CN205436747U - Novel thermal cutting cutting bullet - Google Patents
Novel thermal cutting cutting bullet Download PDFInfo
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- CN205436747U CN205436747U CN201521080296.9U CN201521080296U CN205436747U CN 205436747 U CN205436747 U CN 205436747U CN 201521080296 U CN201521080296 U CN 201521080296U CN 205436747 U CN205436747 U CN 205436747U
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Abstract
The utility model discloses a novel thermal cutting cutting bullet, including spray tube, cutting agent, shell case and the fire in a stove before fuel is added, the fire in a stove before fuel is added set up in the middle part of shell case one end, fill in the shell case the cutting agent, the other end fixed connection of shell case the spray tube, the spray tube is for leaking hopper -shaped. Compared with the prior art, the utility model discloses do not need can realize the cutting under the external energy condition, the device of characteristics such as have small, light in weight in the aspect of the structure and easily carry can make the unit weight medicament produce the high heat simultaneously, and only needs the cutting agent that certain detonator can ignite. The utility model has the characteristics of with low costs and safe and reliable, hinder the metal cutting of rescue under no external power supply's such as mainly used field operations emergency repair, earthquake, landslide the condition, have of great significance to promoting the emergent ability of fighting, deal with emergency rescue and disaster relief such as earthquake, snow calamity, have the value of using widely.
Description
Technical field
This utility model relates to a kind of device for thermally cutting, particularly relates to a kind of Novel hot cutting cutting cartridge.
Background technology
Thermal cutting is that a kind of utilization concentrates heat energy to make melt material the method separated, and it is widely used in the processing of various metal material.Along with the development of technology, in recent years, cutting technique both domestic and external achieves breakthrough, and the multiple-energy-source such as flame cutting, Wire EDM, cut and plasma arc cutting, kinds of processes method have obtained quick development at modernization cutting technique.Although existing cutting technique is obtained for fast development in cutting accuracy, efficiency and quality, adapts to modern production demand, but be required for outside resources and equipment during its cutting.This is for complex environment such as BDAR both, natural disaster, and earthquake is speedily carried out rescue work etc. and to be required that fast reaction, simple portative cutting technique are difficult to cut quickly and efficiently.
Field is that syndrome engineering truck loads cutting equipment, main employing gas cutting and plasma arc cutting without the cutting method of outside resources at present.But speedily carry out rescue work etc. in complex environment such as BDAR both, natural disaster, earthquake and require that equipment has higher reliability and stability, plasma-arc cutting devices is complicated, including power supply, burning torch, control circuit, electrode, air-channel system, plasma arc cutting also requires that power supply floating voltage is high and is DC source, and the disadvantage mentioned above of plasma arc cutting is both needed to overcome further.Another the most commonly used gas cutting equipment is relatively small and cheap, can realize the cutting of carbon steel, low-alloy steel, but can not cut cast iron, non-ferrous metal etc., and need high-pressure gas equipment.Under the conditions of severe rescue and relief work, it is extremely dangerous for using high-pressure gas cylinder in emergent cutting, and due to its poor mobility, cutting operation will be severely limited.
Utility model content
The purpose of this utility model is that provides a kind of Novel hot cutting cutting cartridge to solve the problems referred to above.
This utility model is achieved through the following technical solutions above-mentioned purpose:
This utility model includes that jet pipe, cutting agent, shell case and the fire in a stove before fuel is added, the described fire in a stove before fuel is added are arranged at the middle part of described shell case one end, fills described cutting agent in described shell case, and the other end of described shell case is fixing connects described jet pipe, and described jet pipe is funnel-form.
