-
公开(公告)号：US4786466A
公开(公告)日：1988-11-22
申请号：US16624
申请日：1987-02-19
申请人： Michael O. Holowaty
发明人： Michael O. Holowaty
IPC分类号： C22C38/60
CPC分类号： C22C38/60
摘要： Composition and continuous casting method for producing a low-sulphur, free-machining steel, substantially free of lead and including in weight percent about 0.05-0.40 copper, 0.005-0.040 tellurium, 0.002-0.15 bismuth, 0.002-0.05 tin, up to 0.55 carbon, and less than 0.25 sulphur, traces (up to about 0.005 weight percent) of barium, and the balance being iron. The elements bismuth, tellurium and tin are added as a molten alloy to the molten steel and uniformly distributed therethrough. The elements copper and barium can be added separately into the steel stream ahead of the molten addition inflow. The mass is then cooled to provide a solid metal casting substantially free of blemishes and relatively free of surface checking and tearing. The casting is characterized by enhanced machining properties.
摘要翻译： 用于生产基本上不含铅的低硫，自由加工钢的组合物和连续铸造方法，包括重量百分比约0.05-0.40铜，0.005-0.040碲，0.002-0.15铋，0.002-0.05锡，至多0.55 碳和小于0.25的硫，痕量（高达约0.005重量％）的钡，余量为铁。 将元素铋，碲和锡作为熔融合金添加到钢水中并均匀分布在其中。 元素铜和钡可以分别添加到熔融加成流入之前的钢流中。 然后将该质量冷却以提供基本上没有污渍并且相对没有表面检查和撕裂的固体金属铸件。 该铸件的特征在于增强的加工性能。
-
2.发明授权
公开(公告)号：US4065385A
公开(公告)日：1977-12-27
申请号：US749813
申请日：1976-12-13
CPC分类号： B03D1/26 , B03B9/005 , B03D1/1406 , B03D1/1462 , B03D1/1475 , B03D1/1493
摘要： Coal fines are separated from a mixture containing liquid and coal fines in an apparatus comprising a combination surge tank and flotation tank employing air bubbles to urge the coal fines toward the overflow from the flotation tank.
摘要翻译： 在包括组合缓冲罐和使用气泡的浮选槽的设备中，将煤粉与含有液体和煤粉的混合物分离，以将煤粉推向浮选槽的溢流。
-
公开(公告)号：US4865805A
公开(公告)日：1989-09-12
申请号：US258690
申请日：1988-11-15
申请人： Michael O. Holowaty
发明人： Michael O. Holowaty
IPC分类号： C22C38/60
CPC分类号： C22C38/60
摘要： Composition and method for producing a low-sulphur, free-machining steel, substantially free of lead and including in weight percent about 0.05-0.40 copper, 0.005-0.040 tellurium, 0.002-0.35 bismuth, 0.002-0.05 tin, up to 0.55 carbon, and less than 0.25 sulphur, traces (up to about 0.005 weight percent) of barium, and the balance being iron. The elements bismuth, tellurium and tin are added as a molten alloy to the molten steel and uniformly distributed therethrough. The elements copper and barium can be added separately into the steel stream ahead of the molten addition inflow. The mass is then cooled to provide a solid metal casting substantially free of blemishes and free of surface checking and tearing. The casting is characterized by enhanced machining properties.
摘要翻译： 用于生产基本不含铅的低硫自由加工钢的组成和方法，包括重量百分比约0.05-0.40铜，0.005-0.040碲，0.002-0.35铋，0.002-0.05锡，至多0.55碳， 和小于0.25的硫，痕量（高达约0.005重量％）的钡，余量为铁。 将元素铋，碲和锡作为熔融合金添加到钢水中并均匀分布在其中。 元素铜和钡可以分别添加到熔融加成流入之前的钢流中。 然后将该质量冷却以提供基本上没有污渍并且没有表面检查和撕裂的固体金属铸件。 该铸件的特征在于增强的加工性能。
-
4.发明授权Method and alloy for introducing machinability increasing ingredients to steel 失效将可加工性增加成分引入钢的方法和合金
公开(公告)号：US4244737A
公开(公告)日：1981-01-13
申请号：US70670
申请日：1979-08-29
CPC分类号： C22C33/00
摘要： Lead, bismuth and tellurium and/or sulfur are added to steel, to increase the machinability of the steel, in an addition alloy consisting essentially of 5-40 parts lead, 5-40 parts bismuth, up to 6 parts tellurium and up to 25 parts sulfur. The alloy contains at least one of the group tellurium and sulfur, and the alloy has a melting point of at least about 400.degree. C. (752.degree. F.).
摘要翻译： 铅，铋和碲和/或硫被添加到钢中，以增加钢的机械加工性，添加合金基本上由5-40份铅，5-40份铋，最多6份碲和至多25 零件硫。 该合金含有碲和硫中的至少一种，合金的熔点至少为约400℃（752°F）。
-
公开(公告)号：US4255187A
公开(公告)日：1981-03-10
申请号：US70669
申请日：1979-08-29
CPC分类号： C22C38/60
摘要： A free machining cast steel shape containing bismuth which functions as a liquid metal embrittler. The ability of the bismuth to function as a liquid metal embrittler is enhanced by restricting the total amount of ingredients which lower the wetting ability of the bismuth to less than the bismuth content and by controlling the amount of strengthening elements added to the steel.
