公开(公告)号：US4165882A

公开(公告)日：1979-08-28

申请号：US870723

申请日：1978-01-19

申请人： Harold E. Crow

发明人： Harold E. Crow

IPC分类号： E02B7/54 ,  F16J15/32

CPC分类号： F16J15/32 ,  E02B7/54

摘要： An improved sealing means for use with a slide gate which is slidably mounted for opening and closing movement relative to a seat forming frame defining a fluid flow orifice. The sealing means comprises a resilient sealing member adapted to be received in a groove in the frame, the groove having an outer compartment in which the body of the sealing member is sealed and an inner compartment underlying the outer compartment, the sealing member having an outwardly projecting contoured face adapted to be contacted and displaced laterally inwardly by the gate as it is closed, the lateral displacement of the face of the sealing member causing a rear portion of its body to be displaced into the inner compartment of the groove, thereby accommodating the sealing member to the slide and relieving forces acting to shear the sealing member.

摘要翻译： 一种用于滑动门的改进的密封装置，其可滑动地安装成用于相对于限定流体流动孔的座形成框架的打开和关闭运动。 密封装置包括适于容纳在框架中的凹槽中的弹性密封构件，凹槽具有密封构件的主体被密封的外部隔室和位于外部隔室下方的内部隔室，密封构件具有外部 突出的轮廓面适于在门被关闭时被横向向内接触和移位，密封构件的表面的横向位移导致其主体的后部移动到槽的内部隔室中，从而容纳 密封构件到滑块和用于剪切密封构件的释放力。

公开(公告)号：US4148946A

公开(公告)日：1979-04-10

申请号：US768033

申请日：1977-02-14

申请人： Fred Byrd ,  James A. Fisher

发明人： Fred Byrd ,  James A. Fisher

IPC分类号： C23C2/00 ,  C21D1/74 ,  C21D1/76 ,  C21D9/52 ,  C21D9/56 ,  C23C2/02 ,  C23C2/40 ,  F27B9/28 ,  C23C1/00

CPC分类号： C23C2/02

摘要： In a line for coating a ferrous base metal strip with a molten coating metal, the line being of the type having a preparation furnace for the strip comprising a direct fired furnace, a controlled atmosphere heating furnace, one or more cooling chambers and a snout leading beneath the surface of the molten coating metal bath, all in sealed relationship to each other, the improvement comprising a method and means for maintaining a non-oxidizing atmosphere at positive pressure within the entire preparation furnace during line stop. To this end, a retractable, refractory lined door means is provided in the conduit between the direct fired furnace and its exhaust fan to seal off the direct fired furnace from its exhaust fan and an air dilution opening in that conduit. Additionally, means are provided to add excess nitrogen flow to the preparation furnace to maintain a positive pressure therein. Thus, during a line stop, the refractory lined door will be shifted from its normal retracted position to its position sealing off the direct fired furnace and the means for adding excess nitrogen will be actuated to maintain a positive pressure within the entire strip preparation furnace of the metallic coating line.

摘要翻译： 在用熔融涂覆金属涂覆铁基金属带的线上，该线具有用于带材的准备炉的类型，其包括直接燃烧炉，受控气氛加热炉，一个或多个冷却室和喷嘴 在熔融涂覆金属浴的表面之下，所有这些都处于密封的关系中，改进包括在线停止期间在整个准备炉内保持正压力下的非氧化气氛的方法和装置。 为此，在直接燃烧炉和排气风扇之间的导管中设有一个可伸缩的耐火材料门装置，用于将直接燃烧的炉子从其排风扇和该导管中的空气稀释开口密封。 此外，提供了将额外的氮气流加入制备炉以在其中保持正压的装置。 因此，在线停止期间，耐火材料内衬门将从其正常缩回位置移动到其直接燃烧炉密封的位置，并且将致动用于添加过量氮气的装置，以在整个带钢制备炉内保持正压 金属涂层生产线。

