Cold work steel
    11.
    发明授权
    Cold work steel 有权
    冷作钢

    公开(公告)号:US07297177B2

    公开(公告)日:2007-11-20

    申请号:US10481269

    申请日:2002-05-17

    Abstract: A cold work steel has the following chemical composition in weight-%: 1.25-1.75% (C+N), however at least 0.5% C 0.1-1.5% Si 0.1-1.5% Mn 4.0-5.5% Cr 2.5-4.5% (Mo+W/2), however max. 0.5% W 3.0-4.5% (V+Nb/2), however max. 0.5% Nb max 0.3% S balance iron and unavoidable impurities, and a microstructure which in the hardened and tempered condition of the steel contains 6-13 vol-% of vanadium-rich MX-carbides, -nitrides and/or carbonitrides which are evenly distributed in the matrix of the steel, where X is carbon and/or nitrogen, at least 90 vol-% of said carbides, nitrides and/or carbonitrides having an equivalent diameter, Deq, which is smaller than 3.0 μm; and totally max. 1 vol-% of other, possibly existing carbides, nitrides or carbonitrides.

    Abstract translation: 冷加工钢具有重量%以下的化学成分:1.25-1.75%(C + N),然而至少0.5%C 0.1-1.5%Si 0.1-1.5%Mn 4.0-5.5%Cr 2.5-4.5%( Mo + W / 2),但最大。 0.5%W 3.0-4.5%(V + Nb / 2),但最大。 0.5%Nb最大0.3%S平衡铁和不可避免的杂质,并且在钢的硬化和回火状态下的微观组织含有6-13体积%的富含钒的MX-碳化物, - 氮化物和/或碳氮化物,其均匀 分布在钢基质中,其中X是碳和/或氮,至少90vol%的所述碳化物,氮化物和/或碳氮化物具有小于3.0μm的当量直径Deq; 最大 1vol%的其他可能存在的碳化物,氮化物或碳氮化物。

    Powder metallurgy manufactured high speed steel
    13.
    发明授权
    Powder metallurgy manufactured high speed steel 有权
    粉末冶金制造高速钢

    公开(公告)号:US06818040B1

    公开(公告)日:2004-11-16

    申请号:US09979025

    申请日:2001-11-15

    Abstract: A powder metallurgy manufactured high speed steel with a high content of nitrogen in the form of a body formed through consolidation of alloyed metal power has the chemical composition in weight-% ; 1-25 C, 1-3.5 N, 0.05-1.7 Mn, 0.05-1.2 Si, 3-6 Cr, 2-5 Mo, 0.05-5W, 6.2-1.7 (V+2 Nb), balance iron and unavoidable impurities in normal amounts, wherein the amount of, on one hand, the carbon equivalent, Ceq, expressed as formula (I), and, on the other hand, the vanadium equivalent, Veq, expressed as Veq=V+2 Nb, are balanced relative to each other such that the amounts of said elements, express in term of said equivalent, will lie within the area A1-B1-C1-D1-A1 in the system of co-ordinates in the figure, in which the Ceq/Veq-co-ordinates of the points A1-D1 are A1: 4.5/17; B1: 5.5/17; C1: 2.5/6.2; D1; 1.5/6.2. The structure of the steel in the hardened and tempered condition, contains 12-40 vol-% of hard matter consisting of particles of MX-type, which are evenly distributed in the matrix of the steel, where M in said hard matter of MX-type essentially consists of vanadium and/or niobium, and X consists of 30-50 weight-% carbon and 50-70 weight-% nitrogen.

    Abstract translation: 粉末冶金制造的高速钢,具有以合金金属强度固结形成的主体形式的氮含量高,化学组成为重量百分比; 1-25℃,1-3.5N,0.05-1.7Mn,0.05-1.2Si,3-6Cr,2-5Mo,0.05-5W,6.2-1.7(V + 2Nb),余量为铁和不可避免的杂质 正常量,其中一方面碳当量Ceq,以式(I)表示,另一方面,钒当量Veq,表示为Veq = V + 2Nb,相对于 使得所述元素的量以所述等价物表示将在图中的坐标系中的区域A1-B1-C1-D1-A1内,其中Ceq / Veq- A1-D1点的坐标为A1:4.5 / 17; B1:5.5 / 17; C1:2.5 / 6.2; D1; 1.5 / 6.2。 钢在硬化和回火状态下的结构含有12-40vol%的由MX型颗粒组成的硬质物质,均匀分布在钢基体中,其中M在所述MX- 类型基本上由钒和/或铌组成,X由30-50重量%的碳和50-70重量%的氮组成。

    Process for producing steel article
    14.
    发明授权
    Process for producing steel article 有权
    钢制品生产工艺

    公开(公告)号:US07563333B2

    公开(公告)日:2009-07-21

    申请号:US11441085

    申请日:2006-05-26

    Abstract: The invention concerns an article of a steel which is characterized in that it consists of an alloy which contains in weight-%: 1.2-2.0 C, 0.1-1.5 Si, 0.1-2.0 Mn, max. 0.2 N, max. 0.25 S, 4-8 Cr, 0.5-3.5 (Mo+W/2), 5-8 V, max. 1.0 Nb, balance essentially only iron and unavoidable impurities, and that the steel has a micro-structure obtainable by a manufacturing of the steel which comprises spray forming of an ingot, the micro-structure of which contains 8-15 vol-% carbides of essentially only MC-type where M substantially consists of vanadium, of which carbides at least 80 vol-% have a substantially rounded shape and a size in the longest extension of the carbides amounting to 1-20 μm.

