Reduction of Water Transfer Across Membrane
    2.
    发明申请
    Reduction of Water Transfer Across Membrane 审中-公开
    降低膜间水分转移

    公开(公告)号:US20140057140A1

    公开(公告)日:2014-02-27

    申请号:US13593732

    申请日:2012-08-24

    IPC分类号: H01M2/38

    摘要: A method of operating a redox flow battery includes a step of observing a difference in relative volume between the anolyte fluid volume and the catholyte fluid volume. The ionic molality of anolyte fluid is increased if the relative volume of the anolyte fluid decreases. A redox flow battery having balanced anolyte and catholyte initial ionic molalities is also provided.

    摘要翻译: 操作氧化还原液流电池的方法包括观察阳极电解液体积和阴极液流体体积之间的相对体积差异的步骤。 如果阳极电解液的相对体积减小,阳极电解液的离子摩尔数增加。 还提供了具有平衡的阳极电解液和阴极电解液初始离子摩尔比的氧化还原液流电池。

    Method of making a cylinder head or other article with cast in-situ
ceramic tubes
    3.
    发明授权
    Method of making a cylinder head or other article with cast in-situ ceramic tubes 失效
    用铸造原位陶瓷管制造气缸盖或其他物品的方法

    公开(公告)号:US5251683A

    公开(公告)日:1993-10-12

    申请号:US667922

    申请日:1991-03-11

    申请人: Gerald P. Backer

    发明人: Gerald P. Backer

    IPC分类号: B22D19/00 F02F1/24

    CPC分类号: B22D19/0009 F02F1/24

    摘要: A method is disclosed for making an article, such as a cylinder head, having one or more hollow ceramic tubes, such as ceramic exhaust port liners, cast in-situ therein with reduced cracking or breakage of the ceramic tube from tensile and compressive stresses exerted on the ceramic tube during the casting process. The method involves forming a removable core in the ceramic tube of a core material having a thermal expansion coefficient not exceeding about 10 times that of the ceramic tube to minimize crack-causing differential thermal expansion-induced tensile stresses on the ceramic tube when molten metal is cast therearound, casting the molten metal about the cored ceramic tube in a mold cavity, stress relieving the cast article at an elevated temperature before the cast article cools to a lower temperature at which crack-causing differential thermal contraction-induced compressive stresses are exerted on the cast in-situ ceramic tube, and removing the core from the cast article.

    摘要翻译: 公开了一种用于制造具有一个或多个中空陶瓷管(例如陶瓷排气口衬套)的物品的方法,该中空陶瓷管例如陶瓷排气口衬里原位铸造,其中陶瓷管的破裂或断裂减少了拉伸和压缩应力 在铸造过程中在陶瓷管上。 该方法包括在具有不超过陶瓷管的10倍的热膨胀系数的芯材的陶瓷管中形成可移除的芯,以最小化当熔融金属为陶瓷管时陶瓷管上产生的裂纹引起的不同热膨胀引起的拉伸应力 将熔融金属铸造在模腔内的芯状陶瓷管周围,在铸造件冷却至较低温度之前在升高的温度下释放铸件,在较低温度下施加裂纹引起的不同热收缩诱导的压缩应力 铸造原位陶瓷管,并从铸造制品中去除芯。

    Method for optimizing casting conditions using permeable mold by
computer simulation
    4.
    发明授权
    Method for optimizing casting conditions using permeable mold by computer simulation 失效
    通过计算机模拟优化铸造条件的方法

    公开(公告)号:US5377119A

    公开(公告)日:1994-12-27

    申请号:US94863

    申请日:1993-07-22

    CPC分类号: G06F17/5018 G06F2217/41

    摘要: The conditions of casting with a permeable mold having a cavity and a runner can be optimized by a computer simulation method of (1) dividing the mold and a cavity thereof into a plurality of elements; (2) providing mold properties, a pressure and a velocity of a melt flowing into the runner as initial data with respect to each element; (3) performing computations in a step-wise manner to determine the movement of a free surface of the melt and a rate of gas flowing through the mold until the cavity is filled with the melt; (4) calculating a total volume of voids generated in the melt; (5) examining whether or not the total volume of voids is substantially zero; and (6) if the total volume of voids is not substantially zero, repeating the computations with at least one of the initial data modified until the total volume of voids becomes substantially zero.

    摘要翻译: 可以通过(1)将模具和其空腔分成多个元件的计算机模拟方法来优化具有空腔和流道的可渗透模具的浇铸条件; (2)提供模具性能,流入流道的熔体的压力和速度,作为关于每个元件的初始数据; (3)以分步方式执行计算,以确定熔体的自由表面的运动和流过模具的气体的速率,直到空腔充满熔体; (4)计算在熔体中产生的空隙的总体积; (5)检查空隙的总体积是否基本为零; 和(6)如果空隙的总体积基本上不为零,则用至少一个修改的初始数据重复计算,直到空隙的总体积基本上为零为止。