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公开(公告)号：US4964209A
公开(公告)日：1990-10-23
申请号：US333647
申请日：1989-04-05
CPC分类号： B22F7/08 , B22F5/12 , B23D61/185 , B23D65/00 , B24D18/00 , B22F2005/001 , Y10T29/49989 , Y10T83/9292
摘要： A wire incrusted with abrasive grains characterized in that it is produced by preparing a cylindrical metallic body having a metallic rod inserted into the central part of a metallic part with a gap formed between the rod and the pipe, then filling the gap with mixed powder comprising metallic powder and abrasive grains having a Mohs hardness of 6 or more, and after that, applying hot working and cold working to the cylindrical metallic body before removing the above-mentioned outermost metallic pipe.
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公开(公告)号：US4866888A
公开(公告)日：1989-09-19
申请号：US39253
申请日：1987-04-17
CPC分类号： B22F7/08 , B22F5/12 , B23D61/185 , B23D65/00 , B24D18/00 , B22F2005/001 , Y10T29/49989 , Y10T83/9292
摘要： A wire incrusted with abrasive grains characterized in that it is produced by preparing a cylindrical metallic body having a metallic rod inserted into the central part of a metallic pipe with a gap formed between the rod and the pipe, then filling the gap with mixed powder comprising metallic powder and abrasive grains having a Mohs hardness of 6 or more, and after that, applying hot working and cold working to the cylindrical metallic body before removing the above-mentioned outermost metallic pipe.
摘要翻译： 一种具有磨粒的线，其特征在于，通过制备具有金属棒的圆柱形金属体制成，所述金属体插入到金属管的中心部分，该金属管在棒和管之间形成间隙，然后用包含 金属粉末和莫氏硬度为6以上的磨粒，然后在去除上述最外层的金属管之前对圆筒状金属体进行热加工和冷加工。
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公开(公告)号：US4689919A
公开(公告)日：1987-09-01
申请号：US726517
申请日：1985-04-24
申请人： Takao Kawakita , Ichiro Miyao
发明人： Takao Kawakita , Ichiro Miyao
CPC分类号： B28D1/121 , B23D65/00 , B23K31/025
摘要： Method for welding cutter-segments characterized by focusing an electron beam or a laser beam on the boundary between a carbon-steel core body (7) and segments (1). Each segment is formed by a Co (cobalt) powder compact, containing diamond or CBN grit, which has been sintered to nearly 100% apparent density. The boundary may or may not have Ni (nickel)-filler. In cases of bond materials other than Co, the segment (1) has a structure of double layers (4, 5), one layer of which is composed of a powder compact, containing diamond or CBN grit, which has been sintered to nearly 100% apparent density, and the other layer (5) of which is composed of a sintered Co powder compact without any grit. The carbon-steel core body (7) welded by the above-mentioned method is thereafter tempered at 350.degree.-450.degree. C. if necessary. A steel core having no slot at its periphery may be used as the core body.
摘要翻译： 用于焊接切割器段的方法，其特征在于将电子束或激光束聚焦在碳钢芯体（7）和段（1）之间的边界上。 每个段由具有金刚石或CBN砂粒的Co（钴）粉末压块形成，其已被烧结到几乎100％的表观密度。 边界可以具有或不具有Ni（镍）填料。 在Co以外的键合材料的情况下，片段（1）具有双层结构（4,5），其一层由包含金刚石或CBN砂粒的粉末压块构成，其已被烧结到接近100 ％表观密度，另一层（5）由没有任何砂粒的烧结的Co粉末压块组成。 然后，如果需要，通过上述方法焊接的碳钢芯体（7）在350〜-450℃下回火。 可以使用在其周边没有槽的钢芯作为芯体。
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公开(公告)号：US3982905A
公开(公告)日：1976-09-28
申请号：US429300
申请日：1973-12-28
CPC分类号： F01L3/02 , Y10T428/12153 , Y10T428/12479
摘要： This invention relates to a valve seat material for an internal combustion engine, which comprises a sintered ferrous alloy having the composition:______________________________________ chromium 5-15 percent by weight cobalt 5-20 nickel 2-8 tungsten 2-10 molybdenum 0.2-12 carbon 0.2-2 the remainder being iron except for usual impuri- -ties and trace elements, ______________________________________ And having a porosity of 5-25%. This alloy can also contain lead and a low melting point glass capable of showing a lubricating property at a low temperature.
摘要翻译： 本发明涉及一种用于内燃机的阀座材料，其包括具有以下成分的烧结铁合金：} 5-15重量％铬} 5-20}镍2-8}钨2-10}钼0.2 -12}碳0.2-2}剩余部分是除了通常的杂质和微量元素之外的铁，}并且具有5-25％的多孔性。 该合金还可以含有能够在低温下显示润滑性的铅和低熔点玻璃。
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公开(公告)号：US5247832A
公开(公告)日：1993-09-28
申请号：US836648
申请日：1992-02-14
申请人： Takayuki Umezawa , Takao Kawakita
发明人： Takayuki Umezawa , Takao Kawakita
IPC分类号： G01F23/22 , G01F23/296
CPC分类号： G01F23/22 , G01F23/2967
摘要： In a vibrator-type level sensor, a detection pipe (14) is provided projecting from a base unit (1) to be mounted to a wall of a container (8) containing a substance (100) to be detected. The detection pipe (14) has an internal vibration plate (12) attached with a vibrating piezo-electric device (16) thereon and the internal vibration plate (12) is mechanically connected through an end cap (13) to the free end of the detection pipe (14, 140) to form a folded cantilever unit (30) which responds when the end cap (13) or pipe (14) are contacted by the material being sensed in the container.
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公开(公告)号：US4456577A
公开(公告)日：1984-06-26
申请号：US376992
申请日：1982-05-11
申请人： Takao Kawakita , Kazuo Yamaguchi , Sadao Date
发明人： Takao Kawakita , Kazuo Yamaguchi , Sadao Date
CPC分类号： B22F3/26 , B22F7/06 , Y10T428/12083 , Y10T428/1209
摘要： A method of producing a rotary dresser include forming a core piece of an iron-base powder and filling in tungsten or like metal powder between the core and an outer mold member containing diamond grit or the like. The construction is then heated to melt and infiltrate a metal alloy, such that a network structure is formed about the powdered metal particles. In a further embodiment, the metal materials may be arranged in concentric form about a metal bushing such that the bushing is included in the final structure.
摘要翻译： 制造旋转修整器的方法包括在铁芯和包含金刚石砂粒等的外模具之间形成铁基粉末的芯片并填充钨或类似的金属粉末。 然后将该结构加热熔化并渗透金属合金，使得围绕粉末金属颗粒形成网状结构。 在另一个实施例中，金属材料可以围绕金属衬套以同心形式布置，使得衬套被包括在最终结构中。
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