CN113137893B - Energy-containing special shaped charge cover cutter structure - Google Patents
Energy-containing special shaped charge cover cutter structure Download PDFInfo
- Publication number
- CN113137893B CN113137893B CN202110552541.5A CN202110552541A CN113137893B CN 113137893 B CN113137893 B CN 113137893B CN 202110552541 A CN202110552541 A CN 202110552541A CN 113137893 B CN113137893 B CN 113137893B
- Authority
- CN
- China
- Prior art keywords
- energy
- shell
- gathering cover
- cutting body
- shaped
- 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.)
- Active
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B3/00—Blasting cartridges, i.e. case and explosive
- F42B3/08—Blasting cartridges, i.e. case and explosive with cavities in the charge, e.g. hollow-charge blasting cartridges
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B1/00—Explosive charges characterised by form or shape but not dependent on shape of container
- F42B1/02—Shaped or hollow charges
- F42B1/028—Shaped or hollow charges characterised by the form of the liner
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B1/00—Explosive charges characterised by form or shape but not dependent on shape of container
- F42B1/02—Shaped or hollow charges
- F42B1/032—Shaped or hollow charges characterised by the material of the liner
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D3/00—Particular applications of blasting techniques
Abstract
The invention provides an energy-containing special-shaped charge liner cutter structure which comprises a shell, an explosive expanding column, an explosive expanding chamber, a detonator, a wedge-shaped charge, an energy-gathering cover, a prefabricated cutting body and an energy-containing block, wherein the shell is of a semi-closed rectangular structure, the upper part of the shell is in a closed form, the bottom of the shell is downward opened, the energy-gathering cover is assembled on the inner side wall of the shell and downward forms a cavity with the opened part of the shell, the prefabricated cutting body is arranged in the middle position of the top of the energy-gathering cover and is assembled and molded with the energy-gathering cover in an integral casting molding or fixed connection mode, the energy-containing block is flaky and faces to the cavity, and the energy-containing block is filled between the energy-gathering cover and the prefabricated cutting body. The invention has the structural advantages that: the prefabricated cutting body can obviously improve penetration depth, and the embedded energy-containing block uses the energy-gathering cover as a buffer material, so that high-pressure impact of explosive detonation pressure is obviously reduced, the quality or energy loss in the forming process of the energy-gathering cutting body is reduced, and the cutter-formed energy-gathering penetration body has cutting and explosion damage capabilities.
Description
Technical Field
The invention belongs to the field of engineering blasting and special blasting, and particularly relates to an energy-containing special shaped charge liner cutter structure.
Background
The Linear Shaped Charge Cutter (LSCC) is a device which utilizes the Shaped Charge energy accumulation effect and adopts a wedge Shaped Charge cover to cut a firm target regularly. Compared with traditional cutting methods such as mechanical cutting, gas cutting and the like, the linear energy-gathering explosion cutting technology has the advantages of high efficiency, high speed, low cost, strong adaptability, simplicity and convenience in operation, safety, reliability, small influence of the environment, wide application range and the like, has strong military and civil values, and is widely applied to the fields of space navigation, military, emergency rescue and civil blasting. At present, the target attributes of the energy-gathering cutter can be divided into metal targets (such as metal plates, shells, special-shaped structures and the like of steel plates, steel cables, steel pipes and the like) and non-metal targets (such as concrete, rock soil, high-strength organic coatings and the like). Among the destructive effects on various targets, the penetration capability of the linear energy-gathering cutter is an important index for measuring the performance of the cutter, and the main factor influencing the cutting capability of the cutter is the length and the speed of the formed energy-gathering penetration body effectively acting on the target after the cutter is detonated. At present, various national scholars mainly improve penetration capability of the cutter by adjusting the charging type, charging structure, liner material, liner structure, explosive height and other modes of the cutter, and reduce charging amount, save cost and reduce the influence of explosion on the environment as much as possible under the condition of meeting certain cutting capability. In the text of numerical research on influence of linear shaped charge liner materials and structural parameters thereof on forming performance, an orthogonal optimization method is adopted to optimally design main parameters of charge of a certain linear shaped charge cutter, so that the respective optimal parameter combination of the linear shaped charge cutters is obtained, and the optimal parameter scheme of the linear shaped charge cutters is obtained. In the text of the impact of the initiation mode on the formation of linear energy-gathered charge jet, the law of the impact of three initiation modes, namely line initiation, end point initiation and end surface initiation, on the performance of a linear energy-gathered charge forming cutting body is researched, and the initiation and cutter arrangement mode for efficiently cutting a steel plate target is provided.
