专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

81. 发明授权

US06638336B1 Manufacture of cost-effective titanium powder from magnesium reduced sponge 失效
公开(公告)号：US06638336B1
公开(公告)日：2003-10-28
申请号：US10145532
申请日：2002-05-13
申请人： Victor A. Drozdenko , Anatoli M. Petrunko , Anatoli E. Andreev , Oleksiy P. Yatsenko , Orest M. Ivasishin , Dmitro G. Savvakin , Vladimir S. Moxson , Francis H. Froes
发明人： Victor A. Drozdenko , Anatoli M. Petrunko , Anatoli E. Andreev , Oleksiy P. Yatsenko , Orest M. Ivasishin , Dmitro G. Savvakin , Vladimir S. Moxson , Francis H. Froes
IPC分类号： B22F904
CPC分类号： C22B34/1295 , B22F2998/10 , C22B34/1272 , C22C1/0416 , C22B34/12 , B22F9/04 , B22F1/0088
摘要： The cost-effective titanium powder is manufactured by (a) magnesium-thermic reduction of titanium chlorides characterized by the formation of a hollow block of the reaction mass having an open cavity in the center of the block, (b) thermal-vacuum separation of the hollow block from excessive Mg and MgCl2 at 850-950° C. and residual pressure of 10−2-10−3 mm Hg, (c) cooling of obtained titanium hollow block in a H2-contained atmosphere at an excessive hydrogen pressure, (d) crushing the hydrogenated titanium block, (e) grinding the crushed titanium pieces into the powder combined with a hydro-metallurgical treatment of obtained titanium powder in a diluted aqueous solution of at least one chloride selected from magnesium chloride, sodium chloride, potassium chloride, or titanium chloride, and (f) drying and, optionally dehydrating the titanium powder ground to a predetermined particle size. The formation of the hollow block of the reaction mass with the open cavity in the center of the block is carried out by accelerating the reaction mass on the inside surface of the reactor. The hydro-metallurgical treatment of titanium powder is carried out in the solutions having the total content of chlorides of 0.5-10 wt. %, at the powder-to-solution weight ratio from 1:1 to 1:4. The cooling of the titanium hollow block in the hydrogen-contained atmosphere is carried out to the temperature of 550-450° C. at the excessive hydrogen pressure of 0.2 bar or higher. The productivity of the innovative process is higher, the energy consumption is lessened more than double, the duration of the processing cycle is decreased by 3. The shorter time of high-temperature stages results in significant improvement of titanium powder quality because it prevents the oxidation and nitrogenation of the metal. The powder dispersion is increased caused by porous and poorly sintered structure of the reaction mass. Cooling the block in the presence of hydrogen also increases the powder quality and the yield of fine powder fractions during the hydro-metallurgical treatment.

82. 发明授权

US5968224A Recovery of titanium values from titanium grinding swarf by electric furnace smelting 失效
标题翻译：通过电炉冶炼从钛磨屑回收钛值
公开(公告)号：US5968224A
公开(公告)日：1999-10-19
申请号：US126867
申请日：1998-07-31
申请人： Stephen J. Gerdemann , Jack C. White
发明人： Stephen J. Gerdemann , Jack C. White
IPC分类号： C22B1/244 , C22B34/12
CPC分类号： C22B34/1295 , C22B1/244 , C22B34/1218 , Y02P10/214 , Y02P10/23
摘要： A method for the recovery of valuable materials from titanium grinding swarf is provided comprising the steps of sieving the accumulated titanium grinding swarf to remove unwanted coarse trash and grinding wheel fragments, pelletizing, and smelting in an electric arc furnace to produce ferrotitanium and/or high titanium slag.
摘要翻译：提供了一种用于从钛研磨切屑回收有价值的材料的方法，包括筛选积累的钛研磨切屑以除去不需要的粗废料和砂轮碎片，在电弧炉中造粒和冶炼以产生铁钛和/或高钛渣。

