Abstract: A filler metal including not more than about 0.1% C, not more than about 1.0% Si; not more than about 0.8% Mn; from about 10.5% to about 13.0% Cr; from about 0.65% to about 4.0% Ni; from about 10(% C) to about 1.5% Ti; not more than about 0.5% each of N, S, P, Mo, Nb, Cu, V, or Co; and balance essentially Fe, wherein a weld test pad of the filler metal contains a microstructure comprising martensite. A method of attaching together two components using a modified filler metal which forms a weld containing an amount of martensite sufficient to increase the volume of the weld thereby at least partially offsetting shrinkage of the weld upon cooling, and articles produced thereby.
Abstract: A straight rod form discharge electrode used in a wire bonding apparatus. The electrode core material is covered, except for its tip end, by an alumina film that has been subjected to a pore sealing treatment. The alumina film subjected to the pore sealing treatment is formed by a two-stage process. In the first-stage, an alumina film having a porous structure is formed on the surface of the electrode core material for the thickness of approximately 6 &mgr;m by plasma flame coating method or anodic oxidation method; and in the second-stage, the porous structure is subjected to a pore sealing treatment in which an alumina film is caused to adhere to the porous structure by laser PVD or a pore sealing treatment is performed with a resin.
Abstract: A flux cored wire for welding a ferrite stainless steel is disclosed.
The flux cored wire includes in weight %, 0.04% or less of C, 0.1˜1.0% of Si, 0.1˜1.0% of Mn, 0.02% or less of P, 0.02% or less of S, 10˜25% of Cr, 0.3˜1.5% of Ti+Nb, 0.04% or less of N, 0.04% or less of O, and a balance of Fe and other unavoidable impurities, wherein a value defined by [(O+N)×Cr] is 0.8 or less. In the flux cored wire for welding the ferrite stainless steel, a superior corrosion resistance and a superior cracking resistance are realized.
Abstract: A cathode material of an electron beam device comprising 0.5 to 9.0% by weight of a rare-earth metal of the cerium group, 0.5 to 15.0% by weight of tungsten and/or rhenium, 0.5 to 10% by weight of hafnium and the balance of iridium is provided. Since the cathode material has excellent plasticity, it is easy to manufacture small-size emitters. Also, since the density of the electron emission of the cathode material is high and the working temperature is low, a long lifetime can be ensured. Also, the cathode material is useful as a cathode material of an electron beam device.
Type:
Grant
Filed:
June 26, 2001
Date of Patent:
January 28, 2003
Assignee:
Samsung SDI Co., Ltd.
Inventors:
Jong-Seo Choi, Yoon-Chang Kim, Kyu-Nam Joo, Nikolay Osaulenko, Vladislav Shutovsky, Oleg Kultashev
Abstract: An anti-adhesion coating for welding and/or soldering devices and electric contacts for reducing the adhesion of metallic contaminations on their surfaces includes a diamond-like carbon layer.
Type:
Grant
Filed:
January 4, 2001
Date of Patent:
November 12, 2002
Assignee:
Fraunhofer-Gesellschaft zur Foerderung der Angewandten
Forschung e.V