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公开(公告)号：US20110008199A1
公开(公告)日：2011-01-13
申请号：US12745305
申请日：2008-12-19
CPC分类号： F27B17/00 , B22F3/003 , B22F3/1028 , B22F2005/001 , B22F2203/11 , B22F2999/00 , F27B5/14 , F27D21/0014
摘要： The present invention relates to a method of making cutting tools comprising a substrate having a hard phase and a binder phase, the method comprising forming green powder compacts using powder metallurgical techniques, charging the green powder compacts, placed on one or several trays, in a furnace and sintering the green powder compacts wherein the furnace comprises an insulation package, at least three individually controlled heating elements located inside the insulation package including a vertical heating element, an upper horizontal heating element arranged in an upper part of the furnace, and a lower horizontal heating element arranged in a lower part of the furnace, wherein operating the at least three heating elements such that an average controlled cooling rate from a sintering temperature down to at least a solidification temperature of the binder phase is 0.1-4.0° C./min, and a sintering furnace operable to obtain a controlled cooling rate.
摘要翻译： 本发明涉及一种制造切削工具的方法，该切削工具包括具有硬质相和粘结相的基底，该方法包括使用粉末冶金技术形成绿色粉末压块，将放置在一个或多个塔板上的绿色粉末压块 炉和烧结其中炉子包括绝缘包装的至少三个单独控制的加热元件，其中包括垂直加热元件的绝缘包装内的至少三个独立控制的加热元件，和布置在炉子的上部的上部水平加热元件 布置在炉子的下部的水平加热元件，其中操作至少三个加热元件，使得从烧结温度降至至少粘合相的固化温度的平均控制冷却速率为0.1-4.0℃/ min，以及可操作以获得受控冷却速率的烧结炉。
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公开(公告)号：US08889063B2
公开(公告)日：2014-11-18
申请号：US12745305
申请日：2008-12-19
CPC分类号： F27B17/00 , B22F3/003 , B22F3/1028 , B22F2005/001 , B22F2203/11 , B22F2999/00 , F27B5/14 , F27D21/0014
摘要： The present invention relates to a method of making cutting tools comprising a substrate having a hard phase and a binder phase, the method comprising forming green powder compacts using powder metallurgical techniques, charging the green powder compacts, placed on one or several trays, in a furnace and sintering the green powder compacts wherein the furnace comprises an insulation package, at least three individually controlled heating elements located inside the insulation package including a vertical heating element, an upper horizontal heating element arranged in an upper part of the furnace, and a lower horizontal heating element arranged in a lower part of the furnace, wherein operating the at least three heating elements such that an average controlled cooling rate from a sintering temperature down to at least a solidification temperature of the binder phase is 0.1-4.0° C./min, and a sintering furnace operable to obtain a controlled cooling rate.
摘要翻译： 本发明涉及一种制造切削工具的方法，该切削工具包括具有硬质相和粘结相的基底，该方法包括使用粉末冶金技术形成绿色粉末压块，将放置在一个或多个塔板上的绿色粉末压块 炉和烧结其中炉子包括绝缘包装的至少三个单独控制的加热元件，其中包括垂直加热元件的绝缘包装内的至少三个独立控制的加热元件，和布置在炉子的上部的上部水平加热元件 布置在炉子的下部的水平加热元件，其中操作至少三个加热元件，使得从烧结温度降至至少粘合相的固化温度的平均控制冷却速率为0.1-4.0℃/ min，以及可操作以获得受控冷却速率的烧结炉。
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