EP0332986B1 - Verzögerungssätze mit langen Verzögerungszeiten - Google Patents
Verzögerungssätze mit langen Verzögerungszeiten Download PDFInfo
- Publication number
- EP0332986B1 EP0332986B1 EP89103961A EP89103961A EP0332986B1 EP 0332986 B1 EP0332986 B1 EP 0332986B1 EP 89103961 A EP89103961 A EP 89103961A EP 89103961 A EP89103961 A EP 89103961A EP 0332986 B1 EP0332986 B1 EP 0332986B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- delay
- charges
- weight
- barium
- tungsten
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 12
- 239000010937 tungsten Substances 0.000 claims abstract description 12
- 229910001487 potassium perchlorate Inorganic materials 0.000 claims abstract description 9
- QFFVPLLCYGOFPU-UHFFFAOYSA-N barium chromate Chemical compound [Ba+2].[O-][Cr]([O-])(=O)=O QFFVPLLCYGOFPU-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229940083898 barium chromate Drugs 0.000 claims abstract description 8
- AXZAYXJCENRGIM-UHFFFAOYSA-J dipotassium;tetrabromoplatinum(2-) Chemical compound [K+].[K+].[Br-].[Br-].[Br-].[Br-].[Pt+2] AXZAYXJCENRGIM-UHFFFAOYSA-J 0.000 claims abstract description 8
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 claims abstract description 7
- 229910001634 calcium fluoride Inorganic materials 0.000 claims abstract description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 16
- -1 barium hexafluorosilicate Chemical compound 0.000 claims description 8
- 229910052681 coesite Inorganic materials 0.000 claims description 6
- 229910052906 cristobalite Inorganic materials 0.000 claims description 6
- 239000000377 silicon dioxide Substances 0.000 claims description 6
- 235000012239 silicon dioxide Nutrition 0.000 claims description 6
- 229910052682 stishovite Inorganic materials 0.000 claims description 6
- 229910052905 tridymite Inorganic materials 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims 2
- 239000012255 powdered metal Substances 0.000 claims 1
- 239000000203 mixture Substances 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 4
- 229910021485 fumed silica Inorganic materials 0.000 abstract description 4
- 239000000654 additive Substances 0.000 abstract description 3
- 230000035939 shock Effects 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 229910052788 barium Inorganic materials 0.000 abstract 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 abstract 1
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 4
- 239000002904 solvent Substances 0.000 description 3
- 239000005909 Kieselgur Substances 0.000 description 2
- 239000000020 Nitrocellulose Substances 0.000 description 2
- SMEGJBVQLJJKKX-HOTMZDKISA-N [(2R,3S,4S,5R,6R)-5-acetyloxy-3,4,6-trihydroxyoxan-2-yl]methyl acetate Chemical compound CC(=O)OC[C@@H]1[C@H]([C@@H]([C@H]([C@@H](O1)O)OC(=O)C)O)O SMEGJBVQLJJKKX-HOTMZDKISA-N 0.000 description 2
- 229940081735 acetylcellulose Drugs 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 229920002678 cellulose Polymers 0.000 description 2
- 229920002301 cellulose acetate Polymers 0.000 description 2
- 230000000875 corresponding effect Effects 0.000 description 2
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 description 2
- 229920001220 nitrocellulos Polymers 0.000 description 2
- 229910002012 Aerosil® Inorganic materials 0.000 description 1
- 150000007933 aliphatic carboxylic acids Chemical class 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 235000019260 propionic acid Nutrition 0.000 description 1
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B33/00—Compositions containing particulate metal, alloy, boron, silicon, selenium or tellurium with at least one oxygen supplying material which is either a metal oxide or a salt, organic or inorganic, capable of yielding a metal oxide
- C06B33/12—Compositions containing particulate metal, alloy, boron, silicon, selenium or tellurium with at least one oxygen supplying material which is either a metal oxide or a salt, organic or inorganic, capable of yielding a metal oxide the material being two or more oxygen-yielding compounds
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06C—DETONATING OR PRIMING DEVICES; FUSES; CHEMICAL LIGHTERS; PYROPHORIC COMPOSITIONS
- C06C5/00—Fuses, e.g. fuse cords
- C06C5/06—Fuse igniting means; Fuse connectors
Definitions
- the present invention relates to delay sets with delay times which are in the range of seconds and which are constructed from a pyrotechnic mixture of powdered metallic tungsten, barium chromate and potassium perchlorate.
- the delay sets even at a temperature of + 71 ° C have a certain delay time of at least 1.2 s / mm.
- the known deceleration rates based on tungsten / BaCrO4 / KClO4 still burn off perfectly even if they are subjected to a rotation of up to 17,000 rpm. Correct burning can still take place even with a rotation of more than 17,000 rpm.