It can be seen from the above studies that, on the basis of the existing technical means, the speed of obtaining the cutter-shaped energy-gathering penetration body is continuously improved, the length of the cutter-shaped cutting body is continuously increased, and the cutting capability of the cutter is continuously improved mainly by continuously optimizing and designing the cutter parameters (including selecting a high-quality metal shaped charge cover, high-energy explosive, special-shaped charge, detonation mode and the like). However, when the length of the penetration body is increased, the liner with limited quality is necessarily stretched excessively, and when the speed of forming the cutting body is increased, the head-tail speed difference of the cutting body is necessarily increased, so that the stable forming penetration body is easily broken or even broken into a plurality of parts, and the cutting capability of a cutter is influenced. In addition, the cutter has a single damage mode to the target, and the application range is limited.
Disclosure of Invention
Aiming at the problems of limited cutting capability of the cutter on a target, single damage and destruction mode and limited application range in the prior art, the invention provides an energy-containing special-shaped liner cutter structure which is simple to manufacture and strong in practicability.
In order to achieve the purpose, the invention provides the following technical scheme: the invention provides an energy-containing special-shaped charge liner cutter structure which comprises a shell, an explosive expanding column, an explosive expanding chamber, a detonator, a wedge-shaped charge, an energy-gathering cover, a prefabricated cutting body and an energy-containing block, wherein the shell is of a semi-closed rectangular structure, the upper part of the shell is in a closed form, the bottom of the shell is downward opened, the energy-gathering cover is assembled on the inner side wall of the shell and downward forms a cavity with the opened part of the shell, the prefabricated cutting body is arranged in the middle position of the top of the energy-gathering cover and is assembled and molded with the energy-gathering cover in an integral casting molding or fixed connection mode, the energy-containing block is flaky and faces to the cavity, and the energy-containing block is filled between the energy-gathering cover and the prefabricated cutting body.
Further, the cross-sectional shape of the side of the precut facing the cavity includes a concave type, a linear type, and a convex type.
Furthermore, the width of the root part of the prefabricated cutting body facing the cavity is 0.8-1.5 times of the thickness of the liner, and the length of the prefabricated cutting body is 0.8-1 times of the height of the liner and does not exceed the height of the cavity.
Further, the basic configuration of the energy-containing block is a flat strip-shaped structure, and the distance between the vertex of the energy-containing block and the vertex of the energy-collecting cover is 0.01 time of the width of the wedge-shaped charge.
Further, the prefabricated cutting body and the energy gathering cover are formed in an integral casting or assembling machining mode.
Furthermore, the prefabricated cutting body and the energy-gathering cover are made of different materials, the prefabricated cutting body is made of metal with high density and strong penetration capability, and the energy-gathering cover is made of metal with good ductility.
Furthermore, the energy-containing block is formed by filling the energy-containing material between the prefabricated cutting body and the energy-collecting cover through a reserved pouring space and a pouring hole during the processing of the energy-collecting cover.
Further, the basic configuration of the energy-gathering cover is wedge-shaped, circular arc-shaped, elliptic arc-shaped or hyperbolic; the taper angle of the energy-gathering cover ranges from alpha to 60 degrees to 100 degrees, and the wall thickness ranges from delta to 0.06 to 0.10 times the width of the wedge-shaped charge.
