轻质钢及其制备方法、钢结构件和电子设备

    公开(公告)号:WO2023025251A1

    公开(公告)日:2023-03-02

    申请号:PCT/CN2022/114865

    申请日:2022-08-25

    IPC分类号: C22C38/06 C22C38/04 B22F3/12

    摘要: 本申请提供一种轻质钢,包括:Fe,重量百分含量≥48.18wt%;Mn,重量百分含量为30.01wt%~35.01wt%;Al,重量百分含量为12.01wt%~15.01wt%;C,重量百分含量为1.0wt%~1.5wt%;O,重量百分含量为0.03wt%~0.3wt%。本申请还提供应用该种轻质钢的钢结构件和电子设备、该轻质钢的制备方法。本申请的轻质钢具有低密度、高强度和高延展性。

    СПОСОБ ИЗГОТОВЛЕНИЯ УРАН-ГАДОЛИНИЕВОГО ЯДЕРНОГО ТОПЛИВА

    公开(公告)号:WO2022075880A1

    公开(公告)日:2022-04-14

    申请号:PCT/RU2021/000174

    申请日:2021-04-26

    摘要: Изобретение относится к атомной промышленности, в частности, к технологии изготовления керамического ядерного топлива для тепловыделяющих элементов (ТВЭЛ) АЭС. Способ изготовления уран-гадолиниевого ядерного топлива включает подготовку исходного порошка диоксида урана, смешение с порошком закиси-окиси урана, с оксидом гадолиния, грануляция смеси порошков, смешение гранулята с твердой смазкой, прессование пресспорошка, спекание и шлифование полученных таблеток. К порошку на стадии грануляции, вводят часть добавки порообразователя, а оставшуюся часть порообразователя добавляют на стадии смешения гранулята с твердой смазкой. Способ обеспечивает стабильные технологические показатели уран-гадолиниевых таблеток, а именно оптимальную плотность и пористость топливных таблеток, которые непосредственно влияют на стабилизацию значений доспекаемости. Технический результат изобретения заключается в стабилизации «доспекаемости», что способствует безопасной эксплуатации топлива в реакторе.

    METHOD FOR CONTINUOUS MANUFACTURING OF PERMANENT MAGNETS

    公开(公告)号:WO2021226293A2

    公开(公告)日:2021-11-11

    申请号:PCT/US2021/030980

    申请日:2021-05-05

    IPC分类号: B22F3/12

    摘要: A method for continuous manufacture of permanent magnets. A material sheet is formed into an open tube, having a lengthwise opening. Magnetic powder may be poured into the lengthwise opening on a continuous basis. The tube opening is then formed closed and sealed. The magnetic powder is magnetically pre-aligned by subjecting it to a first magnetic field. The tube containing the powder may be compressed into a desired shape, forming an elongated permanent magnet. After compression, the elongated magnet is magnetized by a second magnetic field in two-step process, wherein the elongated permanent magnet is subjected to a magnetic field from first magnetizing coil that is pulsed with a first electric current in a first direction, followed by a second magnetizing coil being pulsed with a second magnetizing electric current in a second direction. The elongated magnet may be formed into any arbitrary shape, such as a ring or coil.

    一种铁铝基金属间化合物滤芯及其制备方法

    公开(公告)号:WO2021139081A1

    公开(公告)日:2021-07-15

    申请号:PCT/CN2020/094403

    申请日:2020-06-04

    IPC分类号: B23K28/02 B22F3/12

    摘要: 一种Fe-Al金属间化合物滤芯,包括:至少两节滤芯部件以及将至少两节滤芯部件横向焊接连接的加强筋(9),滤芯部件包括至少两段Fe-Al金属间化合物滤芯粉末管(2)和将至少两段Fe-Al金属间化合物粉末管首尾焊接连接的连接件;至少两段Fe-Al金属间化合物粉末管包括基体骨架(7)和在基体骨架外面的表面过滤膜(8),基体骨架是经压制烧结过的预合金化的Fe-Al金属间化合物粉末。该Fe-Al金属间化合物滤芯具有高精度、大通量、低流通阻力、良好反洗再生性能与优异整体结构强度的优点。还涉及一种Fe-Al金属间化合物滤芯的制备方法。

