CN-117048145-B - Sound-absorbing heat-insulating decorative integrated composite through-hole sandwich aluminum plate and manufacturing method thereof

CN117048145BCN 117048145 BCN117048145 BCN 117048145BCN-117048145-B

Abstract

The invention discloses a sound-absorbing heat-preserving decoration integrated composite through hole sandwich aluminum plate and a manufacturing method thereof, comprising a three-dimensional micro through hole sound-absorbing aluminum plate, a composite fiber sound-absorbing non-woven fabric, a honeycomb aluminum interlayer and a heat-preserving cotton plate, the three-dimensional micro-through hole sound absorption aluminum plate body is bent twice to form an aluminum buckle plate type structure with a cavity inside, the composite fiber sound absorption non-woven fabric is located in the cavity and arranged on the three-dimensional micro-through hole sound absorption aluminum plate, and the cavity is internally filled with a honeycomb aluminum interlayer and a heat insulation cotton plate from inside to outside in sequence. This scheme is led to adopting special three-dimensional micro punching technology to decorating aluminum plate, makes aluminum plate itself have good sound function of inhaling, and compound novel high-efficient sound non-woven fabrics of inhaling is in order to alleviate the use of inhaling the sound fibre cotton, when guaranteeing the performance demand, simplifies interior trim layer structure, promotes efficiency of construction, reduces engineering cost, has improved compound through-hole aluminum plate's functionality and convenience greatly.

Inventors

ZHANG YUNPENG
LI JINFEI
ZHANG SHIWU
GUI QIANG
Pan Shaoxue
WEI SEN

Assignees

中国建筑第八工程局有限公司

Dates

Publication Date: 20260512
Application Date: 20230704

Claims (5)

