and stearic acid crystal grains, uniformly stirring by using a wood bar, taking out, putting into an aluminum plate, cooling to room temperature, adding aluminum powder and micro-powder graphite, uniformly stirring and mixing, and filling into a plastic packaging bag for later use. In the mixing process, the labor intensity of operators is high, and a large amount of aluminum powder dust can be generated in the production field, which brings great harm to field operators.
Therefore, how to improve the filling density of inert fillers for simulating the step-by-step press mounting of the explosive for medical use of the projectile, improve the plasticity of the fillers, improve the forming manufacturability of the step-by-step press mounting of the fillers, improve the compression strength, the shear strength and the tensile strength of the fillers, ensure the filling quality, control the free-running property of the fillers, realize the real step-by-step press mounting process and the loading effect of the simulated A-IX-II and RL-F explosives, improve the automation degree of the preparation process of the fillers, avoid the environmental pollution, reduce the damage to operators caused by flying aluminum powder, and become a technological problem to be solved urgently. Therefore, the invention provides the inert filler for simulating the explosive for pressing the explosive step by step, which has certain necessity and practicability.
Disclosure of Invention
The invention aims to solve the technical problems of low loading density, poor process conformity, poor loading quality, high labor intensity in the preparation and production process, serious environmental pollution and the like of the conventional inert bomb, and the inert filler can simulate the real process, technical state and explosive loading effect of explosive A-IX-II and RL-F pressed by a bomb step by step and meet the loading requirement of the inert bomb and the requirement of the technical research on explosive pressing by step of the bomb.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: the inert filler of the simulated explosive for step-by-step explosive loading consists of the following raw materials in percentage by weight:
65-75% of ammonium sulfate, 20-30% of aluminum powder, 3-5% of fluororubber, 0.5-1% of diisooctyl sebacate, 0.1-0.5% of lecithin, 0.5-1% of composite wax and 0.1-0.3% of colloidal graphite.
The composite wax consists of 75% of microcrystalline wax, 15% of petroleum fat and 10% of gum rosin.
The high molecular adhesive is added in the formula of the inert filler, so that the strength of the filler is increased, the forming manufacturability is improved, and the filling density is further improved. The inert filler is added with a macromolecular adhesive fluororubber, so that the formed filler has the required mechanical strength. The fluororubber has good physical and chemical stability, and does not absorb moisture, decompose or age within the use temperature range (plus or minus 50 ℃) of the product. The fluororubber does not have chemical action with each component of the inert filler, does not have action with contacted elastomers and other materials, and has good compatibility. The fluororubber has good bonding strength to ammonium sulfate and good mechanical strength. The fluororubber also has good plasticity and can be dissolved in a common solvent (such as ethyl acetate), thereby being beneficial to the coating process of ammonium sulfate. When bonding particles of inert material with a binder, the bond strength is determined by two forces: i.e. the adhesion between the binder and the material particles, and the cohesion of the binder itself. The high molecular compound has higher cohesive force than the low molecular compound, and when the organic high molecular compound is used as the binder, the mechanical strength is higher than that of the low molecular compound, and the mechanical strength of the high molecular compound is related to the molecular weight, the molecular structure and the crystallinity. Generally, the molecular weight is large, the crystallinity is high, the molecular structure is reticular, and the mechanical strength is large. The rubber polymer has elasticity, and molecules contain double bonds, can be vulcanized with sulfur and react to form a substance with a net structure, and is in a high elastic state in a wide temperature range. The materials bonded by the high molecules are much superior to the materials bonded by the low molecules, the grain strength of the materials is high, the bonding performance is good, the forming manufacturability is good, and the filling density can be further improved.