83. 发明授权

US4793854B1 失效
公开(公告)号：US4793854B1
公开(公告)日：1992-10-27
申请号：US5177287
申请日：1987-05-20
申请人： TOKYO SHIBAURA ELECTRIC CO
发明人： KAZUMI SHIMOTORI , YOSHIHARU OCHI , HIDEO ISHIHARA , TAKENORI UMEKI , TAKASHI ISHIGAMI
IPC分类号： C22C29/02 , C22B9/22 , C22B34/12 , C22C14/00 , C23C14/34 , C25C3/28 , H01L21/768 , H01L23/532
CPC分类号： C22B34/129 , C22B9/228 , C22B34/1295 , C22C14/00 , H01L21/76841 , H01L23/53257 , H01L2924/0002 , H01L2924/00

84. 发明授权

US4961776A Cold hearth refining 失效
标题翻译：冷炉精炼
公开(公告)号：US4961776A
公开(公告)日：1990-10-09
申请号：US363160
申请日：1989-06-08
申请人： Howard R. Harker
发明人： Howard R. Harker
IPC分类号： B22D11/11 , C22B9/22 , C22B34/12
CPC分类号： B22D11/11 , C22B34/1295 , C22B9/226 , C22B9/228
摘要： In the particular embodiments of the invention described in the specification, a hearth for melting and refining metal has a hearth bed with cooling pipes so that a skull of molten metal is formed and energy input devices are directionally controlled to permit the skull to form a barrier between a melting region where solid material is introduced into the hearth and a refining region where molten material is refined before being poured into a mold. In one embodiment, the barrier formed by the skull provides a dam with a narrow channel between the melting region and the refining region, and in another form, the barrier provided by the skull consists of spaced peninsulas extending from opposite sides of the hearth to provide a serpentine path between the melting region and the refining region.
摘要翻译：在本说明书中描述的本发明的特定实施例中，用于熔化和精炼金属的炉床具有带有冷却管的炉床，从而形成熔融金属的颅骨，并且能量输入装置被定向控制以允许颅骨形成屏障在将固体材料引入炉床的熔融区域和熔融材料在被注入模具之前被精炼的精炼区域之间。在一个实施例中，由颅骨形成的屏障提供了在熔化区域和精炼区域之间具有窄通道的坝，并且在另一种形式中，由颅骨提供的屏障由从炉膛的相对侧延伸的间隔开的半岛组成，以提供在熔融区域和精炼区域之间的蛇形路径。

85. 发明授权

US4749409A Method of purifying refractory metal 失效
$Method of purifying refractory metal$
标题翻译：难熔金属的净化方法
公开(公告)号：US4749409A
公开(公告)日：1988-06-07
申请号：US90914
申请日：1987-08-31
申请人： Hiroshi Ishizuka
发明人： Hiroshi Ishizuka
IPC分类号： C22B9/02 , C22B34/00 , C22B34/12 , C22B34/14
CPC分类号： C22B34/14 , C22B34/00 , C22B34/1295 , C22B9/02 , C22B9/04 , Y02P10/234
摘要： A method of purifying refractory metal, comprising: providing a distillation space, said space comprising both a heatable portion and a condensation portion in communication with each other, and being closed but provided with gas inlet- and gas outlet openings, said degassing opening being located in the condensation portion, placing a mixed deposit of a refractory metal with magnesium metal and magnesium chloride in said heatable portion, heating said deposit under a subatmospheric pressure to temperatures high enough to cause evaporation of magnesium and magnesium chloride, degassing the space through the gas outlet opening, cooling magnesium and magnesium chloride to deposit in the condensation portion, starting introduction of an inert gas, through the gas inlet opening, at a timing where there is a steady, substantially decreased pressure of the thus forming vapor on the order of 10.sup.-2 Torr in the space, keeping supply of the inert gas while degassing through said openings, respectively, so that an increased but still subatmospheric pressure less than 1 Torr is maintained in the space.
摘要翻译：一种净化难熔金属的方法，包括：提供蒸馏空间，所述空间包括彼此连通的可加热部分和冷凝部分，并且被封闭，但设置有气体入口和气体出口，所述脱气开口位于在冷凝部分中，将难熔金属与镁金属和氯化镁的混合沉积物放置在所述可加热部分中，将所述沉积物在低于大气压的压力下加热至高到足以引起镁和氯化镁蒸发的温度，使空气通过气体脱气出口开口，冷却镁和氯化镁以沉积在冷凝部分中，在这样形成的蒸汽的压力稳定的基本上降低的时刻，通过气体入口开始引入惰性气体。 -2乇在空间中，保持惰性气体的供应，同时通过所述开口脱气使得在该空间中保持小于1托的增加但仍然低于大气压的压力。

