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公开(公告)号：US08894778B2
公开(公告)日：2014-11-25
申请号：US12078898
申请日：2008-04-08
申请人： Toshiyuki Morita , Kouji Ohbayashi , Masaki Kuwabara , Taro Matsukawa , Yutaka Eto , Kohki Mizuno
发明人： Toshiyuki Morita , Kouji Ohbayashi , Masaki Kuwabara , Taro Matsukawa , Yutaka Eto , Kohki Mizuno
IPC分类号： C23C8/22 , C21D1/06 , C21D9/32 , C21D6/02 , C22C38/42 , C22C38/02 , C21D1/74 , C22C38/04 , C22C38/08
摘要： The present invention relates to a mechanical part, which is obtained by: processing a steel into a shape of a part, the steel having an alloy composition containing, by weight percent, C: 0.10 to 0.30%, Si: 0.50 to 3.00%, Mn: 0.30 to 3.00%, P: 0.030% or less, S: 0.030% or less, Cu: 0.01 to 1.00%, Ni: 0.01 to 3.00%, Cr: 0.20 to 1.00%, Al: 0.20% or less, N: 0.05% or less, and the remainder of Fe and inevitable impurities, and the alloy composition satisfying the following condition: [Si %]+[Ni %]+[Cu %]−[Cr %]>0.50, in which [Si %], [Ni %], [Cu %] and [Cr %] represent the concentration of Si, the concentration of Ni, the concentration of Cu and the concentration of Cr in the alloy composition, respectively; subjecting the steel to a carburizing treatment in a vacuum, followed by gradually cooling the steel; and subsequently subjecting the steel to a high-frequency hardening to thereby harden a surface of the steel.
摘要翻译： 本发明涉及一种机械部件，其通过以下步骤获得：将钢加工成部件的形状，所述钢具有合金组成，所述合金组合物以重量百分比含有C：0.10至0.30％，Si：0.50至3.00％， Mn：0.30〜3.00％，P：0.030％以下，S：0.030％以下，Cu：0.01〜1.00％，Ni：0.01〜3.00％，Cr：0.20〜1.00％，Al：0.20％以下，N ：0.05％以下，余量为Fe和不可避免的杂质，合金组成满足下列条件：[Si％] + [Ni％] + [Cu％] - [Cr％]> 0.50，其中[Si ％]，[Ni％]，[Cu％]和[Cr％]分别表示合金组成中Si的浓度，Ni的浓度，Cu的浓度和Cr的浓度; 在真空中对钢进行渗碳处理，然后逐渐冷却钢; 然后对钢进行高频硬化，使钢的表面硬化。
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2.发明授权公开(公告)号：US07988796B2
公开(公告)日：2011-08-02
申请号：US11976646
申请日：2007-10-26
申请人： Kouji Ohbayashi , Kazuaki Okada , Taro Matsukawa , Yutaka Eto , Koki Mizuno , Kazumichi Tsukuda
发明人： Kouji Ohbayashi , Kazuaki Okada , Taro Matsukawa , Yutaka Eto , Koki Mizuno , Kazumichi Tsukuda
摘要： A method of manufacturing a sheave member for a belt-type continuously variable transmission includes a forming step wherein an intermediate product having a sheave surface is formed by forging a steel material; a carburization step wherein the intermediate product is heated in a carburization gas; a gradual cooling step wherein the cooling speed is equal to or less than 20° C./sec, at least until the temperature of the intermediate product has passed through the transformation point; a high-frequency electrical heating step wherein a selected portion(s) of the intermediate product is heated; a water quenching step wherein the selected portion is quenched by contact with water; and a finishing step wherein a grinding process is applied to the intermediate product to attain the final shape. In the cooling step, preferably, the intermediate product is contacted with a cooling gas at a pressure lower than atmospheric pressure.
