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    DEVICE FOR STRENGTHENING THE SURFACE OF PRODUCTS, METHOD AND USE THEREOF
    2.
    发明申请
    DEVICE FOR STRENGTHENING THE SURFACE OF PRODUCTS, METHOD AND USE THEREOF 审中-公开

    公开(公告)号：WO2021170156A1

    公开(公告)日：2021-09-02

    申请号：PCT/CZ2021/000009

    申请日：2021-02-26

    Applicant: USTAV TERMOMECHANIKY AV CR, V.V.I.

    Inventor： ŠONSKÝ, Jiří

    IPC: C21D7/02 ,  C21D7/04 ,  C21D10/00 ,  C21D1/09 ,  B23H7/38 ,  C21D1/06 ,  B23P9/04 ,  B21D31/06 ,  C21D7/06

    Abstract: The invention relates to a method and a device for strengthening the surface of workpieces, in particular of metal ones, by mechanical effects accompanying the impact of small projectiles or by mechanical effects accompanied by the impact of a shockwave induced by plasma created by electric evaporation of a metal foil, wherein the device comprises a polymer strip (32} which is provided with a metal foil (71) on the surface of the side diverted from the surface of the workpiece (10) in which foil bridges (34) are formed to form projectiles (100), further comprising two electrodes (33) and (66) adjacent to the metal foil (71) located on the polymer strip (32),wherein bridges (34) are formed between the contact surface areas (27) of the metal foil (71), and the electrodes (33) and (66) between which the plasma is formed, are mounted in a support body (41), through which flat conductors (44) and (46) are connected to a switch (84) for switching large currents and high voltages with a high-voltage source (83), wherein the polymer strip (32) provided with the metal foil (71) tightly abuts the support body (41) with the electrodes (33) and (66) and the electrodes (33) and (66) protrude above the upper surface of the support body (41) to provide electric contact with the contact surface areas (27; of the applied metal foil (71). The method of strengthening the surface of workpieces (10) by means of the device according to the invention consists in that one cycle of strengthening the surface of workpieces (10) involves the action of an electric current pulse supplied from a high voltage source (83) after closing the switch (84) by conductors (44, 46; to electrodes (33, 66) between which a high voltage is applied, thereby shorting the circuit on the metal foil (71) at the location of the bridges (34) to form a plasma expanding and by a. compressive force acting on the polymer strip (32)part of which hits as a projectile (100) the surface of the workpiece (10), wherein the plasma generated by the electric current pulse, in addition to the expansion pressure, is also accelerated by the electromagnetic Lorentz force (20) caused by the passage of electric current, through this plasma in the generated magnetic field.

    치과 임플란트의 픽스쳐와 지대주 사이의 치밀면 형성법
    3.
    发明申请
    치과 임플란트의 픽스쳐와 지대주 사이의 치밀면 형성법 审中-公开

    公开(公告)号：WO2021040443A2

    公开(公告)日：2021-03-04

    申请号：PCT/KR2020/011517

    申请日：2020-08-28

    Applicant: 이태경 ,  임종환

    Inventor： 이태경 LEE, Taekyoung

    IPC: A61C13/00 ,  A61C13/02 ,  A61C8/00 ,  B21J13/02 ,  B21J13/08 ,  C21D1/02 ,  C21D7/02

    Abstract: 개시되는 발명은 치과 임플란트 구성부품의 체결부에 대한 치밀면 형성법에 관한 것으로서, 치과 임플란트의 구성부품에 대해 절삭가공을 통해 음형 또는 양형의 체결부를 1차적으로 형성하는 단계;와, 상기 1차 가공된 구성부품을 단조 장치에 대해 고정하는 단계;와, 상기 단조 장치에 고정된 1차 가공된 구성부품의 체결부에 대해 가압 단조를 수행하여 치밀면을 형성하는 단계; 및 상기 단조 가공된 체결부의 치밀면에 대해 절삭 가공을 2차적으로 수행하여 최종 치수로 완성하는 단계;를 포함한다.