Furthermore, the two sides of the inner wall of the shell are provided with transverse linear grooves close to the bottom and used for being matched with the energy-gathering cover, the edges of the two sides of the energy-gathering cover are assembled with the shell through the linear grooves of the shell, wedge-shaped charge is formed in a closed space surrounded upwards, the thickness of the shell is 0.01 time of the width of the wedge-shaped charge, and the shell is made of aluminum alloy or stainless steel.
Furthermore, the explosion expanding chamber is in a short pipe shape and is arranged in the top of the wedge-shaped chargeA wall center point, tubular one end disposed within the charge and the other end passing vertically upward through the housing. The size of the explosive expanding chamber is
The inside is filled and is expanded explosive and form and expand the explosive column, expands the built-in detonator jack of explosive column and is used for placing the detonator, and the detonator is 8# detonator.
The energetic special-shaped liner cutter has the structural advantages that: the prefabricated cutter body of the special-shaped liner cutter structure can obviously improve the cutting depth of the cutter, the embedded energy-containing block can fully utilize the self structure of the energy-collecting liner as a buffer material, the high-pressure impact of explosive detonation pressure on the energy-containing block can be obviously reduced, and the quality or energy loss caused by the breakage or advanced reaction of the energy-containing block in the forming process of the energy-collecting cutter body is reduced.
Drawings
FIG. 1 is a schematic view of a cutter structure for an energetic shaped liner;
FIG. 2 is a schematic cross-sectional view of a pre-cut body, wherein (1a) is a pointed shape with both sides concave inwards, (1b) is a conical shape, and (1c) is a pointed elliptical shape;
FIG. 3 is a schematic view of a composite energy-gathering cutter formed by an energy-containing shaped liner cutter structure;
fig. 4 is a schematic view of a conventional cutter-formed shaped energy collector cutter.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
The energy-containing special-shaped charge cover cutter structure comprises a prefabricated cutting body 1, an energy-collecting cover 2, an energy-containing block 3, a wedge-shaped charge 4, an explosive-expanding column 5, an explosive-expanding chamber 6, a detonator 7 and a shell 8.
As shown in fig. 1, the housing 8 is a semi-closed long rectangular structure, the cross section of the upper part of the rectangular structure is in a regular trapezoid shape, the upper part of the housing 8 is in a closed shape, the bottom of the housing is in a downward open shape, and two sides of the inner wall of the housing 8 close to the bottom are provided with transverse linear grooves for matching with the liner 2. The shell 8 can be made of aluminum alloy or stainless steel and is machined in a machining or casting mode, and the thickness of the shell 8 is 0.01 time of the width of the wedge-shaped charge 4.
The basic configuration of the energy-gathering cover 2 is long sheet-shaped, the cross section can be in various forms such as wedge shape, circular arc shape, elliptic arc shape, hyperbolic curve shape and rectangle, the arch part of the sheet-shaped energy-gathering cover is upward when the energy-gathering cover is arranged, the edges of two sides of the energy-gathering cover 2 are provided with convex blocks which can be matched with the linear grooves of the shell 8, the enclosed space enclosed by the arch part of the energy-gathering cover 2 and the shell 8 is upward forms the wedge-shaped charge 4, and a cavity is formed between the arch part of the energy-gathering cover 2 and the open part of the shell 8 downward.
