| 摘要 |
FIELD: noise insulation.SUBSTANCE: invention relates to means of controlling noise and can be used as sound insulation of vacuum panels in construction of buildings and structures, as well as in machine building. Vacuum soundproof structure comprises a limiting member to form an internal space for its evacuation. Limiting member is a shell of a sealed metal foil or a metal foil laminated with a polymer film, which is placed inside forming, filling of sound-insulating material with open pores or cells. Sealed shell on outside is covered with sound-absorbing material, a sealant or a rubber or rubber-like material.EFFECT: invention increases the degree of sound insulation of vacuum structure.1 cl, 2 dwg |
