CN108083235B - Transfer powder for oxygen candle and preparation method thereof - Google Patents
Transfer powder for oxygen candle and preparation method thereof Download PDFInfo
- Publication number
- CN108083235B CN108083235B CN201711482176.5A CN201711482176A CN108083235B CN 108083235 B CN108083235 B CN 108083235B CN 201711482176 A CN201711482176 A CN 201711482176A CN 108083235 B CN108083235 B CN 108083235B
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- China
- Prior art keywords
- powder
- chlorate
- mass
- parts
- oxygen candle
- Prior art date
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- 239000000843 powder Substances 0.000 title claims abstract description 28
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 25
- 239000001301 oxygen Substances 0.000 title claims abstract description 25
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 25
- 238000002360 preparation method Methods 0.000 title abstract description 7
- XTEGARKTQYYJKE-UHFFFAOYSA-M Chlorate Chemical compound [O-]Cl(=O)=O XTEGARKTQYYJKE-UHFFFAOYSA-M 0.000 claims abstract description 20
- QFFVPLLCYGOFPU-UHFFFAOYSA-N barium chromate Chemical compound [Ba+2].[O-][Cr]([O-])(=O)=O QFFVPLLCYGOFPU-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229940083898 barium chromate Drugs 0.000 claims abstract description 12
- 239000000126 substance Substances 0.000 claims abstract description 12
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000011230 binding agent Substances 0.000 claims abstract description 8
- 229910052751 metal Inorganic materials 0.000 claims abstract description 8
- 239000002184 metal Substances 0.000 claims abstract description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000000203 mixture Substances 0.000 claims description 7
- BZSXEZOLBIJVQK-UHFFFAOYSA-N 2-methylsulfonylbenzoic acid Chemical compound CS(=O)(=O)C1=CC=CC=C1C(O)=O BZSXEZOLBIJVQK-UHFFFAOYSA-N 0.000 claims description 6
- 239000005995 Aluminium silicate Substances 0.000 claims description 5
- 235000012211 aluminium silicate Nutrition 0.000 claims description 5
- 239000004927 clay Substances 0.000 claims description 5
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 4
- 238000003825 pressing Methods 0.000 claims description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 2
- 239000000919 ceramic Substances 0.000 claims description 2
- VKJKEPKFPUWCAS-UHFFFAOYSA-M potassium chlorate Chemical compound [K+].[O-]Cl(=O)=O VKJKEPKFPUWCAS-UHFFFAOYSA-M 0.000 claims description 2
- XTEGARKTQYYJKE-UHFFFAOYSA-N chloric acid Chemical class OCl(=O)=O XTEGARKTQYYJKE-UHFFFAOYSA-N 0.000 claims 1
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 abstract description 30
- 238000002485 combustion reaction Methods 0.000 abstract description 5
- 239000007789 gas Substances 0.000 abstract description 5
- 239000003380 propellant Substances 0.000 abstract description 4
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 abstract description 3
- 229910000861 Mg alloy Inorganic materials 0.000 abstract description 2
- -1 barium chromate-chlorate-calcium-magnesium Chemical compound 0.000 abstract description 2
- 239000003054 catalyst Substances 0.000 abstract description 2
- 238000000354 decomposition reaction Methods 0.000 abstract description 2
- 239000000395 magnesium oxide Substances 0.000 abstract description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 abstract description 2
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 abstract description 2
- 238000006243 chemical reaction Methods 0.000 description 13
- IWOUKMZUPDVPGQ-UHFFFAOYSA-N barium nitrate Chemical compound [Ba+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O IWOUKMZUPDVPGQ-UHFFFAOYSA-N 0.000 description 10
- 239000007787 solid Substances 0.000 description 10
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 description 8
- 238000001514 detection method Methods 0.000 description 8
- ZJRXSAYFZMGQFP-UHFFFAOYSA-N barium peroxide Chemical compound [Ba+2].[O-][O-] ZJRXSAYFZMGQFP-UHFFFAOYSA-N 0.000 description 6
- FTAHXGPNHBWWDP-UHFFFAOYSA-N carbon monoxide Chemical compound [O+]#[C-].[O+]#[C-] FTAHXGPNHBWWDP-UHFFFAOYSA-N 0.000 description 4
- 238000000227 grinding Methods 0.000 description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 229910052593 corundum Inorganic materials 0.000 description 3
- XLYOFNOQVPJJNP-ZSJDYOACSA-N heavy water Substances [2H]O[2H] XLYOFNOQVPJJNP-ZSJDYOACSA-N 0.000 description 3