The wedge-shaped charge 4 is filled with main charge, the main charge can be selected from high-energy explosive such as B explosive, TNT and the like, the explosive detonation velocity can reach 7000-8500m/s, and the charge density needs to reach 1.7-1.9g/cm 3 。
The basic parameters and value ranges of the energy-gathering cover 2 are as follows:
(1) the energy-gathering cover 2 is made of a liner material which has high density, good plasticity and is not easy to vaporize at high temperature, and mainly comprises Cu, Fe, W, Ta and the like, or an alloy material such as tungsten-copper alloy, tungsten-iron-nickel alloy and the like;
(2) the cutter structure generally adopts a wedge-shaped cover, and for the wedge-shaped cover, a small wedge angle and a large wedge angle exist, and the value range of the cone angle of the energy-gathering cover 2 is 60-100 degrees;
(3) the optimum wall thickness of the concentrator cap 2 varies with the concentrator cap material, cone angle, diameter, and presence or absence of the outer shell. In general, the optimum wall thickness of the concentrator cap 2 increases with decreasing specific gravity of the cap material, with increasing cone angle of the cap, with increasing bore diameter of the cap, and with increasing thickness of the housing. The value range of the wall thickness of the energy-gathering cover 2 is 0.06-0.10 times of the width of the wedge-shaped charge 4 as the suggested value delta;
(4) the energy-gathering cover 2 is machined by adopting a mechanical manufacturing or casting mode.
The prefabricated cutting body 1 is arranged in the middle of the bottom of the energy-gathering cover 2 and is in a sheet shape, the transverse length of the prefabricated cutting body is the same as that of the shaped charge cover 2, and the energy-gathering cover 2 and the prefabricated cutting body 1 can be formed in an integral casting mode. Or can be manufactured separately and assembled and molded in a fixed connection mode.
When a fixed connection mode is adopted, a notch with an inverted triangle-shaped cross section is reserved in the middle position of the bottom of the energy-gathering cover 2 and is used for being assembled with the prefabricated cutting body 1. One side of the sheet edge of the prefabricated cutting body 1 is vertically connected with the energy-gathering cover 2, the cross section of the connection part is in a regular triangle shape, and the connection part is embedded into the gap of the energy-gathering cover 2; the other side edge faces the cavity of the housing 8. No matter the processing mode of integrated molding or the fixed connection mode, the shape of the cross section of one side of the prefabricated cutting body 1 facing the cavity comprises three types, specifically: concave type, linear type, convex type.
The head of the concave prefabricated cutting body is sharp, the contact area of the cutting body and a target is small when the cutting body initially acts, and the cutting capacity is strong. The cutting capability of the prefabricated cutting body is further improved by matching and selecting the high-density material, and the cutting tool is suitable for cutting a small blasting notch aiming at high-strength and high-hardness targets; the head of the externally convex prefabricated cutter is blunt and thick, so that the cutting operation of a type of generating a large blasting notch aiming at a target is suitable; the linear type prefabricated cutting body is simple in machining and manufacturing process, and can effectively finish rapid and high-quality cutting aiming at most common targets.
The width of the root part of the prefabricated cutting body 1 facing to one side of the cavity is 0.8-1.5 times of the wall thickness of the liner 2, and the width value is matched with the width of the head part of the cutter forming energy gathering penetration body; the height of the preformed cutter 1 towards the cavity is 0.8-1 times of the arch-shaped height of the liner 2, and the height does not exceed the cavity height of the shell 8 so as not to influence the height of the shaped charge structure.
The prefabricated cutting body 1 and the energy-gathering cover 2 can be made of the same material by adopting an integral casting mode, and can also be made of different materials by adopting a mechanical assembly mode. When the two materials are different, the material of the prefabricated cutting body 1 is metal with high density and strong penetration capability, such as metal tantalum; the energy gathering cover 2 is made of metal with good ductility such as red copper and industrial pure iron.
When the prefabricated cutting body 1 and the energy-gathering cover 2 are machined and molded in an integral casting mode, a pouring space and a pouring hole for an energy-containing block 3 material are reserved on the energy-gathering cover 2, and the energy-containing block 3 is filled between the prefabricated cutting body 1 and the energy-gathering cover 2 through the pouring hole after being melted. When the prefabricated cutting body 1 and the energy-gathering cover 2 are machined and formed in a mechanical assembly mode, the energy-containing block 3 is machined and formed by solid machining and is assembled and machined and formed together with the prefabricated cutting body 1 and the energy-gathering cover 2.
