Abstract:
An amorphous hydrogen permeation alloy for membranes having excellent hydrogen permeability and stable structure and a manufacturing method thereof are provided. The amorphous hydrogen permeation alloy for membranes comprises: one or more first metals selected from a group containing nickel, cobalt, and iron; one or more second metals selected from a group containing niobium, tantalum, and vanadium; and one or more third metals including zirconium. The amount of the third metal can be 25at% or less. [Reference numerals] (S10) Provide a mixture by mutually mixing a first metal, a second metal, and a third metal;(S20) Provide an alloy by vacuum-dissolve the mixture;(S30) Provide a thin film by melting and spinning the alloy
Abstract:
PURPOSE: A hydrogen-permeable alloy member, a manufacturing method thereof and a hydrogen separating method using the same are provided to reduce the manufacturing cost by employing palladium film coating and to secure stable heat resistance under high temperature. CONSTITUTION: A manufacturing method of a hydrogen-permeable alloy member comprises the steps of preparing for a first, a second, a third, a fourth, and a fifth ingot(S10), melting the first, the second, the third, the, fourth and the fifth ingot into alloy(S20), melt-spinning the alloy to form a hydrogen-permeation alloy body(S30), and coating a palladium film on the hydrogen-permeation alloy body(S40). The first ingot is made of nickel, the second ingot is zirconium, the third ingot niobium or copper, fourth ingot cobalt or silicon, and the fifth ingot tantalum.
Abstract:
A container for forming semi solid metal slurry, an apparatus for forming the semi solid metal slurry, a method of forming the semi solid metal slurry and the semi solid metal slurry provided to minimize mixing of the impurity generated with oxide or the air collection and to increase cooling speed and degree of super-cooling of the molten metal. A mold for manufacturing the semi-solid metal slurry comprises a container is a cup shape in which the top is open and have an inner side has + gradient about a bottom; a plate part(21) cover the opened top of the container and formed inlet ports(1) separately each other along the edge of the container; a cover(20) formed integrally a fence part(22) connected to the circumference of the plate part. The cover and the container are combined while and the top end portion edge of the container and the part in which the inlet port of the plate part is formed merging into each other. The top end portion edge of the container is partially exposed by the inlet port, and the area of the top end portion of the container, exposed by the inlet port, is 5~50% of the inlet port area.
Abstract:
An apparatus for separating hydrogen is provided to purify a large amount of hydrogen at a low energy cost from a mixed gas containing argon, hydrocarbons, methane, oxygen, nitrogen, carbon monoxide, hydrogen, and carbon dioxide. An apparatus(100) for separating hydrogen comprises: a temperature control unit(10) for controlling temperature of mixed gas containing hydrogen to a range of 200 to 800 °C; a hydrogen separation unit(20) including a plurality of hydrogen permeation membranes which are stacked in multistage within a housing for flowing in and out the mixed gas, and which are spaced apart from one another, and a hydrogen adsorption part and a hydrogen desorption part alternately formed between the hydrogen permeation membranes; and pressure control units(40) for controlling the pressure such that a pressure of the hydrogen adsorption part is higher than that of the hydrogen desorption part. The hydrogen permeation membrane is a metal membrane, a ceramic film, or a polymer film. The temperature control unit comprises a heater for heating the mixed gas. The hydrogen separation unit includes a hydrogen collector(50) for collecting desorbed hydrogen. The hydrogen separation unit includes an insulating member(30) for insulating the housing from the external air. Further, the insulating member comprises an insulating bed mounted on the housing and an insulating cover for insulating from external air.
