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公开(公告)号：US5417772A
公开(公告)日：1995-05-23
申请号：US967439
申请日：1992-10-28
CPC分类号： C21D8/1211 , B22D11/06 , C21D8/1233 , C21D8/1266 , C21D8/1272
摘要： Method for producing a magnetic steel strip having a thickness of less than 5 mm and containing, in composition by weight, more than 2% silicon, less than 0.1% carbon and a suitable amount of secondary recrystallization inhibiting elements, the balance being iron, obtained by a direct casting on one roll or between two rolls, characterized in that it comprises creating a crystallization structure comprising oriented grains {110} in the skin, i.e. on the surface of a quench zone, by the sudden cooling of the steel in contact with the roll or rolls whose surface temperature is lower than 400.degree. C.
摘要翻译： 制造厚度小于5mm的磁钢带的制造方法，其组成为含有2％以上的硅，小于0.1％的碳和适量的二次再结晶抑制元素，余量为铁，得到 通过在一个辊或两个辊之间的直接铸造，其特征在于，其包括在皮肤中，即在淬火区域的表面上，通过钢的突然冷却产生包含定向晶粒{110} <001>的结晶结构 与表面温度低于400℃的辊或辊接触。
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公开(公告)号：US5335717A
公开(公告)日：1994-08-09
申请号：US828206
申请日：1992-01-30
申请人： Stephen Chin , Donald R. Parille , Paul R. Aimone , Robert L. McCormick , Paul R. Johnson , Bart M. Kilinski
发明人： Stephen Chin , Donald R. Parille , Paul R. Aimone , Robert L. McCormick , Paul R. Johnson , Bart M. Kilinski
摘要： The oxidation resistance of a superalloy casting such as an equiaxed, directionally solidified, or single crystal casting, is improved by melting, pouring, or casting the alloy so as to react with a magnesium or calcium-bearing ceramic material. Magnesium or calcium is introduced into the alloy through a controlled reaction between the alloy and the magnesium or calcium-bearing ceramic material.
摘要翻译： 通过熔融，浇注或铸造合金以与含镁或钙的陶瓷材料发生反应，提高了诸如等轴，定向凝固或单晶铸件的超级合金铸件的抗氧化性能。 通过合金和含镁或钙的陶瓷材料之间的受控反应将镁或钙引入合金中。
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73.发明授权
公开(公告)号：US5161604A
公开(公告)日：1992-11-10
申请号：US857757
申请日：1992-03-26
摘要： A casting mold includes an ingate for engaging an underlying source of the melt, an upstanding alloyant-containing reaction chamber having an upper region communicated to the ingate, and an exit gate communicating a lower region of the reaction chamber to a mold cavity. The mold and the source of a melt are relatively moved to engage the ingate and the source. A sufficient relative vacuum is applied to the mold cavity to draw the melt from the source upwardly through the ingate and into the reaction chamber where the melt reacts with alloyant therein. The melt is drawn upwardly to leave at least a portion of the volume of the mold cavity unfilled with melt and to provide a sufficient volume of melt in the reaction chamber to fill the unfilled volume of the mold cavity after disengagement of the mold and the source. The mold and the source are then relatively moved to disengage the ingate and the source while a relative vacuum is applied to the mold cavity sufficient to draw the volume of melt in the reaction chamber into the mold cavity such that the unfilled volume thereof is filled after the mold and the source are disengaged. The reaction chamber is thereby essentially emptied of melt as required to fill the unfilled volume of the mold cavity. The melt in the ingate is drained back to the underlying source when the mold and the source are disengaged.
摘要翻译： 铸模包括用于接合熔体的下层源的底部，具有连通到底部的上部区域的直立的含合金反应室，以及将反应室的下部区域连接到模具腔的出口门。 模具和熔体源相对移动以接合浇口和源。 将足够的相对真空施加到模腔，以将来自源的熔体向上通过底部并进入反应室，在该反应室中熔体与其中的合金化物反应。 将熔体向上拉以留下未填充有熔体的模腔体积的至少一部分，并且在分离模具和源之后在反应室中提供足够体积的熔体以填充模腔的未填充体积 。 然后将模具和源相对移动以脱离浇口和源，同时将相对真空施加到模具腔，足以将反应室中的熔体体积吸入模腔中，使得其未填充体积在 模具和源脱开。 因此，根据需要，反应室基本上被清空以填充模腔的未填充体积。 当模具和源脱开时，浇口中的熔体被排回到下面的源。
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74.发明授权
公开(公告)号：US5038846A
公开(公告)日：1991-08-13
申请号：US485587
申请日：1990-02-27
申请人： Herbert W. Doty
发明人： Herbert W. Doty
摘要： A casting mold (e.g., a cope and drag) is disposed on a drag slab having a sprue and a reaction chamber containing an alloyant to be selectively introduced into the melt as it is drawn through the reaction chamber during differential pressure, countergravity casting. A rubber formed between the mold and the drag slab communicates the reaction chamber to a plurality of narrow mold ingates that supply the melt treated (alloyed) in the reaction chamber to the mold cavity during countergravity casting.
