Method and apparatus for cable conductor shield fault detection
    112.
    发明授权
    Method and apparatus for cable conductor shield fault detection 失效
    电缆导体屏蔽故障检测方法及装置

    公开(公告)号:US4387336A

    公开(公告)日:1983-06-07

    申请号:US120816

    申请日:1980-02-12

    CPC classification number: G01R31/022

    Abstract: Disclosed is an apparatus and method for continuously detecting skips, protrusions, protuberances and other defects in cable conductor shield, comprising a high voltage electrode, a capacitance bridge filter circuit and a corona discharge detector. A noncontacting coaxial electrode is employed to create an electric field between the cable conductor and the electrode. In the presence of this field, defects in the shield produce corona discharges. A detection circuit employing a capacitance bridge is employed to continuously detect corona discharges and produce signals used for subsequently locating the positions of the defects on the finished cable.

    Abstract translation: 公开了一种用于连续检测电缆导体屏蔽中的跳跃,突起,突起等缺陷的装置和方法,包括高压电极,电容桥式滤波器电路和电晕放电检测器。 使用非接触式同轴电极在电缆导体和电极之间产生电场。 在这个领域的存在下,屏蔽中的缺陷产生电晕放电。 使用采用电容桥的检测电路来连续地检测电晕放电并产生用于随后在成品电缆上定位缺陷的位置的信号。

    Technique for adding lead to steel
    113.
    发明授权
    Technique for adding lead to steel 失效
    添加铅钢的技术

    公开(公告)号:US4371395A

    公开(公告)日:1983-02-01

    申请号:US280717

    申请日:1981-07-06

    CPC classification number: C21C7/0006

    Abstract: A resulfurized ferrous alloy including lead characterized in that the lead is well dispersed in the steel matrix and the free lead globules are controlled as to size, is produced by introducing the lead into a steel melt in the form of a fine lead sulfide (PbS), or galena powder. The alloy produced exhibits improved machinability, which characteristic is further enhanced by the formation of manganese sulfide particles which are well distributed and have minimum aspect ratio (i.e., are round) when the melt has been deoxidized with manganese.

    Abstract translation: 包括铅的再硫化铁合金,其特征在于铅被良好地分散在钢基体中,游离铅球通过将铅引入到硫化铅(PbS)形式的钢熔体中而产生大小, ,或方铅矿粉末。 所生产的合金表现出改进的机械加工性,当熔融物已经用锰脱氧时,通过形成良好分布且具有最小纵横比(即圆形)的硫化锰颗粒进一步增强了该特性。

    Separative treatment of zinc-bearing flue dust
    114.
    发明授权
    Separative treatment of zinc-bearing flue dust 失效
    含锌烟尘的分离处理

    公开(公告)号:US4355009A

    公开(公告)日:1982-10-19

    申请号:US154345

    申请日:1980-05-29

    Abstract: A hydrometallurgical process is provided for separative treatment of zinc-bearing metallurgical flue dust containing significant amounts of lead, chlorine, and iron. The process is especially suited for extraction of zinc sulfate from blast furnace white dust resulting in the smelting of secondary copper. According to the process, the flue dust is leached in sulfuric acid solution for substantially complete dissolution of soluble constituents, notably zinc, leaving insoluble residue consisting principally of lead oxide. At completion of leaching, pH is selectively adjusted corresponding to the desired extent of subsequent chloride removal. Second, the loaded leach solution is treated for chloride removal wherein chloride ion concentration is substantially and selectively reduced by precipitation of cuprous chloride, cuprous ions being provided by pH regulated reduction of cupric ions. Third, the dechlorinated leach solution is treated by pH regulated cementation with zinc to remove residual cupric copper from the previous step along with other metal impurities more noble than zinc. Fourth, iron is precipitated from the acidic leach solution by oxidation of acid-soluble ferrous ions to the relatively insoluble ferric state. Finally, the purified leach solution is subjected to evaporative crystallization to recover commercial grade zinc sulfate.

    Abstract translation: 提供了一种湿法冶金方法,用于分离处理含有大量铅,氯和铁的含锌冶金烟尘。 该方法特别适用于从高炉白色粉尘中提取硫酸锌,导致二次铜的熔炼。 根据该方法,将烟道灰浸在硫酸溶液中,使溶解成分(特别是锌)基本上完全溶解,留下主要由氧化铅组成的不溶性残渣。 在完成浸出时,根据随后的氯化物去除的期望程度来选择性地调节pH。 第二,处理负载的浸出溶液进行氯化物去除,其中通过氯化亚铜的沉淀基本上和选择性地还原氯离子浓度,通过调节铜离子的还原来提供亚铜离子。 第三,脱氯浸出溶液用锌调节胶结处理,以除去前一步中残留的铜铜以及比锌更贵的其他金属杂质。 第四,通过将酸溶性亚铁离子氧化成相对不溶的铁状态,铁从酸性浸出溶液中沉淀出来。 最后,将纯化的浸出溶液进行蒸发结晶以回收商业级硫酸锌。