公开(公告)号：US4146412A

公开(公告)日：1979-03-27

申请号：US910484

申请日：1978-05-30

申请人： William J. Schumacher ,  Harry Tanczyn

发明人： William J. Schumacher ,  Harry Tanczyn

IPC分类号： C22C38/00 ,  C22C38/58 ,  C22C38/02

CPC分类号： C22C38/58

摘要： An austenitic stainless steel which in wrought or cast, and annealed, condition exhibits excellent galling resistance, excellent stress corrosion resistance in chloride-containing environments, good resistance against intergranular corrosion, good high temperature oxidation resistance, and a high work hardening rate. The broad composition range is, in weight percent, about 13% to about 19% chromium, about 13% to about 19% nickel, 0.5% to about 4% manganese, 3.5% to about 7% silicon, up to about 0.15% carbon, less than 0.04% nitrogen, about 0.05% maximum phosphorus, about 0.05% maximum sulfur, and balance essentially iron except for incidental impurities. The steel can be readily worked with conventional equipment and has particular utility for applications in which moving metal-to-metal contact, corrosive attack and/or elevated temperature are encountered in combination. The steel can also be cast into articles of ultimate use, or utilized in power metallurgy techniques.

摘要翻译： 在锻造或铸造退火的条件下，奥氏体不锈钢表现出优异的耐磨损性，在含氯化物环境中具有优异的耐应力腐蚀性，良好的耐晶间腐蚀性，良好的高温抗氧化性和高加工硬化率。 宽的组成范围以重量百分比计，约13％至约19％的铬，约13％至约19％的镍，0.5％至约4％的锰，3.5％至约7％的硅，至多约0.15％的碳 ，氮少于0.04％，最大磷约0.05％，最大硫约0.05％，除偶然杂质外，余量基本为铁。 钢可以容易地与常规设备一起使用，并且特别适用于组合使用金属 - 金属接触，腐蚀性和/或高温的应用。 钢也可以铸造成最终用途的物品，或用于电力冶金技术。

公开(公告)号：US4140552A

公开(公告)日：1979-02-20

申请号：US753634

申请日：1976-12-23

申请人： Jerry L. Arnold ,  Frank C. Dunbar

发明人： Jerry L. Arnold ,  Frank C. Dunbar

IPC分类号： C21D1/76 ,  C21D9/46 ,  C21D9/52 ,  C23C2/02 ,  C23C2/38 ,  C23C2/40 ,  C23C11/08

CPC分类号： C21D9/561 ,  C21D9/52 ,  C23C2/02 ,  C23C2/38

摘要： A method of surface treatment of aluminum-killed and low alloy steel strip and sheet for fluxless hot dip metallic coating which comprises heating the steel in a furnace atmosphere containing the hot gaseous combustion products of air with a sulfur bearing gaseous fuel including 5 to 1600 grains of sulfur per 100 cubic feet of fuel wherein the atmosphere includes sulfur compounds and from about 6% free oxygen to about 7% by volume excess combustibles whereby to form a sulfur and oxygen rich film on the steel surfaces, passing the steel into a further heating section wherein it is brought to a maximum temperature of about 593.degree. to about 927.degree. C. in a reducing atmosphere containing at least 10% hydrogen by volume, passing the steel into a cooling section having an atmosphere containing at least 10% hydrogen and the balance nitrogen whereby to reduce the sulfur and oxygen rich film to a metallic iron surface, and cooling the steel approximately to the temperature of the molten coating metal bath. Coke oven gas may be used as the fuel for the furnace.

摘要翻译： 一种用于无金属热浸金属涂层的铝杀死和低合金钢带和片材的表面处理方法，其包括在包含5至1600个晶粒的含硫气体燃料的空气中含有热气态燃烧产物的炉气氛中对钢进行加热 的每100立方英尺燃料中的硫，其中气氛包括硫化合物和约6％游离氧至约7体积％的过量可燃物，从而在钢表面上形成硫和富氧膜，使钢进一步加热 其中在含有至少10体积％的氢气的还原气氛中使其达到约593℃至约927℃的最高温度，将钢经过含有至少10％氢的气氛的冷却段， 平衡氮气，从而将硫和富氧膜减少到金属铁表面，并将钢冷却至熔融涂层的温度 金属浴。 焦炉煤气可用作炉的燃料。

