公开(公告)号：US20230035760A1

公开(公告)日：2023-02-02

申请号：US17958637

申请日：2022-10-03

Applicant: UDDEHOLMS AB

Inventor： Venkata Seshendra Karamchedu ,  Anna Medvedeva ,  Christos Oikonomou ,  Jesper Erik Joachim Sparrevohn Vang ,  Petter Damm

IPC: C22C38/44 ,  B33Y70/00 ,  C23C4/067 ,  B22F3/105 ,  B22F3/115 ,  B22F3/15 ,  B22F3/20 ,  C22C33/02 ,  C22C33/04 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/54 ,  B22F1/052

Abstract: A pre-alloyed powder having a composition consisting of, in weight % (wt. %): C, 0.02-0.04; Si, 0.1-0.4; Mn, 0.1-0.5; Cr, 11-13; Ni, 7-10; Cr+Ni, 19-23; Mo, 1-25; Al, 1.4-2.0; N, 0.01-0.75. Optionally, the pre-alloyed powder contains: Cu, 0.05-2.5; B, 0.002-2.0; S, 0.01-0.25; Nb, 0.01 max; Ti, 2 max; Zr, 2, max; Ta, 2 max; Hf, 2 max; Y, 2 max; Ca, 0.0003-0.009; Mg, 0.01 max; O, 0.003-0.80; and REM, 0.2 max. Fe and impurities comprise the balance.

公开(公告)号：US20160355909A1

公开(公告)日：2016-12-08

申请号：US15117578

申请日：2015-02-09

Applicant: UDDEHOLMS AB

Inventor： Magnus TIDESTEN ,  Lena RAHLEN

IPC: C22C38/46 ,  C22C38/06 ,  C22C38/04 ,  C21D9/00 ,  C22C38/00 ,  B29C33/38 ,  C21D6/00 ,  C21D6/02 ,  C22C38/44 ,  C22C38/02

CPC classification number: C22C38/46 ,  B29C33/38 ,  B29K2905/00 ,  B29K2905/12 ,  C21D6/002 ,  C21D6/004 ,  C21D6/02 ,  C21D9/0068 ,  C21D2211/001 ,  C21D2211/004 ,  C22C38/001 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/22 ,  C22C38/24 ,  C22C38/44 ,  C22C38/60

Abstract: The invention relates to a martensitic stainless steel for plastic forming moulds requiring a high hardness and a good corrosion resistance. The stainless steel consists of in weight % (wt. %): C 0.56-0.82, N 0.08-0.25, C+N 0.60-1.0, Si 1.05-2.0, Mn 0.2-1.0, Cr 12-16, Mo 0.1-0.8, V 0.10-0.45, Al≦0.3, P≦0.05, S≦0.5, optional elements, and balance Fe impurities.

Abstract translation: 本发明涉及一种用于塑性成型模具的马氏体不锈钢，其需要高硬度和良好的耐腐蚀性。 不锈钢以重量％（重量％）：C 0.56-0.82，N 0.08-0.25，C + N 0.60-1.0，Si 1.05-2.0，Mn 0.2-1.0，Cr 12-16，Mo 0.1-0.8 ，V 0.10-0.45，Al≤0.3，P≤0.05，S≤0.5，任选元素，余量为Fe杂质。

公开(公告)号：US20160214177A1

公开(公告)日：2016-07-28

申请号：US14917521

申请日：2014-10-02

Applicant: UDDEHOLMS AB

Inventor： Sebastian Ejnermark ,  Thomas Hillskog ,  Lars Ekman ,  Rikard Robertsson ,  Victoria Bergqvist ,  Jenny Karlsson ,  Petter Damm ,  Ulrika Mossfeldt ,  Roland Edvinsson ,  Annika Engstrom Svensson ,  Berne Hogman

IPC: B22F3/15 ,  C22C38/22 ,  C22C38/04 ,  C22C38/02 ,  C22C38/00 ,  C21D9/00 ,  C21D6/00 ,  C21D1/18 ,  C23C8/24 ,  C23C8/80 ,  B22F9/08 ,  B22F1/00 ,  C21D1/613 ,  B22F3/24 ,  C22C38/24

CPC classification number: B22F3/15 ,  B22F1/0003 ,  B22F3/24 ,  B22F9/08 ,  B22F2003/248 ,  B22F2201/02 ,  B22F2301/35 ,  C21D1/18 ,  C21D1/613 ,  C21D6/002 ,  C21D6/005 ,  C21D6/008 ,  C21D9/0068 ,  C22C33/0285 ,  C22C38/001 ,  C22C38/02 ,  C22C38/04 ,  C22C38/22 ,  C22C38/24 ,  C22C38/40 ,  C23C8/24 ,  C23C8/80

Abstract: The invention relates to a corrosion and wear resistance cold work tool steel. The steel includes the following main components (in wt. %): C 0.3-0.8, N 1.0-2.2, (C+N) 1.3-2.2, C/N 0.17-0.50, Si≦1.0, Mn 0.2-2.0, Cr 13-30, Mo 0.5-3.0, V 2.0-5.0, balance optional elementals, iron and impurities.