1. A sound-absorbing, heat-insulating and decorating integrated composite through hole sandwich aluminum plate is characterized by comprising a three-dimensional micro through hole sound-absorbing aluminum plate, composite fiber sound-absorbing non-woven fabrics, a honeycomb aluminum interlayer, a heat-insulating cotton plate and an embossed aluminum foil plate, The three-dimensional micro-through hole sound absorption aluminum plate comprises a first surface, a second surface, a first conical punching hole, a second conical punching hole, a first triangular pyramid punching hole, a second triangular pyramid punching hole, a first conical punching hole and a second conical punching hole, wherein the first conical punching hole and the second conical punching hole are correspondingly distributed on the first surface and the second surface of the three-dimensional micro-through hole sound absorption aluminum plate, and the first conical punching hole and the second conical punching hole are three-dimensional inverted cones; Forming an elliptical through hole in the middle of the plate thickness, wherein the aperture of the elliptical through hole accounts for 25% of the total length between the first triangular pyramid punching hole and the second triangular pyramid punching hole; the triangular cone height of the first conical punched hole and the second conical punched hole is 70% of the total thickness of the three-dimensional micro-through hole sound absorption aluminum plate, and meanwhile the sum of triangular areas of the three-dimensional punched bottom surfaces of the triangular cones is 70% of the area of the three-dimensional micro-through hole sound absorption aluminum plate; The three-dimensional micro-through hole sound absorption aluminum plate comprises a three-dimensional micro-through hole sound absorption aluminum plate body, a front plate and a rear plate, wherein the front plate and the rear plate are formed by twice bending, a cavity formed in the middle of the front plate and the rear plate is used for installing a composite fiber sound absorption non-woven fabric, a honeycomb aluminum interlayer, a heat insulation cotton plate and an embossed aluminum foil plate, meanwhile, inflection points formed by twice folding are used for fixing the composite fiber sound absorption non-woven fabric, the honeycomb aluminum interlayer, the heat insulation cotton plate and the embossed aluminum foil plate placed in the cavity, the width of the cavity formed between the three-dimensional micro-through hole sound absorption aluminum plates is 85mm-95mm, the composite fiber sound absorption non-woven fabric is positioned in the cavity and is arranged on the inner side of a vertical panel of the three-dimensional micro-through hole sound absorption aluminum plate, the honeycomb aluminum interlayer, the heat insulation cotton plate and the embossed aluminum foil plate are sequentially filled in the cavity from inside to outside, the composite fiber sound absorption non-woven fabric is made of glass fiber and wood fiber composite fiber non-woven fabric, and the stretching rate is 3%.
2. The sound-absorbing heat-insulating decorative integrated composite through hole sandwich aluminum plate according to claim 1, wherein the sum of the areas of the through holes accounts for 20% -30% of the area of the three-dimensional micro-through hole sound-absorbing aluminum plate.
3. The sound-absorbing, heat-insulating and decorating integrated composite through hole sandwich aluminum plate is characterized in that a color coating is sprayed on the three-dimensional micro through hole sound-absorbing aluminum plate.
4. The sound-absorbing heat-insulating decorative integrated composite through hole sandwich aluminum plate according to claim 1, wherein the heat-insulating cotton plate is internally filled in a cavity formed by three-dimensional micro-through hole sound-absorbing aluminum folds after being glued and embossed with an aluminum foil plate on one side, and one side of the heat-insulating cotton plate, which is free of aluminum foil, faces a honeycomb aluminum interlayer.
5. A method for manufacturing the sound-absorbing heat-preserving decorative integrated composite through-hole sandwich aluminum plate, which is characterized by comprising the following steps of: (1) The method comprises the steps of carrying out double-sided punching on an aluminum alloy plate by adopting a die hydraulic punching mode to prepare a three-dimensional micro-through hole sound absorption aluminum plate, wherein a plurality of concave first conical punched holes and second conical punched holes are correspondingly distributed on a first surface and a second surface of the three-dimensional micro-through hole sound absorption aluminum plate, the first conical punched holes and the second conical punched holes are three-dimensional inverted cones, the first conical punched holes and the second conical punched holes on the first surface and the second surface are respectively and correspondingly arranged, the first conical punched holes and the second conical punched holes penetrate through each other, an oval through hole is formed in the middle position of the plate thickness, and the aperture of the oval through hole accounts for 25% of the total length between the first triangular pyramid punched holes and the second triangular pyramid punched holes; (2) Cutting a three-dimensional micro-through hole sound absorption aluminum plate according to the size of the sandwich plate, cutting rectangular at four corners, bending, and cutting the plate corners of the plate back edge wrapping area at an oblique angle of 45 degrees to enable the plate back edges to be closely spliced; (3) Bending the cut three-dimensional micro-through hole sound absorbing aluminum plate by using aluminum alloy cold processing equipment, bending each side twice to form a front plate and a rear plate, wherein a cavity formed between the front plate and the rear plate is used for installing a composite fiber sound absorbing non-woven fabric, a honeycomb aluminum interlayer, a heat preservation cotton plate and an embossed aluminum foil plate, and meanwhile, an inflection point formed by folding twice is used for fixing the composite fiber sound absorbing non-woven fabric, the honeycomb aluminum interlayer, the heat preservation cotton plate and the embossed aluminum foil plate which are placed in the cavity; (4) Carrying out surface treatment on the three-dimensional micro-through hole sound absorption aluminum plate through an electrostatic spraying or oxidation coloring process according to the decoration design requirements, and carrying out material compounding after the coating is dried and fixed; (5) Sticking the sound-absorbing non-woven fabric with the back adhesive composite fiber on the inner side of a vertical panel of the three-dimensional micro-through hole sound-absorbing aluminum plate, heating by an electric iron, and improving the bonding capacity of the hot-melt resin adhesive; (6) Cutting the honeycomb aluminum interlayer into a size slightly smaller than the design size of the sandwich plate after fully expanding, filling the sandwich plate into a cavity of the three-dimensional micro-through hole sound absorption aluminum plate square box, placing the sandwich plate on the back surface of the composite fiber sound absorption non-woven fabric, and adhering an edge strip formed by cutting honeycomb aluminum and the inner side wall of the cavity of the three-dimensional micro-through hole sound absorption aluminum plate square box by using structural adhesive; (7) And (3) adhering the heat-insulating plate on one side by using a structural adhesive to form an aluminum foil plate, embossing the aluminum foil plate, and then filling the aluminum foil plate into a cavity of a square box of the three-dimensional micro-through hole sound-absorbing aluminum plate, wherein one side of the aluminum foil without embossing faces the three-dimensional micro-through hole sound-absorbing aluminum plate, and forming a sound-absorbing heat-insulating integrated composite through hole sandwich aluminum plate with the honeycomb aluminum interlayer, the composite fiber sound-absorbing non-woven fabric and the three-dimensional micro-through hole sound-absorbing aluminum plate.