Abstract:
본 발명은 바이폴라 플레이트용 비정질 합금 및 그 제조 방법에 관한 것이다. 본 발명에 따른 바이폴라 플레이트용 비정질 합금은 일반식 Fe 100-abcdefg Cr a Mo b C c B d Y e M f I g 의 조성을 가진다. 여기서, M은 Al, Co, N 및 Ni 중에서 선택된 하나 이상의 원소이고, I는 불순물로서 Mn, P, S 및 O 중에서 선택된 하나 이상의 원소이며, a, b, c, d, e, f, g는 각각 16.0wt%≤a≤22.0wt%, 15.0wt%≤b≤27.0wt%, 2.0wt%≤c≤3.5wt%, 1.0wt%≤d≤1.5wt%, 1.0wt%≤e≤3.5wt%, 0.25wt%≤f≤3.0wt%, 0.01wt%≤g≤0.5wt% 이다. 비정질 합금, 연료전지, 바이폴라 플레이트
Abstract:
분리막용 바나듐계 수소투과합금, 그 제조 방법 및 이를 이용한 분리막의 사용 방법을 제공한다. 분리막용 바나듐계 수소투과합금은, 0 보다 크고 5at% 이하의 니켈(Ni), 5at% 내지 15at%의 철(Fe), 0 보다 크고 1at% 이하의 이트륨(Y) 및 나머지 바나듐 및 불순물을 포함한다.
Abstract:
An in-situ Ti-based bulk amorphous matrix composite has a composition (at%) represented by the below chemical formula 1. [The chemical formula 1] Ti_aZr_bBe_cCu_dNi_eM_fI_g In the chemical formula 1, M is one or more of Nb or Ta, and I is an impurity, and 38
Abstract translation:原位Ti基块状无定形基质复合体具有由下述化学式1表示的组成(at%)。[化学式1] Ti_aZr_bBe_cCu_dNi_eM_fI_g在化学式1中,M为Nb或Ta中的一种或多种, I是杂质,38 <= a <= 50,11 <= b <= 18,12 <= c <= 20,6 <= d <= 10,6 <= e <= 9,1 <= f <= 20,而0.01 <= g <= 0.5。 此外,a + b + c + d + e + f + g = 100。
Abstract:
PURPOSE: A copper-containing austenite stainless steel plate and a method for manufacturing the same are provided to obtain superior gain corrosion resistance through short-time annealing at low temperatures. CONSTITUTION: A method for manufacturing a copper-containing austenite stainless steel plate comprises the steps of: preparing a stainless steel plate containing copper of 1wt%-5wt%(S10), cold rolling the stainless steel plate(S20), annealing the stainless steel plate(S30), and repeating the cold rolling and annealing steps while gradually raising the annealing temperature(S40). In the initial cold rolling, the reduction ratio of the stainless steel plate is 3%-15%. The reduction ratio of the stainless steel plate after final rolling is 70%-90%.
Abstract:
A hydrogen permeation alloy member including A component, B component and nickel. The A component is niobium, vanadium, tantalum, cobalt, and copper or the zirconium, and the B component is palladium. Therefore the hydrogen permeation alloy member, capable of refining high purity hydrogen and being manufactured by using a small amount of palladium. A method for manufacturing amorphous hydrogen permeation alloy member performs the following steps, a step for preparing a first ingot consisting of the nickel, a second ingot consisting of the niobium, vanadium, tantalum, cobalt, and copper or the zirconium A component and a third ingot consisting of B component which is the palladium each component's weight ratio is 100-X-Y: X : Y(X is 3
Abstract translation:包含A组分,B组分和镍的氢渗透合金构件。 A成分为铌,钒,钽,钴,铜或锆,B成分为钯。 因此,氢气渗透合金构件能够精炼出高纯度的氢气,并且通过使用少量的钯来制造。 制造无定形氢渗透合金构件的方法进行以下步骤:制备由镍组成的第一铸块,由铌,钒,钽,钴和铜组成的第二铸块或锆A组分和第三铸锭 由B成分组成的锭为各自成分的重量比为100-XY:X:Y(X为3 <= X <70,Y为3 <= Y <30)。 熔化第一锭或第三锭的步骤; 以及熔融纺丝第一锭或第三锭的熔融合金的步骤。
Abstract:
연성 및 기계적 강도가 우수한 구리 함유 오스테나이트계 스테인리스 강판 및 그 제조 방법을 제공한다. 구리 함유 오스테나이트계 스테인리스 강판의 제조 방법은, i) 1wt% 내지 5wt%의 구리를 포함하는 스테인리스 강판을 제공하는 제1 단계, ii) 강판을 냉간 압연하는 제2 단계, iii) 강판을 어닐링하는 제3 단계, 및 iv) 제2 단계 및 제3 단계를 반복하는 제4 단계를 포함한다. 제4 단계에서 강판을 어닐링하는 경우 강판의 어닐링 온도를 순차적으로 상승시킨다.