CN118143423A - Thermite grain bidirectional combustion cutting device and thermite grain bidirectional combustion cutting method - Google Patents
Thermite grain bidirectional combustion cutting device and thermite grain bidirectional combustion cutting method Download PDFInfo
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- CN118143423A CN118143423A CN202410361015.4A CN202410361015A CN118143423A CN 118143423 A CN118143423 A CN 118143423A CN 202410361015 A CN202410361015 A CN 202410361015A CN 118143423 A CN118143423 A CN 118143423A
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- 238000002485 combustion reaction Methods 0.000 title claims abstract description 113
- 239000003832 thermite Substances 0.000 title claims abstract description 92
- 238000005520 cutting process Methods 0.000 title claims abstract description 51
- 230000002457 bidirectional effect Effects 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims abstract description 15
- 239000003814 drug Substances 0.000 claims abstract description 88
- 239000000843 powder Substances 0.000 claims abstract description 53
- 238000003860 storage Methods 0.000 claims abstract description 13
- 238000003825 pressing Methods 0.000 claims abstract description 6
- 229920006324 polyoxymethylene Polymers 0.000 claims description 20
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 12
- 239000004800 polyvinyl chloride Substances 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 9
- 239000011230 binding agent Substances 0.000 claims description 8
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 7
- 239000005011 phenolic resin Substances 0.000 claims description 7
- 229920001568 phenolic resin Polymers 0.000 claims description 7
- XECAHXYUAAWDEL-UHFFFAOYSA-N acrylonitrile butadiene styrene Chemical compound C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 claims description 6
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 claims description 6
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 claims description 6
- 229920006351 engineering plastic Polymers 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- 238000012216 screening Methods 0.000 claims description 5
- 238000000465 moulding Methods 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 239000011812 mixed powder Substances 0.000 claims description 3
- 239000000126 substance Substances 0.000 abstract description 3
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- -1 polyoxymethylene Polymers 0.000 description 4
- 229930040373 Paraformaldehyde Natural products 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000006855 networking Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000005474 detonation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000006479 redox reaction Methods 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
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- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Combustion Methods Of Internal-Combustion Engines (AREA)
Abstract
The invention discloses a thermite grain bidirectional combustion cutting device and method in the technical field of chemical combustion cutting. The thermite grain bidirectional combustion cutting device comprises a shrinkage nozzle, a combustion medicine loading chamber in threaded connection with the shrinkage nozzle, an ignition medicine chamber in threaded connection with the combustion medicine loading chamber, and a thermite grain placed in the combustion medicine loading chamber. According to the thermite grain bidirectional combustion cutting device, the pressing formable thermite grain is prepared by adding the thermite grain shell, so that the problem that the conventional thermite powder is fragile and easy to crack after being pressed and formed can be effectively avoided, the storage performance of the thermite grain bidirectional combustion cutting device is improved, and the thermite grain bidirectional combustion cutting device can be prepared in advance, is effectively stored and is quickly used; the thermite grain has a central hole structure, so that the combustion performance can be improved; the unidirectional cutting is expanded into bidirectional cutting, bidirectional simultaneous ignition and simultaneous combustion cutting are performed, and the application range and the use efficiency are improved.
Description
Technical Field
The invention relates to the technical field of chemical combustion cutting, in particular to a bidirectional combustion cutting device and method for thermite grains.
Background
The thermite is used as a high-energy energetic material, aluminum powder is used as main metal fuel, and various substances with oxidability and other various auxiliary agents are matched, so that a great amount of heat is released through severe oxidation-reduction reaction, and compared with other energetic materials, the thermite has the advantages of high economic benefit, strong stability, self-sustained property, simple preparation method and the like. The temperature of the combustion flame is higher than the melting point of steel, and the flame is widely applied in the fields of ammunition destruction, combustion cutting, propulsion ignition and the like. Combustion cutting is used in many rescue operations as a way to quickly break up obstacles. The high-temperature flame generated by the internal charging can quickly cut and break steel barriers, such as steel members, door locks, wire meshes and the like, and is more efficient compared with the traditional mechanical breaking. However, the existing thermite finished products have the problems that the finished products cannot be pressed and formed into grains with high brittleness and the like, and the finished products mainly exist in the form of powder in specific use, so that the storage, transportation, modularization use and the like of the thermite are extremely difficult. Aiming at the formation of the thermite, a great deal of research has been developed in China at present, resin, paraffin or phenolic resin and the like are introduced into the thermite to realize the compression formation of the thermite powder, but after inert binder is added, the overall combustion performance of the thermite can be influenced. The addition of a binder capable of participating in the thermit reaction is a current common practice, but the problem of storage caused by high brittleness of the grain is difficult to solve; the solid thermite grain has poor combustion performance and is not beneficial to the circulation of combustion air flow; the combustion cutting technology is mostly unidirectional cutting at present, and the cutting efficiency is slower when facing the wire netting generally composed of multiple layers and steel bar networking.