The plasticizer is added in the formula of the inert filler, so that the plasticity of the filler is increased, the forming manufacturability is improved, and the filling density is improved. When the polymer is used as a binder, a plasticizer is usually added, and the plasticizer is used for lowering the glass transition temperature of the binder and increasing the plasticity and flexibility of the material. Thus, the plasticizer diisooctyl sebacate (DOS) and lecithin were added to the inert filler. Plasticizers are low molecular weight compounds that are some high boiling point liquids or low melting point solids. It is plasticized because, when added to a polymer, it penetrates between the polymer segments, weakening the attraction of the molecules to each other, so that the segments tend to rotate, and at a lower temperature, it begins to exhibit high elastic properties, increasing fluidity, i.e. lowering the glass transition temperature, the so-called plasticizing effect. Since the glass transition temperature of the polymer binder used is generally higher than room temperature, the flexibility and plasticity of these polymers can be increased by adding a small amount of plasticizer. The material containing the high molecular binder can improve the forming performance of the material due to the addition of the plasticizer, and has good compressibility, high grain density and high strength. Ester plasticizers such as diisooctyl sebacate (DOS) and lecithin, which are characterized by high boiling point, low volatility liquid, good plasticizing effect, good stability, no toxicity and wide sources. The plasticizer can improve the flexibility, elasticity, shock resistance and low temperature resistance of the plasticized polymer.
The formula of the desensitizer in the inert filler is improved, and the cohesiveness and plasticity of the desensitizer are improved. Paraffin in the formula of the desensitizer is changed into composite wax, and the components of the composite wax comprise microcrystalline wax (75%), petroleum resin (15%) and gum rosin (10%). Compared with the micro-powder graphite, the colloidal graphite has excellent self-lubricating property, plasticity and adhesiveness, can effectively improve the cohesiveness and plasticity of the desensitizer, improve the molding manufacturability of inert materials and improve the strength of the grain.
The inert filler for press-mounting the medicinal simulated explosive step by step designed by the technical scheme has the following beneficial effects:
1. the theoretical maximum density of the filler is improved by adjusting the proportion of each component in the inert filler, so that the density of the inert filler filled in the elastomer is improved. Namely, the ratio of the aluminum powder is increased from 20 percent to 24 percent, the ratio of the ammonium sulfate is reduced from 76 percent to 70 percent, the ratio of the polymer binder and the plasticizer is determined to be 5 percent, the ratio of the composite desensitizer is determined to be 1 percent, and the theoretical density of the inert filler is enabled to reach 1.96g/cm3With the theoretical density of A-IX-II and RL-F explosives of 1.96g/cm3Similarly, the loading density of the inert filler can be adjusted from 1.64g/cm3Increased to 1.68g/cm3The above;
2. by improving the formula of the inert filler, adding high-molecular binder fluororubber, ester plasticizer diisooctyl sebacate (DOS) and lecithin, changing paraffin in the desensitizer into composite wax (microcrystalline wax 75%, petroleum fat 15% and gum rosin 10%), changing micro-powder graphite into colloidal graphite, increasing the plasticity and strength of the filler, improving the manufacturability of step-by-step press-fitting molding, improving the compression strength, shear strength and tensile strength of the filler, further improving the filling density, and increasing the filling density to 1.72g/cm3Above, the maximum density can reach 1.76g/cm3The filling quality is ensured;
3. by optimizing the preparation process of the inert filler, the raw materials such as ammonium sulfate and the like are subjected to the working procedures of crushing, kneading, bonding, coating, granulating, screening, drying and the like to prepare the material with uniform particles, the free-running property and the consistency of the inert filler are improved, and the true step-by-step explosive pressing process and the explosive loading effect of A-IX-II and RL-F explosives are simulated. The granularity of the prepared inert filler is controlled to be about 30 meshes, and the free-running property and the consistency are good. The fluidness of the inert filler is finally consistent with the fluidness of the A-IX-II and RL-F explosives to be simulated by controlling the size and consistency of the particle size of the inert filler, so that the requirement of filling the inert bomb body can be met, and the requirement of groping the filling process parameters during the technical research of the filling process can be met;
4. the bonded, coated and granulated ammonium sulfate polymer bonding particles and aluminum powder are added into a paddle-free mixer device together, and the materials are mixed in a closed state, so that the automation degree of preparation is improved, the aluminum powder flying in the mixing process is avoided, the environmental pollution is avoided, the damage to operators caused by the aluminum powder flying in the filler preparation process is reduced, and the labor condition and the operation environmental condition are improved;
5. the fluidity and the bulk density of the prepared inert filler are ensured to be basically consistent with those of A-IX-II and RL-F explosives by analyzing and detecting the fluidity and the bulk density of the prepared inert filler. The detection method and the standard selection of the free-running property execute GJB5891.4 ' Angle of repose for testing the free-running property of initiating explosive's free-running property ', and the detection method and the standard selection of the bulk density execute the method 402.3 bulk density standard container method in GJB772A ' explosive test method ', and practice proves that the detection method is scientific, reasonable and feasible and has good detection effect;
6. through carrying out a process test of filling inert fillers in the projectile body, the process conformance of the inert fillers for step-by-step explosive loading of the projectile body is examined and verified, and the actual effect of step-by-step explosive loading of medicinal A-IX-II and RL-F is simulated is examined and verified. The filling density of the prepared inert filler can reach 1.72g/cm by using the improved formula and the optimized preparation process3Above, the maximum density can reach 1.76g/cm3The explosive has the same charge density as the explosive A-IX-II and RL-F, has good filling quality, has no defects of cracks, defective holes, looseness and the like, and can simulate the actual filling process and effect of the explosive A-IX-II and RL-F for pressing the medicinal explosive A-IX-II and RL-F step by a projectile.
