公开(公告)号：US3905803A

公开(公告)日：1975-09-16

申请号：US41938073

申请日：1973-11-27

申请人： CENTRO SPERIMENT METALLURG

发明人： BIANCHI PAOLO ,  RAMACCIOTTI ALDO ,  REPETTO EUGENIO

IPC分类号： B22D23/00 ,  B22D23/10 ,  C22B9/18 ,  C22B9/187 ,  C22C1/02 ,  C22D7/00 ,  B22D27/02 ,  H05B7/18

CPC分类号： C22B9/18 ,  C22C1/02

摘要： A process for producing metal alloys in the form of large-size ingots, by melting under electro-conductive slag, wherein the material forming the alloy is partly supplied as solid metal and partly as metal in powder, granules or pellets, for conciseness called ''''particulate metal'''' comprising the sequential operations of: A. INTRODUCING INTO A MOLD, THE BOTTOM OF WHICH IS MADE OF ELECTRO-CONDUCTIVE MATERIAL, A CONSUMABLE-ELECTRODE UNIT, UNTIL CONTACTS THE SLAG; B. PARTIALLY FILLING WITH SAID PARTICULATE METAL A ZONE OR RECESS PROVIDED INSIDE SAID ELECTRODE UNIT AT ITS END CONTACTING THE SLAG, CLOSED AT ITS BOTTOM END BY A BOTTOM WALL, AND AT ITS TOP BY A FEEDING PLATE FOR THE POWDER METAL; C. ESTABLISHING IN SAID ZONE A CONTROLLED ATMOSPHERE BY A GAS CIRCULATION; D. INCREASING THE TEMPERATURE UNTIL OBTAINING THE GRADUAL MELTING OF SAID BOTTOM WALL AND THE GRADUAL SIMULTANEOUS SINTERING OF THE PARTICULATE METAL IN SAID ZONE UNTIL FORMING A SINTERED LAYER HAVING A THICKNESS SUFFICIENT TO SUPPORT THE WEIGHT OF THE SUPERPOSED PARTICULATE METAL; E. MELTING THE SO OBTAINED COMPOSITE ELECTRODE COMPRISING BOTH THE ELECTRODIC UNIT AND THE PARTICULATE METAL CONTINUOUSLY FED TO THE MELTING ZONE.

摘要翻译： 一种生产大尺寸铸锭的金属合金的方法，通过在导电渣处熔化，其中形成合金的材料部分地以固体金属的形式提供，部分作为粉末，颗粒或颗粒中的金属提供，简称为“ 颗粒状金属“，其包括以下顺序操作：

公开(公告)号：US3853593A

公开(公告)日：1974-12-10

申请号：US27029172

申请日：1972-07-10

申请人： CENTRO SPERIMENT METALLURG

发明人： BAUDO G ,  BOMBARA G

IPC分类号： C23C22/83 ,  B44D1/44

CPC分类号： C23C22/83

摘要： BY INDUCTIVE EFFECT; - IMMERSING THE COATED MATERIAL INTO THE SAID SOLUTION AT A TEMPERATURE RANGING FROM 30* TO 90*C, for a time ranging from 1'''' to 15'', while keeping the solution under constant stirring; - RINSING IN WATER AND DRYING THE SURFACE OF THE COATING.

Wherein: R is a monovalent radical derived from an aromatic type ring, either condensed or not, either containing hetero atoms or not; R'' is a monovalent radical, able to impoverish the electronic density of the enolic group

Process for improving the protecting properties of chromium oxide based coatings, including sequentially the following operations: - PREPARING AN AQUEOUS SOLUTION, WITH CONCENTRATIONS RANGING FROM 0.1 TO 10 G/LITER OF A BETA-DIKETONE WITH THE FOLLOWING GENERAL FORMULA

摘要翻译： 改善氧化铬基涂料保护性能的方法，包括依次进行以下操作：

公开(公告)号：US3528799A

公开(公告)日：1970-09-15

申请号：US3528799D

申请日：1969-03-19

申请人： CENTRO SPERIMENT METALLURG

发明人： RAMACCIOTTI ALDO

IPC分类号： C09K3/14 ,  C21C1/00 ,  C21C5/56 ,  C21C7/02 ,  C21C7/04

CPC分类号： C21C1/00 ,  C09K3/1436 ,  C21C5/567 ,  Y02P10/212 ,  Y10S75/957

公开(公告)号：US3891022A

公开(公告)日：1975-06-24

申请号：US36423973

申请日：1973-05-29

申请人： CENTRO SPERIMENT METALLURG

发明人： COLA GIORGIO

IPC分类号： B22C1/18 ,  B22C7/00 ,  B22C9/00 ,  B22C9/28

CPC分类号： B22C1/181 ,  B22C7/005 ,  B22C9/00 ,  Y10S425/014

摘要： In the manufacture of cores and moulds, an inflatable pattern for use in the production of a foundry mould with a fluidal moulding material. The pattern includes a thin-walled flexible body having inlet means for the admission of gas. In addition, the thin-walled body is made from either elastomers or extendible plastics and is preshaped and dimensioned so that in its inflated condition the pattern defines the desired profile for the moulding material. In practice, the moulding material is poured about and in contact with the extendible pattern (or core box) while the pattern is concurrently filled with fluid to provide and maintain its preshaped and dimensioned walls. Thereafter, the pattern is maintained in its extendible condition as the moulding material sets and then the fluid is withdrawn from the pattern to permit its removal from the moulding material.