Disclosure of Invention
In order to solve the problems, the invention aims to provide a bidirectional combustion cutting device and a bidirectional combustion cutting method for thermite grains, which solve the technical problems that most thermite charges are in powder form, most thermite charges cannot be pressed and formed or are relatively high in brittleness after being pressed and formed, the thermite charges are fragile and are not beneficial to storage and rapid use, most of combustion cutting devices are in unidirectional combustion cutting, and the cutting efficiency is relatively low; the thermite grain has a central hole structure, so that the combustion performance can be improved; the unidirectional cutting is expanded into bidirectional cutting, bidirectional simultaneous ignition and simultaneous combustion cutting are performed, and the application range and the use efficiency are improved.
In order to achieve the above object, the technical scheme of the present invention is as follows:
the invention provides a thermite grain bidirectional combustion cutting device which comprises a shrinkage nozzle, a combustion medicine loading chamber in threaded connection with the shrinkage nozzle, an ignition medicine chamber in threaded connection with the combustion medicine loading chamber, and a thermite grain placed in the combustion medicine loading chamber, wherein the shrinkage nozzle is provided with a plurality of nozzles;
The shrinkage spout includes the first shrinkage spout of left end and the second shrinkage spout of right-hand member, the burning charge room include with first burning charge room of first shrinkage spout threaded connection and with second burning charge room of second shrinkage spout threaded connection, the ignition charge room include with first burning charge room threaded connection's supplementary charge room of first burning charge room, second and ignition charge apotheca, ignition charge apotheca is equipped with wire hole A and wire hole B, the thermite grain includes shell body and inside powder charge.
Further, one end of the first shrinkage spout and one end of the second shrinkage spout are both spouts, and the other end of the first shrinkage spout is an internal thread end.
Further, the first combustion medicine loading chamber and the second combustion medicine loading chamber are both cylindrical.
Furthermore, the material of the shrinkage nozzle, the combustion medicine loading chamber and the ignition medicine chamber is one of PVC polyvinyl chloride, phenolic resin, ABS engineering plastic and POM polyformaldehyde.
Further, the wire guide hole A is plugged into a first wire, the wire guide hole B is plugged into a second wire, and the first wire and the second wire are respectively connected with a power supply.
Further, the number of thermite grain is a plurality of, the thermite grain is placed in the first burning medicine loading chamber respectively in the second burning medicine loading chamber, the material of shell body is one of PVC polyvinyl chloride, phenolic resin, ABS engineering plastics, POM polyformaldehyde, inside powder charge is cylindricly, the center of inside powder charge is equipped with central through-hole.
The invention also provides a bidirectional combustion cutting method for the thermite grain, which comprises the following steps:
s1, preparing thermite grains;
S2, assembling the thermite grain bidirectional combustion cutting device.
Further, the step S1 includes the following steps:
s11, respectively placing thermite powder and binder powder in a mesh screen;
s12, repeatedly screening and mixing thermite powder and binder powder by using a mesh screen to obtain mixed powder for internal charging;
S13, placing the inner charge powder and the outer shell in a die, and cold-pressing and molding the inner charge powder into the outer shell under the conditions of 8MPa and 30s of dwell time.
Further, the step S2 includes the following steps:
s21, assembling the first shrinkage nozzle and the first combustion medicine loading chamber through threaded connection, assembling the first combustion medicine loading chamber and the first auxiliary medicine loading chamber through threaded connection, and placing the two thermite grains into the first combustion medicine loading chamber;
S22, the first lead and the second lead are respectively plugged into an ignition powder chamber through a lead hole A and a lead hole B and are connected with an electric ignition head, and ignition powder is placed in an ignition powder storage chamber;
s23, assembling the second combustion medicine loading chamber and the second auxiliary medicine loading chamber through threaded connection, and putting the two thermite grains into the second combustion medicine loading chamber;
S24, assembling the second shrinkage nozzle and the second combustion medicine loading chamber through threaded connection, and sealing the wire guide A and the wire guide B;
s25, connecting the first wire and the second wire with a power supply respectively.