Detailed Description
The invention relates to an inert filler of a simulated explosive for step-by-step explosive loading, which comprises the following raw materials in percentage by weight:
65-75% of ammonium sulfate, 20-30% of aluminum powder, 3-5% of fluororubber, 0.5-1% of diisooctyl sebacate, 0.1-0.5% of lecithin, 0.5-1% of composite wax and 0.1-0.3% of colloidal graphite.
The invention relates to an inert filler example 1 of a simulated explosive for step-by-step explosive loading, which comprises the following raw materials in percentage by weight:
65% of ammonium sulfate, 30% of aluminum powder, 3% of fluororubber, 1% of diisooctyl sebacate, 0.2% of lecithin, 0.5% of composite wax and 0.3% of colloidal graphite. Wherein the composite wax consists of 75% of microcrystalline wax, 15% of petroleum fat and 10% of gum rosin.
The invention relates to an inert filler embodiment 2 of a simulated explosive for step-by-step explosive loading, which comprises the following raw materials in percentage by weight:
68% of ammonium sulfate, 27.8% of aluminum powder, 3% of fluororubber, 0.5% of diisooctyl sebacate, 0.1% of lecithin, 0.5% of composite wax and 0.1% of colloidal graphite. Wherein the composite wax consists of 75% of microcrystalline wax, 15% of petroleum fat and 10% of gum rosin.
The invention relates to an inert filler embodiment 3 of a simulated explosive for step-by-step explosive loading, which comprises the following raw materials in percentage by weight:
70% of ammonium sulfate, 24% of aluminum powder, 4% of fluororubber, 0.7% of diisooctyl sebacate, 0.3% of lecithin, 0.8% of composite wax and 0.2% of colloidal graphite. Wherein the composite wax consists of 75% of microcrystalline wax, 15% of petroleum fat and 10% of gum rosin.
The invention relates to an inert filler embodiment 4 of a simulated explosive for step-by-step explosive loading, which comprises the following raw materials in percentage by weight:
73% of ammonium sulfate, 20% of aluminum powder, 5% of fluororubber, 0.8% of diisooctyl sebacate, 0.4% of lecithin, 0.6% of composite wax and 0.2% of colloidal graphite. Wherein the composite wax consists of 75% of microcrystalline wax, 15% of petroleum fat and 10% of gum rosin.
The invention relates to an inert filler embodiment 5 of a simulated explosive for step-by-step explosive loading, which comprises the following raw materials in percentage by weight:
75% of ammonium sulfate, 17.2% of aluminum powder, 5% of fluororubber, 1% of diisooctyl sebacate, 0.5% of lecithin, 1% of composite wax and 0.3% of colloidal graphite. Wherein the composite wax consists of 75% of microcrystalline wax, 15% of petroleum fat and 10% of gum rosin.
The invention firstly adjusts the formulation of the main components in the filler by improving the formulation of the inert fillerAnd the theoretical maximum density of the filler is improved, and the aim of improving the loading density of the elastomer is finally fulfilled. Due to the density of the aluminum powder (2.7 g/cm)3) Specific density to ammonium sulfate (1.77 g/cm)3) And the ratio of aluminum powder in the formula is increased according to theoretical calculation, the ratio of ammonium sulfate is correspondingly reduced, and the theoretical maximum density of the filler can be effectively increased. For example, the theoretical maximum density of the inert filler can be increased by increasing the ratio of the aluminum powder from 20% to more than 24%, and correspondingly decreasing the ratio of the ammonium sulfate from 76% to less than 72%3The final loading density of the elastomer was adjusted from 1.64g/cm3Increased to 1.68g/cm3The above.