摘要翻译： 在芯和模具的制造中，用于生产具有流体成型材料的铸造模具的可充气图案。 该图案包括具有入口气体的入口装置的薄壁柔性体。 此外，薄壁体由弹性体或可伸缩塑料制成，并且被预成型和尺寸设计，使得在其膨胀状态下，图案限定了模制材料所需的轮廓。

公开(公告)号：US3868247A

公开(公告)日：1975-02-25

申请号：US47408874

申请日：1974-05-28

申请人： CENTRO SPERIMENT METALLURG

发明人： RAMACCIOTTI ALDO

IPC分类号： C21C5/32 ,  C21C5/56 ,  C21C7/04 ,  C21C7/00

CPC分类号： C21C5/562 ,  C21C5/32 ,  C21C7/04 ,  Y02P10/143 ,  Y02P10/216

摘要： A process for the production of steel by melting and refining of a metallic charge, containing a variable percentage of carbon, in a vertical converter preferably rotating around its vertical axis, wherein said charge consists of solid materials such as steel scrap and iron in pigs, and possibly a relatively small amount of liquid pig iron, wherein the heat necessary for the melting and the overheating of said charge is supplied by the combustion of a liquid or gaseous hydrogen-and carbon-based fuel such as fuel oil, gas oil, natural gas, delivered by a suitable burner, by the combustion of the gases remaining from said first combustion and by the combustion of a small amount of coke, wherein during a great part of the melting stage and during the entire refining, a reducing atmosphere is set up and maintained in contact with the material of the charge, while out of contact with said material of the charge an oxidizing atmosphere is set up and maintained.

摘要翻译： 通过在垂直转炉中熔化和精制含有可变百分比的碳的方法来生产钢的方法，优选地围绕其垂直轴线旋转，其中所述装料由猪中的废钢和铁等固体材料组成， 并且可能是相对少量的液态生铁，其中所述电荷的熔化和过热所需的热量通过燃料的液体或气态氢和碳基燃料例如燃料油，瓦斯油，天然气 气体，由合适的燃烧器输送，通过从所述第一燃烧剩余的气体的燃烧和少量焦炭的燃烧，其中在熔融阶段的大部分期间和在整个精炼期间设定还原气氛 并且与电荷的材料保持接触，同时与所述电荷材料的接触不会形成并维持氧化气氛。

公开(公告)号：US3785802A

公开(公告)日：1974-01-15

申请号：US3785802D

申请日：1971-01-18

申请人： CENTRO SPERIMENT METALLURG

发明人： ROBERTI G ,  DUFOUR BERTE C ,  PASERO E

IPC分类号： C21B15/04 ,  C22B1/08 ,  C22B5/20

CPC分类号： C22B5/20 ,  C21B15/04 ,  C22B1/08 ,  Y02P10/216

摘要： The invention consists in a method for extracting and separating iron from non-ferrous metals from ferrous ores and similar ferrous materials of such a pyrite ashes and/or purple ores, powders recovered from the steelmaking oxygen converter fumes and the like. The method comprising a first step wherein the material is reduced to an iron sponge preferably by means of hydrogen and similar reducing gases; a second step wherein said iron sponge is treated with carbon monoxide so as to obtain ferrocarbonyl vapors and a carbonylation solid residue with a higher concentration of non-ferrous metals; a third step consisting in the treatment of the ferrocarbonyl vapors on one side and then of the carbonylation solid residue; wherein the ferrocarbonyl vapors are condensed and then dissociated into pure iron powder and carbon monoxide which is used again in said second step, and wherein the residual carbonylation solid is treated to extract and recover the non ferrous metals contained therein.

公开(公告)号：US3776532A

公开(公告)日：1973-12-04

申请号：US3776532D

申请日：1972-04-04

申请人： CENTRO SPERIMENT METALLURG

发明人： IMBERTI B

IPC分类号： C21C5/46 ,  F27D3/15 ,  C21B

CPC分类号： C21C5/4653 ,  F27D3/1509

摘要： A device for plugging the taphole of reactors for metallurgical processes, of rotating and/or oscillating type; comprising in combination a plug having an essentially frusto-conical shape; a tail piece, fixed to the greater base of the plug and substantially perpendicular thereto, having its free end folded in order to allow the plug to be operated; a rod rigid with, and perpendicular to, the minor base of the plug, the free end of which is so shaped as to allow its anchoring to the locking member of the plug; a member for locking the plug on the taphole located on the outer edge of the hole itself and co-operating with the end of said rod, said member being easily removable and apt to be reused.

