scholarly journals Detection of High Density of Cube Oriented Grains in a pure Aluminum Sheet for Capacitor

2000 ◽  
Vol 64 (3) ◽  
pp. 218-219 ◽  
Author(s):  
Fumie Seki
Keyword(s):  
Pure Aluminum ◽  
High Density ◽  
Aluminum Sheet

Condensation performance of superhydrophobic aluminium surface material used for cooled ceiling panels under highly humid indoor conditions

2021 ◽  
Vol 2069 (1) ◽  
pp. 012121
Author(s):  
Z W Zhong ◽  
J L Niu ◽  
W Ma ◽  
S H Yao ◽  
M Yang ◽  
...  
Keyword(s):  
Superhydrophobic Surface ◽  
Pure Aluminum ◽  
Dew Point ◽  
Aluminum Sheet ◽  
Measured Temperature ◽  
Pure Aluminium ◽  
Radiant Cooling ◽  
Long Time ◽  
Cooled Ceiling ◽  
Indoor Conditions

Abstract The application of radiant cooling systems is very limited in hot and humid areas due to condensation. Research on superhydrophobic surface (SHS) materials has shown the potential of restricting the size of condensate drops on these materials, which provides possibilities for preventing dripping and thereby alleviating condensation risks for cooled ceiling panels, but there are few studies on the anti-condensation performance of these materials under the scale and conditions of building applications. An experimental study of condensation on superhydrophobic materials under indoor conditions is presented in this article. Two material samples with a size of 2.5 cm, including a superhydrophobic aluminum sheet and a pure aluminium sheet, were affixed on a cooled ceiling panel to perform the experiment under the following condition: temperature is 25°C ± 0.5°C, relative humidity is 80% ± 5%, and air dew point is 21.4°C. The panel was cooled by chilled water of 6°C for eight hours. The measured temperature on sample surfaces was about 13.5°C during the experiment. After eight-hour condensation, the diameter of drops on the superhydrophobic aluminum sheet was less than 150 μm, while the max drop on the pure aluminum sheet was near 4 mm. The results suggested that the size of condensate drops on superhydrophobic surface materials can be largely restricted during a long-time indoor operation below the dew point, which shows their potential for constructing condensation-free radiant cooling panels.

Effects of Punch Cross-Section on Deep-Drawability of Square Shell of Aluminum Sheet

1987 ◽  
Vol 109 (4) ◽  
pp. 355-361 ◽  
Author(s):  
N. Kawai ◽  
T. Mori ◽  
H. Hayashi ◽  
F. Kondoh
Keyword(s):  
Crack Initiation ◽  
Cross Section ◽  
Pure Aluminum ◽  
Metal Flow ◽  
Aluminum Sheet ◽  
Forming Limit ◽  
Planar Anisotropy ◽  
Deep Drawability ◽  
Commercially Pure ◽  
Relief Effect

Effects of product shape and a planar-anisotropy on a square shell drawability were studied, using commercially pure aluminum sheet. Two phenomena were mainly considered to affect a forming limit: (a) the prevention of crack initiation at the corner of a punch by adjacent straight punch profile regions, (b) the metal flow in the flange region from the corner to the straight side, the “Strain Relief Effect,” which serves to decrease the deformation at the corner.

scholarly journals Crystallographic Orientation Distribution Control by Means of Continuous Cyclic Bending in a Pure Aluminum Sheet

2007 ◽  
Vol 48 (8) ◽  
pp. 1992-1997 ◽  
Author(s):  
Yoshimasa Takayama ◽  
Yuji Uchiyama ◽  
Tsuyoshi Arakawa ◽  
Masakazu Kobayashi ◽  
Hajime Kato
Keyword(s):  
Crystallographic Orientation ◽  
Pure Aluminum ◽  
Orientation Distribution ◽  
Aluminum Sheet ◽  
Cyclic Bending

Shear Tests of Pure Aluminum/High Density Polyethylene Joint by Tensile Loading

2017 ◽  
Vol 2017.55 (0) ◽  
pp. K0301
Author(s):  
Shuntaro ABE ◽  
Naoya TADA ◽  
Hirotsugu TABATA ◽  
Takeshi UEMORI ◽  
Toshiya NAKATA
Keyword(s):  
High Density Polyethylene ◽  
Pure Aluminum ◽  
Tensile Loading ◽  
High Density ◽  
Shear Tests

Passivity of 4N pure aluminum sheet for electrolytic capacitor electrodes

1999 ◽  
Vol 140 (1-2) ◽  
pp. 111-117 ◽  
Author(s):  
Fumihiro Sato ◽  
Tsuyoshi Sakurai ◽  
Kozo Hoshino
Keyword(s):  
Pure Aluminum ◽  
Aluminum Sheet ◽  
Electrolytic Capacitor

Pulsewise-Motion Controlled Stamping for Microtexturing Onto Aluminum Sheet

2015 ◽  
Vol 4 (1) ◽  
Author(s):  
Tatsuhiko Aizawa ◽  
Tatsuya Fukuda
Keyword(s):  
Pure Aluminum ◽  
Metal Flow ◽  
Numerical Control ◽  
Aluminum Sheet ◽  
Normal Loading ◽  
Precise Control ◽  
Dlc Coating ◽  
Diamondlike Carbon ◽  
Oxygen Plasma Etching ◽  
Loading And Unloading

High density oxygen plasma-etching was applied to microtexturing onto the diamondlike carbon (DLC) films coated on the die-unit substrates. This mold-die unit with microtextured DLC coating was fixed into a cassette die for computer numerical control (CNC) stamping with the use of precise control both in loading and feeding the sheet materials. In particular, the pulsewise-motion control in stamping was employed to describe the effect of loading and unloading subsequences in the incremental motion on the microtexturing with reference to the normal loading motion. The macroscopic plastic deformation as well as the microscopic metal flow were studied to prove that the pulsewise-motion should be responsible for homogeneous duplication of microcavity patterns into a pure aluminum sheet with high aspect ratio.

Sign in / Sign up

Export Citation Format

Share Document