- 229910001845 yogo sapphire Inorganic materials 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 238000007603 infrared drying Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 231100000053 low toxicity Toxicity 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B13/00—Oxygen; Ozone; Oxides or hydroxides in general
- C01B13/02—Preparation of oxygen
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B13/00—Oxygen; Ozone; Oxides or hydroxides in general
- C01B13/02—Preparation of oxygen
- C01B13/0203—Preparation of oxygen from inorganic compounds
- C01B13/0218—Chlorate
Abstract
The invention discloses a propellant for an oxygen candle and a preparation method thereof. The disclosed transfer powder is prepared from 70-90 parts by mass of barium chromate, 5-15 parts by mass of a metal simple substance, 3-10 parts by mass of a binder and 0-5 parts by mass of chlorate. The preparation method comprises the following steps: the barium chromate, the metal simple substance, the binder and the chlorate with the formula amount are pressed to prepare the barium chromate-chlorate-calcium-magnesium alloy. In the invention, the magnesium powder or the aluminum powder is used for replacing zirconium powder, the magnesium oxide on the surface of the magnesium powder is a catalyst for decomposing chlorate, the decomposition temperature is reduced, harmful gas nitrogen oxides generated by a fire cap of the exciter are quickly combusted and absorbed, and meanwhile, combustion residues are loose and do not expand, thereby being safe and reliable.
Description
Technical Field
The invention relates to an oxygen candle technology, in particular to a propellant for an oxygen candle.
Background
At present, zirconium powder is generally used as a main raw material in a solid oxygen generator in China, barium nitrate or barium peroxide is used as an oxidant, and the barium nitrate or barium peroxide is limited by components of the barium nitrate or barium peroxide, so that the ignition performance of the barium nitrate or barium peroxide is unstable, and meanwhile, the barium nitrate or barium peroxide is easy to absorb moisture and deteriorate, the barium peroxide is easy to decompose, and the like, so that the product cannot be stored for a long time.
Disclosure of Invention
Aiming at the defects or shortcomings of the prior art, the invention aims to provide a propellant for an oxygen candle.
The transfer powder for the oxygen candle is prepared from 70-90 parts by mass of barium chromate, 5-15 parts by mass of metal simple substance, 3-10 parts by mass of binder and 0-5 parts by mass of chlorate.
The metal simple substance is one or a mixture of more than two of magnesium powder, aluminum powder, titanium powder and iron powder;
the binder is one or a mixture of more than two of kaolin, diatomite and ceramic clay;
the chlorate of the invention is one or a mixture of two of sodium chlorate and potassium chlorate.
The invention also provides a preparation method of the propellant for the oxygen candle. The preparation method comprises the following steps: the barium chromate, the metal simple substance, the binder and the chlorate with the formula amount are pressed to prepare the barium chromate-chlorate-calcium-magnesium alloy. Further, the pressing pressure is 0.15-0.25T/cm2。
The invention has the beneficial effects that:
1. in the invention, the magnesium powder or the aluminum powder is used for replacing zirconium powder, the magnesium oxide on the surface of the magnesium powder is a catalyst for decomposing chlorate, the decomposition temperature is reduced, harmful gas nitrogen oxides generated by a fire cap of the exciter are quickly combusted and absorbed, and meanwhile, combustion residues are loose and do not expand, thereby being safe and reliable.
2. The barium chromate powder is added into the powder, is a fire retardant, and is beneficial to stable combustion of the transfer powder without explosion.
3. On the premise of the same heat production quantity, the required quantity of the ignition powder in the prior art is 2-3 g, the ignition time is about 7 seconds, the solid oxygen-generating and transfer powder is easy to ignite, the sensitivity performance is good, the required quantity of the ignition powder is 0.5-0.6 g, and the ignition time is about 2 seconds.
4. The solid oxygen-producing and fire-transmitting powder has the advantages of easily available raw materials and low toxicity.