- the loads mentioned can also be used in the temperature range between - 54 ° C and + 71 ° C, whereby a perfect burnout is guaranteed within the desired delay time.
- a delay set which additionally contains calcium fluoride and finely disperse diatomaceous earth on the basis of powdered metallic tungsten, barium chromate and potassium perchlorate, but the effect is improved according to the invention if the delay set instead of diatomaceous earth finely disperse SiO2 with specific surface areas from 100 to 500 m2 / g, preferably from 200 to 400 m2 / g, in particular in the form of pyrogenic silica. An addition of only 0.1 to 5% by weight, based on the entire set, is sufficient to achieve a corresponding effect.
- the effect is further improved if finely dispersed SiO2 with specific surfaces from 100 to 500 m2 / g, preferably from 200 to 400 m2 / g, in particular in the form of pyrogenic silica, is added to the retardation rate. It is also sufficient to add only 0.1 to 5% by weight, based on the entire set, in order to achieve a corresponding effect.
- the amount of barium hexafluorosilicate (BaSiF6) or calcium fluoride (CaF2) added can vary between 1 and 10% by weight, based on the entire set.
- the barium hexafluorosilicate is preferably used in amounts between 2 and 6% by weight, while the calcium fluoride is preferably used in amounts between 1 and 5% by weight, in each case based on the entire set.
- the delay sets according to the invention can be used both in powder form and in bound form.
- Inorganic or organic cellulose esters such as nitrocellulose, acetyl cellulose or cellulose esters of higher aliphatic carboxylic acids (e.g. butteric or propionic acid), the latter optionally in a mixture with acetyl cellulose, are suitable as binders to increase the flowability of the sets.
- Their proportion in the delay rates is generally between 0.5 and 3% by weight.
- the burning time of the delay sets according to the invention can be set in a manner known per se by varying the ratios of the component proportions to values between 0.1 and 2 s / mm, preferably to values above 0.8 s / mm set height.
- the grain size of the tungsten used is generally less than 20 ⁇ m.
- the burning times can also be set to the desired values within small ranges. This can be achieved in particular if two different grain size ranges are selected, the fraction of the grain size range ⁇ 10 ⁇ m being between 20 and 60% by weight of the total tungsten powder; the rest of the tungsten powder should then have a grain size between 10 and 20 microns.
- the sets according to the invention are produced in a manner known per se.
- the unbound sets can be made by simultaneously mixing the individual components. If binders are also used, these are dissolved or suspended in a suitable solvent (e.g. acetone) and the remaining constituents are dispersed in this solution or suspension. The dispersion obtained is then largely freed from the solvent, so that it is possible to produce free-flowing grains in a manner known per se, which are then compressed to the desired sets.
- a suitable solvent e.g. acetone
- the sentences according to the invention are u. used for delayed detonators and igniters and for ignition retarders.
- the pressed-in delay sets were ignited by a firing set.
- the burning times were measured at temperatures + 71 ° C or 20 ° C or - 54 ° C with and without rotation.
- the results are shown in the following table: Temperature [° C] Burning times [sec / 10 mm charging station] without rotation with rotation (17,000 rpm) + 71 12.5 15.5 + 20 13 16 - 54 15 18.5
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Silicon Compounds (AREA)
- Dram (AREA)
- Ultra Sonic Daignosis Equipment (AREA)
- Air Bags (AREA)
- Glass Compositions (AREA)
- Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
- Networks Using Active Elements (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Electrotherapy Devices (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Primary Cells (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Developing Agents For Electrophotography (AREA)
- Dental Preparations (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT89103961T ATE93504T1 (de) | 1988-03-12 | 1989-03-07 | Verzoegerungssaetze mit langen verzoegerungszeiten. |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3808366A DE3808366A1 (de) | 1988-03-12 | 1988-03-12 | Verzoegerungssaetze mit langen verzoegerungszeiten |
| DE3808366 | 1988-03-12 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0332986A1 EP0332986A1 (de) | 1989-09-20 |
