CN103182609B - Burning type cutting cartridge is used in a kind of steel construction piece cutting - Google Patents
Burning type cutting cartridge is used in a kind of steel construction piece cutting Download PDFInfo
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- CN103182609B CN103182609B CN201110441975.4A CN201110441975A CN103182609B CN 103182609 B CN103182609 B CN 103182609B CN 201110441975 A CN201110441975 A CN 201110441975A CN 103182609 B CN103182609 B CN 103182609B
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Abstract
The invention discloses a kind of steel construction piece cutting burning type cutting cartridge.This burning type cutting cartridge by the bottom of bullet, the fire in a stove before fuel is added, shell case, detonator, cutting agent and nozzle form; In cutting agent, thermite is based on thermite, the percentage accounting for cutting agent weight is 65% ~ 85%, gas-forming agent is based on potassium nitrate, and the percentage accounting for cutting agent weight is 5% ~ 25%, and the percentage that slag former and alloying constituent account for cutting agent weight is 7% ~ 20%.During cutting, burning type cutting cartridge is packed in cutting gun, hand-held cutting gun aims at cutting member, the percussion cutting cartridge fire in a stove before fuel is added, the fire in a stove before fuel is added lights detonator in bullet, cutting agent lighted by detonator, produces pyrometallurgy melt and gases at high pressure, product ejection after the compression of nozzle cumulative, by steel construction piece local melting, realize cutting.This cutting cartridge is mainly used in Rapid Thermal cutting and the imderwater cutting thereof of various steel construction piece.
Description
Technical field
The present invention relates to emergent cutting field, particularly a kind of with the burning type cutting cartridge of solid cutting agent energy accumulation burning cutting steel structural member.
Background technology
Emergent cutting is the urgent important technology installed, rush to repair and tear down of field job facilities equipment, requisite technology in Ye Shi army BDAR both.Statistics shows, equipment parts in the wild or battlefield occurs stuck, fracture, the damage such as perforation, affect serviceability, first major part need adopt emergent method of cutting to solve fast.Same in the urgent need to light safe emergent cutting method in the disaster rescues such as earthquake, snow disaster, landslide, shipwreck and in daily fire-fighting rescue.
At present, in the repairing of field, conventional method for hot cutting is plasma cut or gas cutting.Plasma cut utilizes high-energy-density, high-temperature high-speed airflow to carry out a kind of method for hot cutting cut, and can cut various metals, but it needs the equipment of large power supply and heavy costliness, goes up the flexible property of serious restriction repairing in the wild; Gas cutting is thermal-flame and the metal vigorous combustion in oxygen stream utilizing fuel gas and oxygen mix to burn to be formed, and the oxide slag produced after burning is blown off a kind of method for hot cutting realizing metal segmentation, carbon steel, low-alloy steel can be cut, but can not effectively cut the metals such as cast iron, stainless steel, non-ferrous metal, and need gas storage equipment etc.In recent years, technical staff researches and develops at new fuel gas, gas storage equipment is small-sized has turned extensive work into, but no matter use which kind of fuel gas, liquid or other mode of igniting, all be unable to do without strong combustion adjuvant oxygen or liquid oxygen, it is frequent that oxygen storage tank miniaturization must bring storage tank to change, and must be equipped with the large-scale special aeration of development or liquid equipment, very easily damages or break very dangerous under the environment that hyperbaric oxygen gas tank burns at the hail of bullets, smoke fire simultaneously.Utilize combustion synthesis technology, based on manual SHS weld technological achievement, expand the manual self-propagating cutting method worked out, be that a kind of field emergency without the need to outside resources and equipment cuts new method, its cutting equipment used is for being applicable to manual burning type cutting pen (rod).Although the method can at non-transformer, burn cutting metal without source of the gas and without under appointed condition, but reason that the jetting stream temperature produced due to cutting pen (rod) burning is low, effluxvelocity is little, energy density is little, thermal loss is large, oxygen content is low etc., cause that Metal Cutting efficiency is low, thickness is thin, kerf width is large and irregular etc. is difficult to the problem overcome.