Abstract translation: 本发明涉及耐腐蚀和耐磨冷作工具钢。 钢包含以下主要成分（重量％）：C 0.3-0.8，N 1.0-2.2，（C + N）1.3-2.2，C / N 0.17-0.50，Si≤1.0，Mn 0.2-2.0，Cr 13-30，Mo 0.5-3.0，V 2.0-5.0，平衡可选元素，铁和杂质。

公开(公告)号：US3898079A

公开(公告)日：1975-08-05

申请号：US40386073

申请日：1973-10-05

Applicant: UDDEHOLMS AB

Inventor： ERIKSSON LARS ANDERS

IPC: C21C5/34 ,  C21C5/28 ,  C21C5/46 ,  C21C7/068 ,  C22C33/00 ,  C21C5/32

CPC classification number: C21C5/4606 ,  C21C7/0685 ,  C22C33/00

Abstract: In a process for refining stainless steel where oxygen and ammonia are introduced into a molten steel, e.g. for decarburisation and/or introducing nitrogen into the steel, the ammonia is introduced separately from the oxygen through a tuyere comprising at least two co-axial pipes. The ammonia is preferably introduced through a pipe which is not an outermost pipe. This procedure reduces the risk of the melt solidifying around the ammonia pipe and avoids the need to use combustible oxygen/ammonia mixtures.

Abstract translation: 在用于精炼不锈钢的方法中，其中将氧和氨引入钢水中，例如， 为了对钢进行脱碳和/或引入氮气，氨通过包括至少两个同轴管的风口与氧气分开引入。 氨优选通过不是最外管的管引入。 该方法降低了氨管周围的熔体凝固的风险，避免了使用可燃性氧/氨混合物的需要。

公开(公告)号：US3867135A

公开(公告)日：1975-02-18

申请号：US29535572

申请日：1972-10-05

Applicant: UDDEHOLMS AB

Inventor： JOHNSSON HANS KLAS OLOF ,  ERIKSSON LARS ANDERS

IPC: C21C5/34 ,  C21C5/28 ,  C21C7/00 ,  C21C7/068 ,  C22B23/06 ,  C22C33/04 ,  C22C38/18

CPC classification number: C21C7/068 ,  C21C7/0685

Abstract: The carbon content in iron, cobalt, or nickel based alloys containing at least about 16 percent chromium is substantially eliminated without significant loss of chromium by blowing the alloy with oxygen to oxidise the carbon and simultaneously introducing steam or ammonia in amounts such that the partial pressure of carbon monoxide (formed by oxidation of carbon) is lower than that which corresponds to the equilibrium pressure for the carbon/chromium oxidation e.g. below 0.95 and preferably below 0.5 atmospheres.

Abstract translation: 含有至少约16％铬的铁，钴或镍基合金中的碳含量基本上消除，而不会因氧气而使碳合金氧化而同时引入蒸汽或氨，从而使得分压 的一氧化碳（由碳的氧化形成）低于对应于碳/铬氧化的平衡压力的一氧化碳，例如 低于0.95，优选低于0.5大气压。

公开(公告)号：US3702268A

公开(公告)日：1972-11-07

申请号：US3702268D

申请日：1969-05-23

Applicant: UDDEHOLMS AB

Inventor： JAKENBERG KLAS-ERIK

IPC: C21D8/02 ,  C22C38/18 ,  C21D7/00 ,  C21D9/24

CPC classification number: C21D8/0205 ,  C22C38/18 ,  Y10S148/905

Abstract: THERE IS PROVIDED A STEEL FOR MAKING SAW BLADES, AND A SAW BLADE MADE FROM THE STEEL. THE STEEL HAVING AN ANALYSIS OF UP TO 20% CR, 0.2-1.5% C, AND A MAXIMUM OF 6% ADDITIONAL ALLOYING ELEMENTS AND BEING SUCH THAT IT HAS A FERRITE MATRIX IN THE TEMPERATURE RANGE OF 550790*C., AND IN WHICH RANGE THE STEEL IN A FERRITIC STATE HAS BEEN ROLLED TO A TOTAL AREA REDUCTION OF AT LEAST 60%.

公开(公告)号：US3613699A

公开(公告)日：1971-10-19

申请号：US3613699D

申请日：1969-07-29

Applicant: UDDEHOLMS AB

Inventor： HOLM KUR ANDERS

IPC: C23G5/04 ,  B01D3/00

CPC classification number: C23G5/04

Abstract: An apparatus for removing grease, oil and fat from articles consists of means for boiling a solvent so that the vapor fills a chamber in which the cool articles are placed. The wall of the chamber is designed as a lid which can be lifted for facilitating the insertion and removal of the articles. A spraying means for liquid solvent is arranged in the upper part of the treating chamber to spray liquid solvent over the articles.

公开(公告)号：US3479252A

公开(公告)日：1969-11-18

申请号：US3479252D

申请日：1967-11-03

Applicant: UDDEHOLMS AB

Inventor： HOLM KURT ANDERS ,  HANSSON RUNE EINAR

IPC: C23G5/04 ,  B01D3/42 ,  B01D3/00

CPC classification number: C23G5/04

公开(公告)号：US3450610A

公开(公告)日：1969-06-17

申请号：US3450610D

申请日：1964-11-30

Applicant: UDDEHOLMS AB

Inventor： FRODEN CARL ERIK HOLGER

IPC: C25F1/06 ,  C23B1/06

CPC classification number: C25F1/06

公开(公告)号：US3425877A

公开(公告)日：1969-02-04

申请号：US3425877D

申请日：1965-10-22

Applicant: WILKINSON SWORD LTD ,  UDDEHOLMS AB

Inventor： DEACON ROGER FREDERICK

IPC: B26B21/58 ,  C22C38/18 ,  C21D7/14 ,  C21D9/18

CPC classification number: C22C38/18 ,  B26B21/58 ,  Y10S148/905