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    • 2. 发明申请
    • NITROGEN-CONTAINING MARTENSITIC STAINLESS STEEL ALLOY
    • 含氮不锈钢不锈钢合金
    • WO2007011466A1
    • 2007-01-25
    • PCT/US2006/021925
    • 2006-06-06
    • BRUNSWICK CORPORATIONANDERSON, Kevin, R.DONAHUE, Raymond, J.BAUER, Richard, S.KOEPSEL, Roger, E.DE WITT, David, M.
    • ANDERSON, Kevin, R.DONAHUE, Raymond, J.BAUER, Richard, S.KOEPSEL, Roger, E.DE WITT, David, M.
    • C22C38/44C22C38/00
    • C22C38/40C22C38/001C22C38/02
    • The nitrogen containing martensitic stainless steel alloy as cast having high strength and high cycle fatigue as well as good castability and capability of being heat treated, the alloy consisting essentially of, in weight percent, 12.0 - 16.0% chromium, 1.10 - 2.00% by weight silicon, 3.00 - 4.5% by weight nickel, 3.5% by weight maximum copper, 0.065% by weight maximum carbon, 1.00% by weight maximum manganese, 0.11 - 0.20% by weight nitrogen, and the balance iron. The alloy might further include 0.20% by weight maximum molybdenum, 0.03% by weight maximum phosphorus, 0.10% maximum by weight columbium, 0.25% maximum by weight cobalt, 0.005% by weight maximum sulfur, 0.05% by weight maximum tantalum, 0.05% by weight maximum aluminum, 0.20% by weight maximum vanadium, and 0.20% by weight maximum tungsten. The alloy of the present disclosure has a UTS of about 146 ksi, a YTS of about 129 ksi and a hardness of about 39 Rockwell C hardness. The alloy has particular utility in the production of propellers and steering arms for boat motors.
    • 具有高强度和高循环疲劳的铸态的含氮马氏体不锈钢合金以及良好的浇铸性和热处理能力,该合金基本上由重量百分比计为12.0-16.0%的铬,1.10-2.00%的重量 硅,3.00-4.5重量%的镍,3.5重量%的最大铜,0.065重量%的最大碳,1.00重量%的最大锰,0.11-0.20重量%的氮和余量的铁。 该合金可以进一步包括0.20重量%的最大钼,0.03重量%的最大磷,0.10重量%的最大重量铌,0.25重量%的钴,0.005重量%的最大硫,0.05重量%的最大钽,0.05重量% 重量最大铝,0.20重量%最大钒和0.20重量%最大钨。 本公开的合金的UTS为约146ksi,YTS为约129ksi,硬度为约39洛氏硬度。 该合金在生产用于船用电机的螺旋桨和转向臂方面具有特殊的用途。
    • 3. 发明申请
    • METHOD OF PRODUCING TITANIUM
    • 生产钛的方法
    • WO1990004043A2
    • 1990-04-19
    • PCT/US1989004614
    • 1989-10-13
    • BRUNSWICK CORPORATION
    • BRUNSWICK CORPORATIONDONAHUE, Raymond, J.HESTERBERG, William, G.CLEARY, Terrance, M.
    • C22B34/12
    • C22B34/1263C22B4/005C22B9/226
    • A quantity of titanium (5) is heated in a crucible (1) to provide a melt (5), and a layer of slag (7), containing an ionizable titanium compound, such as titanium dioxide, along with ionizable slag constituents, is disposed on the top of the melt (5). The slag (7) is then heated to a molten state by direct current plasma arc heating with the melt (5) being anodic. After the slag (7) is molten, the polarity of the plasma arc heating is reversed so that the melt (5) is cathodic, causing the slag (7) to act as an electron transfer layer so that the titanium dioxide of the slag (7) is reduced to titanium and any dissolved oxygen in the melt (5) is converted to an ionic species of oxygen at the interface between the slag (7) and the melt (5). The resulting liquid titanium is combined with the melt (5), while the ionic species of oxygen is carried upwardly through the slag (7) and released from the slag layer (7) by an oxidation process. Additional quantities of titanium dioxide can be added to the slag (7) to continually convert the titanium dioxide to titanium under the reverse polarity plasma arc heating.
    • 在坩埚(1)中加热一定量的钛(5)以产生熔体(5),并且含有可电离的钛化合物的熔渣层(7),例如 比二氧化钛,与其他可电离的炉渣组分结合。 然后通过DC等离子弧将炉渣(7)加热至熔融状态,熔体(5)为阳极。 当炉渣(7)处于熔化状态时,等离子弧的极性反向,使得熔体(5)是阴极的,炉渣(7)则表现为 电子转移,从而将炉渣(7)中的氧化钛还原成钛,并将熔体(5)中的溶解氧转化为界面处的离子氧物质 在炉渣(7)和熔体(5)之间。 得到的液态钛与熔体(5)结合,而氧离子物质通过处理方法向上输送通过熔渣(7)并从熔渣层(7)释放。 氧化。 可以向炉渣(7)中加入额外量的二氧化钛,以便通过反向极性等离子体电弧加热方法连续地将二氧化钛转化为钛。
    • 5. 发明申请
    • EVAPORABLE FOAM CASTING SYSTEM UTILIZING A HYPEREUTECTIC ALUMINUM SILICON ALLOY
    • 使用超级铝硅合金的可蒸发泡沫体系
    • WO1989002326A1
    • 1989-03-23
    • PCT/US1988002864
    • 1988-08-19
    • BRUNSWICK CORPORATION
    • BRUNSWICK CORPORATIONHESTERBERG, William, G.DONAHUE, Raymond, J.CLEARY, Terrance, M.
    • B22D21/04
    • B22D21/007B22C9/046
    • A method of casting utilizing an evaporable foam system with a hypereutectic aluminum silicon alloy. The alloy is composed by weight of 16 % to 19 % silicon, 0.4 % to 0.7 % magnesium, up to 1.4 % iron, up to 0.3 % manganese, up to 0.37 % copper and the balance aluminum. The molten alloy is introduced into a mold in contact with an evaporable foam pattern formed of polystyrene, or the like. The heat of the molten alloy will decompose and vaporize the pattern and the vapor will enter the interstices of the surrounding sand, while the molten alloy will fill the void caused by the vaporization of the pattern. The heat of crystallization caused by precipitation of the silicon on solidifaction of the alloy will temporarily slow the solidification rate of the alloy, thus increasing the time for elimination of pattern residue vapors from the molten alloy.
    • 一种使用具有过共晶铝硅合金的可蒸发泡沫体系的铸造方法。 该合金由16%至19%的硅,0.4%至0.7%的镁,至多1.4%的铁,至多0.3%的锰,至多0.37%的铜和余量的铝组成。 将熔融合金引入与由聚苯乙烯等形成的可蒸发泡沫图案接触的模具中。 熔融合金的热量将分解和汽化图案,并且蒸汽将进入周围砂的空隙,而熔融合金将填充由图案蒸发引起的空隙。 由于硅沉淀引起的结晶热会导致合金的固化速度暂时降低,从而增加了从熔融合金中去除图案残留蒸气的时间。