Portable solid cutting agent cutting technique is the punching of a kind of new steel structure part or cutting technique, and its cutting equipment is made up of portable cutting gun and burning type cutting cartridge two parts.During cutting, burning type cutting cartridge is packed in cutting gun, hand-held cutting gun aims at cutting member, the percussion cutting cartridge fire in a stove before fuel is added, the fire in a stove before fuel is added lights detonator in bullet, cutting agent lighted by detonator, produces pyrometallurgy melt and gases at high pressure, product ejection after the compression of nozzle cumulative, steel construction piece local melting is blown down by gases at high pressure, realizes punching or cutting.The method can realize cutting the manual operations of the metals such as various carbon steel, steel alloy.The pyrometallurgy melt produced due to burning and gases at high pressure spray after being through the compression of nozzle cumulative, jetting stream temperature is high, effluxvelocity is large, energy density is large, thermal loss is little, has the features such as cutting metal thickness is large, efficiency is high, wide application, use storing and transporting security are good.Therefore, this applicable manual operations, and without the need to extraneous power supply and source of the gas, easy to carry, simple to operate, safe and reliable hardware cutting new method, the desirable technique means of emergent Rapid Thermal cutting metal, to the emergency first-aid repair completed faster and better in field or battlefield situation and rescue and relief work task, tool is of great significance.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of without the need to outside resources and equipment, easy to carry, simple to operate, and the metallic element met under the emergency situation such as field, battlefield is met an urgent need the cutting material of thermal cutting.
For solving the problems of the technologies described above, the invention provides a kind of steel construction piece cutting burning type cutting cartridge, it is characterized in that described cutting cartridge by the bottom of bullet, the fire in a stove before fuel is added, shell case, detonator, cutting agent and nozzle form.
Described cutting cartridge, full bullet long 90 ~ 150mm, caliber 20 ~ 40mm, shell case are 1.5 ~ 2.5mm presshoard tube; Play inner bottom part and press-fit the thick detonator of 3 ~ 5mm, cutting agent is that pressed powder mixes the hollow structure be pressed into, hollow duct is about about 1/5 of caliber, play the nozzle that Inner Front End is graphite or ceramic material, internal taper hole adds straight hole structure, thick 10 ~ the 20mm of nozzle, straight hole bore 2 ~ 10mm, nozzle od with shell case internal diameter, and adopts high temperature resistant adhesive bonding with shell case internal diameter.
In the agent of described cutting cartridge internal cutting, thermite is by CuO, Fe
2o
3oxidant and Al, Mg reducing agent composition, the percentage accounting for cutting agent gross weight is 65% ~ 85%; Gas-forming agent is selected from KNO
3, CaCO
3with containing fluorocarbons, the percentage accounting for cutting agent gross weight is 5% ~ 25%; Slag former is selected from Al
2o
3, Cr
2o
3, SiO
2, TiO
2, V
2o
5, the percentage accounting for cutting agent gross weight is 2% ~ 10%.Alloying constituent is selected from Ni, Zr, Ti and rare earth material, and the percentage accounting for cutting agent gross weight is 5% ~ 10%.
Burning type cutting cartridge combustion synthesis reaction speed of the present invention fast (reaching 5 ~ 20mm/s), energy density (reaches 6 × 10 greatly
3w/cm
2above), ignition temperature high (reaching more than 4000K), cutting blowing force is large.Cut based on the high temperature of thermite generation combustion reaction generation in cutting agent and high-temperature fusant product deposite metal thereof, what produce with gas-forming agent crosses carrier of oxygen and steel generation heat release and the oxidation reaction forming low melting point oxide is auxiliary in a large number, blows motlten metal off and slag realizes cutting under lasting action of high-speed airflow.This burning type cutting cartridge is applicable to field or battlefield without electricity, without gas, quick thermal cutting and the imderwater cutting thereof of meeting an urgent need without steel construction piece various under appointed condition.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention will be further described with enforcement.
Fig. 1 is burning type cutting cartridge structure chart.
In Fig. 1,1 is nozzle, and 2 is cutting agents, and 3 is shell cases, and 4 is detonators, and 5 is fires in a stove before fuel is added, and 6 is at the bottom of bullet.