5. The solid transfer powder is convenient to produce and process.
Detailed Description
Example 1:
| chemical name | Molecular formula | Status of state | Mass portion of |
| Barium chromate | BaCrO4 | Powder of | 80 |
| Magnesium powder | Mg | Superfine grinding machine | 10 |
| Kaolin clay | Al2O3·2SiO2·2H2O | Powder of | 5 |
| Sodium chlorate | NaClO3 | Powder of | 5 |
The experimental results are as follows:
the developed solid oxygen-producing and fire-transmitting powder is easy to ignite, stable in reaction, and capable of igniting oxygen candle within 2 s.
Example 2:
| chemical name | Molecular formula | Status of state | Mass portion of |
| Barium chromate | BaCrO4 | Powder of | 84 |
| Magnesium powder | Mg | Superfine grinding machine | 10 |
| Kaolin clay | Al2O3·2SiO2·2H2O | Powder of | 4 |
| Sodium chlorate | NaClO3 | Powder of | 2 |
The experimental results are as follows:
the developed solid oxygen-producing and fire-transmitting powder is easy to ignite, stable in reaction, and capable of igniting oxygen candle within 2.5 s.
| Test item | Detection method | The result of the detection | Standard of merit |
| Nitrogen oxides | Nitrogen oxygenChemical substance detecting tube | 1.5ppm | AQ-1057 |
| Carbon monoxide | Carbon monoxide detecting tube | 73ppm | AQ-1057 |
| Chlorine gas | Chlorine gas detecting tube | 0ppm | AQ-1057 |
| Extent of reaction | Vision | The reaction is stable | - |
| Temperature of | Surface thermometer | 450±2℃ | - |
| Ignition time | Stopwatch | 2.5s | - |
Example 3:
the experimental results are as follows:
the developed solid oxygen-producing and fire-transmitting powder is easy to ignite, stable in reaction, and capable of igniting oxygen candle within 2.6 s.
| Test item | Detection method | The result of the detection | Standard of merit |
| Nitrogen oxides | Nitrogen oxide detecting tube | 1.5ppm | AQ-1057 |
| Carbon monoxide | Carbon monoxide detecting tube | 73ppm | AQ-1057 |
| Chlorine gas | Chlorine gas detecting tube | 0ppm | AQ-1057 |
| Extent of reaction | Vision | The reaction is stable | - |
| Temperature of | Surface thermometer | 450±2℃ | - |
| Ignition time | Stopwatch | 2.6s | - |
Example 4:
the experimental results are as follows:
the developed solid oxygen-producing and fire-transmitting powder is easy to ignite, stable in reaction, and capable of igniting oxygen candle within 2.0 s.
| Test item | Detection method | The result of the detection | Standard of merit |
| Nitrogen oxides | Nitrogen oxide detecting tube | 1.5ppm | AQ-1057 |
| Carbon monoxide | Carbon monoxide detecting tube | 73ppm | AQ-1057 |
| Chlorine gas | Chlorine gas detecting tube | 0ppm | AQ-1057 |
| Extent of reaction | Vision | The reaction is stable | - |
| Temperature of | Surface thermometer | 450±2℃ | - |
| Ignition time | Stopwatch | 2.0s | - |
Example 5:
| chemical name | Molecular formula | Status of state | Mass portion of |
| Barium chromate | BaCrO4 | Powder of | 90 |
| Magnesium powder | Mg | Superfine grinding machine | 3 |
| Aluminum powder | Al | Superfine grinding machine | 2 |
| Kaolin clay | Al2O3·2SiO2·2H2O | Powder of | 2 |
| Sodium chlorate | NaClO3 | Powder of | 3 |
The experimental results are as follows:
the developed solid oxygen-producing and fire-transmitting powder is easy to ignite, stable in reaction, and capable of igniting oxygen candle within 3.1 s.
| Test item | Detection method | The result of the detection | Standard of merit |
| Nitrogen oxides | Nitrogen oxide detecting tube | 1.5ppm | AQ-1057 |
| Carbon monoxide | Carbon monoxide detecting tube | 73ppm | AQ-1057 |
| Chlorine gas | Chlorine gas detecting tube | 0ppm | AQ-1057 |
| Extent of reaction | Vision | The reaction is stable | - |
| Temperature of | Surface thermometer | 450±2℃ | - |
| Ignition time | Stopwatch | 3.1s | - |
The transfer powder of the above examples 1 to 5 was prepared as follows:
firstly, barium chromate is dehydrated and dried at the temperature of 80 ℃, chlorate is dried for 1 hour at the temperature of 110 +/-5 ℃ by a far infrared drying oven, and is ground to be more than 80 meshes by a grinder. Then weighing and mixing the treated sodium chlorate, barium chromate and other materials according to a certain proportion for 30min, uniformly mixing, pressing into a cylinder with phi of 10mm and H of 5mm by a tablet press with the pressure of 0.2T/cm2. The prepared solid oxygen-making transfer powder is put in a reactor, ignited by a fire cap, the generated gas is collected, and the gas components are detected.