86. 发明授权

US4738713A Method for induction melting reactive metals and alloys 失效
标题翻译：感应熔化反应性金属和合金的方法
公开(公告)号：US4738713A
公开(公告)日：1988-04-19
申请号：US938046
申请日：1986-12-04
申请人： Donald R. Stickle , Shelby W. Scott , Donald J. Chronister
发明人： Donald R. Stickle , Shelby W. Scott , Donald J. Chronister
IPC分类号： C22B9/16 , C22B9/00 , C22B9/04 , C22B34/00 , C22B34/12 , C22B34/14 , C22B34/24 , C22B34/32 , C22B34/34 , C22B59/00 , C22B60/00 , C22B60/02 , F27B14/06 , H05B6/24 , C22B4/00
CPC分类号： C22B34/32 , C22B34/1295 , C22B34/14 , C22B34/24 , C22B34/34 , C22B59/00 , C22B60/0286 , C22B60/0291 , C22B9/003 , C22B9/04 , F27B14/063 , H05B6/24 , Y02P10/253
摘要： A method for melting a charge of reactive metals or metal alloys is disclosed in which the charge is induction melted in a segmented crucible in the absence of insulating slag, under a non-reactive environment utilizing an induced alternating current.

87. 发明授权

US4624714A Microstructural refinement of cast metal 失效
标题翻译：铸造金属微观结构细化
公开(公告)号：US4624714A
公开(公告)日：1986-11-25
申请号：US652658
申请日：1984-10-31
申请人： Robert J. Smickley , Louis E. Dardi
发明人： Robert J. Smickley , Louis E. Dardi
IPC分类号： C21D1/00 , C22B9/14 , C22B34/12 , C22B34/14 , C22F1/18
CPC分类号： C22B9/14 , C21D1/00 , C22B34/1295 , C22B34/14 , C22F1/183 , C22F1/186
摘要： A method of refining the microstructure of metals which undergo a phase transformation at high temperatures by diffusing a solute material into the metal at a temperature below the normal transformation temperature. The solute induces the phase transformation and removal of the solute at a temperature near the transformation temperature reverses the transformation. These phase transformations refine the microstructure of the metal so treated. The method is particularly useful to Group IVB metals i.e. Zr, Hf and Ti.
摘要翻译：一种通过在低于正常转变温度的温度下将溶质材料扩散到金属中来精炼在高温下进行相变的金属微结构的方法。溶质在接近转变温度的温度下诱导相变和去除溶质反转了转化。这些相变会改善如此处理的金属的微观结构。该方法对于IVB族金属，即Zr，Hf和Ti特别有用。

88. 发明授权

US3022158A Manufacture of metallic titanium 失效
标题翻译：制造金属钛
公开(公告)号：US3022158A
公开(公告)日：1962-02-20
申请号：US84210259
申请日：1959-09-24
申请人： ALLIED CHEM
发明人： KALLFELZ ALOIS J
IPC分类号： C22B34/12
CPC分类号： C22B34/1272 , C22B34/1295

89. 发明授权

US2875033A Method of separating titanium crystals 失效
标题翻译：分离钛晶体的方法
公开(公告)号：US2875033A
公开(公告)日：1959-02-24
申请号：US66489857
申请日：1957-06-11
申请人： NEW JERSEY ZINC CO
发明人： GRADY LESTER D
IPC分类号： B02C13/00 , C22B34/12 , C25C7/08
CPC分类号： C25C7/08 , B02C13/00 , C22B34/1295

90. 发明授权

US2866700A Drip-melting of refractory metals 失效
$Drip-melting of refractory metals$
标题翻译：难熔金属的滴熔
公开(公告)号：US2866700A
公开(公告)日：1958-12-30
申请号：US42743254
申请日：1954-05-04
申请人： UNION CARBIDE CORP
发明人： BOHNET WILLIAM J , BAGLEY GLEN D
IPC分类号： C22B34/12
CPC分类号： C22B34/1295

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式