The invention relates to a preparation method of an inert filler of a simulated explosive for step-by-step explosive loading, which comprises the following steps:
(1) raw material preparation weighing: weighing the raw materials according to the percentage of the raw materials in the example 3;
(2) and crushing the ammonium sulfate, namely crushing the ammonium sulfate so as to enable the ammonium sulfate to be bonded, coated and granulated to be beneficial to improving the free-flowing property of the inert filler. Because the flowability of the inert filler is affected by the size of the ammonium sulfate raw material particles if the raw material particles of ammonium sulfate are directly used for the mixing preparation. Because the particle size of the ammonium sulfate is not uniform, the free-running property of the filler is difficult to control, and normal drug delivery and press fitting can not be carried out when the inert filler is filled in the elastomer. Therefore, crushing the ammonium sulfate particles into powder by using a crusher device for subsequent bonding, coating and granulating;
(3) fluororubber dissolution: firstly, cutting fluororubber into small fragments by a slicer, then adding the small fragments into a kneading pot of a vertical kneader, adding an organic solvent ethyl acetate (the mass ratio is 30 percent additionally), starting heating and stirring of the pot body of the kneader to promote the dissolution of the fluororubber, wherein the material heating temperature is 50 ℃, the rotating speed of a stirring paddle is 25 r/min-30 r/min, and the time is 4 hours, so as to realize the dissolution of the fluororubber;
(4) bonding and coating of ammonium sulfate: after the fluororubber is completely dissolved in the ethyl acetate, the plasticizer (diisooctyl sebacate and lecithin) and the composite wax are added for stirring and mixing, and then the ammonium sulfate is added for stirring and kneading, so that the solution completely infiltrates the surface of the ammonium sulfate crystal to form good coating. The rotating speed of the stirring paddle is 30 r/min-35 r/min, and the heating temperature of the materials is 50 ℃ in the stirring kneading process. Finally, the material is vacuumized, and the vacuum degree is less than or equal to 1 kPa. Kneading the materials until the solvent is volatilized and the materials are in a paste shape, and taking out the materials. The bonding and the coating of the ammonium sulfate are realized;
(5) granulating: pouring the paste-shaped material into a rolling granulator, extruding the material to pass through a sieve plate with the aperture of 1.5mm to form a short cylinder, and performing air draft drying in an air draft kitchen until most of the ethyl acetate solvent is volatilized, so that the particles are not adhered to each other;
(6) screening: and (3) sieving the granular materials by using a sieving machine, namely sieving the granular materials by using a 20-mesh sieve, taking undersize materials, then sieving by using a 40-mesh sieve, and taking oversize materials. The purpose is to remove particles with over-large (over 20 meshes) and under-small (less than 40 meshes) in the material, so that the particle sizes of the inert filler are basically consistent and are controlled to be about 30 meshes, and the free-running property is good. The fluidity of the inert filler is finally consistent with that of the A-IX-II and RL-F explosives to be simulated by controlling the size and consistency of the particle size of the inert filler, so that the requirement of an elastomer filling process can be met;
(7) drying: putting the screened granular materials into a drying box or a drying room for drying treatment, wherein the drying temperature is 60 ℃, and the drying time is 4 hours, so that uniform granular materials can be obtained;
(8) mixing: adding the bonded, coated, granulated and screened particles taking ammonium sulfate as a main body and aluminum powder into a mixing pot of a paddle-free mixer device, covering a pot cover, starting the pot body to rotate at the rotating speed of 35 r/min-40 r/min for 30min, mixing the materials in a closed state, improving the automation degree of the manufacturing process, avoiding the aluminum powder from flying in the mixing process, and improving the labor condition and the operation environment condition;
(9) physical property analysis and detection: bulk density refers to the mass of a material naturally packed in a unit volume under specified and vibration-free conditions, and is also known as the bulk density. The physical properties of the filler, such as flowability and bulk density, directly influence the filling process performance of the filler. The detection method and standard selection of the free-running property are implemented by the method 402.3 bulk density standard container method in GJB5891.4 explosive test method initiating explosive free-running property determination repose angle method, and the detection method and standard selection of the bulk density are implemented by the method GJB772A explosive test method. Therefore, for the prepared inert filler, firstly, the free-running property of the filler is analyzed and detected according to GJB5891.4 'Angle of repose for testing the free-running property of initiating explosive by initiating explosive test method', and then the bulk density of the filler is analyzed and detected according to the method 402.3 bulk density standard container method in GJB772A 'explosive test method'. Comparing the detection result with the corresponding detection results of the A-IX-II and RL-F explosives, wherein the deviation between the detection results and the corresponding detection results is less than or equal to 5%;
(10) packaging and boxing: after the materials in the pot of the paddle-free mixer are mixed, the pot cover is opened, the pot body is inclined downwards, the materials are poured into a double-layer plastic packaging bag, tied by a hemp rope, fastened and placed into a packaging box.