    Method and apparatus for producing uniformly baked anodes
    115.
    发明授权
    Method and apparatus for producing uniformly baked anodes 失效
    用于生产均匀烘烤的阳极的方法和设备

    公开(公告)号:US4354828A

    公开(公告)日:1982-10-19

    申请号:US245006

    申请日:1981-03-18

    CPC classification number: F27B13/00 F27D19/00 F27D2019/0018 F27D2019/0034

    Abstract: A method and apparatus for automatically controlling a carbon bake furnace to thereby reduce uniformly baked anodes is disclosed. In its method aspects, the invention contemplates the use of flue and pit temperatures to produce a control signal to operate a valve for varying the air fuel mixture of a burner associated with said valve. In its apparatus aspects, the invention utilizes a plurality of infrared detectors to measure the pit and flue temperatures. The signals produced by these sensors are fed to a computer which produces a control signal for operating a valve associated with at least one of a plurality of burners which is to have its air/fuel ratio adjusted to thus adjust the temperature in the pit heated by the selected burner to a desired target temperature.

    Abstract translation: 公开了一种用于自动控制碳烤炉从而减少均匀烘烤的阳极的方法和装置。 在其方法方面,本发明考虑使用烟道和坑温度来产生控制信号以操作阀,以改变与所述阀相关联的燃烧器的空气燃料混合物。 在其装置方面,本发明利用多个红外检测器来测量坑和烟道温度。 由这些传感器产生的信号被馈送到计算机,其产生用于操作与多个燃烧器中的至少一个相关联的阀的控制信号,所述燃烧器的空气/燃料比被调节,从而调节由加热的炉中的温度 所选择的燃烧器达到所需的目标温度。

    Method of hot-forming metals prone to crack during rolling
    116.
    发明授权
    Method of hot-forming metals prone to crack during rolling 失效
    热轧金属在轧制过程中易发生裂纹的方法

    公开(公告)号:US4352697A

    公开(公告)日:1982-10-05

    申请号:US80368

    申请日:1979-10-01

    Abstract: A method of continuously casting a molten metal in a casting means to obtain a solidified cast bar at a hot-forming temperature, passing the cast metal at a hot-forming temperature from the casting means to a hot-forming means, and hot forming the cast bar into a wrought product by a two-stage reduction of its cross-sectional area while it is still at a hot-forming temperature, including, in the first stage, the step of forming a shell of finely distributed recrystallized grains in the surface layers of the cast bar by a selected small amount of deformation of the cast bar in its as-cast condition prior to the second stage in which substantial reduction of its cross-sectional area forms the wrought product. The shell of fine grains formed on the cast bar during the first stage of deformation permits substantial reduction of the cross-sectional area of the cast bar during the second stage of deformation without the cast bar cracking, even when the cast bar has a high impurity content.

    Abstract translation: 一种在铸造装置中连续铸造熔融金属的方法,以在热成型温度下获得固化的铸造棒,使铸造金属在热成型温度下从铸造装置通过热成形装置,并热成型 浇铸棒在其仍然处于热成型温度的状态下通过两截面的减小其横截面积而变成锻造品,其包括在第一阶段中在表面形成细分布的再结晶晶粒的壳体的步骤 在第二阶段之前通过选定的少量的铸造棒在其铸造条件下的变形,其中其横截面积的显着减少形成锻造产品的第二阶段。 在变形的第一阶段期间在铸棒上形成的细晶粒的壳体在变形的第二阶段期间可大幅度地减小铸造件的横截面面积,而不会造成铸钢杆的破裂,即使铸造棒具有高杂质 内容。

    Separative treatment of anode slime
    117.
    发明授权
    Separative treatment of anode slime 失效
    阳极泥的分离处理

    公开(公告)号:US4283224A

    公开(公告)日:1981-08-11

    申请号:US146883

    申请日:1980-05-05

    Abstract: A hydrometallurgical process is provided for the separative treatment of electrometallurgical anode slime containing precious metals and substantial amounts of tin dioxide and lead sulfate. The process is especially suited for treatment of anode slimes from the electrorefining of secondary copper to recover about 85% of the metal value contained therein, especially tin and precious metals. First, lead is separated by leaching the slime with diethylene triamine followed by carbonation to precipitate lead carbonate with subsequent regeneration of the leach solution. Second, tin is separated by leaching the undissolved residue from the amine leach with a solution of hydrochloric acid and chlorine to dissolve substantially all substances except tin dioxide. Third, the pregnant leach solution is contacted with an exchange resin substantially selective to adsorption of precious metals except silver followed by cementation of silver from the depleted leach solution by copper addition with subsequent regeneration of the leach solution. Fourth, the loaded resin is elutriated followed by cementation of precious metals from the loaded eluate with silver from the previous step and recycling the silver-enriched solution for cementation of silver.

