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公开(公告)号：US3836359A
公开(公告)日：1974-09-17
申请号：US26401272
申请日：1972-06-19
申请人： REPUBLIC STEEL CORP
发明人： THOMAS J , GRIFFITH C
摘要： High lead content of uniformly dispersed finely divided particles is obtained in cast steel through a programmed addition of lead to molten steel in a vessel and control of other process factors, such as temperature, agitation and slag cover, affecting dissolution and retention of lead in molten steel. In the addition of lead, an initial quantity is introduced to the steel, large with respect to the time during which it is added as compared with the total lead added relative to the total time span of lead addition, and subsequently additional led is added, the total sufficient to produce a lead content in the steel greater than 0.15 percent by weight and no greater than 0.26 percent by weight. Preferably the total lead is introduced as three to five discrete additions at time intervals of one to fifteen minutes.
摘要翻译： 在铸钢中通过程序性地将铅加入容器中的钢水并控制其它工艺因素，例如温度，搅拌和熔渣覆盖物，从而获得均匀分散的细碎颗粒的高铅含量，从而影响铅在熔融中的溶解和保留 钢。 在铅的添加中，引入钢的初始量相对于添加铅的时间相对于铅添加的总时间长度而言较大，并且随后添加另外的引线， 足以使钢中的铅含量大于0.15重量％且不大于0.26重量％。 优选地，总铅以1至15分钟的时间间隔引入3至5个离散添加。
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公开(公告)号：US3802730A
公开(公告)日：1974-04-09
申请号：US72379268
申请日：1968-04-24
申请人： REPUBLIC STEEL CORP
发明人： HOUGH J
CPC分类号： B66C1/66 , B66C13/00 , B66C2700/017
摘要： A crane structure comprising a trolley, a beam member which is suspended from the trolley by flexible cables, a hoist on the trolley for changing the elevation of the beam, and a pair of hook assemblies. The beam is constructed to provide cam portions adjacent bearing seats so that the hook assemblies are guided from one bearing seat to another when the beam is lowered until the weight of the hook assembly is supported by a surface beneath them. A hook assembly stabilizing mechanism is also provided. The disclosure also includes a novel laminated hook construction which establishes line contact with a support which line forms a pivot axis for hook adjustment.
摘要翻译： 一种起重机结构，包括手推车，通过柔性电缆悬挂在手推车上的梁构件，用于改变梁的高度的手推车上的起重机和一对钩组件。 梁被构造成提供靠近轴承座的凸轮部分，使得当梁被降低直到钩组件的重量被其下面的表面支撑时，钩组件从一个轴承座被引导到另一个轴承座。 还提供了一种钩组件稳定机构。 本公开还包括一种新颖的层叠钩结构，其与支撑件建立线接触，该线形成用于钩调节的枢转轴线。
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公开(公告)号：US3753788A
公开(公告)日：1973-08-21
申请号：US3753788D
申请日：1971-10-15
申请人： REPUBLIC STEEL CORP
发明人： FOGARTY J , ODAR S , ANGERMAN G
CPC分类号： C22C38/32
摘要： Low carbon ferritic stainless steel containing about 14-18 percent chromium, 0.0005 to 0.005 percent boron, up to about 0.12 percent, and preferably 0.02 to 0.12 percent columbium, characterized by substantial freedom from ribbing in unidirectionally hot rolling and thence unidirectionally cold rolling into thin gauge strip; also cold rolled strip in long lengths made of said steel and methods of producing same.
摘要翻译： 含有约14-18％的铬，0.0005至0.005％的硼，至多约0.12％，优选为0.02至0.12％的铌的低碳铁素体不锈钢，其特征在于在单向热轧中基本上没有肋条，从而单向冷轧成薄 规格条 还有由所述钢制成的长长的冷轧带钢及其制造方法。
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公开(公告)号：US3744831A
公开(公告)日：1973-07-10
申请号：US3744831D
申请日：1972-02-10
申请人： REPUBLIC STEEL CORP
CPC分类号： E05C19/06 , Y10S292/68 , Y10T292/0895 , Y10T292/1097
摘要： A door latching mechanism includes a rigid hook element mounted upon one component of an enclosure and cooperating with a spring latch member of substantially C-shaped configuration mounted upon another component of the enclosure. A lock bar is provided of improved construction adapted to receive and retain the spring latch member without the use of separate fastening elements.