公开(公告)号：US4124412A

公开(公告)日：1978-11-07

申请号：US386158

申请日：1973-08-06

申请人： James A. Elias ,  Rollin E. Hook

发明人： James A. Elias ,  Rollin E. Hook

IPC分类号： C22C38/14 ,  C21D8/04 ,  C22C38/12 ,  C21D7/14

CPC分类号： C21D8/0426 ,  C22C38/12 ,  C21D8/0436 ,  C21D8/0473

摘要： A process of producing non-aging, low carbon steel having substantially no yield point elongation in the annealed condition and freedom from critical grain growth. A molten steel having an analysis typical of steel intended for rimmed or killed drawing steel is vacuum degassed to decarburize to a maximum carbon content of about 0.015%, and columbium (niobium) is added in an amount at least sufficient to combine with the carbon present in the steel. The cast material is hot rolled, finishing at 1500.degree. - 1700.degree. F (about 1090.degree. - 1200.degree. K) and coiled at a temperature of about 1500.degree. F (about 1090.degree. K) or less. The columbium addition retards the rate of recrystallization of the cold rolled product, and a wide spectrum of mechanical properties can be obtained in the final product by control of the final annealing time and temperature within the range of 1000.degree. to 1700.degree. F (about 810.degree. to 1200.degree. K). A preferred product is cold rolled and annealed strip suitable for deep drawing, porcelain enameling, hot dip metallic coating and the like, containing at least about 0.025% uncombined columbium at the hot rolling stage, as determined by analysis at room temperature, which has an average plastic strain ratio of at least 1.8, and a uniform grain size between ASTM 8 and 10.

公开(公告)号：US4123298A

公开(公告)日：1978-10-31

申请号：US759326

申请日：1977-01-14

申请人： Dale M. Kohler ,  Norris A. Dahlstrom ,  David W. Taylor

发明人： Dale M. Kohler ,  Norris A. Dahlstrom ,  David W. Taylor

IPC分类号： C21D8/12 ,  C21D9/52 ,  H01F1/147 ,  H01F1/04

CPC分类号： C21D9/52 ,  C21D8/1244 ,  H01F1/14775 ,  H01F1/14783

摘要： A high temperature continuous strip anneal is added to the routings for both high permeability cube-on-edge oriented silicon steel having a permeability at 796 A/m of more than about 1850 and regular cube-on-edge oriented silicon steel having a permeability at 796 A/m of less than about 1850. For both grades of cube-on-edge oriented silicon steel the high temperature anneal is performed after the decarburization step and before the final high temperature box anneal during which the final desired orientation and magnetic characteristics are achieved. The post decarburization anneal results in improvements in both permeability and core loss.

摘要翻译： 将高温连续条带退火加入到具有大于约1850的796A / m的渗透率的高磁导率立方角取向硅钢和具有常规的立方体边缘取向硅钢的路线上，其具有在 对于两种等离子体立方体取向硅钢，在脱碳步骤之后和最终的高温箱退火之前进行高温退火，其中最终期望的取向和磁特性为 实现了 后脱碳退火导致磁导率和磁芯损耗的改善。

公开(公告)号：US4089139A

公开(公告)日：1978-05-16

申请号：US717506

申请日：1976-08-24

申请人： Joseph Moffa ,  Jerald H. Boynton

发明人： Joseph Moffa ,  Jerald H. Boynton

IPC分类号： E02D29/12 ,  E02D29/14

CPC分类号： E02D29/124 ,  E02D29/12

摘要： A segmented cylindrical reinforced plastic manhole structure comprising a cylindrical body surmounted by a transition element. The transition element is adapted to support a conventional manhole cover and frame assembly and has an opening closable by the manhole cover. The manhole structure body comprises a plurality of curved, nestable segments of cast or molded reinforced plastic material. Each segment is provided with vertical side edges configured to provide an interlocking joint between it and an adjacent segment and the segments may be so sized as to require two, three or more segments to complete the circumference of the manhole structure body. Each segment is provided with horizontal top and bottom edges configured to provide an interlocking joint between it and an adjacent segment thereabove or therebelow so that the segments may be arranged in tiers to provide a manhole structure body of desired height. The transition element may also be cast or molded of reinforced plastic material and may be segmented or in the form of an integral one-piece structure. A cast reinforced concrete slab-like transition element may also be used. A base member may be provided for the manhole structure body, which base member may also be cast or molded of reinforced plastic material. The segments, transition element and the base member, if used, are joined together by an appropriate adhesive sealant to form fluid-tight joints therebetween.

