摘要:
Provided are a metal foam stack and a manufacturing method thereof. The metal foam stack includes one or more stack units. The stack unit includes: a first metal foam sheet including an open cell, in which a plurality of internal cells is connected with one another; a first bonding member positioned on the first metal foam sheet; and a second metal foam sheet positioned on the first bonding member, and including an open cell, in which a plurality of internal cells is connected with one another. Materials of an interface between the first metal foam sheet and the first bonding member and an interface between the second metal foam sheet and the first bonding member are atomically diffused.
摘要:
To provide a press-fit, sintered valve seat having high valve coolability and wear resistance for use in a high-efficiency engine, and its production method, Cu powder having an average particle size of 45 µm or less and purity of 99.5% or more is used to form a network-connected Cu matrix, even though a relatively large amount of hard Co-based alloy particles are added; and Fe-P alloy powder is used for densification by liquid-phase sintering.
摘要:
A water-atomized iron-based powder is provided that is pre-alloyed with 0.75-1.1% by weight of Ni, 0.75-1.1% by weight of Mo and up to 0.45% by weight of Mn, and further including 0.5-3.0%, preferably 0.5-2.5% and most preferably 0.5-2.0% by weight of Cu, and inevitable impurities, the balance being Fe.
摘要:
The object is to provide a composite magnetic powder for noise suppression to give a noise suppressor having ability to suppress the noise in a wide range from a low frequency through a high frequency while suppressing heat generation by reducing a dielectric constant loss on the high frequency side, and in order to attain the object, there is employed a composite magnetic powder for noise suppression in which the surface of a metallic powder is coated with a fine particle having a high dielectric constant and a binder resin or the like. By using this composite magnetic powder for noise suppression, there can be provided a noise suppressor excellent in ability to suppress the noise in a wide frequency region.
摘要:
The application relates to the technology of producing three-dimensional articles by means of powder-based additive manufacturing, such as selective laser melting (SLM) or electron beam melting (EBM). Especially, it refers to a Nickel-base superalloy powder on basis of Hastelloy X consisting of the following chemical composition (in wt. -%): 20.5-23.0 Cr, 17.0-20.0 Fe, 8.0-10.0 Mo, 0.50-2.50 Co, 0.20-1.00 W, 0.04-0.10 C, 0-0.5 Si, 0-0.5 Mn, 0-0.008 B, remainder Ni and unavoidable residual elements and wherein the powder has a powder size distribution between 10 and 100 µm and a spherical morphology and the ratio of the content (in wt.-%) of alloying elements C/B is at least 5 or more.
摘要:
The object of the invention is a method for conducting a chemical reaction involving the powder catalyst, in particular ferromagnetic catalyst. The method is characterized in that while conducting a chemical reaction, particles of the catalyst comprising a ferromagnetic material are put into oscillation by the oscillating magnetic field with a frequency greater than 0.1 Hz and a magnetic field induction greater than 0.01 mT. Oscillating magnetic field here is a field the induction vector of which changes its direction in time. Putting catalyst particles into oscillation increases the efficiency of the chemical reaction by several dozen to several hundred percent.
摘要:
A system and method of forming a silicon-hybrid anode material. The silicon-hybrid anode material including a microparticle mixture of a quantity of silicon microparticles and a quantity of metal microparticles intermixed with the quantity of silicon microparticles in a selected ratio. The microparticle mixture is formed in a silicon-hybrid anode material layer having a thickness of between about 2 and about 15 μm.