The invention is beneficial to the stable combustion of the transfer powder without explosion, has good preparation manufacturability, is convenient for production and processing, can quickly combust and absorb harmful gas nitrogen oxides generated by the fire cap of the exciter, has loose and no expansion of combustion residues, is safe and reliable, and meets the requirement of long-term storage.
Claims (4)
1. The transfer powder for the oxygen candle is characterized by being prepared from 70-90 parts by mass of barium chromate, 5-15 parts by mass of a metal simple substance, 3-10 parts by mass of a binder and 0-5 parts by mass of chlorate; the metal simple substance is one or a mixture of more than two of magnesium powder, aluminum powder, titanium powder and iron powder; the binder is one or a mixture of more than two of kaolin, diatomite and ceramic clay.
2. The pyrotechnic charge for oxygen candle as in claim 1, wherein the chlorate salt is one or a mixture of sodium chlorate and potassium chlorate.
3. A method for preparing a pyrotechnic composition for an oxygen candle as recited in claim 1, wherein the method comprises: barium chromate, metal simple substance, binder and chlorate with the formula amount are pressed into the powder for the oxygen candle.
4. The method for preparing a transfer charge for an oxygen candle as set forth in claim 3, wherein the pressing pressure is 0.15-0.25T/cm2。
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711482176.5A CN108083235B (en) | 2017-12-29 | 2017-12-29 | Transfer powder for oxygen candle and preparation method thereof |
| PCT/CN2018/111883 WO2019128427A1 (en) | 2017-12-29 | 2018-10-25 | Oxygen candle starting mix and preparation method therefor |
| CH00786/20A CH715622B1 (en) | 2017-12-29 | 2018-10-25 | Propellant for oxygen candles and its manufacturing process. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711482176.5A CN108083235B (en) | 2017-12-29 | 2017-12-29 | Transfer powder for oxygen candle and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108083235A CN108083235A (en) | 2018-05-29 |
| CN108083235B true CN108083235B (en) | 2021-03-16 |
Family
ID=62180875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711482176.5A Active CN108083235B (en) | 2017-12-29 | 2017-12-29 | Transfer powder for oxygen candle and preparation method thereof |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN108083235B (en) |
| CH (1) | CH715622B1 (en) |
| WO (1) | WO2019128427A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108083235B (en) * | 2017-12-29 | 2021-03-16 | 陕西斯达防爆安全科技股份有限公司 | Transfer powder for oxygen candle and preparation method thereof |
| CN111252738A (en) * | 2020-01-21 | 2020-06-09 | 陕西斯达防爆安全科技股份有限公司 | Oxygen candle medicine |
| CN114890853A (en) * | 2022-05-31 | 2022-08-12 | 山西启安诺华科技有限公司 | Ignition powder for preparing solid oxygen candle by chemical precipitation method |
| CN114804987B (en) * | 2022-05-31 | 2023-04-28 | 山西启安诺华科技有限公司 | Ignition powder for acid-base interposed solid oxygen candle and preparation method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3725156A (en) * | 1971-04-28 | 1973-04-03 | Life Support | Ignition composition initiated by water |
| US3972673A (en) * | 1974-09-23 | 1976-08-03 | General Electric Company | Photoflash lamp |
| CN85107420A (en) * | 1985-09-28 | 1987-09-09 | 国营第四七四厂 | The second delay detonator low-toxicity delay composition |
| CN1054132A (en) * | 1990-02-07 | 1991-08-28 | 恩赛-比克福德公司 | Delay train ignition buffer |
| CN201161307Y (en) * | 2008-01-18 | 2008-12-10 | 南京理工大学 | Wire dragging type time-delay cutting apparatus |
