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公开(公告)号：US10465268B2
公开(公告)日：2019-11-05
申请号：US15510883
申请日：2015-09-15
申请人： HÖGANÄS AB (PUBL)
发明人： Ola Bergman
摘要： The present invention provides a low cost pre-alloyed iron based powder which has high compressibility, capable of rendering a compacted and sintered component high green density, (GD), and high sintered density, (SD). Also, a method or process for producing components, especially gears, including compaction of powder mixture containing the pre-alloyed iron-based powder, sintering of the compacted component, Low Pressure carburizing, (LPC), High Pressure Gas Quenching, (HPGQ), and tempering, is provided. In one embodiment, the process includes high temperature sintering. Other aspects of the present invention include a powder mixture containing the pre-alloyed iron based powder and components produced by the new process from the powder mixture. Such carburized components exhibit a hard surface combined with a softer and tougher core, necessary properties for e.g. automotive gears subjected to harsh environment.
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公开(公告)号：US20150093280A1
公开(公告)日：2015-04-02
申请号：US14370704
申请日：2013-01-03
申请人： HÖGANÄS AB (PUBL)
发明人： Christophe Szabo , Senad Dizdar , Ola Bergman
摘要： A material which can be used to manufacture components which exhibit high strength and high wear resistance, at the same time possessing reasonable ductility. The material also has cost advantages compared to other potential metal powder solutions. An iron based powder composition which achieves desired microstructure/properties and associated sliding wear resistance with reduced content of expensive alloying ingredients such as admixed elemental Ni and Copper.
摘要翻译： 可用于制造具有高强度和高耐磨性的组分的材料，同时具有合理的延展性。 与其他潜在的金属粉末溶液相比，该材料也具有成本优势。 一种铁基粉末组合物，其通过降低昂贵的合金成分（例如混合的元素Ni和铜）的含量来实现期望的微结构/性质和相关的滑动耐磨性。
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公开(公告)号：US11554416B2
公开(公告)日：2023-01-17
申请号：US17350286
申请日：2021-06-17
申请人： HÖGANÄS AB (PUBL)
发明人： Sven Allroth , Ola Bergman
IPC分类号： B22F3/23 , C22C38/00 , C22C38/04 , C22C38/34 , C22C38/40 , C22C38/60 , C22C33/02 , B22F1/00 , B22F3/16 , B22F3/24 , B22F9/04 , B22F3/10 , B22F1/10 , B22F3/22
摘要： A method of making sintered components made from an iron-based powder composition and the sintered component per se. The method is especially suited for producing components which will be subjected to wear at elevated temperatures, consequently the components consists of a heat resistant stainless steel with hard phases including chromium carbo-nitrides. Examples of such components are parts in turbochargers for internal combustion engines.
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公开(公告)号：US11179778B2
公开(公告)日：2021-11-23
申请号：US15105461
申请日：2014-12-15
申请人： HÖGANÄS AB (PUBL)
发明人： Sven Allroth , Ola Bergman
IPC分类号： B22F3/23 , C22C38/34 , C22C38/04 , B22F9/04 , B22F1/00 , B22F3/16 , B22F3/24 , C22C38/40 , C22C38/00 , C22C38/60 , C22C33/02 , B22F3/10 , B22F3/22
摘要： The present invention concerns a method of making sintered components made from an iron-based powder composition and the sintered component per se. The method is especially suited for producing components which will be subjected to wear at elevated temperatures, consequently the components consists of a heat resistant stainless steel with hard phases including chromium carbo-nitrides. Examples of such components are parts in turbochargers for internal combustion engines.
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公开(公告)号：US10702924B2
公开(公告)日：2020-07-07
申请号：US14370704
申请日：2013-01-03
申请人： HÖGANÄS AB (PUBL)
发明人： Christophe Szabo , Senad Dizdar , Ola Bergman
摘要： A material which can be used to manufacture components which exhibit high strength and high wear resistance, at the same time possessing reasonable ductility. The material also has cost advantages compared to other potential metal powder solutions. An iron based powder composition which achieves desired microstructure/properties and associated sliding wear resistance with reduced content of expensive alloying ingredients such as admixed elemental Ni and Copper.
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