    Abstract translation: 提供了一种湿法冶金工艺,用于分离处理含有贵金属和大量二氧化锡和硫酸铅的电冶金阳极泥。 该方法特别适用于从二次铜的电解精炼处理阳极泥,以回收其中所含的金属值的约85%,特别是锡和贵金属。 首先,通过用二亚乙基三胺浸出粘土然后碳酸化分离铅,以沉淀碳酸铅,随后再浸出浸出溶液。 第二,通过用盐酸和氯的溶液从胺浸出中浸出未溶解的残余物来分离锡,以基本上溶解除二氧化锡之外的所有物质。 第三,将怀孕的浸出溶液与基本上选择性地吸附除了银之外的贵金属的交换树脂接触,然后通过铜添加从贫化浸出溶液中固化银,随后再浸出浸出溶液。 第四,将装载的树脂进行淘析,然后从上一步从装载的银的洗脱液中用贵金属固化,并再循环富集银的溶液以进行固化。

    Method for manufacturing an aluminum alloy electrical conductor
    118.
    发明授权
    Method for manufacturing an aluminum alloy electrical conductor 失效
    铝合金电导体的制造方法

    公开(公告)号:US4234359A

    公开(公告)日:1980-11-18

    申请号:US870651

    申请日:1978-01-19

    CPC classification number: C22F1/04

    Abstract: This disclosure relates to a method and apparatus for manufacturing an aluminum alloy electrical conductor which promote the formation of a wire having a fine, stable subgrain structure of small cell size in the aluminum matrix and a fine dispersion of stable, insoluble intermetallic phase particles. The subgrain structure is improved by closely controlling the thermomechanical processing, particularly the casting rate, deformation parameters and annealing characteristics. After casting, the cast product is substantially immediately hot-formed in a rolling mill wherein the first deformation is more than 30% such that a substantially well defined subgrain structure will be formed in the aluminum matrix, thereby maximizing a refinement of the subgrain structure by permitting breaking-up thereof in each of the subsequent deformations in the rolling mill. After cold-working, without preliminary or intermediate anneals, the product is finally annealed at a temperature not exceeding approximately 700.degree. F.

    Abstract translation: 本公开涉及一种用于制造铝合金电导体的方法和装置,其促进在铝基体中形成具有细小尺寸的细小且稳定的亚晶格结构的线,以及稳定的不溶性金属间相颗粒的细分散体。 通过密切控制热机械加工,特别是铸造速率,变形参数和退火特性,改善了亚晶格结构。 在铸造之后,铸造产品在轧机中基本上立即热成型,其中第一变形大于30%,使得在铝基体中将形成基本上良好限定的亚晶格结构,由此最大化亚晶格结构的细化 允许在轧机中随后的每个变形中断裂。 在冷加工后,没有初步或中等退火,产品最终在不超过约700°F的温度下退火。

    Aluminum nickel base alloy electrical conductor and method therefor
    119.
    发明授权
    Aluminum nickel base alloy electrical conductor and method therefor 失效
    铝镍基合金电导体及其方法

    公开(公告)号:US4216031A

    公开(公告)日:1980-08-05

    申请号:US871617

    申请日:1978-01-23

    CPC classification number: C22C21/00 H01B1/023

    Abstract: Improved aluminum alloy electrical conductors and method for making same are disclosed. The alloy contains from about 0.55 to about 0.65 weight percent nickel, the remainder aluminum with associated trace elements including no more than 0.15 weight percent iron, no more than 0.001 weight percent magnesium and no more than 0.05 weight percent copper.

    Abstract translation: 公开了改进的铝合金电导体及其制造方法。 该合金含有约0.55至约0.65重量%的镍,其余的铝与相关的微量元素包括不超过0.15重量百分比的铁,不超过0.001重量百分比的镁和不超过0.05重量百分比的铜。

    Galvanized tube welded seam repair metallizing process
    120.
    发明授权
    Galvanized tube welded seam repair metallizing process 失效
    镀锌管焊缝修补金属化工艺

    公开(公告)号:US4191319A

    公开(公告)日:1980-03-04

    申请号:US891892

    申请日:1978-03-30

    CPC classification number: C23C2/26 B21C37/0807 Y10T29/49986

    Abstract: This disclosure relates to a method and apparatus for manufacturing zinc coated steel tubing from zinc coated steel strip. The zinc lost by volatilization during welding of the seam is replaced in a two-stage metallizing process. In the first stage an aluminum alloy is spray atomized onto the tubing. The alloy contains from 0.45 to 0.95 weight percent iron, no more than 0.10 weight percent silicon, and the remainder aluminum with associated trace elements. Thereafter, in the second stage, zinc is spray atomized over the aluminum alloy-coated substrate.

    Abstract translation: 本公开涉及一种用于从镀锌钢带制造镀锌钢管的方法和设备。 在焊接焊接过程中由于挥发而损失的锌在两级金属化过程中被替换。 在第一阶段,铝合金喷雾雾化到管道上。 该合金含有0.45至0.95重量百分比的铁,不超过0.10重量%的硅,剩下的铝含有相关的微量元素。 此后,在第二阶段,锌在涂有铝合金的基材上喷雾雾化。

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