By adopting the technical scheme, the invention has the following advantages:
The invention provides a bidirectional combustion cutting device and a bidirectional combustion cutting method for thermite grains. In addition, the thermite grain is beneficial to rapid assembly in use; the thermite grain is provided with the central through hole structure, so that the combustion performance can be improved, and in addition, when the thermite grain is subjected to bidirectional combustion cutting, the working efficiency can be improved when the cutting tasks of multi-layer wire meshes and steel bar networking are faced.
Drawings
FIG. 1 is a cross-sectional view of a thermite grain bi-directional combustion cutting device of the present invention;
FIG. 2 is an overall view of the thermite grain bi-directional combustion cutting apparatus of the present invention;
fig. 3 is a block diagram of the thermite grain of the present invention.
Detailed Description
In the following detailed description of the embodiments of the present invention, reference is made to the accompanying drawings, in which it is to be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
The thermite grain bidirectional combustion cutting device is specifically shown in figures 1 and 2, and comprises a shrinkage nozzle 1, a combustion medicine loading chamber 2 in threaded connection with the shrinkage nozzle 1, an ignition medicine chamber 3 in threaded connection with the combustion medicine loading chamber 2 and a thermite grain 4 placed in the combustion medicine loading chamber; the material of the shrinkage spout 1, the combustion medicine loading chamber 2 and the ignition medicine chamber 3 is one of PVC polyvinyl chloride, phenolic resin, ABS engineering plastic and POM polyformaldehyde, wherein the shrinkage spout 1 is a flow guiding device used as combustion flame, one end of the shrinkage spout 1 is a spout, the shape of the spout is circular, the other end of the spout is an internal thread end, and internal threads are cut. The POM polyformaldehyde material comprises a first shrinkage nozzle 1.1 at the left end and a second shrinkage nozzle 1.2 at the right end, wherein the first shrinkage nozzle 1.1 and the second shrinkage nozzle 1.2 at the right end are made of POM polyformaldehyde. The diameter of the spout, here preferably 8mm, the axial dimension of the internally threaded end, here preferably 10mm.
The main storage device of the thermite grain 4 is taken as the combustion medicine loading chamber 2, and comprises a first combustion medicine loading chamber 2.1 in threaded connection with a first shrinkage nozzle 1.1 and a second combustion medicine loading chamber 2.2 in threaded connection with a second shrinkage nozzle 1.2, wherein one end of the combustion medicine loading chamber 2 is an internal thread end, internal threads are cut, the other end of the combustion medicine loading chamber is an external thread end, external threads are cut, and the inside of the combustion medicine loading chamber 2 is cylindrical. POM polyoxymethylene is used as the material of the combustion medicine loading chamber 2. The cross-sectional dimensions of the combustion loading chamber, here preferably the outer cross-sectional diameter is 25mm and the inner cross-sectional diameter is 20mm. The inner cross-sectional diameter needs to be slightly larger than the outer cross-sectional diameter of thermite grain 4. The axial dimension may be designed according to the required loading, and is the axial dimension of the grain, the number of unidirectional grains, the axial dimension of the thermite grain being 25mm, where preferably the number of unidirectional grains is 2, and the axial dimension is 50mm. The axial dimensions of the internally threaded end and the externally threaded end are preferably 7mm for this purpose and 10mm for the externally threaded end.
The ignition medicine chamber 3 comprises a first auxiliary medicine chamber 3.1, a second auxiliary medicine chamber 3.2 and an ignition medicine storage chamber 3.3 which are in threaded connection with the first combustion medicine chamber 2.1, POM polyoxymethylene is used as materials of the first auxiliary medicine chamber 3.1, the second auxiliary medicine chamber 3.2 and the ignition medicine storage chamber 3.3, external threads are cut on the surfaces of the first auxiliary medicine chamber 3.1 and the second auxiliary medicine chamber 3.2 to serve as auxiliary storage devices of the thermite medicine column 4, and the combustion medicine chamber 2 and the auxiliary medicine chamber 3 are in threaded connection to form the storage devices of the thermite medicine column 4 together. The diameters of the inner sections of the first auxiliary medicine loading chamber and the second auxiliary medicine loading chamber are consistent with those of the inner section of the combustion medicine loading chamber, and are preferably 20mm. The axial dimension of the first auxiliary medicine loading chamber and the second auxiliary medicine loading chamber is preferably 9mm.
The ignition charge reservoir 3 is provided with a wire guide a and a wire guide B as passages for connecting external detonating devices. The wire guide A is plugged into the first wire, the wire guide B is plugged into the second wire, and the first wire and the second wire are respectively connected with a power supply.
The dimensions of the internal thread of the constriction nozzle 1, the external thread of the ignition chamber 3, the internal thread of the combustion chamber 2 and the external thread should be exactly matched to each other, more preferably the dimensions here are Φ23×0.1.
