EP0061638A1 - Utilisation d'emballage sous vide pour emballer des amalgames alumino-thermiques - Google Patents
Utilisation d'emballage sous vide pour emballer des amalgames alumino-thermiques Download PDFInfo
- Publication number
- EP0061638A1 EP0061638A1 EP82102057A EP82102057A EP0061638A1 EP 0061638 A1 EP0061638 A1 EP 0061638A1 EP 82102057 A EP82102057 A EP 82102057A EP 82102057 A EP82102057 A EP 82102057A EP 0061638 A1 EP0061638 A1 EP 0061638A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- aluminothermic
- packaging
- mixtures
- mixture
- vacuum
- 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.)
- Withdrawn
Links
- 239000000203 mixture Substances 0.000 title claims abstract description 39
- 239000011888 foil Substances 0.000 title description 2
- 238000012856 packing Methods 0.000 title 1
- 238000004806 packaging method and process Methods 0.000 claims abstract description 28
- 239000002245 particle Substances 0.000 abstract description 5
- 239000000843 powder Substances 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 description 10
- 238000005204 segregation Methods 0.000 description 6
- 238000003466 welding Methods 0.000 description 5
- 239000000376 reactant Substances 0.000 description 4
- 239000000956 alloy Substances 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 3
- 238000007133 aluminothermic reaction Methods 0.000 description 3
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 3
- 239000011230 binding agent Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 229920001169 thermoplastic Polymers 0.000 description 3
- 239000004416 thermosoftening plastic Substances 0.000 description 3
- 241000723377 Coffea Species 0.000 description 2
- 240000007154 Coffea arabica Species 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 235000013305 food Nutrition 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 239000005022 packaging material Substances 0.000 description 2
- 239000002985 plastic film Substances 0.000 description 2
- 229920006255 plastic film Polymers 0.000 description 2
- 239000011541 reaction mixture Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 238000009461 vacuum packaging Methods 0.000 description 2
- 244000105624 Arachis hypogaea Species 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical class [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000013590 bulk material Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000002655 kraft paper Substances 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000012785 packaging film Substances 0.000 description 1
- 229920006280 packaging film Polymers 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 235000020232 peanut Nutrition 0.000 description 1
- 238000005453 pelletization Methods 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical group [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B31/00—Packaging articles or materials under special atmospheric or gaseous conditions; Adding propellants to aerosol containers
Definitions
- Aluminothermic mixtures consist of finely divided aluminum and Schwenoetalloxid, the mixture to dampen the reaction and / or to form an alloy during the reaction further finely divided metals, metal oxides or other alloy elements, such as Iron filings, copper, copper oxides, chromium, manganese, carbon or the like can be added.
- the reactants contained in the aluminothermic mixture In order to achieve a uniform reaction and to control it in a controlled manner, it is necessary for the reactants contained in the aluminothermic mixture to be present within a predetermined particle size range and with a desired particle size distribution.
- the different specific weights of the reactants in the aluminothermal mixture as well as their specific particle shape cause changes in the optimally adjusted mixing ratio of the reactants within a packaging unit during transport and storage, especially with shaking stress, which cannot be excluded during loading and transport , e.g. a cloth bag containing 7 to 15 kg of aluminothermic mixture as the usual packaging form for aluminothermic welding compounds for performing aluminothermic rail welds.
- the invention is based on the object of finding a simple solution to the problem of preventing segregation of the aluminothermic mixtures which are optimally mixed during production, without the need to add substances to the mixture which remain in the aluminothermic reaction or which interfere in the event of remaining.
- the bulk density of the reaction mixture should not be reduced. All application properties of the aluminothermic mixture should remain unchanged.
- this object can be achieved in a surprising manner by using the vacuum film packaging of aluminothermic mixtures.
- this vacuum packaging which is known per se, to aluminothermic mixtures is given its inventive character in that a completely different and unforeseeable effect can be achieved with this type of packaging.
- aluminothermic mixture By packaging the aluminothermic mixture in a flexible container, in particular a bag or sack made of plastic film, which, after evacuation, wraps tightly around and encloses the aluminothermic mixture, the aluminothermic mixture is pressed together and solidified in such a way that by shaking during transportation and storage e nt mix optimally mixed in the production aluminothermic mixture no longer takes place.
- Vacuum film packaging is therefore particularly suitable for aluminothermic mixtures if they have to be transported over long distances using different means of transport.
