METHOD OF ARMORING OF SOLID PROPELLANT CHARGES

• Main Authors: KUTSENKO G.V, LETOV B.P, KRASIL'NIKOV F.S, KOZ'JAKOV A.V, MOLCHANOV V.F
• Format: Patent
• Language: English; Russian
• Published: 10.03.2005
• Edition: 7
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; PERFORMING OPERATIONS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

FIELD: manufacture of removable armored solid-propellant charges used in rocket systems and other areas of technique. ^ SUBSTANCE: the method is dealt with the fields of manufacture of the removable armored solid-propellant charges used in rocket systems and other areas of technique. The method of armoring of solid-propellant charges by the thermoplastic armoring compounds with the help of the injection-molding machines includes inserting, centering of a solid propellant grain in a press-mould containing a chamber, and injection under pressure of the melted armoring material into a clearance between the press-mould and the propellant grain. The charges are armored along the butt and the lateral surface. On the subjected to armoring butt of the solid-propellant grain they make an operational opening. The press-mould contains a sprue cover equipped with the centering protrusion contacting with the operational opening. At that the opening before insertion of a charge in a press-mould is filled in with an easily deformed porous material. The given method expands the technological capabilities of the armoring mould casting and improves the quality of produced charges with a large elongation (L/D)> 2.5...3. ^ EFFECT: the invention expands the technological capabilities of the armoring mould casting and improves the quality of produced charges with a large elongation. ^ 3 cl, 5 dwg, 3 ex