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公开(公告)号：US4408985A
公开(公告)日：1983-10-11
申请号：US301459
申请日：1981-09-14
摘要： A method is disclosed for fixing certain dangerous substances into recyclable waste foundry sand so that they are less likely to leach out into the environment. The method uses a roasting process which causes the dangerous substances to form insoluble compounds with the sand. One example is shown where hazardous waste foundry sand which contains acetic acid soluble lead contamination is treated by this method. In this example the lead is believed to react with the sand during the roasting process forming compounds such as lead silicate which are insoluble to acetic acid. The amount of lead which may be leached out into the environment is reduced to a safe level according to the currently accepted test methods promulgated by the U.S. Environmental Protection Agency. The method may be applied to the conversion of waste foundry sand into reusable sand or landfill which are less likely to leach dangerous substances into the environment.
摘要翻译： 公开了一种将某些危险物质固定在可回收废弃物铸造砂中的方法，使得它们不太可能浸出到环境中。 该方法采用焙烧过程，导致危险物质与沙子形成不溶性化合物。 一个例子显示了通过该方法处理含有乙酸可溶性铅污染物的危险废物铸造砂。 在这个例子中，铅被认为在焙烧过程中与砂形成反应，形成不溶于乙酸的化合物如硅酸铅。 根据目前公认的美国环境保护局颁布的测试方法，可能排入环境的铅含量降至安全水平。 该方法可以应用于将废弃砂轮转化为可再利用的沙子或垃圾填埋场，这些垃圾填埋场不太可能将危险物质浸入环境中。
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公开(公告)号：US4191578A
公开(公告)日：1980-03-04
申请号：US847829
申请日：1977-11-02
申请人： Donald S. Carter
发明人： Donald S. Carter
摘要： A release agent for separation of a pattern from a mold cavity or core or the like. The agent consists essentially of an organosiloxane polymer fluid, comminuted aluminum, and a fluorocarbon solvent. Illustratively, the agent may include 0.6% by weight of the organosiloxane polymer fluid. The illustrative organosiloxane polymer has a viscosity of approximately 12,500 centistokes. The illustrative agent includes 3.6% by weight of an aluminum paste including approximately 65-75%, by weight, of finely divided pigment-grade aluminum and 25-35% of mineral spirits vehicle. The fluorocarbon preferably is a non-propellant grade fluorocarbon such as trichlorotrifluoroethane.
摘要翻译： 用于从模腔或芯等分离图案的脱模剂。 该试剂基本上由有机硅氧烷聚合物流体，粉碎的铝和氟碳溶剂组成。 说明性地，试剂可以包含0.6重量％的有机硅氧烷聚合物流体。 说明性的有机硅氧烷聚合物的粘度约为12,500厘沲。 说明性试剂包括3.6重量％的铝浆，其包括约65-75重量％的细分颜料级铝和25-35％的矿物油。 氟碳化合物优选为非推进剂级氟碳化合物，例如三氯三氟乙烷。
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公开(公告)号：US4120930A
公开(公告)日：1978-10-17
申请号：US719807
申请日：1976-09-02
申请人： Jerome H. Lemelson
发明人： Jerome H. Lemelson
CPC分类号： B29C33/56 , B22C9/00 , B28B7/346 , B28B7/36 , B29K2705/00 , B29K2909/02 , B29K2909/04 , B29K2909/06
摘要： A method of molding wherein a mold for shaping a material to be molded is formed by casting a first mold base portion formed of a bulk material such as Portland cement, carbon, graphite or castable ceramic material and the like to define a mold cavity, and coating the mold cavity with a first metallic layer. Upon the metallic first layer, there is deposited a second hard surface layer formed of a material such as the carbides, nitrides, and oxides of tungsten, titanium, boron, silicon and aluminum.
