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公开(公告)号：US5613634A
公开(公告)日：1997-03-25
申请号：US328188
申请日：1994-10-24
申请人： Luciano Veronesi , Ian L. W. Wilson
发明人： Luciano Veronesi , Ian L. W. Wilson
IPC分类号： G05D23/02
CPC分类号： G05D23/026
摘要： A passively temperature actuated valve has a shape memory alloy (SMA) mechanism connected to a lever arm which engages the valve stem to actuate the valve against the biasing force of a valve stem biasing spring when the ambient temperature rises above the transition temperature of the SMA. The SMA mechanism can include an SMA rod, but preferably has a tube of shape memory alloy supported in couplings which allow ambient fluid to freely pass through the tube. A stack of Bellville springs concentrically mounted over the tube biases the tribe to the elongated condition when below the transition temperature. An optional latch latches the valve in the actuated position if it is required that the valve remain actuated when the ambient temperature falls below the transition temperature and the Bellville springs again elongate the SMA member.
摘要翻译： 被动温度致动阀具有连接到杠杆臂的形状记忆合金（SMA）机构，其接合阀杆以克服阀杆偏置弹簧的偏置力来致动阀，当环境温度升高到高于SMA的转变温度 。 SMA机构可以包括SMA棒，但是优选地具有支撑在耦合中的形状记忆合金管，其允许环境流体自由地通过管。 同时安装在管上方的一堆贝尔维尔弹簧在部分转变温度以下时会将部落偏移到细长状态。 如果要求当环境温度低于转换温度时阀门保持启动，而Bellville弹簧再次拉伸SMA部件，则可选的闩锁将阀门锁定在致动位置。
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公开(公告)号：US4790723A
公开(公告)日：1988-12-13
申请号：US2537
申请日：1987-01-12
CPC分类号： C04B37/008 , F01D5/3084 , F01D5/3092 , C04B2237/34 , C04B2237/64 , C04B2237/76
摘要： A process provides a method for attaching a turbine blade to a blade support such as a rotor or rotor disc of a turbine. The root portion of the blade is formed to a shape approximately that of a groove in the surface of the rotor or rotor disc and the root portion of the blade is inserted within the groove. A composition comprising a particulate compound selected from the group consisting of a ceramic, graphite metal, metal alloy and mixtures thereof is positioned between the root portion of the blade and steeples, located one on either side of the groove.
摘要翻译： 一种方法提供了一种用于将涡轮机叶片附接到诸如涡轮机的转子或转子盘的叶片支撑件的方法。 叶片的根部形成为近似于转子或转子盘的表面中的槽的形状，并且叶片的根部插入槽内。 包含选自陶瓷，石墨金属，金属合金及其混合物的颗粒化合物的组合物位于叶片的根部和位于槽的任一侧上的尖塔之间。
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公开(公告)号：US4942059A
公开(公告)日：1990-07-17
申请号：US250659
申请日：1988-09-29
申请人： Ian L. W. Wilson
发明人： Ian L. W. Wilson
CPC分类号： C23C4/02 , B23K35/32 , C23C16/34 , C23C4/12 , Y10T428/12819
摘要： The present invention provides a method for applying a hardface alloy coating on a metal substrate concurrently with a nitriding procedure so that the hardface coating is deposited and nitrided in one step. The deposition of the metal hardface coating is conducted in an atmosphere of nitrogen under nitriding conditions. The single step of metal deposition and nitriding is made possible by using a hardface alloy composition containing 20-75% niobium, 5-35% titanium and 10-60% tungsten.
摘要翻译： 本发明提供了一种与氮化方法同时在金属基材上施加硬质合金涂层的方法，使得在一个步骤中沉积并氮化了表面涂层。 金属表面涂层的沉积在氮气氛下在氮化条件下进行。 通过使用含有20-75％铌，5-35％钛和10-60％钨的硬质合金组合物，可以实现金属沉积和氮化的一个步骤。
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公开(公告)号：US6164886A
公开(公告)日：2000-12-26
申请号：US382021
申请日：1999-08-24
CPC分类号： F16B39/105 , G21C5/10 , Y02E30/40 , Y10S411/972
摘要： A high strength bolt fastens a baffle plate and a former plate of a pressurized water nuclear reactor pressure vessel together. The bolt has a head portion and an integral locking member extending from the head portion for engaging one of the structural members to lock the bolt with the structural member. The integral locking member portion has a lower yield stress than the yield stress of the shank. A lower yield stress may be obtained by selective annealing. The locking member is less susceptible to stress corrosion cracking in high temperature, high pressure water of commercial nuclear power reactors.
摘要翻译： 高强度螺栓将压力水核反应堆压力容器的挡板和前板固定在一起。 螺栓具有头部和从头部延伸的一体的锁定构件，用于与结构构件中的一个接合以将螺栓与结构构件锁定。 一体的锁定构件部分具有比柄的屈服应力低的屈服应力。 通过选择性退火可以获得较低的屈服应力。 商业核反应堆的高温，高压水中的锁定构件较不易受应力腐蚀开裂的影响。
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