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公开(公告)号：US5033531A
公开(公告)日：1991-07-23
申请号：US553577
申请日：1990-07-18
申请人： Charles Fisher , Hugh Kind , James Devine , Michael J. Gough , Ian N. Delaney
发明人： Charles Fisher , Hugh Kind , James Devine , Michael J. Gough , Ian N. Delaney
摘要： Molten iron is cast into a mould through a filter located in the runner system of the mould using a filter comprising a body having a plurality of cells, at least some of the cells having their walls at least partially coated with a first layer of wax and a second layer of an inoculant, such as graphite, calcium silicide or ferrosilicon, for the iron.
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76.发明授权
公开(公告)号：US4989662A
公开(公告)日：1991-02-05
申请号：US485449
申请日：1990-02-27
申请人： Richard J. Sabraw
发明人： Richard J. Sabraw
摘要： Apparatus and method for the differential pressure, countergravity casting of a melt of molten metal, such as nodular iron, containing a fugative alloyant, such as a magnesium nodularizing agent, susceptible to rapid loss from the melt over time wherein a source of the alloyant is so disposed on a lower portion of each mold as to contact the melt and replenish the alloyant content thereof when the lower mold portion of each mold is immersed in the melt for casting. An effective level of alloyant is thereby maintained in the melt throughout the casting of a plurality of molds in succession from the melt.
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77.发明授权Differential pressure, countergravity casting of individual charges of melt from a casting basin 失效来自铸造盆的熔体的单独电荷的差压，反重铸造
公开(公告)号：US4977946A
公开(公告)日：1990-12-18
申请号：US529236
申请日：1990-05-25
摘要： A charge of melt in an amount sufficient to cast only one mold is admitted to a casting basin from a melt-holding chamber. A casting mold is immersed in the freshly admitted charge and the charge is countergravity cast into the mold by establishing a suitable differential pressure between the mold and the charge. After casting, insufficient charge is left in the casting basin to cast the next mold whereupon the casting basin is supplied with the next fresh charge of the melt for casting the next mold. In this way, a fresh charge of melt is cast into each mold in a series of molds. Each charge of melt may be treated (e.g. nodularized) in-situ in the casting basin such that each mold is filled with a freshly treated (nodularized) charge of melt having an effective concentration of the alloyant therein.
摘要翻译： 一个足以浇铸一个模具的熔体装料从熔体保持室进入浇注盆。 将铸模浸入新进入的电荷中，并通过在模具和电荷之间建立适当的压差将电荷反向铸造到模具中。 在铸造之后，铸造盆中留下不足的电荷以铸造下一个模具，于是铸造盆被供应下一个新鲜的熔体熔体，用于铸造下一个模具。 以这种方式，将新鲜的熔体装入一系列模具中的每个模具中。 熔体的每个装料可以在浇铸盆中原位处理（例如，结节化），使得每个模具都填充有新鲜处理（结节状）的熔体，其中合金的浓度有效。
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公开(公告)号：US4955427A
公开(公告)日：1990-09-11
申请号：US351662
申请日：1989-05-15
申请人： Jay R. Hitchings
发明人： Jay R. Hitchings
摘要： A filter for molten metal with a particulate coating for simultaneously metallurgically treating and filtering is disclosed. A layer of particulates such as ferroalloy, deoxidizer, grain refiner, inoculant or master alloy is placed on the surface of a hard-fired ceramic or refractory cloth filter for treating liquid metal. The particles are held in place by a coating of carbonaceous resin which is applied to the surface of the filter and which also protects the filter and particles against abrasion and moisture. The placement of the particulate additives on the filter allows the molten metal to be metallurgically treated and filtered simultaneously.
