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    • 5. 发明专利
    • Method for forming non-magnetic region of steel material, and steel material having non-magnetic region formed thereon
    • 形成钢材非磁性区域的方法及其形成非磁性区域的钢材
    • JP2009062591A
    • 2009-03-26
    • JP2007232600
    • 2007-09-07
    • Toyota Central R&D Labs IncToyota Motor Corpトヨタ自動車株式会社株式会社豊田中央研究所
    • TSUNODA KEISUKEMITSUHAYASHI MASAHIKOSAWADA TAKUMITAKAMIYA HIROYUKITANAKA KOJI
    • C22C33/04C22C22/00C22C38/00
    • PROBLEM TO BE SOLVED: To form a non-magnetic phase having more uniform thickness in a prescribed region of a steel material in a method for forming a non-magnetic region of a steel material. SOLUTION: The method for forming a non-magnetic region of a steel material 10, wherein the non-magnetic region is formed in the prescribed region of the steel material 10, comprises the following steps: an alloy material placing step (S10) where an alloy material 12, containing an austenite phase forming element and capable of being melted and alloyed with Fe at a temperature lower than the melting point of Fe, is placed in the prescribed region of the steel material 10; a pressing plate placing step (S12) where a pressing plate 20 is placed on the alloy material 12; and a melting and alloying step (S14) where the steel material 10 on which the alloy material 12 is placed is heated at a temperature equal to or higher than the melting point of the alloy material 12 and lower than the melting point of Fe and enough to form an austenite phase to melt and alloy the alloy material 12 and Fe. In the melting and alloying step (S14), the resulting molten metal 22 is pressed by the pressing plate 20. COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:在钢材的非磁性区域的形成方法中,在钢材的规定区域中形成具有更均匀厚度的非磁性相。 解决方案:用于形成钢材10的非磁性区域的方法,其中在钢材10的规定区域中形成非磁性区域包括以下步骤:合金材料放置步骤(S10 ),其中含有奥氏体相形成元素并能够在低于Fe的熔点的温度下与Fe熔融并合金化的合金材料12放置在钢材10的规定区域中; 压板放置步骤(S12),其中压板20放置在合金材料12上; 和熔融合金化步骤(S14),其中放置有合金材料12的钢材10在等于或高于合金材料12的熔点并低于Fe的熔点的温度下加热并且足够 以形成奥氏体相以熔化和合金合金材料12和Fe。 在熔融和合金化步骤(S14)中,所得到的熔融金属22被压板20压制。版权所有(C)2009,JPO&INPIT
    • 10. 发明专利
    • Method for sintering titanium-based powder compact
    • 烧结钛酸钡粉末的方法
    • JP2006104559A
    • 2006-04-20
    • JP2004296274
    • 2004-10-08
    • Toyota Central Res & Dev Lab Inc株式会社豊田中央研究所
    • TAKAMIYA HIROYUKIKONDO MIKIO
    • B22F3/10C22C14/00
    • PROBLEM TO BE SOLVED: To provide a method for sintering a titanium-based powder compact capable of producing a titanium-based sintered compact having reduced contamination caused by oxygen or the like even in an inert gas atmosphere and having satisfactory mechanical properties.
      SOLUTION: A titanium-based powder compact 1 compacted from raw material powder essentially consisting of titanium is sintered by a heating furnace using a graphite heater in an inert gas atmosphere under the pressure of atmospheric pressure or higher, under an oxygen concentration of ≤50 ppm, and under a CO concentration of ≤100 ppm. At this time, the titanium-based powder compact 1 is supported by a supporting member 2 and is installed inside a case 3 made of graphite. The supporting member 2 is composed of a base part 20 and a reaction control part 21 comprising at least either Y
      2 O
      3 or ZrO
      2 , and comes into contact with the titanium-based powder compact 1 via the reaction control part 21. Further, a sintering promotion member 5 made of titanium for forming a sintering promotion atmosphere is arranged around the titanium-based powder compact 1.
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 解决问题的方法:提供一种即使在惰性气体气氛中也能够制造具有由氧等引起的污染减少并具有令人满意的机械性能的钛基烧结体的钛基粉末成形体的烧结方法。 解决方案:由基本上由钛组成的原料粉末压实的钛基粉末成形体1在大气压或更高压力的惰性气体气氛中使用石墨加热器的加热炉在氧气浓度为 ≤50ppm,CO浓度≤100ppm时。 此时,钛基粉末压块1由支撑构件2支撑并安装在由石墨制成的壳体3内。 支撑构件2由基部20和包括至少Y 2 SB 3 O 3 / SB 3或ZrO 2 SB 2的反应控制部21组成, 并且经由反应控制部21与钛基粉末压块1接触。此外,在钛基粉末成形体1的周围配置有由用于形成烧结促进气氛的钛制成的烧结促进部件5。 (C)2006,JPO&NCIPI