The process examination and verification test of filling inert fillers in the elastomer comprises the following steps: the technological conformity of the inert filler for the step-by-step explosive loading of the projectile is examined, and the actual effect of simulating step-by-step explosive loading of the medicinal A-IX-II and RL-F explosives is verified. The inert filler is prepared by using the improved formula and the optimized preparation process, and the projectile body step-by-step medicament pressing process test is carried out. The filling density and filling quality of the elastomer filled with the inert filler are tested, and the filling density is required to be 1.64g/cm from the prior art3The explosive density is increased to be equal to that of A-IX-II and RL-F explosives (more than or equal to 1.72 g/cm)3The maximum density reaches 1.76g/cm3) And the filling quality is good, and the explosive column has no defects of cracks, defective holes, looseness and the like. Through process test and examination, the improved inert filler can simulate the actual filling process and effect of the explosive A-IX-II and RL-F for the step-by-step pressing of the bomb.
Claims (7)
1. The inert filler of the simulated explosive for step-by-step explosive loading is characterized by comprising the following raw materials in percentage by weight:
65-75% of ammonium sulfate, 20-30% of aluminum powder, 3-5% of fluororubber, 0.5-1% of diisooctyl sebacate, 0.1-0.5% of lecithin, 0.5-1% of composite wax and 0.1-0.3% of colloidal graphite.
2. The inert filler of the simulated explosive for the step-by-step explosive loading according to claim 1, which is characterized by comprising the following raw materials in percentage by weight:
65% of ammonium sulfate, 30% of aluminum powder, 3% of fluororubber, 1% of diisooctyl sebacate, 0.2% of lecithin, 0.5% of composite wax and 0.3% of colloidal graphite.
3. The inert filler of the simulated explosive for the step-by-step explosive loading according to claim 1, which is characterized by comprising the following raw materials in percentage by weight:
68% of ammonium sulfate, 27.8% of aluminum powder, 3% of fluororubber, 0.5% of diisooctyl sebacate, 0.1% of lecithin, 0.5% of composite wax and 0.1% of colloidal graphite.
4. The inert filler of the simulated explosive for the step-by-step explosive loading according to claim 1, which is characterized by comprising the following raw materials in percentage by weight:
70% of ammonium sulfate, 24% of aluminum powder, 4% of fluororubber, 0.7% of diisooctyl sebacate, 0.3% of lecithin, 0.8% of composite wax and 0.2% of colloidal graphite.
5. The inert filler of the simulated explosive for the step-by-step explosive loading according to claim 1, which is characterized by comprising the following raw materials in percentage by weight:
73% of ammonium sulfate, 20% of aluminum powder, 5% of fluororubber, 0.8% of diisooctyl sebacate, 0.4% of lecithin, 0.6% of composite wax and 0.2% of colloidal graphite.
6. The inert filler of the simulated explosive for the step-by-step explosive loading according to claim 1, which is characterized by comprising the following raw materials in percentage by weight:
75% of ammonium sulfate, 17.2% of aluminum powder, 5% of fluororubber, 1% of diisooctyl sebacate, 0.5% of lecithin, 1% of composite wax and 0.3% of colloidal graphite.