- Such long transport routes are quite common when sending aluminothermic mixtures, since these mixtures are produced in specialized companies, whereby the place of manufacture and the place of use can be quite far apart.
- These mixtures are transported by motor vehicle, rail, ship and occasionally by plane.
- the majority of the aluminothermic mixtures are used for rail connection welding in railway tracks.
- the aluminothermic mixtures must therefore be transported to the track to be welded on construction site vehicles immediately before they are used. It is understandable that with these transport stresses, segregation of aluminothermic mixtures in a packaging of a conventional type, e.g. in linen bags, could not be avoided. This segregation is favored by the fact that the components of the mixture have very different specific weights and different particle sizes and shapes.
- Packaging films known from the prior art in particular thermoplastic films, can be used to produce the packaging units. You just have to meet the condition that they enable essentially vacuum-tight packaging. Suitable films are, in particular, films made of polyethylene, film thicknesses of 0.1 to 0.3 mm being preferred. Thermoplastic films have the advantage that they can be sealed in a vacuum-tight manner by welding.
- the films can be wrapped with additional packaging material, e.g. Paper, such as sodium kraft paper, may be laminated.
- additional packaging material e.g. Paper, such as sodium kraft paper
- the packaging material must be flexible so that when the vacuum is applied it lies tightly around the aluminothermic mixture and clings to it.
- the aluminothermic mixture is first filled into a bag formed from the film and the bag is sealed airtight after the vacuum has been applied.
- the packaging unit thus obtained can then be additionally shrunk by heating with warm air or by placing it in a heated liquid such as water.
- the aluminothermic mixture packaged according to the invention is solidified into a hard, rigid block, from which the aluminothermic mixture can be obtained in a poured shape after the vacuum packaging has been opened.
Landscapes
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Packages (AREA)
- Wrappers (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19813111612 DE3111612A1 (de) | 1981-03-25 | 1981-03-25 | Anwendung der vakuumfolienverpackung zur abpackung aluminothermischer gemische |
| DE3111612 | 1981-03-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP0061638A1 true EP0061638A1 (fr) | 1982-10-06 |
Family
ID=6128171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP82102057A Withdrawn EP0061638A1 (fr) | 1981-03-25 | 1982-03-13 | Utilisation d'emballage sous vide pour emballer des amalgames alumino-thermiques |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0061638A1 (fr) |
| AU (1) | AU8121282A (fr) |
| DE (1) | DE3111612A1 (fr) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0449234A3 (en) * | 1990-03-28 | 1992-04-29 | Lothar Mansfeld | Process for pore formation in mortar |
| WO2006045575A1 (fr) * | 2004-10-26 | 2006-05-04 | Giesecke & Devrient Gmbh | Mélange de particules |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT269737B (de) * | 1965-01-07 | 1969-03-25 | Hoeganaes Ab | Behälter zum Verpacken eines Metallpulvers |
-
1981
- 1981-03-25 DE DE19813111612 patent/DE3111612A1/de not_active Withdrawn
-
1982
- 1982-03-09 AU AU81212/82A patent/AU8121282A/en not_active Withdrawn
- 1982-03-13 EP EP82102057A patent/EP0061638A1/fr not_active Withdrawn
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT269737B (de) * | 1965-01-07 | 1969-03-25 | Hoeganaes Ab | Behälter zum Verpacken eines Metallpulvers |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0449234A3 (en) * | 1990-03-28 | 1992-04-29 | Lothar Mansfeld | Process for pore formation in mortar |
| WO2006045575A1 (fr) * | 2004-10-26 | 2006-05-04 | Giesecke & Devrient Gmbh | Mélange de particules |
| RU2394690C2 (ru) * | 2004-10-26 | 2010-07-20 | Гизеке Унд Девриент Гмбх | Система для транспортировки смесей частиц и способ ее формирования |
Also Published As
| Publication number | Publication date |
|---|---|
| DE3111612A1 (de) | 1982-10-14 |
| AU8121282A (en) | 1982-09-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN |
|
| 17P | Request for examination filed |
Effective date: 19820325 |
|
| AK | Designated contracting states |
Designated state(s): AT BE CH DE FR GB IT LU NL SE |
|
| 18W | Application withdrawn |
Withdrawal date: 19820908 |
|
| RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: GUNTERMANN, HANS, DR. |