利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

6 条记录 (耗时 0.011 秒)

    COLD WORKING TOOL MATERIAL AND COLD WORKING TOOL MANUFACTURING METHOD
    5.
    发明公开
    COLD WORKING TOOL MATERIAL AND COLD WORKING TOOL MANUFACTURING METHOD 审中-公开
    冷作工具材料和冷作工具制造方法

    公开(公告)号：EP3305934A1

    公开(公告)日：2018-04-11

    申请号：EP16894605.1

    申请日：2016-12-27

    申请人： Hitachi Metals, Ltd.

    发明人： SHOUJI, Tatsuya ,  MISHIMA, Setsuo ,  SHINJI, Yukio ,  KURODA,Katsufumi

    IPC分类号： C22C38/00 ,  C21D6/00 ,  C21D9/00 ,  C22C38/36 ,  C22C38/60

    摘要： Provided are a cold working tool material with which high hardness can be obtained in a broad range of tempering temperatures, and a cold working tool manufacturing method using same. The present invention is a cold working tool material comprising a steel component composition that contains, in mass%, C: 0.65-2.40%, Cr: 5.0-15.0%, Mo and W alone or combined (Mo+1/2W): 0.50-4.00%, V: 0.10-1.50%, and N: greater than 0.0300% to 0.0800%, in which martensitic structure can be adjusted by quenching, and in which, in a 90 µm long 90 µm wide region of a cross-sectional structure that does not contain carbides with equivalent circle diameters exceeding 5.0 µm, the number density of carbides A with equivalent circle diameters greater than 0.1 µm to 2.0 µm is at least 9.0 × 105/mm2 and the number density of carbides B with equivalent circle diameters greater than 0.1 µm to 0.4 µm is at least 7.5 × 105/mm2. The present invention is also a cold working tool manufacturing method in which quenching and tempering are performed on said cold working tool material.

    摘要翻译： 本发明提供一种在宽范围的回火温度下可获得高硬度的冷加工工具材料及使用其的冷加工工具制造方法。 本发明是一种冷加工工具用材料，其含有以质量％计含有C：0.65〜2.40％，Cr：5.0〜15.0％，Mo和W单独或组合（Mo + 1 / 2W）：0.50 -4.00％，V：0.10-1.50％，N：大于0.0300％-0.0800％，其中马氏体组织可通过淬火来调节，并且其中在横截面90μm长的90μm宽的区域 不包含当量圆直径超过5.0μm的碳化物的结构，当量圆直径大于0.1μm〜2.0μm的碳化物A的个数密度为9.0×10 5个/ mm 2以上，并且当量圆直径的碳化物B的个数密度 大于0.1μm至0.4μm至少为7.5×105 / mm2。 本发明还是一种冷加工工具制造方法，其中对所述冷加工工具材料进行淬火和回火。

    COLD WORK TOOL MATERIAL, COLD WORK TOOL AND METHOD FOR MANUFACTURING SAME
    6.
    发明公开
    COLD WORK TOOL MATERIAL, COLD WORK TOOL AND METHOD FOR MANUFACTURING SAME 审中-公开
    冷作工具材料，冷作工具和制造该工具的方法

    公开(公告)号：EP3255165A1

    公开(公告)日：2017-12-13

    申请号：EP16746354.6

    申请日：2016-01-07

    申请人： Hitachi Metals, Ltd.

    发明人： SHOUJI, Tatsuya ,  SHINJI, Yukio ,  KURODA, Katsufumi

    IPC分类号： C22C38/00 ,  B21J13/02 ,  C21D6/00 ,  C22C38/36 ,  C21D8/00

    CPC分类号： C21D7/13 ,  B21J1/04 ,  B21J13/02 ,  C21D1/18 ,  C21D1/22 ,  C21D6/002 ,  C21D8/005 ,  C21D2211/004 ,  C21D2211/008 ,  C22C38/00 ,  C22C38/001 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/20 ,  C22C38/22 ,  C22C38/24

    摘要： Provided is a cold work tool material capable of reducing dimensional changes which occur, due to heat treatment, in the longitudinal direction of the material during quenching and tempering. This cold work tool material is drawn through hot working, has an annealed structure including carbides, and is used after being quenched and tempered, wherein, in the annealed structure which is formed in a cross section parallel to a drawing direction due to the hot working of the cold work tool material, the standard deviation in the degree of orientation of carbides Oc, as determined by equation (1) below, is 6.0 or more for carbides having a circle equivalent diameter of 5.0 µm or greater as observed in the annealed structure in the cross section at right angle to a direction perpendicular to the drawing direction. Oc=D×θ...(1), where D represents the circle equivalent diameter (µm) of the carbide, and 0 represents the angle (rad) between the major axis of an approximate ellipse of the carbide and the drawing direction. A cold work tool using the cold work tool material and a method for manufacturing the same are also provided.

    摘要翻译： 本发明提供一种冷加工用工具材料，其能够减少由于热处理而在淬火和回火过程中沿材料的纵向发生的尺寸变化。 该冷作工具材料通过热加工被拉伸，具有包含碳化物的退火组织，并且在经过淬火和回火之后使用，其中，在由于热加工而形成在与拉制方向平行的截面中的退火组织 在退火构造中观察到的碳当量直径为5.0μm以上的碳化物的碳化物的取向度的标准偏差如下式（1）所示那样为6.0以上 在与垂直于拉伸方向的方向成直角的截面中。 Oc = D×θ...（1）其中，D表示碳化物的当量圆直径（μm），0表示碳化物的近似椭圆的长轴与拉伸方向之间的角度（弧度）。 还提供了使用冷作工具材料的冷作工具及其制造方法。