| CN103213948A (en) * | 2012-12-12 | 2013-07-24 | 湖北航天化学技术研究所 | Temperature-insensitive oxygen candle |
| CN204663702U (en) * | 2015-05-19 | 2015-09-23 | 北方特种能源集团有限公司西安庆华公司 | The small-sized anti-wink ignition flame Dark Ignition device of a kind of resistance to high gun pressure high overload |
| CN104987271A (en) * | 2015-04-24 | 2015-10-21 | 安徽雷鸣科化股份有限公司 | Large inner tube type long time delay |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5942423B2 (en) * | 1978-07-12 | 1984-10-15 | 松下電器産業株式会社 | Method for manufacturing thermal batteries and their exothermic agents |
| RO98546B1 (en) * | 1987-08-19 | 1990-03-30 | Thermogene elements for starting primary thermal piles and process for obtaining the same | |
| CN207861890U (en) * | 2017-12-29 | 2018-09-14 | 陕西斯达防爆安全科技股份有限公司 | A kind of oxygen candle starter and oxygen candle |
| CN108083235B (en) * | 2017-12-29 | 2021-03-16 | 陕西斯达防爆安全科技股份有限公司 | Transfer powder for oxygen candle and preparation method thereof |
| CN107892277B (en) * | 2017-12-29 | 2023-08-15 | 陕西斯达防爆安全科技股份有限公司 | Oxygen candle |
| CN108083234B (en) * | 2017-12-29 | 2020-11-13 | 陕西斯达防爆安全科技股份有限公司 | Oxygen candle medicine |
-
2017
- 2017-12-29 CN CN201711482176.5A patent/CN108083235B/en active Active
-
2018
- 2018-10-25 CH CH00786/20A patent/CH715622B1/en not_active IP Right Cessation
- 2018-10-25 WO PCT/CN2018/111883 patent/WO2019128427A1/en active Application Filing
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3725156A (en) * | 1971-04-28 | 1973-04-03 | Life Support | Ignition composition initiated by water |
| US3972673A (en) * | 1974-09-23 | 1976-08-03 | General Electric Company | Photoflash lamp |
| CN85107420A (en) * | 1985-09-28 | 1987-09-09 | 国营第四七四厂 | The second delay detonator low-toxicity delay composition |
| CN1054132A (en) * | 1990-02-07 | 1991-08-28 | 恩赛-比克福德公司 | Delay train ignition buffer |
| CN201161307Y (en) * | 2008-01-18 | 2008-12-10 | 南京理工大学 | Wire dragging type time-delay cutting apparatus |
| CN103213948A (en) * | 2012-12-12 | 2013-07-24 | 湖北航天化学技术研究所 | Temperature-insensitive oxygen candle |
| CN104987271A (en) * | 2015-04-24 | 2015-10-21 | 安徽雷鸣科化股份有限公司 | Large inner tube type long time delay |
| CN204663702U (en) * | 2015-05-19 | 2015-09-23 | 北方特种能源集团有限公司西安庆华公司 | The small-sized anti-wink ignition flame Dark Ignition device of a kind of resistance to high gun pressure high overload |
Also Published As
| Publication number | Publication date |
|---|---|
| CH715622B1 (en) | 2022-01-14 |
| CN108083235A (en) | 2018-05-29 |
| WO2019128427A1 (en) | 2019-07-04 |
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Denomination of invention: A kind of propellant for oxygen candle and preparation method thereof Effective date of registration: 20220920 Granted publication date: 20210316 Pledgee: Pudong Development Bank of Shanghai Limited by Share Ltd. Xi'an branch Pledgor: SHAANXI STAR EXPLOSION SAFETY POLYTRON TECHNOLOGIES Inc. Registration number: Y2022610000608 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20210316 Pledgee: Pudong Development Bank of Shanghai Limited by Share Ltd. Xi'an branch Pledgor: SHAANXI STAR EXPLOSION SAFETY POLYTRON TECHNOLOGIES Inc. Registration number: Y2022610000608 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A transfer gunpowder for oxygen candles and its preparation method Granted publication date: 20210316 Pledgee: Pudong Development Bank of Shanghai Limited by Share Ltd. Xi'an branch Pledgor: SHAANXI STAR EXPLOSION SAFETY POLYTRON TECHNOLOGIES Inc. Registration number: Y2024980010866 |