摘要翻译： 一种模制方法，其中用于成形待模制材料的模具通过铸造由诸如波特兰水泥，碳，石墨或可浇注陶瓷材料等的散装材料形成的第一模底部来形成，以限定模腔;以及 用第一金属层涂覆模腔。 在金属第一层上沉积由诸如碳化物，氮化物和钨，钛，硼，硅和铝的氧化物的材料形成的第二硬表面层。
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94.发明授权Shaped articles of hydraulic cement compositions having a reflective surface 失效具有反射表面的水硬性水泥组合物的成形制品
公开(公告)号：US4098755A
公开(公告)日：1978-07-04
申请号：US782763
申请日：1977-03-25
CPC分类号： C04B41/009 , B28B7/0067 , B28B7/36 , C04B28/02 , C04B41/65 , Y02W30/92 , Y10S106/01 , Y10T428/31
摘要： Shaped articles such as tiles and panels are produced from aqueous slurries of hydraulic cement, with or without aggregate, to which "super" water reducers have been admixed, by casting in a synthetic polymer mold with glossy, water-repellent surface, to yield castings with highly reflective, glassy surfaces. Color pigments may be added to the formulation to yield castings with reflective, glossy colored surfaces.
摘要翻译： 诸如瓷砖和面板的成型制品由具有或不具有聚集体的水泥浆的水浆制成，通过在具有光滑的防水表面的合成聚合物模具中浇铸已经混合了“超级”减水剂，以产生铸件 具有高反射性，玻璃状表面。 可以向制剂中加入彩色颜料以产生具有反射光泽的有色表面的铸件。
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公开(公告)号：US4080130A
公开(公告)日：1978-03-21
申请号：US638313
申请日：1975-12-08
申请人： Helmut Seifert
发明人： Helmut Seifert
摘要： In a process and a machine for moulding ceramic articles, the provision of a substantially moisture impervious foil between the mould surfaces and the clay blank and the disposal of the foil after its use as a waste by-product. A foil exhibiting predominant plasticity rather than elasticity is selected to secure effective operation of the invention. The clay blank is extruded in strand form at a rate of extrusion which is independent of the rate of feeding clay blanks intermittently into the mould and a temporary storage station provides buffer capacity between the extrusion and moulding steps. The machine has structure adapted to achieve this operation.
摘要翻译： 在用于模制陶瓷制品的方法和机器中，在模具表面和粘土坯料之间提供基本上不可湿气的箔，并且在使用后作为废弃副产物处理箔。 选择显示主要可塑性而不是弹性的箔以确保本发明的有效操作。 粘土坯料以挤出速度挤出，其形式与间歇地进入模具中的粘土坯料的供给速率无关，并且临时储存站在挤出和成型步骤之间提供缓冲能力。 该机器具有适于实现该操作的结构。
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公开(公告)号：US4079108A
公开(公告)日：1978-03-14
申请号：US577334
申请日：1975-05-14
申请人： James Douglas Farfor
发明人： James Douglas Farfor
摘要： Reinforced cement panels are produced between a fixed lower mould and a movable upper mould each having a moulding surface covered with filter cloth. Suction is applied through ports in the lower mould to extract air and residual water, reinforcement is placed on the lower mould, a layer of slurry of uniform thickness is applied by traversing a depositor over the lower mould, and the upper mould is rested on the surface of the slurry. Vacuum is applied through arched connections from upper parts of manifolds on the upper mould and through passages in the upper mould to the filter cloth thereof to withdraw moisture from the slurry to create an uncured panel. Water-containing foam is admitted through the ports in the lower mould to release the uncured panel, whereupon the upper mould is raised with the uncured panel held thereto, traversed to a different position to rest the uncured panel on a support. Water-containing foam is then admitted through the arched connections of the upper mould to the filter cloth thereof to release it from the uncured panel. The upper mould is surrounded by clamping strips which seat on the slurry at the boundary of the mould and provide an impervious seal in this region.
摘要翻译： 在固定的下模具和可移动的上模具之间产生增强的水泥板，每个模具具有被滤布覆盖的模制表面。 通过下模具中的端口进行抽吸以提取空气和残留水，将加强件放置在下模具上，通过使沉积器穿过下模具施加均匀厚度的浆料层，并且将上模具搁置在 浆料表面。 真空通过拱形连接从上模具上的歧管的上部和上模具中的通道到其滤布施加，以从浆液中抽出水分，从而产生未固化的板。 含水泡沫通过下模具中的端口进入，以释放未固化的面板，随后将上模具与未固化的面板保持在其上升起，横穿到不同的位置以将未固化的面板搁置在支撑件上。 然后，含水泡沫通过上模具的拱形连接件进入其滤布，以将其从未固化的面板释放。 上模具由位于模具边界处的浆料上的夹紧条包围，并在该区域中提供不透水的密封。
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公开(公告)号：US4078294A
公开(公告)日：1978-03-14
申请号：US553899
申请日：1975-02-27
申请人： Jacques Maire , Robert Gremion
发明人： Jacques Maire , Robert Gremion
CPC分类号： B28B7/36 , Y10T29/4981 , Y10T29/49826
摘要： This invention relates to the making of negatives intended for the production of bodies which contain cavities of predetermined shapes.The term "negative" signifies a disposable core member, for example as used in some molding techniques such as the lost wax process. The negative at least partly matches the cavities which latter form two independent systems of regularly distributed intersecting channels with the channels in any one same system intercommunicating via ducts which are themselves regularly distributed.The method according to the invention consists in stacking plates which are made of an easily disposable substance and are perforated with regularly distributed holes which leave between them continuous bands of said substance the intersections of which form nodes and the width of which is less than the maximum dimension of the holes: this stacking operation is effected in such a way that holes correspond with holes and nodes with nodes, and the plates are spaced apart from one another by spacers which are also made of an easily disposable substance and whose maximum cross-sectional area is the same as that of said nodes and which are positioned over each of said nodes.The invention also extends to the negatives whenever made by the method.