The energy-containing block 3 is made of energy-containing materials, the energy-containing block 3 can be made of Zr-based amorphous alloy, PTFE/Al active materials or inert explosives, is filled in the middle of the prefabricated cutting body 1 and the energy-gathering cover 2 in an internally embedded mode, and is of a flat strip-shaped structure in basic configuration. The distance between the top point of the energy-gathering cover 2 and the top point of the energy-containing block 3, namely the nearest distance between the explosive and the energy-containing block is 0.01 time of the charging width of the wedge-shaped charge 4, and the distance is preferably selected so that the energy-containing block 3 cannot be impacted by shock waves generated after the explosive is detonated. At the moment, the energy-containing block 3 fully utilizes the self structure of the energy-collecting cover 2 as a buffer material, so that the high-pressure impact of explosive detonation pressure on the energy-containing material can be obviously reduced, and the quality or energy loss of the energy-containing material caused by crushing or advanced reaction in the forming process of the energy-collecting cutting body is reduced.
The explosive expanding chamber 6 is in a short pipe shape and is arranged at the central point of the inner wall at the top of the wedge-shaped explosive charge 4, one end of the pipe shape is arranged in the explosive charge 3, and the other end of the pipe shape vertically penetrates through the shell 8. The size of the explosive expanding chamber 6 is
The inside is filled with an explosive expanding agent to form an explosive expanding agent column 5, the explosive expanding agent can be specially bent, passivated hexogen, Taien or other explosive with higher sensitivity, and the explosive is more sensitive to the percussion impulse of the detonator 7 than the explosive of the main charge. A detonator jack is arranged in the expanding explosive column 5 and used for placing a detonator 7, and the detonator 7 is an 8# detonator.
The cutting capability of a common cutter structure is extremely sensitive to the explosion height, the formed energy gathering penetration body is easy to break when the explosion height is too high, and the penetration body cannot be completely formed when the explosion height is too low, and both the two conditions obviously influence the cutting capability of the cutter. The value range of the burst height of the cutter structure of the energy-containing special-shaped liner designed by the invention is 2cm-5cm of a recommended value.
The action process after the initiation of the energetic special-shaped liner charging structure is as follows:
the energy-containing special-shaped charge liner cutter structure adopts an end single-point center detonation mode, after the detonator 7 is detonated, the explosive-expanding column 5 is firstly stimulated to detonate and detonate the main charge, and the main charge can be regarded as being detonated along the center point of the end part of the wedge-shaped charge 4. After detonation of the main charge, a continuous detonation wave is generated along the wedge-shaped charge 4, propagating towards the cavity and towards the edge position of the energy-gathering cover 2, respectively.
The continuous detonation wave sequentially acts on the top of the energy-gathering cover 2 and the top of the energy-containing block 3 when propagating towards the cavity direction, so that the energy-gathering cover 2 is turned and formed, the energy-gathering cover 2 with a certain thickness can be used as a natural buffer material to greatly reduce the high-speed impact of the detonation wave on the energy-containing block 3, and the quality or energy loss of the energy-containing material caused by crushing or advanced reaction in the explosive forming process is reduced. When the continuous detonation waves are propagated towards the edge position of the liner, the continuous detonation waves sequentially act on the energy-containing block 3 and the energy-collecting cover 2 from the top point to the edge position according to the action time sequence of the detonation waves, and the head and the tail of the energy-collecting cutting body are correspondingly formed.
In the forming process of the energy-gathered cutting body, the prefabricated cutting body 1 is used as a main body structure of the cutting effect of the cutter, the appearance characteristics are basically not changed, the energy-gathered cover 2 covers the energy-containing block 3 to synchronously turn and deform to respectively form the energy-gathered cutting body and the energy-containing body which are close to the prefabricated cutting body 1, wherein the energy-containing block 3 is densely filled between the prefabricated cutting body 1 and the cutting body formed by the energy-gathered cover, when the energy-gathered cutting body acts with the target, the target is firstly cut at high speed by the prefabricated cutting body 1 to form an initial cutting gap, the prefabricated cutting body 1 is abraded along with the continuous increase of the cutting depth, at the moment, the energy-containing material internally covered inside the prefabricated cutting body starts to act on the target and generates the established energy-containing material damage effect, and therefore the secondary damage effect is generated on the target.