Detailed description of the invention:
External diameter 23mm burning type cutting cartridge, the long 120mm of full bullet, the fire in a stove before fuel is added are the end-6 second, shell case is 1.5mm presshoard tube; Play inner bottom part and press-fit the thick detonator of 3mm, cutting agent is that pressed powder mixes the hollow structure be pressed into, hollow duct is about caliber 6mm, the nozzle that bullet Inner Front End is graphite material, internal taper hole adds straight hole structure, the thick 12mm of nozzle, straight hole bore 4mm, nozzle od with shell case internal diameter, and adopts waterglass bonding agent bonding with shell case internal diameter.Cutting agent consists of CuO (-200 order) 8% ~ 12%, Fe
2o
3(-200 order) 45% ~ 50%, Al (-250 order) 18% ~ 22%, KNO
3(-100 order) 10% ~ 15%, CaCO
3(-100 order) 2%, Al
2o
3(-150 order) 1.5%, Cr
2o
3(-200 order) 1.5%, Ni (-150 order) 5% ~ 8%, Ti (-100 order) 1% and micro constitutent.Above-mentioned material after ball milling sieves respectively, is dried 2 hours in 120 DEG C, is mixed, by the shaping cutting agent of homemade forming machine by proportioning.Special detonator is loaded bottom cutting cartridge, reinstall shaping after cutting agent.After powder charge completes, load onto nozzle, 1 external diameter 23mm burning type cutting cartridge is made (as shown in Figure 1).Cutting cartridge for subsequent use loads antistatic plastic bag film, vacuumizes thermoplastic envelope.
During cutting, burning type cutting cartridge is taken out from antistatic sealing bag, be packed in special cutting gun, hand-held cutting gun aims at cutting member, the percussion cutting cartridge fire in a stove before fuel is added, the fire in a stove before fuel is added lights detonator in bullet, and cutting agent lighted by detonator, and generation pyrometallurgy melt and high pressure cross carrier of oxygen, product ejection after the compression of nozzle cumulative, burns steel construction piece local melting and is blown down by gases at high pressure.This cutting cartridge can realize the cutting of the thick steel construction piece of 20mm.
Claims (2)
1. burning type cutting cartridge is used in a steel construction piece cutting, it is characterized in that described cutting cartridge is by the bottom of bullet, the fire in a stove before fuel is added, shell case, detonator, cutting agent and nozzle composition, long 90 ~ the 150mm of full bullet, caliber 20 ~ 40mm, shell case is 1.5 ~ 2.5mm presshoard tube, play inner bottom part and press-fit the thick detonator of 3 ~ 5mm, cutting agent is that pressed powder mixes the hollow structure be pressed into, hollow duct is about 1/5 of caliber, playing Inner Front End is graphite or ceramic material, internal taper hole adds the nozzle of straight hole structure, thick 10 ~ the 20mm of nozzle, straight hole bore 2 ~ 10mm, nozzle od is with shell case internal diameter, and adopt high temperature resistant adhesive bonding with shell case internal diameter.
