CN103182609A - Combustion jet cutter used for steel structure member cutting - Google Patents
Combustion jet cutter used for steel structure member cutting Download PDFInfo
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- CN103182609A CN103182609A CN2011104419754A CN201110441975A CN103182609A CN 103182609 A CN103182609 A CN 103182609A CN 2011104419754 A CN2011104419754 A CN 2011104419754A CN 201110441975 A CN201110441975 A CN 201110441975A CN 103182609 A CN103182609 A CN 103182609A
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Abstract
The invention discloses a combustion jet cutter used for steel structure member cutting. The combustion jet cutter consists of a jet cutter bottom, primer, a shell case, ignition agent, cutting agent and a nozzle, wherein thermite is based on plain thermit in the cutting agent; the plain thermit roughly accounts for 65-85wt% of the cutting agent; gas-forming agent is based on potassium nitrate which roughly accounts for 5-25wt% of the cutting agent; and slagging constituent and alloying agent roughly account for 7-20wt% of the cutting agent. During cutting, the combustion jet cutter is filled into a cutting gun, the cutting gun is held with a hand to aim at a cutting part, the jet cutter primer is triggered, inner ignition agent the jet cutter is ignited by the primer, the cutting agent is ignited by the ignition agent to generate high-temperature metallurgical melt and high-pressure gas, and a product is injected after being subjected to energy-gathering compression by the nozzle to locally melt the steel structure member so as to realize cutting. The jet cutter is mainly used for the quick thermal cutting and the underwater cutting of various steel structure members.
Description
Technical field
The present invention relates to emergent cutting field, particularly a kind of burning type cutting cartridge with solid cutting agent cumulative burning cutting steel structure spare.
Background technology
Emergent cutting is the urgent important technology of installing, rushing to repair and tear down of open-air job facilities equipment, also is requisite technology in army's battlefield repairing.Statistics shows, the equipment parts in the open air or occur on the battlefield stuck, fracture, damage such as perforation, influence serviceability, most ofly need at first to adopt emergent method of cutting to solve fast.In disaster rescues such as earthquake, snow disaster, landslide, shipwreck and press for light safe emergent cutting method in the daily fire-fighting rescue equally.
At present, method for hot cutting commonly used is plasma cutting or gas cutting in the open-air repairing.The plasma cutting is a kind of method for hot cutting that utilizes high-energy-density, high temperature and high speed air-flow to cut, and can cut multiple metal, but it needs the equipment of large power supply and heavy costliness, goes up the flexible property of serious restriction repairing in the open air; Gas cutting is thermal-flame and the metal acutely burning in Oxygen Flow that utilizes fuel gas and oxygen mix burning to form, and the oxide slag that the back of will burning produces blows a kind of method for hot cutting of realizing that metal is cut apart off, can cut carbon steel, low-alloy steel, but can not effectively cut metals such as cast iron, stainless steel, non-ferrous metal, and need gas storage equipment etc.In recent years, the technical staff is in new fuel gas research and development, the small-sized extensive work that turned into of gas storage equipment, 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 the oxygen storage tank miniaturization must bring storage tank to change, and must be equipped with the large-scale special-purpose aeration of development or liquid equipment, and the hyperbaric oxygen gas tank very easily damages under the environment that the hail of bullets, smoke fire burn or breaks very dangerous simultaneously.Utilize combustion synthesis technology, based on the manual solder technology achievement that spreads certainly, the craft that expansion works out is a kind of field emergency cutting new method that need not outside resources and equipment from spreading cutting method, and the cutting equipment of its use is for being fit to manual burning type cutting pen (rod).Though this method can be at non-transformer, do not have source of the gas and do not have under the appointed condition and burn cutting metal, but because reason such as the jetting stream temperature that cutting pen (rod) burning produces is low, effluxvelocity is little, energy density is little, thermal loss is big, oxygen content is low, cause that Metal Cutting efficient is low, thin thickness, kerf width is big and the problem that is difficult to overcome such as irregular.