While the invention has been described with reference to specific preferred embodiments, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the following claims. Those skilled in the art will appreciate that the invention may be practiced without these specific details.
Claims (7)
1. The utility model provides an energetic abnormal shape shaped charge cover cutter structure which characterized in that: comprises a shell, an explosive expanding column, an explosive expanding chamber, a detonator, a wedge-shaped charge, an energy-gathering cover, a prefabricated cutting body and an energy-containing block body; the shell is of a semi-closed rectangular structure, the upper part of the shell is in a closed form, and the bottom of the shell is downward open; the energy-gathering cover is assembled on the inner side wall of the shell, a cavity is formed downwards with the open part of the shell, the prefabricated cutting body is arranged in the middle of the top of the energy-gathering cover, is assembled and molded with the energy-gathering cover in a fixed connection mode, is in a sheet shape and faces to the cavity, the width of the root of the joint of the prefabricated cutting body and the energy-gathering cover is 0.8-1.5 times of the thickness of the energy-gathering cover, and the height of the prefabricated cutting body is 0.8-1 times of the height of the energy-gathering cover and is not more than the height of the cavity; the energy-containing block is filled between the energy-collecting cover and the prefabricated cutting body; the basic configuration of the energy-containing block is a flat strip-shaped structure, the length of the energy-containing block is equal to that of the energy-gathering cover, and the distance between the vertex of the energy-containing block and the vertex of the energy-gathering cover is 0.01 time of the charging width.
2. The energetic shaped liner cutter structure of claim 1, wherein: the shape of the side, facing the cross section of the cavity, of the prefabricated cutting body is concave, linear or convex.
3. The energetic shaped liner cutter structure of claim 1, wherein: the prefabricated cutting body and the energy-gathering cover are made of different materials, the prefabricated cutting body is made of metal with high density and strong penetration capability, and the energy-gathering cover is made of metal with good ductility.
4. The energetic shaped liner cutter structure of claim 3, wherein: the energy-containing block is formed by filling the energy-containing material between the prefabricated cutting body and the energy-collecting cover through a reserved pouring space and a pouring hole when the energy-collecting cover is processed.
5. The energetic shaped liner cutter structure according to any one of claims 1 to 4, wherein: the basic configuration of the energy-gathering cover is wedge-shaped, circular arc-shaped or hyperbolic; the taper angle of the energy-gathering cover ranges from alpha =60 degrees to 100 degrees, and the wall thickness ranges from delta 0.06 times to 0.10 times the width of the wedge-shaped charge.
6. The energetic shaped liner cutter structure according to any one of claims 1 to 4, wherein: the inner wall of the shell is provided with a horizontal straight line groove at the position close to the bottom, the horizontal straight line groove is used for being matched with the energy gathering cover, the edges of two sides of the energy gathering cover are assembled with the shell through the straight line groove of the shell, a wedge-shaped charge is formed in a closed space surrounded upwards, the thickness of the shell is 0.01 time of the width of the wedge-shaped charge, and the shell is made of aluminum alloy or stainless steel.
