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公开(公告)号：US4412578A
公开(公告)日：1983-11-01
申请号：US244955
申请日：1981-03-18
摘要： It is known to contact molten cast iron with various treating agents in the casting mold in order to influence the base structure or the form of the graphite. Such casting molds for making castings of cast iron containing vermicular and/or spheroidal graphite are provided with an intermediate chamber, which is provided in the pouring system between the pouring gate and the ingate to the casting mold proper. That intermediate chamber serves to receive the graphitizing agent and to contact it with the molten cast iron. To permit a functional adaptation of the chamber surface area or the surface area of the treating agent contained in the chamber to the pouring gate, which changes as the pouring proceeds, the casting mold is provided with a frustopyramidal intermediate chamber which has a rectangular base disposed in the parting plane of the mold.
摘要翻译： 已知在浇铸模具中使熔融铸铁与各种处理剂接触，以便影响石墨的基础结构或形式。 这种用于制造含有蠕墨铸铁和/或球墨铸铁的铸铁铸件的铸造模具设置有中间室，该中间室设置在浇注浇口和浇注浇口之间的浇注系统中。 该中间室用于接收石墨化剂并将其与熔融铸铁接触。 为了允许将腔室表面积或容纳在腔室中的处理剂的表面积进行功能性调整到浇注浇口的倾斜浇口，浇注模具设置有具有矩形基部的截头锥形中空室， 在模具的分型平面上。
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2.发明授权
公开(公告)号：US4540436A
公开(公告)日：1985-09-10
申请号：US626634
申请日：1984-07-02
CPC分类号： C22C33/08 , B22F1/0011 , C21C1/105
摘要： The present invention provides a treatment agent for cast iron melts based upon ferrosilicon magnesium with a silicon content of from 40 to 80% by weight and a magnesium content of from 0.5 to 15% by weight, said agent being in the form of granules with a specific surface area of from 0.2 to 0.8 m.sup.2 /g. according to BET.The present invention also provides a process for the production of this treatment agent, wherein a jet of molten ferrosilicon magnesium alloy is directed on to a bounce plate made of fire-resistant material and the melt droplets which bounce back from bounce plate are allowed to solidify in a liquid-filled collection receiver.
摘要翻译： 本发明提供一种基于硅含量为40〜80重量％，镁含量为0.5〜15重量％的硅铁镁的铸铁熔体处理剂，所述试剂为颗粒形式， 比表面积为0.2〜0.8m2 / g。 根据BET。 本发明还提供了一种制备该处理剂的方法，其中将熔融硅铁镁合金的射流引导到由耐火材料制成的反弹板上，并使从反弹板反弹的熔体液滴固化 在充满液体的收集器中。
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3.发明授权
公开(公告)号：US5087290A
公开(公告)日：1992-02-11
申请号：US555572
申请日：1990-07-19
CPC分类号： C21C7/0056 , B22D1/00 , C21C1/105 , C22C33/10
摘要： The present invention provides an agent for the desulphurization, magnesium treatment and inoculation of cast iron melts in a single step based on a silicon alloy, wherein the agent has the following composition:______________________________________ silicon 30 to 80% by wt. magnesium 5 to 30% by wt. calcium 0.1 to 25% by wt. bismuth 0.1 to 2% by wt. cerium mischmetal 0.1 to 5% by wt. iron balance. ______________________________________ The present invention also provides processes for the production of this agent. In addition, the present invention is concerned with the use of this agent for the simultaneous desulphurization, magnesium treatment and inoculation of cast iron melts in a single step.
摘要翻译： 本发明提供一种基于硅合金的单一步骤中的脱铁，镁处理和铸铁熔体接种剂，其中所述试剂具有以下组成：硅氧烷30-80重量％ 镁5〜30重量％。 - 0.1〜25重量％ 铋0.1〜2重量％ - 微粉碎0.1〜5重量％ 铁的平衡。 - 本发明还提供了用于生产该试剂的方法。 此外，本发明涉及该试剂在单步骤中同时进行脱硫，镁处理和接种铸铁熔体的用途。
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4.发明授权
公开(公告)号：US4292075A
公开(公告)日：1981-09-29
申请号：US90719
申请日：1979-11-02
摘要： A slow fade cast iron inocculant is made up of(a) a silicon-containing matrix of iron silicon alloys and having a crystal structure,(b) compounds, present in the matrix crystal structure, of high-melting point calcium aluminum silicates, generally in the form CaO.Al.sub.2 O.sub.3.2SiO.sub.2 +Al.sub.2 O.sub.3.2SiO.sub.2, and(c) a dicalcium aluminum silicate material with up to 20% by weight of silicon carbide and 10% by weight of calcium carbide.The relation between the matrix and the high-melting point calcium aluminum silicates to the dicalcium silicate material is about 1 to 0.05-0.2. The amount of high-melting point calcium aluminum silicates in the matrix is 5 to 30% by weight and, more specially 8 to 15% by weight.
