FR2376094A1 - HOT MOLDING PROCESS FOR DOUBLE-BASED PROPERGOL BLOCKS - Google Patents
HOT MOLDING PROCESS FOR DOUBLE-BASED PROPERGOL BLOCKSInfo
- Publication number
- FR2376094A1 FR2376094A1 FR7639455A FR7639455A FR2376094A1 FR 2376094 A1 FR2376094 A1 FR 2376094A1 FR 7639455 A FR7639455 A FR 7639455A FR 7639455 A FR7639455 A FR 7639455A FR 2376094 A1 FR2376094 A1 FR 2376094A1
- Authority
- FR
- France
- Prior art keywords
- mold
- blank
- punch
- double
- hot molding
- 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.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B21/00—Apparatus or methods for working-up explosives, e.g. forming, cutting, drying
- C06B21/0033—Shaping the mixture
- C06B21/0041—Shaping the mixture by compression
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02K—JET-PROPULSION PLANTS
- F02K9/00—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof
- F02K9/08—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof using solid propellants
- F02K9/24—Charging rocket engines with solid propellants; Methods or apparatus specially adapted for working solid propellant charges
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
Fabrication de blocs de propergols à double base par moulage à chaud. Procédé comportant a. la mise en place d'une ébauche de propergol dans un moule comprenant une cavité de moulage présentant une partie du profil extérieur de la pièce à obtenir et un poinçon mobile possédant le profil géometrique complémentaire de la pièce a. obtenir; b. la fermeture du moule, la mise en température du moule, du poinçon et de l'ébauche; c. le déplacement du poinçon dans ladite cavité de moulage pour comprimer et déformer l'ébauche à la forme de la pièce à obtenir et d. l'extraction de la pièce ainsi moulée, caractérisé en ce que, après la mise en place de l'ébauche, on ferme le moule de manière étanche et on fait le vide dans la cavité de moulage. Un tel procédé permet de travailler en toute sécurité, notamment à des températures supérieures à 85 degrés C.Manufacture of double base propellant blocks by hot molding. Method comprising a. the placing of a propellant blank in a mold comprising a molding cavity having part of the outer profile of the part to be obtained and a mobile punch having the complementary geometrical profile of part a. get; b. closing the mold, warming up the mold, the punch and the blank; vs. moving the punch in said mold cavity to compress and deform the blank to the shape of the part to be obtained and d. the extraction of the part thus molded, characterized in that, after the introduction of the blank, the mold is closed in a leaktight manner and a vacuum is created in the mold cavity. Such a process makes it possible to work in complete safety, especially at temperatures above 85 degrees C.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7639455A FR2376094A1 (en) | 1976-12-29 | 1976-12-29 | HOT MOLDING PROCESS FOR DOUBLE-BASED PROPERGOL BLOCKS |
YU293777A YU39625B (en) | 1976-12-29 | 1977-12-12 | Process for forming blocks of dibasic propergol by means of warm molding |
DE19772756670 DE2756670C2 (en) | 1976-12-29 | 1977-12-19 | Method and device for hot-forming dibasic propellant blocks |
IT6983377A IT1091375B (en) | 1976-12-29 | 1977-12-19 | PROCEDURE AND DEVICE FOR HOT MOLDING OF BLOCKS OF DOUBLE BASE PROPERGLES |
GB5400877A GB1580948A (en) | 1976-12-29 | 1977-12-23 | Hot moulding process for blocks of two-component propellants |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7639455A FR2376094A1 (en) | 1976-12-29 | 1976-12-29 | HOT MOLDING PROCESS FOR DOUBLE-BASED PROPERGOL BLOCKS |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2376094A1 true FR2376094A1 (en) | 1978-07-28 |
FR2376094B1 FR2376094B1 (en) | 1979-04-20 |
Family
ID=9181688
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7639455A Granted FR2376094A1 (en) | 1976-12-29 | 1976-12-29 | HOT MOLDING PROCESS FOR DOUBLE-BASED PROPERGOL BLOCKS |
Country Status (5)
Country | Link |
---|---|
DE (1) | DE2756670C2 (en) |
FR (1) | FR2376094A1 (en) |
GB (1) | GB1580948A (en) |
IT (1) | IT1091375B (en) |
YU (1) | YU39625B (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2442813A1 (en) * | 1978-06-27 | 1980-06-27 | Poudres & Explosifs Ste Nale | HOT MOLDING PROCESS FOR DOUBLE BASE PROPERGOL BLOCKS |
FR2442812A2 (en) * | 1978-06-27 | 1980-06-27 | Poudres & Explosifs Ste Nale | Hot-moulding of blocks of double-base propergol(s) - comprises dividing block into fractions and preheating before moulding, to reduce residence time in mould |
FR2672589A1 (en) * | 1991-02-11 | 1992-08-14 | Giat Ind Sa | Propellent charge of the powder sheet type, process for its manufacture and ammunition incorporating such a charge |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2607223C1 (en) * | 2015-07-20 | 2017-01-10 | Акционерное общество "Федеральный научно-производственный центр "Алтай" | Method of making composite solid rocket propellant charge |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3324206A (en) * | 1961-10-23 | 1967-06-06 | Aerojet General Co | Method of forming high energy solid fuel grain for a rocket |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3405201A (en) * | 1965-12-21 | 1968-10-08 | Standard Oil Co | Process for preparing propellant grain |
-
1976
- 1976-12-29 FR FR7639455A patent/FR2376094A1/en active Granted
-
1977
- 1977-12-12 YU YU293777A patent/YU39625B/en unknown
- 1977-12-19 IT IT6983377A patent/IT1091375B/en active
- 1977-12-19 DE DE19772756670 patent/DE2756670C2/en not_active Expired
- 1977-12-23 GB GB5400877A patent/GB1580948A/en not_active Expired
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3324206A (en) * | 1961-10-23 | 1967-06-06 | Aerojet General Co | Method of forming high energy solid fuel grain for a rocket |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2442813A1 (en) * | 1978-06-27 | 1980-06-27 | Poudres & Explosifs Ste Nale | HOT MOLDING PROCESS FOR DOUBLE BASE PROPERGOL BLOCKS |
FR2442812A2 (en) * | 1978-06-27 | 1980-06-27 | Poudres & Explosifs Ste Nale | Hot-moulding of blocks of double-base propergol(s) - comprises dividing block into fractions and preheating before moulding, to reduce residence time in mould |
FR2672589A1 (en) * | 1991-02-11 | 1992-08-14 | Giat Ind Sa | Propellent charge of the powder sheet type, process for its manufacture and ammunition incorporating such a charge |
Also Published As
Publication number | Publication date |
---|---|
FR2376094B1 (en) | 1979-04-20 |
IT1091375B (en) | 1985-07-06 |
YU39625B (en) | 1985-03-20 |
YU293777A (en) | 1982-10-31 |
DE2756670A1 (en) | 1978-07-13 |
GB1580948A (en) | 1980-12-10 |
DE2756670C2 (en) | 1983-05-26 |
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