摘要翻译： 公开了一种用于同时冶金处理和过滤的具有颗粒涂层的熔融金属过滤器。 将一层颗粒如铁合金，脱氧剂，晶粒细化剂，孕育剂或母合金放置在用于处理液态金属的硬质陶瓷或耐火布过滤器的表面上。 颗粒通过施加到过滤器表面上的碳质树脂涂层保持在适当位置，并且还保护过滤器和颗粒免受磨损和水分的影响。 颗粒添加剂在过滤器上的放置允许熔融金属被冶金处理和同时过滤。
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公开(公告)号：US4737199A
公开(公告)日：1988-04-12
申请号：US812035
申请日：1985-12-23
申请人： Bela V. Kovacs
发明人： Bela V. Kovacs
CPC分类号： C21D5/00
摘要： A method is disclosed which comprises: (a) forming a ferrous alloy melt consisting essentially of by weight, 3-4% carbon, 2.0-3.0% silicon, 0.1-0.9% manganese, up to 0.02% phosphorus, up to 0.002% sulphur, up to 1% contaminants or impurities, 0-0.4% molybdenum, 0-3.0% nickel or copper, and the reminder essentially iron, the melt being subjected to a graphite modifying agent in an amount and for a period of time effective to form either ductile or semiductile iron upon solidification; (b) heat treating the solidification of said melt by austempering to form a matrix consisting substantially of high carbon austenite and ferrite and a cell boundary having unreacted low carbon austenite; (c) heating said austempered iron to a pearlite forming temperature (1200.degree.-1300.degree. F.) and holding (2-5 minutes) at said temperature to permit the unreacted low carbon austenite to form pearlite; and (d) cooling said heat treated iron to room temperature.
摘要翻译： 公开了一种方法，其包括：（a）形成基本上由重量比为3-4％的碳，2.0-3.0％的硅，0.1-0.9％的锰，至多0.02％的磷，至多0.002％的硫组成的铁合金熔体 ，高达1％的污染物或杂质，0-0.4％的钼，0-3.0％的镍或铜，并且提醒基本上是铁，熔体经受石墨改性剂的量和一段时间有效形成 固化后的延性或延性铁; （b）通过奥氏体回火热处理所述熔体的固化，以形成基本上由高碳奥氏体和铁素体组成的基体和具有未反应的低碳奥氏体的电池边界; （c）将所述奥氏体铁在所述温度下加热至珠光体形成温度（1200〜-1300°F）并保持（2-5分钟），使未反应的低碳奥氏体形成珠光体; 和（d）将所述经热处理的铁冷却至室温。
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公开(公告)号：US4729873A
公开(公告)日：1988-03-08
申请号：US865019
申请日：1986-05-20
申请人： Jorge U. Shulz
发明人： Jorge U. Shulz
摘要： A process and apparatus for the production of materials such as steel, in which the different components are "interwoven" in such a manner that solid state materials are fed into a matrix, which is still in a liquid state for casting and that the mix, respectively, the conglomerate, formed in this manner, is made to freeze or stabilize and, afterwards, the cast structure is processed by conversion and/or heat treatment. In this manner, it is possible to, for example, store particularly hard, i.e., extremely hard ingredients as those used, for example, in the hardest armoured steel, in the form of particles, that is solid bodies in a softer, tougher matrix. In this manner, on the one hand, the welding ability of the composite can be substantially improved and, on the other hand, it is possible to exclude the otherwise common cracking sensitivity of particularly hard special steels because the softer, tougher matrix prevents the expansion of the crack in the structure.
摘要翻译： 用于生产诸如钢的材料的方法和装置，其中不同的组分以这样的方式“交织”，即将固态材料进料到仍处于液态的基质中，并且混合物， 分别以这种方式形成的砾石被冷冻或稳定，然后通过转化和/或热处理来加工铸造结构。 以这种方式，例如可以将特别硬的即例如最硬的装甲钢中使用的非常硬的成分以粒子的形式存储，即在较软，更坚韧的基质中的固体物质 。 以这种方式，一方面，可以显着提高复合材料的焊接能力，另一方面，可以排除特别硬的特殊钢的常见的开裂敏感性，因为较软的，更坚韧的基体防止膨胀 的裂缝在结构。
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