    A PROCESS OF INDUCTION HARDENING TREATMENT AT STEEL CHEESE TUBE EDGE FOR HIGH IMPACT RESISTANCE
    6.
    发明申请
    A PROCESS OF INDUCTION HARDENING TREATMENT AT STEEL CHEESE TUBE EDGE FOR HIGH IMPACT RESISTANCE 审中-公开

    公开(公告)号：WO2019123485A1

    公开(公告)日：2019-06-27

    申请号：PCT/IN2018/050869

    申请日：2018-12-22

    Applicant: SIDDHI ENGINEERS

    Inventor： PATEL, Bhagwat Ramanbhai ,  GANDHI, Prashant Ramniklal ,  PATEL, Shailesh Ramanlal

    IPC: C21D1/42 ,  C21D8/10 ,  C21D9/08 ,  C21D1/18 ,  C21D1/02 ,  C21D7/02 ,  C22C38/00 ,  C22C38/04

    Abstract: The present invention relates to a process of induction hardening treatment at steel cheese tube edge for high impact resistance. More particularly, it relates to induction hardening treatment only at the edges of steel cheese tube used in winding flat tape yarn. Steel hardening is followed by process of heating and quenching the ends of steel tube. An induction hardening provides improved protection to the edges when the tube with filled up flat tape yarn or empty tube undergoes repeating rotations, movement, transportation, handling as well as during inserting/loading the cheese tubes on spindle winder machines. It is also cost effective in terms of repeated number of rotations in winding process. The present invention provides advantages in terms of super high strength at the ends and protection against deformation, combination of ductility and strength at the central portion of the tube, light weight, multiple usage and longer life coupled with economy per usage.

    STAHLFLACHPRODUKT UND DURCH UMFORMEN EINES SOLCHEN STAHLFLACHPRODUKTS HERGESTELLTES STAHLBAUTEIL
    8.
    发明申请
    STAHLFLACHPRODUKT UND DURCH UMFORMEN EINES SOLCHEN STAHLFLACHPRODUKTS HERGESTELLTES STAHLBAUTEIL 审中-公开
    通过形成这种钢平板产品制造的钢平板产品和钢部件

    公开(公告)号：WO2017055107A1

    公开(公告)日：2017-04-06

    申请号：PCT/EP2016/071989

    申请日：2016-09-16

    Applicant: THYSSENKRUPP STEEL EUROPE AG

    Inventor： HOFMANN, Harald ,  SCHIRMER, Matthias ,  THOMAS, Ingo

    IPC: C21D7/02 ,  C25D3/22 ,  C22C38/04 ,  C22C38/06 ,  C22C38/24 ,  C22C38/26

    CPC classification number: C21D9/46 ,  B32B15/013 ,  C21D7/02 ,  C21D8/0236 ,  C21D8/0284 ,  C21D2211/001 ,  C21D2211/008 ,  C22C18/00 ,  C22C38/001 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/08 ,  C22C38/12 ,  C22C38/14 ,  C22C38/24 ,  C22C38/26 ,  C22C38/44 ,  C22C38/46 ,  C22C38/48 ,  C22C38/50 ,  C22C38/58 ,  C25D3/565 ,  C25D7/0614