摘要翻译： 一种缓慢的褪色铸铁接种剂由（a）含铁基质的硅基合金构成，具有晶体结构，（b）存在于基体晶体结构中的高熔点钙铝硅酸盐的化合物，通常 以CaO.Al2O3.2SiO2 + Al2O3.2SiO2的形式，和（c）具有高达20重量％的碳化硅和10重量％的碳化钙的二硅酸铝硅酸盐材料。 基质与硅酸钙高熔点硅酸钙之间的关系约为1〜0.05-0.2。 基体中的高熔点钙铝硅酸盐的量为5〜30重量％，更特别为8〜15重量％。
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5.发明授权Inoculant alloy based on ferrosilicon or silicon and process for its preparation 失效基于硅铁或硅的接触合金及其制备方法
公开(公告)号：US4643768A
公开(公告)日：1987-02-17
申请号：US774323
申请日：1985-09-10
CPC分类号： C22C35/005
摘要： An inoculant alloy based on ferrosilicon or silicon for the manufacture of cast iron with lamellar, compact or spheroidal graphite is described, this alloy comprising(a) between 0.1 and 10% of barium and/or zirconium,(b) less than 2% of aluminum and(c) 0.3% of calcium.This inoculant alloy is distinguished by particularly good suppression of the precipitation of carbide and by its preparation process which is industrially simple and thus has favorable costs.
摘要翻译： 描述了一种基于硅铁或硅的用于制造具有层状，致密或球形石墨的铸铁的接种剂合金，该合金包含（a）0.1至10％的钡和/或锆，（b）小于2％的 铝和（c）0.3％的钙。 这种接种剂合金的特征在于特别好的碳化物沉淀抑制和其工业上简单的制备方法，因此具有良好的成本。
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6.发明授权
公开(公告)号：US5264023A
公开(公告)日：1993-11-23
申请号：US979218
申请日：1992-11-20
CPC分类号： C21C1/025 , C21C7/0056 , C21C7/06
摘要： The invention concerns a cored wire comprising a metal tube and a filling of magnesium or other pyrophoric metals passivated with from 0.5 to 5% by weight of organic nitrogen compounds. As the passivating agent, compounds from the series of the s-triazine and/or guanidine derivatives, preferably from 2 to 5% by weight of dicyandiamide, applied by means of an adhesion promoter, are preferred. The wires used in accordance with the invention serve to produce cast iron with spheroidal and vermicular graphite, to desulphurize pig iron melts or to produce metal alloys.
摘要翻译： 本发明涉及一种芯线，其包括金属管和用0.5至5重量％的有机氮化合物钝化的镁或其他自燃金属的填充物。 作为钝化剂，优选通过粘合促进剂施加来自一系列s-三嗪和/或胍衍生物的化合物，优选2至5重量％的双氰胺。 根据本发明使用的电线用于生产具有球形和蠕墨性石墨的铸铁，以对生铁熔体进行脱硫或生产金属合金。
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公开(公告)号：US4970051A
公开(公告)日：1990-11-13
申请号：US251561
申请日：1988-09-30
摘要： The present invention provides an agent for the introduction of nitrogen into cast iron, wherein it contains or consists of at least 50% by weight of at least one nitrogen-containing compound with an N--C--N structure and/or a mixture of calcium cyanamide with nitrides of silicon, ferrosilicon, manganese and chromium.The present invention also provides a process for the introduction of nitrogen into cast iron using this agent.
摘要翻译： 本发明提供了一种用于将氮气引入铸铁中的试剂，其中其含有至少50重量％的至少一种具有NCN结构的含氮化合物和/或氰氨化钙与氮化物的混合物 硅，硅铁，锰和铬。 本发明还提供了使用该试剂将氮引入铸铁的方法。
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