Portable solid cutting agent cutting technique is a kind of new steel structure spare punching or cutting technique, and its cutting is made up of portable cutting gun and burning type cutting cartridge two parts with equipment.During cutting the burning type cutting cartridge is packed in the cutting gun, hand-held cutting gun is aimed at cutting member, the percussion cutting cartridge fire in a stove before fuel is added, the fire in a stove before fuel is added is lighted detonator in the bullet, detonator is lighted cutting agent, produces pyrometallurgy melt and gases at high pressure, product ejection after the compression of nozzle cumulative, blow down with the steel construction piece local melting and by gases at high pressure, realize punching or cutting.This method can realize the manual operations cutting to metals such as various carbon steels, steel alloys.Because the pyrometallurgy melt that burning produces and gases at high pressure are through nozzle cumulative compression back ejection, jetting stream temperature height, effluxvelocity is big, energy density is big, thermal loss is little, has that cutting metal thickness is big, efficient is high, characteristics such as wide application, use storing and transporting security are good.Therefore, this suitable manual operations, and need not extraneous power supply and source of the gas, easy to carry, simple to operate, safe and reliable hardware cutting new method, be the desirable technique means of emergent Rapid Thermal cutting metal, to finishing emergency first-aid repair and the rescue and relief work task under field or the battlefield situation faster and better, has very important meaning.
Summary of the invention
Technical problem to be solved by this invention provides a kind of outside resources and equipment of need not, and is easy to carry, simple to operate, satisfies the cutting material of the emergent thermal cutting of metallic element under the emergency situations such as field, battlefield.
For solving the problems of the technologies described above, the invention provides the cutting of a kind of steel construction piece and use the burning type cutting cartridge, it is characterized in that at the bottom of described cutting cartridge is by 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 that is pressed into, the hollow duct is about about 1/5 of caliber, play Inner Front End and be the nozzle that graphite or ceramic material, internal taper hole add the straight hole structure, thick 10～the 20mm of nozzle, straight hole bore 2～10mm, nozzle od is with the shell case internal diameter, and adopts high temperature resistant adhesive and shell case internal diameter bonding.
Thermite is by CuO, Fe in the interior cutting agent of described cutting cartridge
2O
3Oxidant and Al, Mg reducing agent are formed, and the percentage that accounts for the cutting agent gross weight is 65%～85%; Gas-forming agent is selected from KNO
3, CaCO
3With contain fluorocarbons, the percentage that accounts for the 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 that accounts for the cutting agent gross weight is 2%～10%.Alloying constituent is selected from Ni, Zr, Ti and rare earth material, and the percentage that accounts for the cutting agent gross weight is 5%～10%.
Burning type cutting cartridge combustion synthesis reaction speed of the present invention is fast, and (reach 5～20mm/s), energy density (reaches 6 * 10 greatly
3W/cm
2More than), ignition temperature height (reaching more than the 4000K), it is big that power is blown in cutting.High temperature and high-temperature fusant product deposite metal thereof that cutting produces based on thermite generation combustion reaction in the cutting agent, the a large amount of oxidation reactions of crossing carrier of oxygen and steel generation heat release and forming low melting point oxide that produce with gas-forming agent are auxilliary, are continuing to blow motlten metal under the action of high-speed airflow off and slag is realized cutting.This burning type cutting cartridge is applicable to that field or battlefield do not have fast emergent thermal cutting and the cutting under water thereof of various steel construction pieces under electricity, no gas, the no appointed condition.
Description of drawings
The present invention will be further described with enforcement below in conjunction with accompanying drawing.
Fig. 1 is burning type cutting cartridge structure chart.
Among Fig. 1, the 1st, nozzle, the 2nd, cutting agent, the 3rd, shell case, the 4th, detonator, the 5th, the fire in a stove before fuel is added, the 6th, at the bottom of the bullet.
The specific embodiment:
External diameter 23mm burning type cutting cartridge, the complete long 120mm of bullet, the fire in a stove before fuel is added are that the end-6 second, shell case are the 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 that is pressed into, the hollow duct is about caliber 6mm, the bullet Inner Front End is the nozzle that graphite material, internal taper hole add the straight hole structure, the thick 12mm of nozzle, straight hole bore 4mm, nozzle od is with the shell case internal diameter, and adopts waterglass bonding agent and shell case internal diameter bonding.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 in 120 ℃ of oven dry 2 hours, mixes by proportioning, by homemade make-up machine moulding cutting agent after ball milling sieves respectively.With pack into cutting cartridge bottom of special detonator, reinstall the cutting agent after the moulding.After powder charge is finished, load onto nozzle, 1 external diameter 23mm burning type cutting cartridge is made (as shown in Figure 1).The standby cutting cartridge antistatic plastic bag film of packing into vacuumizes the thermoplastic envelope.
During cutting the burning type cutting cartridge is taken out from the antistatic sealing bag, be packed in the special cutting gun, hand-held cutting gun is aimed at cutting member, the percussion cutting cartridge fire in a stove before fuel is added, the fire in a stove before fuel is added is lighted detonator in the bullet, and detonator is lighted cutting agent, produces pyrometallurgy melt and high pressure and crosses carrier of oxygen, product ejection after the compression of nozzle cumulative is blown down with the burning of steel construction piece local melting and by gases at high pressure.This cutting cartridge can be realized the cutting of the thick steel construction piece of 20mm.