The beneficial effects of the utility model are:
This utility model is a kind of Novel hot cutting cutting cartridge, compared with prior art, cutting technique of the present utility model is the motlten metal that a kind of burning by medicament produces high temperature, metal material is cut, thus realizes under conditions of without external energy source, metal material being realized the novel dicing technology of fly-cutting purpose；Can realize cutting under the conditions of need not the external energy, configuration aspects has that volume is little, lightweight and the device of the feature such as be easy to carry about with one, and Unit Weight medicament can be made to produce high heat simultaneously, and only needs the cutting agent that certain detonator can ignite.This utility model has low cost and safe and reliable feature, it is mainly used in the Metal Cutting without hindering rescue under conditions of external power supply such as field operations emergency first-aid repair, earthquake, landslide, for promoting emergent battle, the ability of the reply rescue and relief work such as earthquake, snow disaster is significant, and has the value promoted the use of.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model；
Fig. 2 is embodiment schematic diagram of the present utility model.
In figure: 1-jet pipe, 2-cutting agent, 3-shell case, the 4-fire in a stove before fuel is added, 5-firing pin, 6-bore, 7-high temp jet, 8-steel plate.
Detailed description of the invention
The utility model is described in further detail below in conjunction with the accompanying drawings:
As shown in Figure 1: this utility model includes jet pipe 1, cutting agent 2, shell case 3 and the fire in a stove before fuel is added 4, the described fire in a stove before fuel is added 4 is arranged at the middle part of described shell case 3 one end, filling described cutting agent 2 in described shell case 3, the other end of described shell case 3 is fixing connects described jet pipe 1, and described jet pipe 1 is funnel-form.
Jet pipe 1 is one of cutting cartridge vitals of carrying out energy conversion, and it can burn the heat energy of the high-temperature combustion product produced cutting agent 2 and pressure potential energy is transformed into the kinetic energy of metal jet, thus reaches to carry out steel plate 8 purpose of impact cutting.The whether reasonable quality of cutting effect that will directly influence of jet pipe 1 design, needs to ensure following basic demand when therefore designing jet pipe 1:
(1) reliable operation, can sustain the ablation of high-temperature combustion product and wash away, it is ensured that the integrity of profile.
(2) efficiency is high, therefore to reduce the friction loss in jet pipe 1, two phase flow loss and radiation loss etc. during design as far as possible.
(3) architecture quality is light, meets cutting cartridge and alleviates the general design requirement of weight, and therefore jet pipe 1 should use applicable exotic material and structure.
(4) good manufacturability, low cost.
Shell case 3 is the basic components of cutting cartridge, its effect is for connection to jet pipe 1, the fire in a stove before fuel is added 4 and cutting medicament, make an entirety, to ensure cutting cartridge location in cartridge chamber, prevent simultaneously cocking ignite cutting agent 2 time produce high-temperature gas release and direct ablation cartridge chamber from bore 6 afterbody.The shell case 3 of cutting cartridge can thickness can be thin, this depend in bullet charge constitution design.
The fire in a stove before fuel is added 4 is to light the priming system of medicament in bullet to be referred to as the fire in a stove before fuel is added 4.According to cutting cartridge design size and the condition of use, the fire in a stove before fuel is added 4 of body bottom should select the percussion primer 4 of whizbang.This utility model is 26mm in order to load the gun bore of cutting cartridge, therefore body internal cutting agent 2 need to use increase gunpowder mode to ignite.
Specifically, described cutting agent 2 is the thermite of 70%-85%, the diluent of 1%-2%, the gas-forming agent of 7%-15% and 3%-5% alloying constituent composition；Described Lu's thermit powder is by the CuO+Al system of 10%-15% and the Fe of 60%-75%2O3+ Al system thermite mixing composition；Described diluent is metal-oxide, and described metal-oxide is Al2O3；Described gas-forming agent is KNO3。
Thermite: account for the 70%-85% of gross weight, provides heat for cutting during burning, and the product of generation is particularly important on impacts such as combustion speed, fume amount, splashings, is the key component of cutting agent 2.
Diluent: in order to adjust reaction temperature and speed, reaction is made to be easy to control, also need to add a certain proportion of diluent not participating in combustion synthesis reaction in the middle of cutting agent 2, content is at about 1%-2%, generally with some metal-oxides as diluent, this utility model can be selected Al2O3.