2. cutting cartridge according to claim 1, in cutting agent, thermite is by CuO, Fe
2o
3oxidant and Al, Mg reducing agent composition, the percentage accounting for cutting agent gross weight is 65% ~ 85%, and gas-forming agent is selected from KNO
3, CaCO
3and fluorocarbons, the percentage accounting for cutting agent gross weight is 5% ~ 25%, and slag former is selected from Al
2o
3, Cr
2o
3, SiO
2, TiO
2, V
2o
5, the percentage accounting for cutting agent gross weight is 2% ~ 10%, and alloying constituent is selected from Ni, Zr, Ti and rare earth material, and the percentage accounting for cutting agent gross weight is 5% ~ 10%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110441975.4A CN103182609B (en) | 2011-12-27 | 2011-12-27 | Burning type cutting cartridge is used in a kind of steel construction piece cutting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110441975.4A CN103182609B (en) | 2011-12-27 | 2011-12-27 | Burning type cutting cartridge is used in a kind of steel construction piece cutting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103182609A CN103182609A (en) | 2013-07-03 |
| CN103182609B true CN103182609B (en) | 2015-09-30 |
Family
ID=48674186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110441975.4A Active CN103182609B (en) | 2011-12-27 | 2011-12-27 | Burning type cutting cartridge is used in a kind of steel construction piece cutting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103182609B (en) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103909357A (en) * | 2014-04-08 | 2014-07-09 | 北京工业大学 | Flux-cored cutting wire for closed space cutting under pressure |
| CN106238933B (en) * | 2015-06-11 | 2019-02-12 | 中国人民解放军军械工程学院 | A kind of solid thermit powder cutting cartridge |
| CN105396930A (en) * | 2015-12-23 | 2016-03-16 | 吴艺英 | Novel thermal cutting jet cutter |
| CN105674828B (en) * | 2016-01-21 | 2017-08-08 | 中国人民解放军军械工程学院 | One kind, which is ignited, destroys bullet and preparation method thereof |
| CN105674829B (en) * | 2016-01-21 | 2017-10-13 | 中国人民解放军军械工程学院 | One kind destroys bullet detonator and preparation method thereof |
| CN105732241B (en) * | 2016-01-21 | 2017-12-19 | 中国人民解放军军械工程学院 | One kind destroys bullet Composite incendiary agents and preparation method thereof |
| CN108687424A (en) * | 2017-04-10 | 2018-10-23 | 中国人民解放军军械工程学院 | A kind of portable underwater wet method is without electricity welding method |
| CN107501018B (en) * | 2017-08-08 | 2020-04-14 | 成都银河动力有限公司 | Special medicament for breaking and dismantling equipment for chemical energy plate |
| CN108581129B (en) * | 2018-05-16 | 2020-05-01 | 中国人民解放军陆军工程大学 | Method for cutting metal material by burning and jetting electric control medicament |
| CN109020769A (en) * | 2018-10-12 | 2018-12-18 | 南京林业大学 | A kind of electronics cutter device and metal fuse agent powder column |
| CN109623136B (en) * | 2019-01-21 | 2023-05-16 | 中国人民解放军陆军工程大学 | Directional cutting device for combustion type steel member |
| CN112139658A (en) * | 2019-06-28 | 2020-12-29 | 中国人民解放军陆军工程大学 | Portable passive welding bomb and using method thereof |
| CN110642664A (en) * | 2019-11-01 | 2020-01-03 | 四川蓝狮科技有限公司 | High-energy high-combustion-rate ignition agent |
| CN110900035B (en) * | 2019-11-20 | 2021-03-26 | 山东军浩苑环保科技有限公司 | Electroless cutting material suitable for underwater |
| CN112626635B (en) * | 2020-12-15 | 2022-01-28 | 西南科技大学 | Method for preparing high-burning-rate micro-pipeline based on nano thermite ink |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3724372A (en) * | 1963-10-30 | 1973-04-03 | Us Navy | Pyrojet cutter for underwater or land use |
| US3762327A (en) * | 1970-05-04 | 1973-10-02 | Pains Wessex Ltd | Pyrotechnic devices |
| US3713636A (en) * | 1970-09-22 | 1973-01-30 | Us Navy | Incendiary cutting torch for underwater use |
| US3890174A (en) * | 1972-02-18 | 1975-06-17 | Jr Horace H Helms | Pyrotechnic composition |
| US5372069A (en) * | 1993-09-09 | 1994-12-13 | The United States Of America As Represented By The Secretary Of The Navy | Pyronol torch |
| US6627013B2 (en) * | 2002-02-05 | 2003-09-30 | Greg Carter, Jr. | Pyrotechnic thermite composition |
| CN101444876B (en) * | 2008-11-20 | 2011-05-11 | 清华大学 | Manual thermit welding electrode and preparation and using methods thereof |
| CN102151982B (en) * | 2011-05-17 | 2012-11-21 | 武汉大学 | Portable welding pen |
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2011
- 2011-12-27 CN CN201110441975.4A patent/CN103182609B/en active Active
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| CN103182609A (en) | 2013-07-03 |
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