    Abstract: Die Erfindung stellt aus einem Stahl hergestellte, für eine Kaltverformung vorgesehene Stahlflachprodukte zur Verfügung, bei denen eine optimale Kombination aus Schweißbarkeit und geringer Neigung zur verzögerten Bildung von Rissen bei guter Festigkeit, Warm- und Kaltverformbarkeit gesichert ist. Ein erfindungsgemäßes Stahlflachprodukt ist dabei mit einer Zn- Beschichtung beschichtet, deren Basis Zink ist und die neben den durch den Herstellungsprozess in die Zn-Beschichtung gelangenden Bestandteilen optional zusätzlich jeweils 5 - 20 Gew.-% Ni oder Mo enthält, wobei das Stahlsubstrat des Stahlflachprodukts aus einem Stahl besteht, der als Pflichtbestandteile (in Gew.-%) C: 0,1 - 1,0 %, Mn: 10 - 30 %, AI: 0,3 - 2,5 % und als Rest Eisen und unvermeidbare Verunreinigungen enthält und der als Wahlbestandteil zusätzlich eines oder mehrere der nachfolgend genannten Elemente mit der Maßgabe Ni: 0,1 - 2 %, Mo: 0,1 - 2 %, Si: bis zu 3 %, Cr, Cu: jeweils bis zu 5 %, P: bis zu 0,1 %, S: bis zu 0,03 %, Ti, Nb, V, Zr, Co: jeweils bis zu 0,5 %,W: bis zu 0,5 %, Sn, Sb, As: in Summe bis zu 0,5 %, Ca: bis zu 0,015 %, B: bis zu 0,1 %, SEM: bis zu 1 %, N: bis zu 0,1 % enthalten kann, wobei die Zusammensetzungen der Zn-Beschichtung und des Stahlsubstrats so aufeinander abgestimmt sind, dass der Betrag der mittleren Potenzialdifferenz zwischen der Zn-Beschichtung und dem Stahlsubstrat maximal 0,44 V beträgt.

    Abstract translation: 本发明提供了用于由钢冷成形而制备的钢板产品，其中可焊性和低的形成有害裂纹的趋势的最佳组合具有良好的强度 确保冷热加工性。 的发明＆AUML;道路是平坦的钢产品，由此涂覆有锌基涂层，其基极是锌，除了在制造过程中的Zn镀层到达成分任选地另外突然BEAR每5-20重量％的Ni或Mo含有＆AUML 其中，所述扁钢产品的钢基材由强制钢（以重量％计）C：0.1-1.0％，Mn：10-30％，Al：0.3-2.5 ％，余量为铁和不可避免的杂质，并且任选的成分额外地为以下指定的元素中的一种或多种：Ni：0.1-2％，Mo：0.1-2％，Si： Cr：Cu：各达5％，P：0.1％以下，S：0.03％以下，Ti，Nb，V，Zr，Co各0.5％以下 ，W：高达0.5％，Sn：Sb，As：合计高达0.5％，Ca：高达0.015％，B：高达0.1％，SEM：高达1％，N： 可以含有高达0.1％，其中Zn涂层和钢基材的组成如此自然 彼此协调，使得Zn涂层和钢基材之间的平均电势差的量最多为0.44V

    炭素鋼線およびその製造方法
    9.
    发明申请
    炭素鋼線およびその製造方法 审中-公开
    碳钢丝及其制造方法

    公开(公告)号：WO2016080468A1

    公开(公告)日：2016-05-26

    申请号：PCT/JP2015/082465

    申请日：2015-11-18

    Applicant: 株式会社ブリヂストン

    Inventor： 大野　義昭

    IPC: B21C1/00 ,  B21C1/12 ,  C21D7/02

    CPC classification number: C21D7/10 ,  B21C1/00 ,  B21C1/04 ,  B21C1/12 ,  C21D9/52

    Abstract: 　従来よりも、耐せん断性に優れた炭素鋼線およびその製造方法を提供する。　０．１～０．６ｍｍの線径を有する炭素鋼線１であり、長手方向と直交する円形断面の半径をｒとし、円形断面の外周から中心に向かって０．４ｒまでの領域を表層部２としたとき、表層部２における、長手方向に対する［１１０］方位の集合組織の占有率が６０％以下である。

    Abstract translation: 提供：与常规碳钢丝相比具有优异的抗剪切性的碳钢丝; 及其制造方法。 该碳素钢丝是线径为0.1〜0.6mm的碳素钢丝1，其中，当假设垂直于纵向方向的圆形横截面的半径为r时，并且朝向 圆形截面的外周的中心是表面层部2，表层部2的相对于长度方向的[110]取向的质地占有率为60％以下。

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