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Advanced Technology Materials Incorporated and Entegris | Date: 2012-12-06

The present invention provides a fluid filter utilizing a polymeric membrane supports by metallic screens contained in a housing. The supports have apertures through which fluid can pass. The metallic supports are created such that they have at least one surface substantially free from burrs, so as not to damage the membrane. This smooth surface is in communication with the polymeric membrane. One or more indexing protrusions can be added along the circumference to restrict the relative movement between the supports, and to align the apertures of the two supports.

Advanced Technology & Materials Co. | Date: 2012-09-27

The invention belongs to the technical field of rapid solidification of amorphous alloy and concretely relates to an iron-based amorphous alloy broad ribbon, wherein the width is 220-1000 mm, the thickness is 0.02-0.03 mm, the transversal thickness deviation is smaller than +/0.002 mm, the lamination factor is larger than 0.84, the saturation magnetic-flux density is larger than 1.5 T, the iron loss is smaller than 0.20 W/kg under the conditions that the frequency is 50 Hz and the maximum magnetic-flux density is 1.3 T, and the exciting power is smaller than 0.50 VA/kg. The invention also relates to a manufacturing method of the broad ribbon, and a single-roll quenching method is adopted, wherein the width of a nozzle slot is 0.4-0.7 mm, the transversal width deviation of the nozzle slot is smaller than +/0.05 mm, the transversal flatness deviation of a cooling roll (

Liu G.,Advanced Technology & Materials Co. | Liu G.,Control Iron and Steel Research Institute, China | Zhao S.,CAS Hefei Institutes of Physical Science | Peng L.,Advanced Technology & Materials Co. | And 5 more authors.
Jinshu Rechuli/Heat Treatment of Metals | Year: 2015

Effect of precipitates on microstructure and mechanical properties of CuCrZr alloy under different heat treatments was analyzed by means of scanning electron microscope and mechanical properties test. The results show that the size and distribution of the precipitates in hot forged CuCrZr alloy exhibit a "hereditary" characteristic after solid solution, water cooling and aging treatment, and a higher cooling rate is beneficial for impeding the aggregation and coarsening of the precipitates. Additionally, the cold deformation before aging treatment is favorable for obtaining fine and well-distributed precipitates, thus leading to excellent and stable mechanical properties. ©, 2015, Chinese Mechanical Engineering Society of Heat Treatment. All right reserved.

Shen X.,Advanced Technology & Materials Co. | Shen X.,Beijing Special Powder Metallurgy Materials Engineering and Technology Research Center | Yao J.,Beijing Gang Yan Diamond Products Company | Ma H.,Advanced Technology & Materials Co. | And 3 more authors.
Jingangshi yu Moliao Moju Gongcheng/Diamond and Abrasives Engineering | Year: 2015

The hot pressing sintering organization, XRD phase composition and the mechanical properties of alloy powder containing 10wt%, 15wt%, 20wt% Sn respectively were researched systematically. It was identified that due to the low sintering temperature of Cu-Sn powder, the densification could be achieved at 700-720 ℃, and that the single solid solution sintering organization containing 10wt% of Sn was converted to two phases electronic compounds organization, which coincided with XRD spectrum inclination. The bending strength, which stayed around 700 MPa, changed little with increasing Sn content, while impact toughness dropped from 17 J to 3 J. Taking the matrix characteristics into consideration it was concluded that the Cu-Sn powder, when used as matrix, was conducive to improve the machining efficiency of tools. ©, 2015, Zhengzhou Institute of Abrasives Grinding. All right reserved.

Chen F.,Lanzhou University of Technology | Liu G.,Advanced Technology & Materials Co. | Lin Q.,Lanzhou University of Technology | Cao R.,Lanzhou University of Technology | And 2 more authors.
Dongli Gongcheng Xuebao/Journal of Chinese Society of Power Engineering | Year: 2016

Ni-based alloy 690 was deposited on the surface of stainless steel 347 by using TIG surfacing procedure, while electrochemical corrosion properties of the substrate stainless steel 347, surfacing layer alloy 690 and the welded joint were analyzed by electrochemical measurement technology in a 3.5% NaCl solution at room temperature. To study the corrosion mechanism of the welded joint, the microstructure and composition were analyzed by SEM and EDS, and the surface morphology after corrosion was characterized by optical microscope. Results show that the corrosion rate of the base metal and the welded joint is respectively 8.4 times and 11.8 times of the surfacing layer, indicating that the surfacing layer Ni-based alloy 690 has the strongest corrosion resistance, followed by the base metal stainless steel 347, and the welded joint has the poorest corrosion resistance. The dilution of Cr by surfacing layer in the base metal near fusion zone of welded joint is the main reason leading to the aggravated corrosion of the substrate stainless steel 347. © 2016, Editorial Department of Chinese Society of Power Engineering. All right reserved.

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