摘要翻译： 一种分段圆柱形增强塑料人孔结构，包括由过渡元件所覆盖的圆柱体。 过渡元件适于支撑常规的人孔盖和框架组件，并具有可由人孔盖关闭的开口。 井孔结构体包括多个弯曲的可嵌套的铸造或模制的增强塑料材料段。 每个段设置有垂直侧边缘，所述垂直侧边缘构造成在其与相邻段之间提供互锁接头，并且所述段可以如此大小以便需要两个，三个或更多个段来完成人孔结构体的圆周。 每个段设置有水平顶部和底部边缘，该水平顶部和底部边缘被构造成在其之间提供在其上方或下方的相邻段之间的联锁接头，使得所述段可以被布置成层级以提供具有期望高度的人孔结构体。 过渡元件也可以由增强塑料材料铸造或模制，并且可以是分段的或整体的单件结构的形式。 还可以使用铸钢筋混凝土板状过渡元件。 可以为井孔结构体设置基座构件，该基座构件也可以由增强塑料材料铸造或模制。 段，过渡元件和基底构件（如果​​使用的话）通过适当的粘合剂密封剂连接在一起以在它们之间形成流体密封接头。

公开(公告)号：US4076182A

公开(公告)日：1978-02-28

申请号：US757786

申请日：1977-01-10

申请人： Harold W. Stites

发明人： Harold W. Stites

IPC分类号： B65H59/38 ,  B65H59/00

CPC分类号： B65H59/381

摘要： An improved hydraulically driven wire spooler for winding wire on spools at a uniform linear winding speed with means for manually adjusting base winding speed.

摘要翻译： 一种改进的液压驱动电线卷取机，用于以均匀的线性卷绕速度在线轴上缠绕线，用于手动调节基础卷绕速度。

公开(公告)号：US4046601A

公开(公告)日：1977-09-06

申请号：US691245

申请日：1976-06-01

申请人： Rollin E. Hook

发明人： Rollin E. Hook

IPC分类号： C23C8/80 ,  C21D1/48

CPC分类号： C23C8/80

摘要： A method for internal strengthening of articles formed from deep drawing quality low carbon steel strip or sheet containing about 0.02 to about 0.3% titanium in solution, up to about 0.3% columbium in solution, columbium when present being in an amount of at least 0.025% in solution, with the sum total of titanium and columbium in solution not exceeding about 0.3%, comprising the steps of heating the articles at a temperature of about 570.degree. to about 580.degree. C in a nitriding fluid for a time sufficient to form a total nitrogen concentration adjacent the surfaces of the articles at least substantially equal to the amount theoretically required to combine completely with the nitride-forming elements in the steel; and diffusion annealing the articles in a non-nitriding fluid at a temperature of about 595.degree. to about 815.degree. C for a time sufficient to complete through-thickness strengthening by reaction of the nitrogen with the nitride-forming elements. A preferred nitriding fluid is a fused cyanate salt bath.

公开(公告)号：US4040264A

公开(公告)日：1977-08-09

申请号：US635843

申请日：1975-11-28

申请人： Claude R. Neilon

发明人： Claude R. Neilon

IPC分类号： E21B17/01 ,  E21B7/12

CPC分类号： E21B17/012

摘要： An underwater riser system in which the primary riser is surrounded by lengths of jacket pipe which form annular buoyancy chambers, there being a pressure fluid supply connected to the buoyancy chambers via valve means including at least a pressure differential valve which controls the amount of water displaced from the chamber by the pressure fluid. Advantageously, the valve means for each chamber also includes remotely controlled means by which the amount of buoyancy provided by the chamber can be varied at will, e.g., from a positive buoyancy to a buoyancy less than the operating weight of the portion of the riser system with which that chamber is associated. In best embodiments, the lengths of jacket pipe are interconnected into a continuous structural unit by connectors each having a female connector member secured to the upper end of the lower length of jacket pipe and a male member secured to the lower end of the upper length of jacket pipe, the female member having an annular bulkhead which closes the space between the jacket and primary riser pipe and on which the valve means is mounted.

摘要翻译： 一种水下立管系统，其中主提升管被形成环形浮力室的套管的长度包围，通过阀装置连接到浮力室的压力流体供应装置包括至少一个控制排水量的压差阀 从室内受压力流体。 有利地，每个室的阀装置还包括远程控制的装置，通过该远程控制装置，腔室提供的浮力的量可以随意改变，例如，从正的浮力到浮力小于提升管系统的部分的操作重量 与该室相关联。 在最佳实施例中，护套管的长度通过连接器相互连接成连续的结构单元，连接器各自具有固定到护套管的较短长度的上端的阴连接器构件，以及固定到上长度的下端 护套管，阴构件具有环形隔板，其封闭护套和主提升管之间的空间，并且安装有阀装置。