    Abstract translation: 本发明涉及钢的制品,其特征在于它由以重量%计含有:1.2-2.0C,0.1-1.5Si,0.1-2.0Mn,最大值的合金组成。 0.2 N,最大 0.25 S,4-8 Cr,0.5-3.5(Mo + W / 2),5-8 V,最大 1.0 Nb,基本上仅平衡铁和不可避免的杂质,并且钢具有通过钢的制造可获得的微观结构,该微结构包括喷雾形成锭,其微结构含有8-15体积%的碳化物 基本上只有MC型,其中M基本上由钒组成,其中至少80体积%的碳化物具有基本上圆形的形状,碳化物最长延伸的尺寸为1-20微米。

    Cold Work Steel
    15.
    发明申请
    Cold Work Steel 有权
    冷作钢

    公开(公告)号:US20080053574A1

    公开(公告)日:2008-03-06

    申请号:US11868055

    申请日:2007-10-05

    Abstract: A cold work steel has the following chemical composition in weight-%: 1.25-1.75% (C+N), however at least 0.5% C 0.1-1.5% Si 0.1-1.5% Mn 4.0-5.5% Cr 2.5-4.5% (Mo+W/2), however max. 0.5% W 3.0-4.5% (V+Nb/2), however max. 0.5% Nb max 0.3% S balance iron and unavoidable impurities, and a microstructure which in the hardened and tempered condition of the steel contains 6-13 vol-% of vanadium-rich MX-carbides, -nitrides and/or carbonitrides which are evenly distributed in the matrix of the steel, where X is carbon and/or nitrogen, at least 90 vol-% of said carbides, nitrides and/or carbonitrides having an equivalent diameter, Deq, which is smaller than 3.0 μm; and totally max. 1 vol-% of other, possibly existing carbides, nitrides or carbonitrides.

    Abstract translation: 冷加工钢具有重量%以下的化学成分:1.25-1.75%(C + N),然而至少0.5%C 0.1-1.5%Si 0.1-1.5%Mn 4.0-5.5%Cr 2.5-4.5%( Mo + W / 2),但最大。 0.5%W 3.0-4.5%(V + Nb / 2),但最大。 0.5%Nb最大0.3%S平衡铁和不可避免的杂质,并且在钢的硬化和回火状态下的微观组织含有6-13体积%的富含钒的MX-碳化物, - 氮化物和/或碳氮化物,其均匀 分布在钢的基体中,其中X是碳和/或氮,至少90vol%的所述碳化物,氮化物和/或碳氮化物具有相当的直径D eq eq 超过3.0个妈妈 最大 1vol%的其他可能存在的碳化物,氮化物或碳氮化物。

    Steel alloy, holders and holder details for plastic moulding tools, and tough hardened blanks for holders and holder details
    16.
    发明申请
    Steel alloy, holders and holder details for plastic moulding tools, and tough hardened blanks for holders and holder details 有权
    钢合金,塑料成型工具的支架和支架细节,以及用于支架和支架细节的坚硬硬化坯料

    公开(公告)号:US20070006949A1

    公开(公告)日:2007-01-11

    申请号:US11519788

    申请日:2006-09-13

    Abstract: A steel alloy suitable for holders and holder details for plastic moulding tools contains in weight-%: 0.06-0.15 C, 0.07-0.22 N, wherein the total amount of C+N shall satisfy the condition, 0.16≦C+N≦0.26, 0.1-1.0 Si, 0.1-2.0 Mn, 12.5-14.5 Cr, 0.8-2.5 Ni, 0.1 1.5 Mo, optionally vanadium up to max. 0.7 V, optionally, in order to improve the machinability of the steel, one or more of the elements S, Ca and O in amounts up to max. 0.25 S, max. 0.01 (100 ppm) Ca, max. 0.01 (100 ppm) O, balance iron and unavoidable impurities.