| EP0332986B1 true EP0332986B1 (de) | 1993-08-25 |
Family
ID=6349629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP89103961A Expired - Lifetime EP0332986B1 (de) | 1988-03-12 | 1989-03-07 | Verzögerungssätze mit langen Verzögerungszeiten |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US4963204A (es) |
| EP (1) | EP0332986B1 (es) |
| AT (1) | ATE93504T1 (es) |
| DE (2) | DE3808366A1 (es) |
| ES (1) | ES2042830T3 (es) |
| IL (1) | IL89570A (es) |
| NO (1) | NO170006C (es) |
| TR (1) | TR25308A (es) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8118956B2 (en) | 2006-09-20 | 2012-02-21 | Ael Mining Services Limited | Manufacture of pyrotechnic time delay compositions |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2706449B1 (fr) * | 1993-06-18 | 1995-08-11 | Giat Ind Sa | Composition pyrotechnique pour cordeaux retards. |
| CL2007002676A1 (es) * | 2006-09-20 | 2008-02-22 | African Explosives Ltd | Proceso para producir composicion pirotecnica de retardo que comprende mezclar oxidante, combustible, surfactante y liquido para formar una pasta o suspension, secar la pasta o suspension para eliminar liquido y obtener un producto solido, tomar el p |
| CN104045496A (zh) * | 2014-07-03 | 2014-09-17 | 广东明华机械有限公司 | 一种用于雷管的钨系延期药及其应用 |
| CN104987271A (zh) * | 2015-04-24 | 2015-10-21 | 安徽雷鸣科化股份有限公司 | 一种大内管式高段别延期体 |
| DE102015014821A1 (de) | 2015-11-18 | 2017-05-18 | Rheinmetall Waffe Munition Gmbh | REACh konformer pyrotechnischer Verzögerungs- und Anzündsatz mit variabel einstellbaren Leistungsparametern |
| RU2744583C1 (ru) * | 2020-07-19 | 2021-03-11 | Акционерное общество «Муромец» | Пиротехническая замедляющая композиция (варианты) |
| CN114963528B (zh) * | 2021-06-29 | 2023-08-18 | 青岛海尔新能源电器有限公司 | 冷媒检测方法、装置、设备及存储介质 |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE661797C (de) * | 1933-09-14 | 1938-06-28 | August Brandt | Pyrotechnischer Presskoerper |
| FR1128524A (fr) * | 1954-04-23 | 1957-01-07 | Ici Ltd | Compositions fusantes à retard et objets en comportant |
| US3028229A (en) * | 1958-08-27 | 1962-04-03 | Universal Match Corp | Pyrotechnic compositions |
| US3172795A (en) * | 1961-01-27 | 1965-03-09 | Exothermic refractory materials con- taining oxidizing agents and process | |
| US3701697A (en) * | 1971-05-27 | 1972-10-31 | Us Navy | Pressure compensated pyrotechnic time delay composition |
| US3726730A (en) * | 1972-03-20 | 1973-04-10 | Us Navy | Pyrotechnic delay composition containing heavy metal soap |
| US4008109A (en) * | 1975-07-01 | 1977-02-15 | Chemincon Incorporated | Shaped heat insulating articles |
| US4239004A (en) * | 1976-07-08 | 1980-12-16 | Systems, Science & Software | Delay detonator device |
| FR2464932A1 (fr) * | 1979-09-06 | 1981-03-20 | Poudres & Explosifs Ste Nale | Cordeau-retard a vitesse de combustion lente et a faible diametre |
| CA1132355A (en) * | 1980-12-02 | 1982-09-28 | Joseph E.G. Couture | Peripheral burning incendiary device |
| DE8227583U1 (de) * | 1982-10-01 | 1987-06-25 | Bayern-Chemie Gesellschaft für flugchemische Antriebe mbH, 8261 Aschau | Infrarot-Leuchtsatz |
-
1988
- 1988-03-12 DE DE3808366A patent/DE3808366A1/de active Granted
-
1989
- 1989-03-07 AT AT89103961T patent/ATE93504T1/de not_active IP Right Cessation
- 1989-03-07 ES ES89103961T patent/ES2042830T3/es not_active Expired - Lifetime
- 1989-03-07 DE DE89103961T patent/DE58905351D1/de not_active Expired - Fee Related
- 1989-03-07 EP EP89103961A patent/EP0332986B1/de not_active Expired - Lifetime
- 1989-03-08 TR TR89/0205A patent/TR25308A/xx unknown
- 1989-03-08 US US07/320,772 patent/US4963204A/en not_active Expired - Lifetime
- 1989-03-10 IL IL89570A patent/IL89570A/xx not_active IP Right Cessation
- 1989-03-10 NO NO891040A patent/NO170006C/no unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8118956B2 (en) | 2006-09-20 | 2012-02-21 | Ael Mining Services Limited | Manufacture of pyrotechnic time delay compositions |
Also Published As
| Publication number | Publication date |
|---|---|
| NO170006B (no) | 1992-05-25 |
| NO891040L (no) | 1989-09-13 |
| DE3808366C2 (es) | 1990-02-08 |
| DE58905351D1 (de) | 1993-09-30 |
| TR25308A (tr) | 1992-12-22 |
| IL89570A (en) | 1993-02-21 |
| EP0332986A1 (de) | 1989-09-20 |
| ATE93504T1 (de) | 1993-09-15 |
| DE3808366A1 (de) | 1989-10-05 |
| NO891040D0 (no) | 1989-03-10 |
| US4963204A (en) | 1990-10-16 |
| NO170006C (no) | 1992-09-02 |
| ES2042830T3 (es) | 1993-12-16 |
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