Description

Sound-absorbing heat-insulating decorative integrated composite through-hole sandwich aluminum plate and manufacturing method thereof Technical Field The invention relates to the technical field of process manufacturing, in particular to a sound absorption, heat preservation and decoration integrated composite through hole sandwich aluminum plate and a manufacturing method thereof. Background The sound absorption and heat insulation performance of indoor decoration are required in places such as machine rooms, meeting rooms, exhibition halls and cinema, the conventional built-in method is that the heat insulation layer, the sound absorption layer and the decoration layer are constructed independently in a layered mode, and the problems that the working procedure is complex, the thickness of the decoration layer is large, the indoor space is occupied, the self weight is large, the bearing requirement on the structural keels is high and the like are solved. From the material perspective, mineral fiber materials such as rock wool, glass fiber cotton and the like are the most widely used sound-absorbing and heat-insulating materials, and the fiber materials have good sound-absorbing effect, but have the problems of unfriendly construction, easy moisture absorption, easy weathering and the like, the sound-absorbing and heat-insulating properties of the fiber materials are degraded after moisture absorption and moisture absorption, and the weathered fiber particles are dissipated into the air, so that the environment-friendly and healthy effects are not realized. In addition, the XPS extruded sheet, polyurethane sheet and other organic heat-insulating sheets have good heat-insulating performance, but have the defects of poor fireproof performance, toxic gas release at high temperature and the like when being used as indoor heat-insulating materials. Therefore, the research and development of the high-efficiency, safe, attractive and convenient integrated sound-absorbing, heat-insulating and decorating interior decoration plate has important engineering significance and wide application scenes. The perforated aluminum plate has the advantages of light weight, attractive appearance, durability, recyclability and the like, and is widely applied to indoor wall bodies and ceiling decoration panels. However, the conventional perforated aluminum plate is perforated directly and has sound transmission effect, but has little sound absorption effect, and the perforated aluminum plate is used by matching with sound absorption cotton, so that the conventional perforated aluminum plate has poor sound absorption effect and complex application structure, and the reliability of the perforated aluminum plate is greatly reduced. It can be seen how to improve the reliability of perforated aluminum sheets is a problem to be solved in the art. Disclosure of Invention Aiming at the technical problem that the existing perforated aluminum plate is low in reliability, the invention aims to provide the sound-absorbing heat-insulating decorative integrated composite through-hole sandwich aluminum plate which has sound-absorbing, heat-insulating and decorative functions, and meanwhile, the method for manufacturing the sound-absorbing heat-insulating decorative integrated composite through-hole sandwich aluminum plate can simplify the structure of an inner decorative layer, improve the construction efficiency and reduce the engineering cost while guaranteeing the performance requirements. In order to achieve the aim, the sound-absorbing heat-preserving decorative integrated composite through-hole sandwich aluminum plate comprises a three-dimensional micro-through-hole sound-absorbing aluminum plate, composite fiber sound-absorbing non-woven fabrics, a honeycomb aluminum interlayer and a heat-preserving cotton plate, wherein the three-dimensional micro-through-hole sound-absorbing aluminum plate body is bent twice to form an aluminum buckle plate type structure with a cavity inside, the composite fiber sound-absorbing non-woven fabrics are positioned in the cavity and are arranged on the three-dimensional micro-through-hole sound-absorbing aluminum plate, and the cavity is sequentially filled with the honeycomb aluminum interlayer and the heat-preserving cotton plate from inside to outside. Further, a plurality of concave first conical punched holes and second conical punched holes are correspondingly distributed on the first surface and the second surface of the three-dimensional micro-through hole sound absorption aluminum plate, and the first conical punched holes and the second conical punched holes are communicated through holes. Further, the first cone-shaped punched hole and the second cone-shaped punched hole are three-dimensional inverted cones. Further, the taper heights of the first taper punched hole and the second taper punched hole are 70% +/-2% of the total thickness of the three-dimensional micro-through hole sound absorption