7. The energetic shaped liner cutter structure according to any one of claims 1 to 4, wherein: the explosion-expanding explosive chamber is in a short pipe shape and is arranged at the center of the inner wall of the top of the wedge-shaped explosive charge, one end of the pipe shape is arranged in the explosive charge, and the other end of the pipe shape vertically penetrates through the shell upwards; the size of the explosive expanding chamber is that explosive expanding agent is filled inside to form an explosive expanding column, a detonator jack is arranged in the explosive expanding column and is used for placing a detonator, and the detonator is an 8# detonator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110552541.5A CN113137893B (en) | 2021-05-20 | 2021-05-20 | Energy-containing special shaped charge cover cutter structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110552541.5A CN113137893B (en) | 2021-05-20 | 2021-05-20 | Energy-containing special shaped charge cover cutter structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113137893A CN113137893A (en) | 2021-07-20 |
| CN113137893B true CN113137893B (en) | 2022-08-02 |
Family
ID=76817706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110552541.5A Active CN113137893B (en) | 2021-05-20 | 2021-05-20 | Energy-containing special shaped charge cover cutter structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113137893B (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3116934C1 (en) * | 1981-04-29 | 1986-01-09 | Messerschmitt-Bölkow-Blohm GmbH, 8012 Ottobrunn | Jet-forming lining for shaped charges or cutting charges |
| CA1316393C (en) * | 1987-06-22 | 1993-04-20 | Roy Earl Gabriel | Explosive entry and cutting device and a method of explosive entry and cutting |
| GB0425203D0 (en) * | 2004-11-16 | 2004-12-15 | Qinetiq Ltd | Improvements in and relating to oil well perforators |
| US10209040B2 (en) * | 2014-04-18 | 2019-02-19 | Halliburton Energy Services, Inc. | Shaped charge having a radial momentum balanced liner |
| US10156110B2 (en) * | 2014-04-23 | 2018-12-18 | Halliburton Energy Services, Inc. | Jet cutter having a truncated liner at apex |
| US11506029B2 (en) * | 2017-12-12 | 2022-11-22 | Halliburton Energy Services, Inc. | Limited penetration shaped charge |
| CN109211037B (en) * | 2018-09-11 | 2020-08-07 | 中国矿业大学 | Underwater explosive cutter assembly and underwater explosive cutting method |
-
2021
- 2021-05-20 CN CN202110552541.5A patent/CN113137893B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN113137893A (en) | 2021-07-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10458761B2 (en) | Fluted linear shaped charge with simultaneous initiation | |
| CN112393654B (en) | Two-way energy-gathering blasting charge structure of joint-cutting pipe | |
| CN110823007B (en) | Dual gain warhead | |
| CN103983153A (en) | Case circular discontinuous energy concentrating jet flow cracker | |
| CN108731550B (en) | Super energy-gathering linear cutter | |
| US5415101A (en) | Shaped explosive charge, a method of blasting using the shaped explosive charge and a kit to make it | |
| CA2182409A1 (en) | Cascade shaped charge | |
| EP3387365B1 (en) | Multiple explosively formed projectiles liner fabricated by additive manufacturing | |
| CN111255421A (en) | Compact oil and gas reservoir perforating bullet | |
| CN113137893B (en) | Energy-containing special shaped charge cover cutter structure | |
| CN216308778U (en) | Energy-containing special shaped charge cover cutter structure | |
| CN104501662A (en) | Spiral energy-gathering type slotting explosive column casing | |
| CN204268979U (en) | A kind of hoop energy collecting type powder column housing | |
| US3176613A (en) | Shaped explosive charge | |
| US6983698B1 (en) | Shaped charge explosive device and method of making same | |
| CN208476097U (en) | Complex reflex cumulative and buffering energy dissipator | |
| CN201687394U (en) | Secondary slotting drill | |
| CN113137894A (en) | Energy-containing composite shaped charge liner cutter structure | |
| CN102562010A (en) | Shaped charge liner perforating bullet | |
| CN114111459B (en) | Annular energy-gathering blasting shell and application method | |
| CN212109777U (en) | Mounting structure for multipoint energy-gathering micro-perforation type blasting in blast hole and energy-gathering cover used by mounting structure | |
| CN215413411U (en) | Energy-containing composite shaped charge liner cutter structure | |
| CN204421760U (en) | A kind of spiral energy collecting type slotting powder column housing | |
| CN113188393A (en) | Prefabricated cutting body gathers can charge structure | |
| CN213041105U (en) | Novel reduce blasting root end rate device |
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 |