Gas-forming agent: for improving cutting cartridge cutting effect, needs to improve pressure in cutting cartridge, it is simple to the fully reaction of cutting agent 2 and the speed of raising spray liquid flow and outlet pressure.The gas-forming agent (content is 7%-15%) that interpolation is suitable for improves gas making amount, increases the interior fusion penetration that can effectively increase workpiece with outlet pressure of bullet of cutting cartridge, reduces hole cone angle, be effectively improved cut quality.This utility model selects KNO3 as gas-forming agent.
Alloying constituent: alloying constituent increases jet density in course of injection, momentum increases；The freezing point of molten alloy can be effectively reduced after adding alloying constituent (content is 3%-5%)；Improve the structure property of surface metal overlay.
As shown in Figure 2: load thing in cutting cartridge bullet and be mainly composed of the pyrotechnic composition containing thermite, its incision principle is based primarily upon firework theory incision principle: utilize the high-temperature molten metal jet that pyrotechnic composition burning produces, and melts metal material by the heat transfer of jet and reaches to cut purpose.Cutting cartridge is loaded in special cutting gun during cutting, the Q235 steel plate 8 of quasi experiment is cut (body is not launched) by hand-held cutting gun, firing pin 6 is made to fire the fire in a stove before fuel is added 4 by cocking, the fire in a stove before fuel is added 4 ignites cutting agent 2, cutting agent 2 burning produces high-temperature combustion product (liquid metal ferrum and copper, aluminium sesquioxide granule and gas), product sprays after nozzle cumulative compresses, and forms high temp jet 7, and steel construction piece local melting is realized cutting.
Of the present utility model ultimate principle and principal character and of the present utility model advantage have more than been shown and described.Skilled person will appreciate that of the industry; this utility model is not restricted to the described embodiments; described in above-described embodiment and description, principle of the present utility model is simply described; on the premise of without departing from this utility model spirit and scope; this utility model also has various changes and modifications, in the range of these changes and improvements both fall within claimed this utility model.This utility model claims scope and is defined by appending claims and equivalent thereof.
Claims (1)
1. a Novel hot cutting cutting cartridge, it is characterized in that: include that jet pipe, cutting agent, shell case and the fire in a stove before fuel is added, the described fire in a stove before fuel is added are arranged at the middle part of described shell case one end, described shell case is filled described cutting agent, the other end of described shell case is fixing connects described jet pipe, and described jet pipe is funnel-form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521080296.9U CN205436747U (en) | 2015-12-23 | 2015-12-23 | Novel thermal cutting cutting bullet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521080296.9U CN205436747U (en) | 2015-12-23 | 2015-12-23 | Novel thermal cutting cutting bullet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205436747U true CN205436747U (en) | 2016-08-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521080296.9U Expired - Fee Related CN205436747U (en) | 2015-12-23 | 2015-12-23 | Novel thermal cutting cutting bullet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205436747U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105396930A (en) * | 2015-12-23 | 2016-03-16 | 吴艺英 | Novel thermal cutting jet cutter |
| CN115091020A (en) * | 2022-04-18 | 2022-09-23 | 北京理工大学 | Pyrotechnic cutting torch capable of forming pulse jet characteristics |
-
2015
- 2015-12-23 CN CN201521080296.9U patent/CN205436747U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105396930A (en) * | 2015-12-23 | 2016-03-16 | 吴艺英 | Novel thermal cutting jet cutter |
| CN115091020A (en) * | 2022-04-18 | 2022-09-23 | 北京理工大学 | Pyrotechnic cutting torch capable of forming pulse jet characteristics |
| CN115091020B (en) * | 2022-04-18 | 2023-03-21 | 北京理工大学 | Pyrotechnic cutting torch capable of forming pulse jet characteristics |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160810 Termination date: 20161223 |