Claims (3)
1. the burning type cutting cartridge is used in steel construction piece cutting, it is characterized in that at the bottom of described cutting cartridge is by bullet, the fire in a stove before fuel is added, shell case, detonator, cutting agent and nozzle form.
2. cutting cartridge according to claim 1, 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 that is pressed into, the hollow duct is about about 1/5 of caliber, play Inner Front End and be the nozzle that graphite or ceramic material, internal taper hole add the straight hole structure, thick 10～the 20mm of nozzle, straight hole bore 2～10mm, nozzle od is with the shell case internal diameter, and adopts high temperature resistant adhesive and shell case internal diameter bonding.
3. cutting cartridge according to claim 1, thermite is by CuO, Fe in the cutting agent
2O
3Oxidant and Al, Mg reducing agent are formed, and the percentage that accounts for the cutting agent gross weight is 65%～85%; Gas-forming agent is selected from KNO
3, CaCO
3With contain fluorocarbons, the percentage that accounts for the 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 that accounts for the cutting agent gross weight is 2%～10%.Alloying constituent is selected from Ni, Zr, Ti and rare earth material, and the percentage that accounts for the 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 true CN103182609A (en) | 2013-07-03 |
| CN103182609B 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)
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| CN (1) | CN103182609B (en) |
Cited By (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 |
| CN105396930A (en) * | 2015-12-23 | 2016-03-16 | 吴艺英 | Novel thermal cutting jet cutter |
| CN105674828A (en) * | 2016-01-21 | 2016-06-15 | 中国人民解放军军械工程学院 | Ignition destroy bomb and preparation method thereof |
| CN105732241A (en) * | 2016-01-21 | 2016-07-06 | 中国人民解放军军械工程学院 | Composite incendiary agent for destroying ammunitions and preparation method of composite incendiary agent |
| CN106238933A (en) * | 2015-06-11 | 2016-12-21 | 中国人民解放军军械工程学院 | A kind of solid thermit powder cutting cartridge |
| 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 |
| CN107501018A (en) * | 2017-08-08 | 2017-12-22 | 成都银河动力有限公司 | A kind of special agent for chemical energy sheet material dismantling equipment |
| CN108581129A (en) * | 2018-05-16 | 2018-09-28 | 中国人民解放军陆军工程大学 | A kind of method of automatically controlled medicament combustion jet cutting metal material |
| 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 |
| 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 |
| CN109623136A (en) * | 2019-01-21 | 2019-04-16 | 中国人民解放军陆军工程大学 | Burn Steel section member directional cutting device |
| 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 |
| CN110900035A (en) * | 2019-11-20 | 2020-03-24 | 山东军浩苑环保科技有限公司 | Electroless cutting material suitable for underwater |
| 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 |
| CN112626635A (en) * | 2020-12-15 | 2021-04-09 | 西南科技大学 | Method for preparing high-burning-rate micro-pipeline based on nano thermite ink |
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Cited By (18)
| 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 |
| CN106238933A (en) * | 2015-06-11 | 2016-12-21 | 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 |
| CN105674828A (en) * | 2016-01-21 | 2016-06-15 | 中国人民解放军军械工程学院 | Ignition destroy bomb and preparation method thereof |
| CN105732241A (en) * | 2016-01-21 | 2016-07-06 | 中国人民解放军军械工程学院 | Composite incendiary agent for destroying ammunitions and preparation method of composite incendiary agent |
| 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 |
| 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 |
| CN107501018A (en) * | 2017-08-08 | 2017-12-22 | 成都银河动力有限公司 | A kind of special agent for chemical energy sheet material dismantling equipment |
| 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 |
| CN108581129A (en) * | 2018-05-16 | 2018-09-28 | 中国人民解放军陆军工程大学 | A kind of method of automatically controlled medicament combustion jet cutting metal material |
| 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 |
| CN109623136A (en) * | 2019-01-21 | 2019-04-16 | 中国人民解放军陆军工程大学 | Burn Steel section member directional cutting device |
| 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 |
| CN110900035A (en) * | 2019-11-20 | 2020-03-24 | 山东军浩苑环保科技有限公司 | Electroless cutting material suitable for underwater |
| CN112626635A (en) * | 2020-12-15 | 2021-04-09 | 西南科技大学 | Method for preparing high-burning-rate micro-pipeline based on nano thermite ink |
| 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 |
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