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    • 3. 发明授权
    • Lead-based solders for high temperature applications
    • 用于高温应用的铅基焊料
    • US6059900A
    • 2000-05-09
    • US25638
    • 1998-02-18
    • Frank W. GayleJames A. Slattery
    • Frank W. GayleJames A. Slattery
    • B23K35/26C22C11/02C22C7/00
    • B23K35/268C22C11/02
    • A high lead solder exhibiting improved wettability to metal substrates, an advantageously controlled melting range, and excellent thermal fatigue properties. It comprises about 98-100% lead and a minor amount, typically about 0.0005-0.1 wt %, based on the total weight of the solder composition, of an alkali metal selected from the group consisting of Na, K, and Li. Additional embodiments additionally comprise an amount of a grain-size controlling additive, e.g., 0.001-0.5 wt % (based on the total weight of all the components in the solder composition) selected from the group consisting of Ce, Ba, La, Pr, Nd, Sm, Eu, Gd, Th, Dy, Ho, Er, Tm, Yb, Y, Lu, Sc, Mg, Na, Se, Te, oxides thereof and mixtures thereof, in amount effective to control the Pb grain size; and 0-1 wt % of an element selected from the group consisting of Sn, In, Bi, Sb, Ag, Au, and Ga, and mixtures thereof.
    • 表现出对金属基材的润湿性提高的高铅焊料,有利的受控熔融范围以及优异的热疲劳特性。 它包括约98-100%的铅和少量的,基于焊料组合物的总重量,通常约0.0005-0.1重量%的选自Na,K和Li的碱金属。 另外的实施方案另外包括一定量的粒度控制添加剂,例如0.001-0.5wt%(基于焊料组合物中所有组分的总重量),其选自Ce,Ba,La,Pr, Nd,Sm,Eu,Gd,Th,Dy,Ho,Er,Tm,Yb,Y,Lu,Sc,Mg,Na,Se,Te,其氧化物及其混合物, 和0-1重量%的选自Sn,In,Bi,Sb,Ag,Au和Ga的元素,以及它们的混合物。
    • 4. 发明授权
    • Amalgam dispensing device
    • 汞合金分配装置
    • US4139030A
    • 1979-02-13
    • US759816
    • 1977-01-17
    • Manfred F. SchroederJoseph G. BiondoJoseph Aliotta
    • Manfred F. SchroederJoseph G. BiondoJoseph Aliotta
    • C22C7/00A61C5/06B65B1/30
    • A61C5/068
    • A device for dispensing ingredients, such as the ingredients for a dental amalgam, has a handle portion and a head portion formed of mating parts with the handle angulated to the head and formed for convenient gripping by the user's hand. A slide mounted in the head slides laterally when pushed by the user's thumb to transport measured ingredients to a common aperture for delivery into a container. The container, when put in place, releases a latch that holds the slide normally in measuring position and prevents transport of the ingredients unless the container is in position to catch them.Adjustment of a measuring chamber for liquid mercury, to accurately proportion it, is by a valve having an end projecting, more or less, into a chamber, so as to vary the volume of the chamber. The position of the valve is controlled by a rectilinearly movable cam whose position may be fixed by a lock nut which normally is inaccessible in a recess in the head portion.
    • 用于分配诸如牙科汞合金成分的成分的装置具有手柄部分和头部部分,头部部分由配合部分形成,其中把手与头部成角度并形成以便于使用者的手抓握。 安装在头部的滑块在用户拇指推动时横向滑动,将测量的成分输送到共同的孔中以便输送到容器中。 容器在放置就绪时释放一个闩锁,其将滑块正常地保持在测量位置,并防止成分的运输,除非容器处于捕获状态。