摘要翻译： 本发明涉及制造用于生产包含预定形状的空腔的主体的底片。
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公开(公告)号：US4055322A
公开(公告)日：1977-10-25
申请号：US631485
申请日：1975-11-13
申请人： Hugh I. Cassidy
发明人： Hugh I. Cassidy
IPC分类号： B28B7/36
CPC分类号： B28B7/362
摘要： There is disclosed an article useful for producing concrete with textured patterns which includes a membrane of water permeable material having a pattern prepared on one side thereof with a water soluble retardant for the setting of cement and with the retardant pattern completely covered with a waterproof film that is bonded to the membrane immediately adjacent the retardant pattern. There is also disclosed a method for preparing concrete to have a pattern on its surface employing the article.
摘要翻译： 公开了一种用于生产具有纹理图案的混凝土的制品，其包括具有在其一侧上制备的图案的水可渗透材料的膜，其具有用于固化水泥的水溶性阻燃剂，并且阻挡剂图案完全被防水膜覆盖， 被紧贴在阻挡图案上的膜上。 还公开了一种制备混凝土以在其表面上具有采用该制品的图案的方法。
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99.发明授权
公开(公告)号：US3938922A
公开(公告)日：1976-02-17
申请号：US455749
申请日：1974-03-28
申请人： Fred Darroll Godley
发明人： Fred Darroll Godley
CPC分类号： B28B23/04 , B28B7/0032 , B28B7/0035 , B28B7/0073 , B28B7/36 , B28B7/42
摘要： Cast panels for building assembly and erection are formed and cured through the use of an apparatus which particularly facilitates high rates of production of such panels and thereby facilitates more economical building construction practices. Fluid materials being cast into panels are received within forms which comprise a cured concrete bed defining a horizontal planar surface maintained at an elevated temperature. Following curing of the fluid materials cast into the forms, stripping of the panels from the form is facilitated by vertically movable side forming members and by bulkheads separating the cured materials into predetermined panel lengths.
摘要翻译： 用于建筑组装和架设的铸造板通过使用特别有助于高速生产这种面板的设备而形成和固化，从而促进了更经济的建筑施工实践。 被浇铸成板的流体材料被接纳在包括固化混凝土层的形式中，固化的混凝土层限定了保持在高温下的水平平面。 在浇铸成形式的流体材料固化之后，通过可垂直移动的侧面形成构件和通过将固化材料分隔成预定面板长度的隔板来促进板的剥离。
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公开(公告)号：US3862881A
公开(公告)日：1975-01-28
申请号：US37930673
申请日：1973-07-16
CPC分类号： B28B7/368 , B28B7/46 , C04B28/14 , C04B2111/00068 , Y10T428/24421 , Y10T428/252 , Y10T428/26 , C04B7/00 , C04B40/00 , C04B40/0071
摘要： A gypsum molded structure which comprises gypsum having a lamellar structure in which the (010) planes are uniformly orientated parallel in one direction. The structure is obtained by causing a hydraulically setting material, comprising gypsum, to set as it is subjected, together with excess water, to pressure thereby to discharge the excess water.
摘要翻译： 一种石膏模制结构，其包括其中（010）面在一个方向上均匀取向的具有层状结构的石膏。 该结构是通过使包含石膏的水硬固化材料与多余的水一起被施加压力而获得的，从而排出多余的水。
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