摘要翻译： 门锁定机构包括安装在外壳的一个部件上并与安装在外壳的另一部件上的大致C形构造的弹簧闩锁构件配合的刚性钩元件。 提供了一种改进的构造的锁杆，其适于在不使用单独的紧固元件的情况下接收和保持弹簧闩锁构件。
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公开(公告)号：US3737307A
公开(公告)日：1973-06-05
申请号：US3737307D
申请日：1971-12-01
申请人： REPUBLIC STEEL CORP
发明人： FITZHUGH E , BUSH P , SEIDEL D
CPC分类号： C22B23/0469
摘要： THE PROCESS DISCLOSED HEREIN COMPRISES THE PROCESS OF CEMENTING OR PRECIPITATING NICKEL FROM A SOLUTION CONTAINING NICKEL SALTS BY THE ADDITION OF IRON PARTICLES UNDER AN OVERPRESSURE OF AT LEAST 35 P.S.I.G., PREFERABLY AT LEAST 60 P.S.I.G., AND AT A TEMPERATURE OF AT LEAST 60* AND LESS THAN 100*C. THE IRON PARTICLES PREFERABLY HAVE A THIN COATING OF COPPER THEREON. THE USE OF OVERPRESSURE PERMITS A LOWER TEMPERATURE TO BE USED IN THE RECOVERY PROCESS, FAVORS MORE COMPLETE CEMENTATION OF THE NICKEL THAN WITHOUT THE OVERPRESSURE, AND RESULTS IN A LOWER SULFUR CONTENT IN THE CEMENTED METAL SO THAT THE PRODUCT MAY BE USED DIRECTLY IN ALLOYING FURNACES WITHOUT A PRIOR ROASTING STEP TO REDUCE THE SULFUR CONTENT.
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公开(公告)号：US3678268A
公开(公告)日：1972-07-18
申请号：US3678268D
申请日：1970-11-05
申请人： REPUBLIC STEEL CORP
CPC分类号： G01N23/12 , G05D11/137
摘要： The output of a radioactive source is directed through a moving stream of granular material, e.g., coal on a conveyor, and the radiation passing through is sensed by a detector. The detector generates a pulse signal of which the pulse repetition rate varies with the radiation sensed. The pulses generated are counted in a binary counter, and a timer periodically initiates a read-out of and resets the counter to effect successive counting cycles, whereupon the digital count in each cycle is converted to an analog voltage, the magnitude of which is recorded in terms of bulk density of the coal. The recorder controls the addition of water or oil to the coal to, respectively, lower or increase the bulk density of the coal. Controls are included which guard the system from misperforming when a supply of coal has failed, when the depth of coal on the conveyor belt has been lost, and when the coal is so dense that an application of water is required.
摘要翻译： 放射源的输出通过移动的粒状材料流引导，例如在输送机上的煤，并且由检测器感测通过的辐射。 检测器产生脉冲重复频率随感测辐射而变化的脉冲信号。 产生的脉冲在二进制计数器中进行计数，并且定时器周期性地启动计数器的读出和复位以实现连续的计数循环，于是每个周期中的数字计数被转换成模拟电压，其幅度被记录 在煤的堆积密度方面。 记录器控制向煤中添加水或油分别降低或增加煤的堆积密度。 包括控制装置，当煤炭供应失败时，当输送带上的煤深度已经消失，以及煤如此密集以至需要施加水时，防止系统失控。
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公开(公告)号：US3672327A
公开(公告)日：1972-06-27
申请号：US3672327D
申请日：1966-10-31
申请人： REPUBLIC STEEL CORP
发明人： ROBLIN JOHN M , COLE FRANK J , REED WILLIAM A
CPC分类号： C23C14/243
摘要： Vaporizing apparatus and method for the vaporization of metal for vacuum deposition. A relatively thin shell of liquid metal to be vaporized is provided such as through inner and outer concentric vessels which communicate with each other. The thin shell of liquid is heated and boils and evaporates to provide metal for vaporization. The thin shell of liquid is generally formed within the space between the inner and outer concentric vessels. The space within the inner vessel contains liquid which is typically molten but substantially non-boiling. The boiling shell of liquid fills the space between the inner and outer containers so as to provide substantially constant volume of metal for vaporization. Baffle means are provided for removing droplets of liquid normally from within the vapor.