    Abstract translation: 适用于塑料模具的支架和支架细节的钢合金重量含量:0.06-0.15 C,0.07-0.22 N,其中C + N的总量应满足条件0.16 <= C + N <= 0.26,0.1-1.0Si,0.1-2.0 Mn,12.5-14.5 Cr,0.8-2.5 Ni,0.1 1.5 Mo,任选的钒直到最大。 0.7 V,任选地,为了提高钢的机械加工性,一种或多种元素S,Ca和O. 0.25 S,最大 0.01(100ppm)Ca,最大 0.01(100ppm)O,余量为铁和不可避免的杂质。

    Steel article
    17.
    发明申请
    Steel article 有权
    钢制品

    公开(公告)号:US20060231172A1

    公开(公告)日:2006-10-19

    申请号:US11441085

    申请日:2006-05-26

    Abstract: The invention concerns an article of a steel which is characterized in that it consists of an alloy which contains in weight-%: 1.2-2.0 C, 0.1-1.5 Si, 0.1-2.0 Mn, max. 0.2 N, max. 0.25 S, 4-8 Cr, 0.5-3.5 (Mo+W/2), 5-8 V, max. 1.0 Nb, balance essentially only iron and unavoidable impurities, and that the steel has a micro-structure obtainable by a manufacturing of the steel which comprises spray forming of an ingot, the micro-structure of which contains 8-15 vol-% carbides of essentially only MC-type where M substantially consists of vanadium, of which carbides at least 80 vol-% have a substantially rounded shape and a size in the longest extension of the carbides amounting to 1-20 μm.

    Abstract translation: 本发明涉及钢的制品,其特征在于它由以重量%计含有:1.2-2.0C,0.1-1.5Si,0.1-2.0Mn,最大值的合金组成。 0.2 N,最大 0.25 S,4-8 Cr,0.5-3.5(Mo + W / 2),5-8 V,最大 1.0 Nb,基本上仅平衡铁和不可避免的杂质,并且钢具有通过钢的制造可获得的微观结构,该微结构包括喷雾形成锭,其微结构含有8-15体积%的碳化物 基本上只有MC型,其中M基本上由钒组成,其中至少80体积%的碳化物具有基本上圆形的形状,碳化物最长延伸的尺寸为1-20微米。

    Steel cold work tool, its use and manufacturing
    18.
    发明授权
    Steel cold work tool, its use and manufacturing 失效
    钢冷作工具,其使用和制造

    公开(公告)号:US06837945B1

    公开(公告)日:2005-01-04

    申请号:US09959455

    申请日:2000-04-28

    Abstract: The invention concerns a steel article, which consists of an alloy having a chemical composition, which contains in weight-%: 1.2 to 2.5 C; 0.8 to 2.0 Si, which partly can be replaced by aluminium, which may exist in an amount of max 1.0%; 0.1 to 1.5 Mn; 0.5 to 1.5 Cr; 1.2 to 5.0 (V+Nb/2), however max 1.0 Nb; balance iron and impurities in normal amounts, and having a microstructure which contains 4 to 12 volume-% of MC-carbides. The steel article can be used for manufacturing of cold-work tools, particularly pilger rolls for cold rolling of tubes. The invention also relates to a method of manufacturing the article.

    Abstract translation: 本发明涉及一种钢制品,其由具有化学组成的合金组成,其重量%:1.2-2.5℃; 0.8〜2.0Si,其部分可以由铝代替,其可以以最大1.0%的量存在; 0.1〜1.5 Mn; 0.5〜1.5 Cr; 1.2〜5.0(V + Nb / 2),但最大1.0Nb; 平衡铁和正常量的杂质,并且具有含有4-12体积%的MC-碳化物的微结构。 钢制品可用于制造冷作工具,特别是用于冷轧管的卷取辊。 本发明还涉及一种制造制品的方法。

    Steel material for hot work tools
    19.
    发明授权
    Steel material for hot work tools 有权
    钢材用于热作工具

    公开(公告)号:US06365096B1

    公开(公告)日:2002-04-02

    申请号:US09646782

    申请日:2000-09-22

    CPC classification number: C22C38/22 C22C38/18 C22C38/24

    Abstract: A steel material for hot work tools has an alloy composition that in weight-% essentially consists of: 0.3-0.4 C, 0.2-0.8 Mn, 4-6 Cr, 1.8-3 Mo, 0.4-0.8 V, balance iron and unavoidable metallic and non-metallic impurities, said non-metallic impurities comprising silicon, nitrogen, oxygen, phosphor and sulfur, the contents of which does not exceed the following maximum contents: max. 0.25 Si, max. 0.010 N, max. 10 ppm O, max. 0.010 weight-% P.

    Abstract translation: 用于热加工工具的钢材具有重量百分比基本上由以下组成的合金组成:0.3-0.4℃,0.2-0.8Mn,4-6Cr,1.8-3Mo,0.4-0.8V,余量铁和不可避免的金属 和非金属杂质,所述非金属杂质包括硅,氮,氧,磷和硫,其含量不超过以下最大含量: 0.25 Si,最大 0.010 N,最大 10 ppm O,最大 0.010重量%P.

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