Small cell porous aluminum foam
Henan Chalco Aluminum is a high-tech enterprise specializing in R & D and production of new type of porous aluminum foam. In China, the first development of high absorptive pore porous foam aluminum is put into use, and the production of porous aluminum foam NRC can reach over 0.95. The shape of the plate produced is beautiful. At the same time, the strength of the sheet can meet various engineering needs, such as the tensile strength of B-type 4MM sheet can reach 8 MPa, the thinnest thickness can be more than 2 MM, the thickest can be 100 MM, the company also produces aluminum fiber sound absorber, which NRC can be 0.7-0.8, the weight of each square meter is usually between 1.5-2 KG, the length is arbitrary, can be sheared, can be curled, the thickness is usually 1.35-3 MM. Between them, it has very good toughness.
Porous aluminum foam has excellent performance in sound absorption, filtration, noise reduction, heat transfer, mold manufacturing and so on. The detailed properties are as follows:
Henan Chalco Aluminum is a high-tech enterprise specializing in R & D and production of new type of porous aluminum foam. In China, the first development of high absorptive pore porous foam aluminum is put into use, and the production of porous aluminum foam NRC can reach over 0.95. The shape of the plate produced is beautiful. At the same time, the strength of the sheet can meet various engineering needs, such as the tensile strength of B-type 4MM sheet can reach 8 MPa, the thinnest thickness can be more than 2 MM, the thickest can be 100 MM, the company also produces aluminum fiber sound absorber, which NRC can be 0.7-0.8, the weight of each square meter is usually between 1.5-2 KG, the length is arbitrary, can be sheared, can be curled, the thickness is usually 1.35-3 MM. Between them, it has very good toughness.
Porous aluminum foam has excellent performance in sound absorption, filtration, noise reduction, heat transfer, mold manufacturing and so on. The detailed properties are as follows:
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Small cell porous aluminum foam |
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| Pore Characteristics and Volume Density |
Main aperture: 0.9mm, 1.6mm, 2.5mm three specifications, commonly used specifications are 1.6mm aperture. Porosity: 60-80% (68-78% at 1.6mm pore size) Porosity: 85-95% (90-95% at 1.6mm aperture) Volume density: 0.5-1.10g/cm3 (0.60-0.85g/cm3 with 1.6mm aperture) |
| Combustibility |
Determination according to GB/T5464 (Shanghai Fire Product Quality Supervision and Inspection Station) The combustion performance of sound absorber meets the requirement of GB8624 non-combustible material (Class A): it belongs to non-combustible material. |
| Moisture absorption property |
Measurement according to GB5480.7 (Inspection and Supervision Station of Insulating Material Quality of Shanghai Academy of Construction Sciences) Mass hygroscopicity W1 < 0.1% Volume hygroscopicity W2 < 0.1% |
| Mechanical property |
Reference to GB/T 1039-1040 (Shanghai Academy of Construction Sciences Building Materials and Components Quality Supervision and Inspection Station) Compressive Strength δc:8.61 Mpa (10% compression) Flexural strength δw:8.06 Mpa Tensile Strength δb:3.41 Mpa |
| Anti-aging properties |
Measurement according to GB/T14522 (Inspection Station of Shanghai Academy of Construction Sciences) No discoloration, no abscission and no aging after 250 hours testing |
| Electromagnetic shielding |
Measurement according to GB/12190 and SJ20524 (Jiangsu Network and EMC Test Station) Shielding effectiveness 40-55dB (80KHz-1.5GHz frequency range determination) |
| Sound absorption property |
Measurement by GBJ47 and GBJ88 (Institute of Acoustics, Tongji University) Average Absorption Coefficient (Frequency Range of 125-4000Hz) Noise Reduction Coefficient NRC 0.64 (Frequency Range Measurement of 250-2000Hz) |
| Sound insulation performance |
Measurement by GBJ75 (Acoustics Institute of Tongji University and Testing Station of Shanghai Academy of Construction Sciences) Aviometer weight sound insulation Rw 28.0dB (i.e. sound insulation index la) Average sound insulation Ra 24.5dB (Frequency range 125-4000Hz) |
