Active Member
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[China]
Address: 1200 N Fuxing Rd Wutong District 314500 Zhejiang P. R. China
Contact name:Warren Sun
Pasia Honeycomb Products Co., Ltd |
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Wind Tunnel Stainless Steel Honeycomb Flow Straightener
Wind Tunnel Stainless Steel Honeycomb Flow Straightener is welded of multiple corrugated stainless-steel sheets as per to accurate pre-determined cell size while the corrugating is processed on a gear press with the sheets delivery from a roller of rolled stainless-steel. A flow straightener is a straightening device designed to make a flowing stream of fluid relatively free of turbulence, thereby permitting flowrate measurements by turbine meter or delta flowmeter, which is susceptible to eddies, circular flows, ununiform distribution of flow velocity etc. Created by existing pipeline arrangements (elbows, reducers, valves, etc.) or by the type of pumps used, always under consistent conditions.
Straighteners used to reduce swirling created from fan (lateral turbulence) creates small axial turbulence which is mitigated from post-honeycomb screens optimal diameter to length ratio is 6 – 8.
Specifications
| Cell Size (mm) | 25.0 | 16.0 | 12.7 | 10.0 | 6.4 | 5.6 | 4.8 | 3.2 | 1.6 | 0.8 |
| Height Range (mm) | 50-450 | 50-450 | 50-150 | 50-150 | 5-100 | 5-90 | 5-60 | 5-60 | 3-30 | 3-25 |
| Foil Thickness (mm) | 0.20 | 0.20 | 0.20 | 0.20 | 0.20 | 0.20 | 0.20 | 0.20 | 0.076 | 0.05 |
| Cubic Density (kg/m3) | 165 | 256 | 320 | 403 | 616 | 699 | 806 | 1164 | 909 | 1164 |
| Materials | SS304, SS316 or SS316L | |||||||||
| Welding | Spot Welding with one area five spots or laser welding | |||||||||
| Shapes | Customized shape available not limited to ring, plate, loop etc | |||||||||
Properties
Welded honeycomb core, no matter what material is, such as aluminum, stainless steel, steel, titanium etc, possesses better mechanical properties against regularly produced glued honeycomb core. So it performs significantly better again the common honeycomb bonded by adhesive on strength, modulus, corrosion resistance, dimensional stability etc. However, generally, these critical performance variables should be evaluated: material, airflow and attenuation.
1. Material Composition
Stainless steel grade should be considered according to the real application. Custom materials other than stainless steel are available upon request. Here are the parameters need to be evaluated:
Durability
Material type and grade is the first aspect to be evaluated then plating, discussed in depth later, can improve durability.
Weight
Material, structure and thickness of the material can affect the total part weight.
2. Corrosion resistance
Typically brass and stainless steel should be used in slashing environments. Plating or nonconductive surface coatings can improve corrosion resistance for all honeycomb types.
3. Airflow & Attenuation
Airflow and attenuation are inversely proportional. Infinitely large honeycomb cells result in infinitely small attenuation (and vice versa). Typically, as a design baseline, airflow performance requirements are calculated to meet thermal performance needs for the assembly that the vent is to be installed onto. Once airflow is determined, attenuation and other requirements can be evaluated. Standard cell sizes for honeycomb are 1/16", 1/8" and 1/4", with 1/8" being most common. Standard thicknesses are 1/4," 1/2" and 1," with 1/4" being most common.