The thermite grain 4 is shown in fig. 3 specifically and comprises an outer shell 4.2 and inner charging 4.1, wherein the number of the thermite grains is 4, the thermite grains are respectively placed in a first combustion charging chamber 2.1 and a second combustion charging chamber 2.2, the outer shell is made of one of PVC polyvinyl chloride, phenolic resin, ABS engineering plastic and POM polyoxymethylene, the inner charging 4.1 is cylindrical, a central through hole 4.3 is arranged in the center of the inner charging 4.1, the diameter of the outer section of the outer shell is 19mm, the diameter of the inner section is 16mm, and the axial length is 25mm. The diameter of the outer section is 19mm, and the diameter of the central through hole structure is 5mm.
The bidirectional burning and cutting method for the thermite grain comprises the following steps:
s1, preparing thermite grains;
S1 comprises the following specific steps:
s11, respectively placing thermite powder and binder powder in a mesh screen;
s12, repeatedly screening and mixing thermite powder and binder powder by using a mesh screen to obtain mixed powder for internal charging;
s13, placing the inner charging powder and the outer shell 4.2 in a die, and cold-pressing and molding the inner charging powder into the outer shell under the conditions of 8MPa and 30s of dwell time.
S2, assembling the thermite grain bidirectional combustion cutting device.
S2 comprises the following specific steps:
s21, assembling the first shrinkage nozzle and the first combustion medicine loading chamber through threaded connection, assembling the first combustion medicine loading chamber and the first auxiliary medicine loading chamber through threaded connection, and placing the two thermite grains into the first combustion medicine loading chamber;
S22, the first lead and the second lead are respectively plugged into an ignition powder chamber through a lead hole A and a lead hole B and are connected with an electric ignition head, and ignition powder is placed in an ignition powder storage chamber;
s23, assembling the second combustion medicine loading chamber and the second auxiliary medicine loading chamber through threaded connection, and putting the two thermite grains into the second combustion medicine loading chamber;
S24, assembling the second shrinkage nozzle and the second combustion medicine loading chamber through threaded connection, and sealing the wire guide A and the wire guide B;
s25, connecting the first wire and the second wire with a power supply respectively.
After initiation, energy generated by ignition of the ignition powder in the ignition powder chamber 3 directly ignites the bottom-layer powder charge of the thermite powder column 4 in the first combustion powder charging chamber 2.1 and the second combustion powder charging chamber 2.2 which are in direct contact, and then the thermite powder column 4 realizes self-sustaining combustion to generate high-temperature and high-pressure products which are sprayed outwards through the first shrinkage nozzle 1.1 and the second shrinkage nozzle 1.2 to form bidirectional high-temperature flame.
Examples
S1, preparing thermite grains;
S11, weighing the raw materials according to the following data, wherein 95-100g of thermite powder and 0-5g of polytetrafluoroethylene powder are respectively used.
S12, placing a tray below the mesh screen, placing the raw materials into the mesh screen for screening and mixing, placing the powder collected in the tray into the mesh screen after the screening and mixing are finished, repeating the operation, and uniformly mixing;
S13, collecting the mixed internal charging powder, and weighing the powder, wherein each 15g of the powder is the mass required by one thermite grain;
s14, placing the inner charge powder and the outer shell in a die, and cold-pressing and molding the thermite powder into the outer shell under the conditions of 8MPa and 30S of dwell time.
S2, assembling the thermite grain bidirectional combustion cutting device.
S21, assembling the first shrinkage nozzle and the first combustion medicine loading chamber through threaded connection, assembling the first combustion medicine loading chamber and the first auxiliary medicine loading chamber through threaded connection, and placing the two thermite grains into the first combustion medicine loading chamber;
s22, the first lead and the second lead are plugged into the ignition powder chamber through the lead hole A and the lead hole B respectively and are connected with the electric ignition head, and the ignition powder is placed in the ignition powder storage chamber.
S23, assembling the second combustion medicine loading chamber and the second auxiliary medicine loading chamber through threaded connection, and putting the two thermite grains into the second combustion medicine loading chamber;
S24, assembling the second shrinkage nozzle and the second combustion medicine loading chamber through threaded connection, and sealing the wire guide A and the wire guide B;
And S25, connecting the two wires in the wire guide A and the wire guide B with a power supply.
And pressing down the power switch to perform detonation and observe the combustion phenomenon.