摘要翻译： 用于堵塞用于冶金过程的反应器的出口的旋转和/或振荡式的装置; 包括具有基本上截头圆锥形状的塞子的组合; 固定在插头的较大的底部并与其基本垂直的尾片，其自由端折叠以允许插头操作; 刚性的并且垂直于插头的次基部的杆，其自由端被成形为允许其锚固到插头的锁定构件; 用于将插头锁定在位于孔本身的外边缘上的分接孔上并与所述杆的端部配合的构件，所述构件易于拆卸并易于重新使用。

公开(公告)号：US3727669A

公开(公告)日：1973-04-17

申请号：US3727669D

申请日：1970-12-28

申请人： CENTRO SPERIMENT METALLURG ,  TERNI IND ELETTR

发明人： ARBITRIO P ,  BASEVI S ,  FORNARI A ,  SENSI A

IPC分类号： B22D11/00 ,  B22D11/055 ,  B22D11/124 ,  C22C38/02 ,  B22D11/12

CPC分类号： C22C38/02 ,  B22D11/001 ,  B22D11/055 ,  B22D11/124

摘要： A process for the continuous casting of steel for the manufacture of grain-oriented electrical sheet, in strip or in sheets, wherein a primary cooling water and a secondary cooling water is used, characterized in that the primary cooling water is maintained at the minimum value compatible with not damaging the mould and with the attainment of a sufficient mechanical strength in the outer shell of the output slab.

摘要翻译： 一种用于制造用于制造带状或片状的晶粒取向电工片的钢的方法，其中使用一次冷却水和二次冷却水，其特征在于，一次冷却水保持在最小值 兼容不损坏模具并且在输出板的外壳中获得足够的机械强度。

公开(公告)号：US3903470A

公开(公告)日：1975-09-02

申请号：US44804574

申请日：1974-03-04

申请人： CENTRO SPERIMENT METALLURG

发明人： MIRABILE MANLIO ,  PAGLINI FRANCO

IPC分类号： G01D1/14 ,  G01R23/02 ,  G01R29/00 ,  G01R23/16

CPC分类号： G01R23/02 ,  G01D1/14 ,  G01R29/00

摘要： A circuit for analyzing the time behavior and amplitude distribution of electric signals which may typically be trains of damped oscillations produced by a signal source such as a piezoelectric transducer which after amplification and possibly filtering to eliminate unwanted signal frequency components are applied to the inputs of a plurality of voltage comparators which have threshold values arranged in increasing scale. The output signals are processed so that for each train of oscillations a signal is produced related to the highest swing of the oscillatory signal in said train of damped oscillations. The inhibition of the outputs relating to the swings having an amplitude lower than the maximum one in a given train is obtained by means of an arrangement of one-shot circuits, flip-flops and coincidence gates by which only one output is obtained on a set of output terminals correlated with the plurality of threshold levels of said plurality of voltage comparators.

摘要翻译： 用于分析电信号的时间行为和幅度分布的电路，其通常可以是由诸如压电换能器的信号源产生的阻尼振荡的列，其在放大之后和可能的滤波以消除不期望的信号频率分量，被施加到输入 具有以规模排列的阈值的多个电压比较器。 处理输出信号，使得对于每个振荡系列，产生与所述阻尼振荡列中的振荡信号的最高摆幅相关的信号。 通过单触发电路，触发器和重合门的布置获得与具有低于给定列中的最大值的幅度相关的输出的输出的抑制，通过该排列在集合上仅获得一个输出 与所述多个电压比较器的多个阈值电平相关的输出端子。

公开(公告)号：US3873652A

公开(公告)日：1975-03-25

申请号：US24736272

申请日：1972-04-25

申请人： CENTRO SPERIMENT METALLURG

发明人： RAMACCIOTTI ALDO

IPC分类号： C21C5/44 ,  F27D1/16 ,  F27D3/00

CPC分类号： F27D1/1636 ,  C21C5/443 ,  F27D1/1673 ,  F27D2003/0087

摘要： A process for restoring the thickness and/or the integrity of the refractory lining of the walls of reactors while rotating about their substantially vertical geometrical axes, comprising a step of laying the material suitable for the repair, dried and in granular form, projected against the zones where the repair is necessary, and a step of sintering the laid material on the zone interested to the repair due to the heat developed inside the reactor, wherein the projection of said material to be laid will be effected at a speed whose representative vector lies in a horizontal plane, said vector being as much as possible coincident as to its direction, sense and magnitude, with the vector representing the linear peripheral speed of the reactor at the point of impact of the grains of the repair material onto the walls of the reactor, the values of said speeds being selected as to ensure the adhesion of the grains to the wall of the reactor due to the centrifugal force and the friction.

摘要翻译： 一种用于在围绕其基本上垂直的几何轴线旋转的同时恢复反应器壁的耐火衬里的厚度和/或完整性的方法，包括将适合于修复，干燥和呈颗粒状的材料放置成相对于 需要修理的区域，以及由于在反应器内部产生的热量而使感兴趣的修补区域上的铺设材料烧结的步骤，其中待铺设的所述材料的突起将以代表向量所在的速度进行 在水平面中，所述载体尽可能地与其方向，感觉和幅度重合，其中矢量表示在维修材料的颗粒撞击到墙壁上的反应器的线的圆周速度 选择所述速度的值，以确保由于离心力和摩擦而使颗粒与反应器的壁粘合。