摘要翻译： 一种制造带式无级变速器的滑轮构件的方法包括：形成步骤，其中通过锻造钢材形成具有滑轮表面的中间产品; 渗碳步骤，其中所述中间产物在渗碳气中加热; 至少直到中间产品的温度通过相变点为止，其中冷却速度等于或小于20℃/秒的逐渐冷却步骤; 高频电加热步骤，其中加热所述中间产物的选定部分; 水淬步骤，其中所选择的部分通过与水接触来淬火; 以及精加工步骤，其中将研磨工艺施加到中间产品以获得最终形状。 在冷却步骤中，优选地，中间产物在低于大气压的压力下与冷却气体接触。
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公开(公告)号：US20080247901A1
公开(公告)日：2008-10-09
申请号：US12078898
申请日：2008-04-08
申请人： Toshiyuki Morita , Kouji Ohbayashi , Masaki Kuwabara , Taro Matsukawa , Yutaka Eto , Kohki Mizuno
发明人： Toshiyuki Morita , Kouji Ohbayashi , Masaki Kuwabara , Taro Matsukawa , Yutaka Eto , Kohki Mizuno
摘要： The present invention relates to a mechanical part, which is obtained by: processing a steel into a shape of a part, the steel having an alloy composition containing, by weight percent, C: 0.10 to 0.30%, Si: 0.50 to 3.00%, Mn: 0.30 to 3.00%, P: 0.030% or less, S: 0.030% or less, Cu: 0.01 to 1.00%, Ni: 0.01 to 3.00%, Cr: 0.20 to 1.00%, Al: 0.20% or less, N: 0.05% or less, and the remainder of Fe and inevitable impurities, and the alloy composition satisfying the following condition: [Si %]+[Ni %]+[Cu %]−[Cr %]>0.50, in which [Si %], [Ni %], [Cu %] and [Cr %] represent the concentration of Si, the concentration of Ni, the concentration of Cu and the concentration of Cr in the alloy composition, respectively; subjecting the steel to a carburizing treatment in a vacuum, followed by gradually cooling the steel; and subsequently subjecting the steel to a high-frequency hardening to thereby harden a surface of the steel.
摘要翻译： 本发明涉及一种机械部件，其通过以下步骤获得：将钢加工成部件的形状，所述钢具有合金组成，所述合金组合物以重量百分比含有C：0.10至0.30％，Si：0.50至3.00％， Mn：0.30〜3.00％，P：0.030％以下，S：0.030％以下，Cu：0.01〜1.00％，Ni：0.01〜3.00％，Cr：0.20〜1.00％，Al：0.20％以下，N ：0.05％以下，余量为Fe和不可避免的杂质，合金组成满足下列条件：＆lt;＆lt;直线公式描述=“在线公式”end =“lead”？> [Si％] + [Ni％] + [Cu％] - [Cr％]> 0.50，<？在线公式描述=“In-line formula”end =“tail”？>其中[Si％]，[Ni％ ]，[Cu％]和[Cr％]分别表示合金组成中Si的浓度，Ni的浓度，Cu的浓度和Cr的浓度; 在真空中对钢进行渗碳处理，然后逐渐冷却钢; 然后对钢进行高频硬化，使钢的表面硬化。
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4.发明申请公开(公告)号：US20080099107A1
公开(公告)日：2008-05-01
申请号：US11976646
申请日：2007-10-26
申请人： Kouji Ohbayashi , Kazuaki Okada , Taro Matsukawa , Yutaka Eto , Koki Mizuno , Kazumichi Tsukuda
发明人： Kouji Ohbayashi , Kazuaki Okada , Taro Matsukawa , Yutaka Eto , Koki Mizuno , Kazumichi Tsukuda
摘要： A method of manufacturing a sheave member for a belt-type continuously variable transmission includes a forming step wherein an intermediate product having a sheave surface is formed by forging a steel material; a carburization step wherein the intermediate product is heated in a carburization gas; a gradual cooling step wherein the cooling speed is equal to or less than 20° C./sec, at least until the temperature of the intermediate product has passed through the transformation point; a high-frequency electrical heating step wherein a selected portion(s) of the intermediate product is heated; a water quenching step wherein the selected portion is quenched by contact with water; and a finishing step wherein a grinding process is applied to the intermediate product to attain the final shape. In the cooling step, preferably, the intermediate product is contacted with a cooling gas at a pressure lower than atmospheric pressure.
摘要翻译： 一种制造带式无级变速器的滑轮构件的方法包括：形成步骤，其中通过锻造钢材形成具有滑轮表面的中间产品; 渗碳步骤，其中所述中间产物在渗碳气中加热; 至少直到中间产品的温度通过相变点为止，其中冷却速度等于或小于20℃/秒的逐渐冷却步骤; 高频电加热步骤，其中加热所述中间产物的选定部分; 水淬步骤，其中所选择的部分通过与水接触来淬火; 以及精加工步骤，其中将研磨工艺施加到中间产品以获得最终形状。 在冷却步骤中，优选地，中间产物在低于大气压的压力下与冷却气体接触。
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