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公开(公告)号：US3669618A
公开(公告)日：1972-06-13
申请号：US3669618D
申请日：1969-03-03
申请人： REPUBLIC STEEL CORP
发明人： CAPPEL FRED
CPC分类号： C21C5/28 , C22B1/16 , Y02P10/216
摘要： METHOD OF PRODUCING DICALCIUM FERRITE SINTER
(2CAO.FE2O3)
OF IMPROVED PROPERTIES WHICH COMPRISES: PREPARING AN ADMIXTURE OF RAW MATERIALS CONTAINING IRON OXIDE BEARING MATERIALS, PREFERABLY STEEL MILL WASTE PRODUCTS, SUCH AS FLUE DUST, PRECIPITATOR DUST, BLAST FURNACE GAS SCRUBBER SLUDGE, MILL SCALE DUST FROM BASIC OXYGEN STEEL PRODUCTION AND THE LIKE, AND CALCIUM OXIDE BEARING MATERIALS, SUCH AS LINESTONE AND/OR DOLOMITE, PLUS A SOLID CARBONACEOUS FUEL, SUCH AS COKE OR COKE BREEZE, AS REQUIRED AND IN PROPORTIONS TO PRODUCE A DICALCIUM FERRITE SINTER ON INGNITING AND SINTERING, AND ADDING TO SAID RAW MATERIALS ADMIXTURE SINTERED FINES FROM A PREVIOUS SINTERING OPERATION TO THE EXTENT OF ABOUT 30-50% AND PREFERABLY ABOUT 30-40% BY WEIGHT OF SAID RAW MATERIALS ADMIXTURE AND FOR PURPOSES OF CONTROLLING THE PROCESS, IMPROVING STRENGTH, STORAGEABILITY AND SINSTERING PROPERTIES, AND IGNITING THE RESULANT ADMIXTURE AND SINTERING INTO A UNIFORMITY WELL BURNED SINTER.-
9.发明授权
公开(公告)号：US3642541A
公开(公告)日：1972-02-15
申请号：US3642541D
申请日：1969-02-12
申请人： REPUBLIC STEEL CORP
发明人： SHEPARD GEORGE A
CPC分类号： C23C28/00 , C23C22/12 , Y10T428/12583 , Y10T428/273
摘要： A method for the manufacture of a corrosion-resistant aluminum metal-coated ferrous product and particularly a product composed of a zinc-coated ferrous metal substrate having superimposed thereon a coating of aluminum metal. The product prepared therefrom is characterized by having an intermediate layer of phosphate crystals of a minimum thickness sufficient to prevent interaction between the zinc undercoating on the ferrous metal substrate and water passing through the superimposed aluminum metal surface coating. The interposing layer of phosphate crystals has a critical maximum thickness such that not more than 100 milligrams of phosphate crystals is distributed over each square foot of surface area of the zinc ferrous metal substrate. Optimally, the interposing crystalline phosphate layer has a thickness such that 10 to 30 milligrams of phosphate crystals are distributed over each square foot of zinc ferrous metal substrate. The method of applying the said corrosion-resistant aluminum coating to the zinc ferrous metal substrate comprises: (a) contacting said zinc-coated ferrous metal substrate with a solution containing phosphate ion for about 2 to 15 seconds at a processing temperature of about 70* to 100* F. and (b) subsequently applying thereto a superimposed overcoat of an aluminum metal and bonding the composite coatings and substrate into a corrosion-resistant product.
摘要翻译： 一种用于制造耐腐蚀的铝金属涂层的亚铁产品的方法，特别是由镀有铝金属基底的镀锌黑色金属基底构成的产品。 由此制备的产品的特征在于具有足够的最小厚度的磷酸盐晶体的中间层，以防止黑色金属基底上的锌底涂层和通过叠加的铝金属表面涂层的水的相互作用。 磷酸盐晶体的插入层具有临界最大厚度，使得在铁基金属基底的每平方英尺的表面积上分布不超过100毫克的磷酸盐晶体。 最佳地，浸渍的结晶磷酸盐层的厚度使得在每平方英尺的含锌金属基底上分布10-30毫克磷酸盐晶体。 将所述耐腐蚀铝涂层施加到含锌金属基底上的方法包括：（a）在约70℃的加工温度下使所述镀锌黑色金属基底与含有磷酸根离子的溶液接触约2至15秒 至100°F，（b）随后将其涂覆在铝金属的叠加外涂层上，并将复合涂层和基材粘合到耐腐蚀产品中。
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公开(公告)号：US3640690A
公开(公告)日：1972-02-08
申请号：US3640690D
申请日：1968-11-21
申请人： REPUBLIC STEEL CORP
发明人： RIES GERALD D , POOLE SIDNEY W
CPC分类号： B23K35/3066 , Y10T428/12965
摘要： Alloy steel welding wire is disclosed as being suitable for welding steels having the composition 0.18 to 0.30 percent carbon, 7.0 to 9 percent nickel, 3.5 to 4.5 percent cobalt, 0.35 to 1.10 percent each of the chromium and molybdenum, 0.10 to 0.35 percent manganese, 0.6 to 0.12 percent vanadium, up to 0.1 percent silicon, up to 0.010 percent each of sulfur and phosphorus, balance iron except for extraneous impurities within commercial tolerances. The alloy steel welding wire has the composition of 0.15 to 0.20 percent carbon, 7.0 to 8.0 percent nickel, 3.0 to 5.0 percent cobalt, 0.5 to 1.0 percent chromium, 0.8 to 1.1 percent molybdenum, 0.4 to 1.25 percent manganese, 0.10 to 0.50 percent silicon, up to 0.1 percent vanadium, up to 0.015 percent each of phosphorus and sulfur, up to 0.05 percent aluminum, up to 0.05 percent of metal of the group titanium and zirconium, balance iron except for impurities within commercial tolerances.
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