FIELD: technological processes.
SUBSTANCE: invention relates to equipment for making articles from composite materials by winding and can be used in making shaping mandrels for winding of power shell of containers operating under pressure, for example, bodies of solid-propellant rocket engines. Proposed mandrel comprises cylindrical and spherical sections made from hardened sand-polymer mixture. Each section includes uniformly distributed in volume of sand-polymer mixture secondary discrete fibrous carbon filler, obtained as a result of release of carbon fibers by solvolysis from volume of spent polymer composite material. Fibrous filler occupies 8–12 % of the volume of the section.
EFFECT: invention allows increasing strength level at compression of the mandrel, which is determined by advanced samples-demonstrators of the technology, as well as accelerating time of evaporation of the mandrel and improving quality of manufacturing of cases from polymer composite materials.
1 cl, 1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| MANDREL FOR MAKING LARGE-SIZED CASES FROM POLYMER COMPOSITES | 2012 |
|
RU2507069C1 |
| MANDREL FOR MANUFACTURE OF LARGE-SIZED BODIES FROM POLYMERIC COMPOSITE MATERIALS | 2004 |
|
RU2266201C1 |
| METHOD OF PRODUCING OF HOUSING OF ROCKET SOLID PROPELLANT ENGINE | 2015 |
|
RU2614422C2 |
| PREPREG | 0 |
|
SU653273A1 |
| METHOD OF PRODUCING SURFACE-ACTIVE FIBROUS CARBON MATERIAL | 2015 |
|
RU2587095C1 |
| NANOSTRUCTURED FUNCTIONAL-GRADIENT COMPOSITE MATERIAL AND METHOD OF PRODUCING SAID MATERIAL | 2009 |
|
RU2428395C2 |
| METHOD OF PRODUCING PARTS FROM COMPOSITE MATERIALS | 2009 |
|
RU2412051C1 |
| HOT MELT EPOXY BINDER, SEMIPREG BASED ON IT AND A PRODUCT MADE FROM IT | 2022 |
|
RU2803987C1 |
| COMPOSITION OF THERMO-INSULATING COATING POLYMER COMPOSITION FOR PRODUCTION OF POWER PLANT CASES | 2019 |
|
RU2732327C1 |
| METHOD OF RECYCLING FILLER FROM WASTES OF POLYMER COMPOSITE MATERIALS (PCM) | 2020 |
|
RU2734676C1 |