Finally, it is pointed out that while the invention has been described with reference to a specific embodiment thereof, it will be understood by those skilled in the art that the above embodiments are provided for illustration only and not as a definition of the limits of the invention, and various equivalent changes or substitutions may be made without departing from the spirit of the invention, therefore, all changes and modifications to the above embodiments shall fall within the scope of the appended claims.
Claims (9)
1. The thermite grain bidirectional combustion cutting device is characterized by comprising a shrinkage nozzle, a combustion medicine loading chamber in threaded connection with the shrinkage nozzle, an ignition medicine chamber in threaded connection with the combustion medicine loading chamber and a thermite grain placed in the combustion medicine loading chamber;
The shrinkage spout includes the first shrinkage spout of left end and the second shrinkage spout of right-hand member, the burning charge room include with first burning charge room of first shrinkage spout threaded connection and with second burning charge room of second shrinkage spout threaded connection, the ignition charge room include with first burning charge room threaded connection's supplementary charge room of first burning charge room, second and ignition charge apotheca, ignition charge apotheca is equipped with wire hole A and wire hole B, the thermite grain includes shell body and inside powder charge.
2. The thermite grain bi-directional combustion cutting device of claim 1, wherein one end of the first converging nozzle and one end of the second converging nozzle are both nozzles, and the other end of the first converging nozzle and the second converging nozzle are both internal thread ends.
3. The thermite grain bi-directional combustion cutting device of claim 2, wherein the first combustion chamber and the second combustion chamber are cylindrical.
4. The thermite grain bidirectional combustion cutting device according to claim 3, wherein the material of the shrinkage nozzle, the combustion medicine loading chamber and the ignition medicine chamber is one of PVC polyvinyl chloride, phenolic resin, ABS engineering plastic and POM polyformaldehyde.
5. The thermite grain bi-directional combustion cutting apparatus of claim 4, wherein the wire guide a is plugged into a first wire, the wire guide B is plugged into a second wire, and the first wire and the second wire are connected to a power source, respectively.
6. The thermite grain bidirectional combustion cutting device according to claim 5, wherein the thermite grains are arranged in the first combustion medicine loading chamber and the second combustion medicine loading chamber respectively, the outer shell is made of one of PVC polyvinyl chloride, phenolic resin, ABS engineering plastic and POM polyformaldehyde, the inner medicine is cylindrical, and a central through hole is arranged in the center of the inner medicine.
7. The bidirectional combustion cutting method for the thermite grain is characterized by comprising the following steps of:
s1, preparing thermite grains;
S2, assembling the thermite grain bidirectional combustion cutting device.
8. The thermite grain bi-directional combustion cutting method of claim 7, wherein S1 comprises the steps of:
s11, respectively placing thermite powder and binder powder in a mesh screen;
s12, repeatedly screening and mixing thermite powder and binder powder by using a mesh screen to obtain mixed powder for internal charging;
S13, placing the inner charge powder and the outer shell in a die, and cold-pressing and molding the inner charge powder into the outer shell under the conditions of 8MPa and 30s of dwell time.
9. The thermite grain bi-directional combustion cutting method of claim 7, wherein S2 comprises the steps of:
s21, assembling the first shrinkage nozzle and the first combustion medicine loading chamber through threaded connection, assembling the first combustion medicine loading chamber and the first auxiliary medicine loading chamber through threaded connection, and placing the two thermite grains into the first combustion medicine loading chamber;
S22, the first lead and the second lead are respectively plugged into an ignition powder chamber through a lead hole A and a lead hole B and are connected with an electric ignition head, and ignition powder is placed in an ignition powder storage chamber;
s23, assembling the second combustion medicine loading chamber and the second auxiliary medicine loading chamber through threaded connection, and putting the two thermite grains into the second combustion medicine loading chamber;
S24, assembling the second shrinkage nozzle and the second combustion medicine loading chamber through threaded connection, and sealing the wire guide A and the wire guide B;
s25, connecting the first wire and the second wire with a power supply respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410361015.4A CN118143423A (en) | 2024-03-27 | 2024-03-27 | Thermite grain bidirectional combustion cutting device and thermite grain bidirectional combustion cutting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410361015.4A CN118143423A (en) | 2024-03-27 | 2024-03-27 | Thermite grain bidirectional combustion cutting device and thermite grain bidirectional combustion cutting method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN118143423A true CN118143423A (en) | 2024-06-07 |
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ID=91298225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410361015.4A Pending CN118143423A (en) | 2024-03-27 | 2024-03-27 | Thermite grain bidirectional combustion cutting device and thermite grain bidirectional combustion cutting method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN118143423A (en) |
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- 2024-03-27 CN CN202410361015.4A patent/CN118143423A/en active Pending
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