摘要翻译： 含有铋作为液态金属脆化剂的自由加工铸钢形状。 通过将铋的润湿能力降低到低于铋含量并通过控制添加到钢中的强化元素的量来限制成分的总量来增强铋作为液态金属脆化剂的能力。
-
公开(公告)号：US4389249A
公开(公告)日：1983-06-21
申请号：US370908
申请日：1982-04-22
申请人： Michael O. Holowaty , Ian F. Hughes , John Lude
发明人： Michael O. Holowaty , Ian F. Hughes , John Lude
CPC分类号： B22D1/00 , C21C7/0043
摘要： Alloying ingredients are added as shot to a pouring stream of molten steel flowing from a ladle to a casting mold. The size of the shot is controlled to enhance the recovery and uniformity of distribution in the steel of the alloying ingredients.
摘要翻译： 将合金成分加入到从钢包流入铸模的钢水倾倒流中。 控制射击的尺寸以增强合金成分钢中的分布恢复和均匀性。
-
公开(公告)号：US4342622A
公开(公告)日：1982-08-03
申请号：US237510
申请日：1981-02-23
申请人： Michael O. Holowaty
发明人： Michael O. Holowaty
摘要： In a formed coke process of the type in which carbonization and calcination of coal is carried out prior to briquetting, the hot calcined char is cooled by means of a hydrogen-rich gas at superatmospheric pressure so as to effect concurrent cooling and desulfurization of the char. High sulfur coal containing 1.5 to 4 wt. % sulfur can be used while obtaining a char and a formed coke product with a sulfur content of 0.8 wt. % or less. The cooling can be done in two stages: (1) a first stage in which sulfur removal and cooling to a temperature not lower than about 800.degree. F. are accomplished with a hydrogen-rich gas, and (2) a second stage in which further cooling to about 200.degree. F. or less is accomplished with an inert gas.
摘要翻译： 在压块之前进行煤的碳化和煅烧的成型焦炭方法中，通过在大气压下的富氢气体冷却热煅烧焦炭，以实现炭的同时冷却和脱硫 。 含硫1.5〜4wt。 可以使用硫含量，同时获得炭和形成的硫含量为0.8重量％的焦炭产品。 ％ 或更少。 冷却可以分两个阶段完成：（1）第一阶段，其中除硫和冷却至不低于约800°F的温度是用富氢气体完成的，和（2）第二阶段，其中 用惰性气体进一步冷却至约200°F或更低。
-
公开(公告)号：US4333776A
公开(公告)日：1982-06-08
申请号：US271681
申请日：1981-06-08
CPC分类号： C22C38/60
摘要： A steel billet is produced having free machining properties and substantially devoid of surface-cracking in the as-deformed condition and without surface conditioning. The steel contains bismuth and tellurium and may contain lead but in a smaller amount than is conventional in leaded, free machining steels. The billet was hot deformed at a temperature above about 920.degree. C. (1700.degree. F.) and below 1150.degree. C. (2100.degree. F.). The steel contains inclusions of MnTe and Bi.sub.2 Te.sub.3 as well as elemental Bi.
摘要翻译： 制造钢坯，其具有自由加工性能，并且在变形状态下并且没有表面调节基本上没有表面裂纹。 钢含有铋和碲，并且可能含有铅，但含量比常规含铅自由加工钢的量少。 坯料在高于约920℃（1700°F）和低于1150℃（2100°F）的温度下热变形。 钢包含MnTe和Bi2Te3以及元素Bi的夹杂物。
-
公开(公告)号：US4236939A
公开(公告)日：1980-12-02
申请号：US005965
申请日：1979-01-24
IPC分类号： C22C38/60
CPC分类号： C22C38/60
摘要： A steel billet is produced having free machining properties and substantially devoid of surface-cracking in the as-deformed condition and without surface conditioning. The steel contains bismuth and tellurium and may contain lead but in a smaller amount than is conventional in leaded, free machining steels. The billet was hot deformed at a temperature above about 920.degree. C. (1700.degree. F.) and below 1150.degree. C. (2100.degree. F.). The steel contains inclusions of MnTe and Bi.sub.2 Te.sub.3 as well as elemental Bi.
摘要翻译： 制造钢坯，其具有自由加工性能，并且在变形状态下并且没有表面调节基本上没有表面裂纹。 钢含有铋和碲，并且可能含有铅，但含量比常规含铅自由加工钢的量少。 坯料在高于约920℃（1700°F）和低于1150℃（2100°F）的温度下热变形。 钢包含MnTe和Bi2Te3以及元素Bi的夹杂物。
-
公开(公告)号：US4097245A
公开(公告)日：1978-06-27
申请号：US662449
申请日：1976-03-01
申请人： Michael O. Holowaty
发明人： Michael O. Holowaty
摘要： Particulized coal is subjected to a series of processing operations to produce a formed coke product. Among the operations are a single stage heating process comprising both carbonizing and calcining operations or, alternatively, a heating process in which carbonizing alone or carbonizing and calcining are conducted in separate stages. At least the carbonizing operation is conducted in the absence of extraneous gas so that the valuable by-product gases driven off from the coal during heating are unadulterated; and the carbonizing operation is conducted with gradual heating in the single stage heating process.
摘要翻译： 经过一系列加工操作来制造成型的焦炭产品。 其中的操作是包括碳化和煅烧操作的单阶段加热过程，或者可选地，其中单独进行碳化或碳化和煅烧在单独阶段进行的加热过程。 至少在没有外来气体的情况下进行碳化操作，使得在加热期间从煤中排出的有价值的副产物气体是未掺杂的; 并且在单级加热过程中逐渐加热进行碳化操作。
-
-
-
-
-
-
-
-
-
搜索结果
11 条记录 (耗时 0.011 秒)