    A METHOD FOR MANUFACTURING A METAL BASED COMPONENT COMPRISING A PROTRUSION

    公开(公告)号:WO2020254426A1

    公开(公告)日:2020-12-24

    申请号:PCT/EP2020/066797

    申请日:2020-06-17

    申请人: HIPTEC AS

    发明人: JARVIS, David

    摘要: The inventive concept relates to method for manufacturing a metal based component comprising at least one protrusion. The method comprises: providing a metal based substrate comprising a surface having at least one cavity; providing a metal based protrusion element comprising a first portion and a second portion, wherein said first portion has a shape that conforms to a shape of the cavity; arranging the first portion of the protrusion element in said cavity such that at least the second portion of the protrusion element protrudes at least 5 mm from a surface of the metal based substrate, to form a substrate comprising a protrusion; placing said substrate comprising a protrusion in a canister such that a void is formed between the canister and the surface of the substrate comprising the protrusion; filling at least a portion of the void with a diamond powder such that the surface of the substrate comprising the protrusion is covered by the inert filler material; removing gas from the interface between said diamond powder and said substrate comprising the protrusion; subjecting said substrate comprising the protrusion to a hot isostatic pressing process for a predetermined time at a predetermined pressure and a predetermined temperature such that said substrate and protrusion element bond metallurgically to each other to form said metal based component comprising said at least one protrusion; removing at least a part of said diamond powder from said metal based component having a protrusion, wherein a melting point of the diamond powder at said predetermined temperature is higher than said predetermined temperature.

    METHOD OF MANUTACTURE AND PREDICTING POWDER DEGREDATION IN AN ADDITIVE MANUFACTURING PROCESS

    公开(公告)号:WO2019102203A1

    公开(公告)日:2019-05-31

    申请号:PCT/GB2018/053386

    申请日:2018-11-23

    发明人: FERRAR, Ben

    摘要: A method of additive manufacture involves building a container (8) and a structure by fusing powder (12, 13, 14), such that the container contains the structure and unfused powder. The container (8) may be used in a method for predicting powder degradation in an additive manufacturing process. Containers containing different types of structure may be built to measure the effect of building different types of structures on powder degradation. A structure to be built may be characterised by classes of structural features it contains and information obtained used from building containers used to predict how building the structure will degrade powder.

    VERFAHREN ZUM SINTERN VON METALLEN, NICHT OXIDISCHEN KERAMIKEN UND ANDEREN OXIDATIONSEMPFINDLICHEN MATERIALIEN

    公开(公告)号:WO2019011359A1

    公开(公告)日:2019-01-17

    申请号:PCT/DE2018/000179

    申请日:2018-06-08

    摘要: Es wird ein Verfahren zur Sinterung von metallischen und/oder nicht oxidischen Komponenten dargestellt. Erfindungsgemäß werden entsprechende Grünkörper, umfassend metallische und/oder nicht oxidische Komponenten, zunächst mit einem Metallhalogensalz (NZ) ummantelt, gasdicht verpresst und anschließend zur Sinterung in einem Metallhalogensalz (NZ) aufgeheizt. Die gegebenenfalls über pulvermetallurgische Verfahren hergestellten Grünkörper können dazu vorzugsweise bei Raumtemperatur mit einem Metallhalogensalz ummantelt und gasdicht verpresst werden. In einer ersten Ausführungsform wird der so ummantelte Grünkörper direkt in ein geschmol- zenes Salzbad gegeben. Alternativ wird der mit einem Metallhalogensalz ummantelte Grünkörper zunächst in ein poröses Salzbad eingebettet und zusammen mit diesem bis wenigstens zur Schmelztemperatur des Salzes aufgeheizt. Eine maximale Temperatur von 1400 °C sollte regelmäßig nicht überschritten werden. Nach dem Abkühlen kann das Salz beispielsweise in Wasser, einer wässrigen Lösung oder einem kurzkettigen Alkohol aufgelöst werden. Die gesinterte Komponente kann entnommen werden. Vorteilhaft kann das Verfahren in Anwesenheit von Luft durchgeführt werden.