7. An inert filler for a simulated explosive for a fractional compression charge as claimed in any of claims 1 to 6 wherein the composite wax comprises 75% microcrystalline wax, 15% petroleum jelly, 10% gum rosin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111194782.3A CN113979815B (en) | 2021-10-14 | 2021-10-14 | Inert filler of simulated explosive for step-by-step explosive charging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111194782.3A CN113979815B (en) | 2021-10-14 | 2021-10-14 | Inert filler of simulated explosive for step-by-step explosive charging |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113979815A true CN113979815A (en) | 2022-01-28 |
| CN113979815B CN113979815B (en) | 2023-04-07 |
Family
ID=79738428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111194782.3A Active CN113979815B (en) | 2021-10-14 | 2021-10-14 | Inert filler of simulated explosive for step-by-step explosive charging |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113979815B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5756006A (en) * | 1994-12-07 | 1998-05-26 | The United States Of America As Represented By The Secretary Of The Navy | Inert simulants for energetic materials |
| US7854811B1 (en) * | 2009-07-11 | 2010-12-21 | Kemzecur, Inc. | Mouldable plastic explosives and inert simulants for mouldable plastic explosives |
| CN109206280A (en) * | 2018-03-22 | 2019-01-15 | 湖北航天化学技术研究所 | A kind of anti high overload pressed explosives and preparation method thereof |
| CN112255079A (en) * | 2020-09-23 | 2021-01-22 | 西安近代化学研究所 | Inert simulation explosive with hot spot effect, preparation method and application |
-
2021
- 2021-10-14 CN CN202111194782.3A patent/CN113979815B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5756006A (en) * | 1994-12-07 | 1998-05-26 | The United States Of America As Represented By The Secretary Of The Navy | Inert simulants for energetic materials |
| US7854811B1 (en) * | 2009-07-11 | 2010-12-21 | Kemzecur, Inc. | Mouldable plastic explosives and inert simulants for mouldable plastic explosives |
| CN109206280A (en) * | 2018-03-22 | 2019-01-15 | 湖北航天化学技术研究所 | A kind of anti high overload pressed explosives and preparation method thereof |
| CN112255079A (en) * | 2020-09-23 | 2021-01-22 | 西安近代化学研究所 | Inert simulation explosive with hot spot effect, preparation method and application |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113979815B (en) | 2023-04-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114133305B (en) | Preparation method of inert filler of simulated explosive for step-by-step explosive loading | |
| CN105330495A (en) | Coated priming composition-free nail-shooting ammunition pellet formula and preparation method thereof | |
| US5565150A (en) | Energetic materials processing technique | |
| CN103073369A (en) | Casting-curing insensitive high-explosion-heat explosive and preparation method thereof | |
| CN103145512B (en) | High-gurney-energy low-vulnerability PBX explosive and preparation method thereof | |
| CN113979815B (en) | Inert filler of simulated explosive for step-by-step explosive charging | |
| JP2013514962A (en) | Malleable solid explosive and method of obtaining the same | |
| US3423259A (en) | Ammunition priming composition of dry particulate ingredients with karaya gum binder | |
| CN109206280A (en) | A kind of anti high overload pressed explosives and preparation method thereof | |
| CN107556145A (en) | A kind of method of industrial emulsion explosive defective work processing | |
| KR101182328B1 (en) | High density and high performance plastic bonded explosive and the fabrication method thereof | |
| CN102584104A (en) | General blasting blockage stemming and preparation method thereof | |
| US2593637A (en) | Loaded cartridge with frangible projectile | |
| CN108456123A (en) | High-energy agent preparation method, high-energy agent and pyrotechnic composition and its firecracker Safe production method | |
| CN113929546B (en) | Safe nail shooting tablet and preparation method thereof | |
| US3317361A (en) | Flexible plasticized explosive of cyclonitramine and nitrocellose and process therefor | |
| RU2607206C2 (en) | Method of producing plastic explosive compound | |
| US20040094250A1 (en) | Composite propellant compositions | |
| Joshi et al. | Studies on rheological properties and process parameters of TNT based castable high explosive compositions | |
| CN110343019A (en) | Firework gunpowder deterrent, firework gunpowder and preparation method thereof | |
| US3009386A (en) | Methods of preparing compressed explosive charges | |
| US2798799A (en) | Smoke-producing composition | |
| RU2238255C2 (en) | Inert composition for testing press molds and preparing model charges | |
| RU2484076C2 (en) | Pyrotechnical ignition-blow-out and ignition-rupture composition | |
| CN114456020B (en) | Transition layer material, application and process for improving internal stress of warhead charge |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |